Commit Graph
57 Commits
Author SHA1 Message Date
Niels LohmannandClaude Sonnet 5 ed513715a8 Document that a NUL byte in the input is treated as end of input (#5534)
* docs: document that a NUL byte in the input is treated as end of input

A NUL byte anywhere in the input - trailing, or embedded ahead of more
otherwise well-formed JSON - is currently treated the same as genuine
end of input, so parsing silently stops there instead of raising the
parse_error.101 any other unexpected byte triggers. This mirrors the
NUL-terminated-C-string convention already used when no explicit input
length is given (json::parse(const char*) already stops at strlen()),
just applied uniformly rather than only when a length is genuinely
unavailable.

This behavior predates this change and is not being altered here -
changing it would be an observable, backwards-incompatible behavior
change for any caller that (knowingly or not) depends on it, which is
not something to do silently in a patch. Documenting the current,
verified behavior as a new FAQ entry instead, so it's an intentional
and discoverable part of the contract rather than a surprise.

Fixes #5530.

Signed-off-by: Niels Lohmann <niels.lohmann@gmail.com>
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01N4RQ1Ahan5YAGbnAQGjZTY

* Add JSON_STRICT_NUL_HANDLING opt-in macro for issue #5530

A NUL byte anywhere in the input is currently treated the same as real
end of input, rather than raising parse_error.101 like any other
unexpected byte (documented in the previous commit's FAQ entry). A full
unconditional fix was tried in PR #5532 but rejected as too risky to
ship by default: any caller could depend on the current behavior, even
unknowingly (e.g. a zero-padded buffer). On PR #5534, gregmarr proposed
a compile-time opt-in flag instead, and the maintainer agreed, wanting
it available now and defaulting to the corrected behavior in 4.0.0.

This mirrors the existing JSON_BRACE_INIT_COPY_SEMANTICS precedent as
closely as sensible:
- JSON_STRICT_NUL_HANDLING defaults to 0 (off); the three lexer sites
  that treat '\0' as EOF/comment-terminator are gated with
  `#if !JSON_STRICT_NUL_HANDLING` so the default-off behavior is
  byte-for-byte identical to today's.
- input_adapters.hpp's `T (&array)[N]` overload additionally trims a
  single trailing '\0' from a `char` array (e.g. a string literal like
  `json::parse("123")`) when the macro is on, so that case keeps
  working; every other element type (unsigned char, std::uint8_t, ...)
  always keeps its full extent. This intentionally does *not* reuse the
  existing strlen()-based pointer overload via SFINAE-excluding `char`
  from the array overload, as originally sketched for this change: that
  approach is ambiguous against the newer generic container overload
  added since PR #5532, and even where it compiles, strlen()-scanning a
  `char` array that is not NUL-terminated within its bounds reads past
  the end of the array (confirmed with AddressSanitizer). Trimming only
  a single trailing byte, without scanning, avoids both problems.
- Documented via docs/mkdocs/docs/api/macros/json_strict_nul_handling.md,
  linked from the macros index/nav/features page, the FAQ entry, and
  the parse/accept/operator>> reference pages.
- Tested in unit-class_parser.cpp and unit-deserialization.cpp, default
  state unguarded and opt-in state guarded. Since the library itself
  #undefs the macro at the end of json.hpp (as JSON_BRACE_INIT_COPY_SEMANTICS
  already does), a plain `#if defined(JSON_STRICT_NUL_HANDLING)` guard
  after the include never actually triggers; the tests instead capture
  the command-line value into a test-local macro before including the
  header. A few pre-existing fixtures elsewhere (std::array<uint8_t, N>
  sized one larger than their literal, relying on value-initialization
  to silently add a trailing zero byte) needed the same one-byte
  adjustment to keep passing under the opt-in behavior.

Unlike the precedent, this adds a proper `JSON_StrictNulHandling` CMake
option (rather than a raw -DCMAKE_CXX_FLAGS injection) and wires its
ci_test_strict_nul_handling target into the ci_cmake_options job matrix
in .github/workflows/ubuntu.yml, so the opt-in build is actually
exercised in CI -- closing the one gap in the precedent's own CI setup
(ci_test_brace_init_copy_semantics is defined but never referenced by
any workflow, so it has never actually run).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* Clarify where JSON_STRICT_NUL_HANDLING does not reject NUL bytes

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <niels.lohmann@gmail.com>
Signed-off-by: Niels Lohmann <mail@nlohmann.me>
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-24 06:55:21 +02:00
Niels Lohmann a2b19d6158 Honor allow_exceptions=false for excessive array/object size (out_of_range.408) (#5467)
* Honor allow_exceptions=false for excessive array/object size (out_of_range.408)

The SAX DOM parsers' start_object()/start_array() threw out_of_range.408
directly via JSON_THROW when a binary format (CBOR/UBJSON/BJData) declared
a container size exceeding max_size(), bypassing the allow_exceptions flag
that every other malformed-input error path in these classes honors via
parse_error(). This meant that json::from_cbor(data, true, false) etc.
could still throw (or abort under JSON_NOEXCEPTION) instead of returning a
discarded value, contrary to the allow_exceptions=false contract.

Route all four call sites (two in json_sax_dom_parser, two in
json_sax_dom_callback_parser) through parse_error() instead, matching the
existing error-handling pattern used elsewhere in this file. Behavior is
unchanged when allow_exceptions is true (the default); the exception
message and type are identical.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* Drop a non-portable exact exception message check in the 408 test

The allow_exceptions=false regression test checked the exact message
text produced when allow_exceptions=true (the default). On platforms
where std::size_t is 32-bit (e.g. mingw x86, MSVC Win32 builds), a
declared CBOR length of 2^63 is intercepted earlier, by
get_cbor_container_size()'s own (pre-existing, already correct)
length-narrowing check, with different wording than this fix's
start_array()/start_object() size check -- same error code, same
"still throws when allow_exceptions=true" guarantee, different text.

CHECK_THROWS_AS already verifies the behavior this test cares about
(still throws json::out_of_range, unchanged); drop the exact-message
assertion since it isn't portable across size_t widths and doesn't
add coverage of this fix specifically.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* Fix -Werror=unused-result on json::from_cbor() in the 408 regression test

from_cbor() is [[nodiscard]]; CHECK_THROWS_AS() otherwise discards its
result, which GCC flags under -Werror. Assign to a throwaway json, as
the rest of the suite already does for from_cbor()/from_msgpack().

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2026-09-22 21:52:31 +02:00
Niels Lohmann e485441123 Restore a duplicate key's prior value when the callback rejects its new value (#5466)
* Restore a duplicate key's prior value when the callback rejects its new value

json_sax_dom_callback_parser::key() unconditionally overwrote the object
slot for a key with a `discarded` placeholder as soon as the key was
accepted by the parser callback. For a duplicate key (legal JSON), this
destroyed the pre-existing value from an earlier occurrence of the same
key before the new value was even parsed. If the new value was then
rejected by the callback, remove_discarded_value() erased the member
entirely instead of leaving the original value in place, contradicting
the documented behavior that a discarded value behaves as if it was
never read.

Add a small stash of (slot pointer, previous value) pairs so that when
key() overwrites an existing member with the discarded placeholder, the
previous value can be restored later if the corresponding value (scalar,
object, or array) is rejected, instead of being erased. The stash entry
is dropped without restoring once the new value is definitively
accepted (in handle_value() for scalars, end_object()/end_array() for
containers), so a duplicate key whose new value is accepted still keeps
the last value as before. Non-duplicate keys are unaffected: rejecting
their value still removes the member entirely, since there is nothing
to restore.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* Mark parser-callback test lambdas noexcept to fix GCC -Wnoexcept -Werror

GCC's libstdc++ std::function move assignment evaluates a noexcept
check that invokes a wrapped callable in an unevaluated context; a
non-noexcept parser_callback_t lambda then trips -Wnoexcept ("noexcept-
expression evaluates to 'false'"), which CI's ci_test_gcc job builds
with -Werror. The pre-existing parser_callback_t test lambdas in this
file already work around this by declaring themselves noexcept; apply
the same fix to the three added lambdas that didn't.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2026-09-22 21:52:30 +02:00
Niels Lohmann d9c55eb225 Split unit-regression2.cpp so the MinGW linker can relocate it (#5511)
Linking test-regression2 with clang and MinGW fails with

    relocation truncated to fit: IMAGE_REL_AMD64_REL32 against `.rdata'

once the translation unit grows past a certain size: the code can no longer
reach the read-only data it references within the range of a 32-bit
relocation. The file is one of the largest in the test suite and had been
sitting just under that limit, so an unrelated change elsewhere in the
library is enough to tip it over. It is already the second such file --
unit-regression1.cpp was split for size before -- and windows.yml already
carries a workaround for the same limit hitting the debug sections of this
same target, where -g0 was enough because that relocation was against
`.debug_line'. This one is against `.rdata', which no compiler flag avoids.

Move the second half of the regression tests, and the helper types only they
use, into unit-regression3.cpp. The sections are independent -- every
statement in "regression tests 2" was already inside a SECTION -- so they
move unchanged, and the counts confirm nothing was lost: 168 assertions
before the split, 50 plus 118 after.

The result is that both files are comfortably smaller than the one that used
to link, measured with clang at -O1 for C++20:

                        read-only data        text     object
    before                      58,233   1,287,764  3,158,120
    unit-regression2.cpp        48,161   1,012,988  2,522,296
    unit-regression3.cpp        41,710     772,704  1,878,880

No CMake change is needed: tests/CMakeLists.txt globs src/unit-*.cpp, so the
new file is picked up and built for every standard like its siblings.

CONTRIBUTING.md pointed contributors at unit-regression2.cpp for new bug
tests; it now points at the smaller file and says why the two exist, so the
split does not quietly undo itself.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2026-09-11 08:34:42 +02:00
Niels Lohmann c9f1d2d646 Broaden JSON_HEDLEY_WARN_UNUSED_RESULT coverage to pure query functions (#5477)
* Broaden JSON_HEDLEY_WARN_UNUSED_RESULT coverage to pure query functions

Add JSON_HEDLEY_WARN_UNUSED_RESULT to the unambiguous, const,
side-effect-free observer functions whose return value is the entire
purpose of the call:

- dump()
- type(), type_name()
- all is_* predicates (is_primitive, is_structured, is_null,
  is_boolean, is_number, is_number_integer, is_number_unsigned,
  is_number_float, is_object, is_array, is_string, is_binary,
  is_discarded)
- empty(), size(), max_size()
- count(...) (both overloads) and contains(...) (all overloads,
  including the deprecated json_pointer<BasicJsonType> overload)

This mirrors the direction the standard library has taken with
[[nodiscard]] on the analogous std::vector/std::map members, and
catches real bugs such as `j.empty();` (meant `j.clear();`) or
`j.contains(k);` with the result thrown away.

Deliberately out of scope (left for a separate, later policy
decision, per the issue): at(), value(), get*(), flatten(),
unflatten(), patch(), merge_patch(), begin()/end(), comparison
operators, erase(), and emplace().

Compiling the full test suite (tests/src/unit-*.cpp) with
-Wunused-result -Werror uncovered one real hit: a regression test in
unit-regression2.cpp called dump() purely to check it does not throw,
discarding the result. Fixed by explicitly casting to void, since the
call is intentionally result-less there.

Fixes #5410

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* Fix discarded nodiscard results across the test suite for GCC's warn_unused_result

A plain (void) cast on a call expression suppresses the C++17 [[nodiscard]]
warning but not GCC's warning for functions annotated via the GNU
__attribute__((warn_unused_result)) form -- which is what
JSON_HEDLEY_WARN_UNUSED_RESULT expands to on GCC. Several existing tests
that call a newly-annotated function (dump(), empty()) purely to check
that it throws/does not throw, discarding the result via (void), newly
warned (and failed -Werror builds) once the annotation was broadened.
Route those discards through a small ignore_return_value() helper
instead, which actually consumes the value and suppresses the warning
on both attribute forms.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* Use utils::ignore_return_value() for the issue #1445 dump() discard too

Addresses review feedback from @gregmarr on PR #5477: this call site was
still using the older "capture in a variable, then (void) it" pattern
from before this PR introduced utils::ignore_return_value(), instead of
the helper now used at every other discarded-nodiscard-result call site
this PR touches.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2026-09-09 09:50:39 +02:00
elix3r 35705d79d8 Fix update(merge_objects=true) throwing on primitive-to-object merge (#5414)
When merge_objects is true, recurse only if the existing value is an
object. Otherwise overwrite, matching the documented "all other values
are overwritten as usual" behavior.

Fixes #5402

Signed-off-by: elix3r <157088510+22elix3r@users.noreply.github.com>
2026-08-28 13:38:28 +01:00
tomatotomata 2222d386c9 fix: check CBOR tagged subtype reads (#5339) 2026-07-31 22:06:55 +02:00
Niels Lohmann fe2bcc080f Custom BinaryType direct assignment (#5266)
* Fix discussion #4209: custom BinaryType direct assignment and extraction

When a custom BinaryType is configured (other than the default std::vector<uint8_t>),
users can now:
1. Assign values of that type directly to create binary values (not arrays)
2. Extract binary values back to that type with get<>()
3. Extract arrays to that type (for backward compatibility)

Implementation:
- Add is_compatible_binary_type trait to centralize SFINAE condition
- Update to_json to accept custom BinaryType values directly
- Update from_json to handle both binary and array inputs for custom BinaryType
- Add #include <vector> with IWYU comment to from_json.hpp
- Add comprehensive tests for assignment and array extraction
- Update binary_t documentation with example

This is purely additive and invisible to the default nlohmann::json alias, which
continues to treat std::vector<uint8_t> as arrays.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* Fix CI: missing include and const-correctness

- Add #include <vector> to type_traits.hpp for the new
  is_compatible_binary_type trait's std::vector<std::uint8_t> reference
  (caught by cpplint's include-what-you-use check)
- Mark test-local json variables const where never reassigned
  (caught by clang-tidy's misc-const-correctness check)

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2026-07-11 15:09:05 +02:00
Federico Sfriso c60217e801 fix: support constructing json from C++20 range views (#4916) (#5205) 2026-07-11 09:13:04 +02:00
Niels Lohmann 6ba332c7df Migrate remaining CI jobs off custom json-ci image to official images (#5263)
* Migrate ci_icpc/ci_test_compilers_gcc_old/ci_infer off custom json-ci image

Replaces the last three consumers of ghcr.io/nlohmann/json-ci with official
images: ci_icpc now uses Intel's own intel/oneapi-hpckit:2023.2.1-devel-ubuntu22.04
(the last release with classic icc/icpc before Intel dropped it in oneAPI
2024.0), ci_test_compilers_gcc_old installs old GCCs on official ubuntu:20.04
via the same PPA/archive setup the custom image used (working around
actions/checkout's incompatibility with official gcc:4/5/6 images), and
ci_infer runs directly on ubuntu-latest, fetching Facebook's official Infer
release tarball inline instead of a maintained image. No job in
ubuntu.yml references the custom image anymore.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* Update quality-assurance compiler table for CI image migration

Reflects the ci_icpc/ci_test_compilers_gcc_old container migration: the
old-GCC jobs (4.8/4.9/5/6) now compile inside official ubuntu:20.04 rather
than the custom Focal-based json-ci image (same OS, just now attributed to
the official image), and ci_icpc now uses Intel's official
intel/oneapi-hpckit:2023.2.1-devel-ubuntu22.04, bumping the reported ICC
version from 2021.5.0 to 2021.10.0 and the OS from Ubuntu 20.04.3 to 22.04.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* Fix CI failures from the json-ci image migration

- ci_icpc: the official intel/oneapi-hpckit image has no CMake preinstalled
  (the custom image bundled one); add the missing lukka/get-cmake step.
- ci_test_compilers_gcc_old: official ubuntu:20.04 has no build tool, so
  CMake's default Unix Makefiles generator failed with "CMAKE_MAKE_PROGRAM
  is not set"; install make alongside the PPA-provided g++.
- ci_infer: Infer v1.1.0's bundled Clang frontend can't parse GCC 14's
  headers (ubuntu-latest's default toolchain), failing with parse errors in
  <bits/unicode.h>; bump to the latest release, v1.3.0, whose newer bundled
  frontend understands them (release asset also renamed upstream from
  infer-linux64-v1.1.0.tar.xz to infer-linux-x86_64-v1.3.0.tar.xz).

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* Fix ci_test_compilers_gcc_old: g++-6 missing from xenial-only archives

My inline PPA/archive replication only added the xenial main/universe
suites, but g++-6 isn't available there ("has no installation candidate").
The original custom Dockerfile also pulled from bionic main/universe and
xenial-updates main/universe; add those back to match.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* Fix ci_test_compilers_gcc_old: install git for CMake's FetchContent tests

Official ubuntu:20.04 ships no git at all (actions/checkout only succeeded
via its API-download fallback). The cmake_fetch_content(2) tests invoke
CMake's own ExternalProject_Add, which needs a real git binary and failed
with "could not find git for clone of json-populate". Install git alongside
the other build prerequisites.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* Fix ci_icpc: drop redundant setvars.sh sourcing

Unlike the old custom image, the official intel/oneapi-hpckit image already
has the oneAPI environment (icc/icpc on PATH) baked in at the container
level. Explicitly re-sourcing setvars.sh in the Build step failed with
"setvars.sh has already been run. Skipping re-execution." (exit code 3,
aborting the step under `sh -e`). Drop the now-unnecessary sourcing.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* Fix ci_icpc: exclude classic ICC from the std::span regression test

Bumping to Intel's official intel/oneapi-hpckit:2023.2.1 image (see previous
commit) also bumped classic icc/icpc from 2021.5.0 to 2021.10.0. The newer
version's __has_include(<span>) now returns true, but it still can't
actually compile std::span/std::as_bytes usage:

  error: namespace "std" has no member "as_bytes"
  error: namespace "std" has no member "span"

Exclude __ICC/__INTEL_COMPILER the same way _LIBCPP_VERSION is already
excluded for issue #4490.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* Fix amalgamation/style check: indent comment per astyle

Verified with the pinned astyle 3.4.13 (make install_astyle) locally;
no further diff.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* Fix ci_icpc: skip UTF-8 u8-literal comparison test on classic ICC

test-deserialization_cpp20 failed:

  ERROR: CHECK( j2["emoji"] == "😀" ) is NOT correct!

check_utf8() only guards against MSVC's ANSI-codepage quirk (its docstring
example), but classic ICC has an analogous problem: it doesn't encode a
narrow string literal containing non-ASCII source characters as UTF-8,
so comparing a decoded u8R"(...)" literal against a narrow literal with
the same characters fails. Extend the existing guard.

Verified with the pinned astyle 3.4.13; no diff.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2026-07-10 16:11:41 +02:00
Niels Lohmann acf076a677 Fix ADL leak of nlohmann::detail through basic_json's default base class (#5238) 2026-07-06 12:47:24 +02:00
Niels Lohmann 31dd15b258 Fix ambiguous static_cast (#5221)
* 🐛 fix ambiguous static_cast

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ✅ add regression test

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🐛 fix warning

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warning

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2026-07-02 17:13:04 +02:00
Niels Lohmann b7566c6293 Harden JSON_HAS_RANGES detection for incomplete C++20 ranges implementations (#5161)
* ✅ add regression test for #4440

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🐛 exclude breaking libraries

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🐛 exclude breaking libraries

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2026-06-30 13:33:01 +02:00
Niels Lohmann 5a05627b1f 🚨 fix warning (#5169) 2026-05-14 15:39:18 +02:00
SamareshSingh 7192763f15 Fix compile error when using nlohmann ordered_map with WITH_DEFAULT macros (#5163)
* Fix compile error when using nlohmann ordered_map with WITH_DEFAULT macros

ordered_map inherits its copy and move assignment from the underlying std vector, which requires value_type to be CopyAssignable. value_type is pair<const Key, T> whose assignment is deleted because of the const Key, so any code that assigns ordered_map (for example the ternary in NLOHMANN_JSON_FROM_WITH_DEFAULT) fails to compile (issue #5122). Provide assignment operators on ordered_map that rebuild via clear plus push_back for copy and transfer the underlying buffer for move, neither of which needs pair assignment. Also switch the map-shaped from_json overload from a transform plus inserter idiom to a range-for plus emplace, which avoids the same hazard.

Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>

* Update ordered_map.hpp

removed unwanted comments

Signed-off-by: SamareshSingh <97642706+ssam18@users.noreply.github.com>
Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>

* Update json.hpp

Signed-off-by: SamareshSingh <97642706+ssam18@users.noreply.github.com>
Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>

* Address CI issues for ordered_map fix

Declare an explicit defaulted destructor on ordered_map so the rule of five is complete (clang-tidy cppcoreguidelines-special-member-functions and hicpp-special-member-functions). Initialize the ordered_map field in the regression test struct so GCC effective-C++ stops flagging Example_5122 with a missing member initializer.

Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>

* Suppress redundant-member-init lint on Example_5122::c

The empty brace-init on c{} is required by GCC -Weffc++ to mark the member as initialized in the synthesized default constructor, but clang-tidy readability-redundant-member-init flags the same line because ordered_map already has a default constructor. The two checks pull in opposite directions, so add a targeted NOLINT to keep both happy.

Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>

* Address review: strong exception safety in copy-assign, simplify move-assign noexcept

Copy assignment now constructs a temporary copy before move-assigning the
Container subobject, preserving *this if the copy throws. Move assignment
uses std::is_nothrow_move_assignable<Container> for a cleaner noexcept
specifier, matching the style of the move constructor.

Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>

* Restore self-assignment check in copy-assign to satisfy cert-oop54-cpp

clang-tidy's cert-oop54-cpp flagged the previous revision because it could
not recognize the implicit self-safety of the copy-then-move pattern.
Restore the explicit `if (this != &other)` guard — strong exception safety
is preserved since the temporary copy is still constructed before the
move-assign of the Container subobject.

Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>

* Address review: add explicit self-assignment and move-assignment tests for ordered_map

Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>

* Address review: gate -Wself-assign-overloaded suppression on Clang version

-Wself-assign-overloaded was introduced in Clang 7. Older Clang versions fail the build with "unknown warning group" when the suppression pragma references it unconditionally. Use __has_warning inside an __clang__ branch so the suppression is only emitted on Clang versions that recognize the warning. The inner check stays inside the __clang__ guard because GCC does not provide __has_warning and would tokenize-error on the argument list.

Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>

* Address CI: drop unused gating macro to silence -Wunused-macros

The previous attempt defined JSON_TEST_5122_SUPPRESS_SELF_ASSIGN_OVERLOADED
as 0 unconditionally and then overrode it to 1 on Clang versions that recognize the warning. On those Clangs the initial define is immediately
undef'd without being read, which trips Clang's -Wunused-macros under -Weverything in the ci_test_clang job. Drop the macro and gate the
DOCTEST_CLANG_SUPPRESS_WARNING_PUSH/POP pragmas directly with __has_warning inside the existing __clang__ branch.

Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>

---------

Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>
Signed-off-by: SamareshSingh <97642706+ssam18@users.noreply.github.com>
2026-05-14 08:54:24 +02:00
SamareshSingh 62f3b41b30 fix: treat single-element brace-init as copy/move instead of wrapping in array (#5074) (#5090)
* fix: treat single-element brace-init as copy/move

When passing a json value using brace initialization with a single element
(e.g., `json j{someObj}` or `foo({someJson})`), C++ always prefers the
initializer_list constructor over the copy/move constructor. This caused
the value to be unexpectedly wrapped in a single-element array.

This bug was previously compiler-dependent (GCC wrapped, Clang did not),
but Clang 20 started matching GCC behavior, making it a universal issue.

Fix: In the initializer_list constructor, when type deduction is enabled
and the list has exactly one element, copy/move it directly instead of
creating a single-element array.

Before:
  json obj = {{"key", 1}};
  json j{obj};   // -> [{"key":1}]  (wrong: array)
  foo({obj});    // -> [{"key":1}]  (wrong: array)

After:
  json j{obj};   // -> {"key":1}   (correct: copy)
  foo({obj});    // -> {"key":1}   (correct: copy)

To explicitly create a single-element array, use json::array({value}).

Fixes the issue #5074

Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>

* fix: regenerate amalgamated single_include/nlohmann/json.hpp

- Add missing comment from include/nlohmann/json.hpp explaining the
  single-element brace-init fix (issue #5074)
- Fix extra 4-space indentation in embedded json_fwd.hpp section

Regenerated by running: make amalgamate

Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>

* Revert brace-init semantics change and fix amalgamation

The single-element brace-init change was a breaking change that cannot be accepted upstream. Reverted all related source, test, and doc changes, then regenerated single_include with correct indentation to pass the amalgamation CI check.

Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>

* Fix: add JSON_BRACE_INIT_COPY_SEMANTICS opt-in macro for issue #5074

Single-element brace initialization wrapping in an array cannot be fixed without breaking existing code. Added JSON_BRACE_INIT_COPY_SEMANTICS as an opt-in macro (default 0) so users can enable copy/move semantics for single-element brace init without affecting anyone relying on the current behavior.

Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>

* docs: add dedicated macro page and CI test target for JSON_BRACE_INIT_COPY_SEMANTICS

Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>

* fix: remove compiler-dependent assertions from #5074 regression test

Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>

* fix: use defined() guard for JSON_BRACE_INIT_COPY_SEMANTICS to satisfy -Wundef

Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>

* docs: fix section name in json_brace_init_copy_semantics.md to pass style check

Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>

* docs: move Default definition section before Notes to fix style check order

Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>

---------

Signed-off-by: Samaresh Kumar Singh <ssam3003@gmail.com>
2026-05-08 08:20:24 +02:00
Niels Lohmann e3014f162a Fix conversion to std::optional (#5052)
* 🐛 fix conversion to std::optional

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warning

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warning

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2026-01-13 17:19:34 +01:00
Niels Lohmann 515d994acb 📄 adjust year (#5044)
Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2026-01-01 20:00:39 +01:00
Niels Lohmann 54be9b04f0 📄 update REUSE (#4960) 2025-10-23 06:56:36 +02:00
Niels Lohmann 2566828ed5 Fix CI (#4954)
* 🚨 suppress readability-redundant-parentheses

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 suppress google-runtime-float

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 suppress bugprone-throwing-static-initialization

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 suppress bugprone-throwing-static-initialization

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 suppress bugprone-throwing-static-initialization

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 suppress bugprone-throwing-static-initialization

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 suppress bugprone-throwing-static-initialization

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🗑️ do not use macos-13 image

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ use more Xcode versions

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ fix Clang build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🔨 clean up

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2025-10-22 11:14:01 +02:00
Niels Lohmann 30d27df61c Fix CI (#4871)
* 👷 fix CI

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 👷 fix CI

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 👷 fix CI

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 👷 fix CI

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 👷 fix CI

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 👷 fix CI

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 👷 fix CI

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 👷 fix CI

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 👷 fix CI

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 👷 fix CI

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 👷 fix CI

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 👷 fix CI

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 👷 fix CI

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 👷 fix CI

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 👷 fix CI

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2025-07-31 20:10:57 +02:00
Niels Lohmann cf16c5ab9f Use binary_t::value_type (#4805) 2025-06-02 06:35:27 +02:00
Niels Lohmann b19f058465 Encode infinity and NaN as float for MsgPack and CBOR (#4802)
* 🚸 encode infinity and NaN as float for MsgPack and CBOR

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 suppress warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2025-06-01 18:50:14 +02:00
Niels Lohmann 828c891427 Extend type_name() to invalid type (#4786)
* ✅ add regression test

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 💚 fix build

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 📝 add comment

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2025-05-16 18:16:47 +02:00
Niels Lohmann e02de2f971 Update to Doctest 2.4.12 (#4771)
* ⬆️ Doctest 2.4.12

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2025-05-15 19:25:27 +02:00
Niels Lohmann 6b9199382b Add missing header (#4763)
* 🐛 add missing header

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warning

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warning

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2025-04-27 18:18:57 +02:00
Niels Lohmann 88c92e605c Fix compilation failure and warnings with NVHPC (#4744)
* 🚨 fix warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ enable ranges support

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🔥 remove ci_nvhpc job

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ enable ranges support

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🔥 remove ci_nvhpc job

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 fix warning

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2025-04-16 16:09:21 +02:00
Niels Lohmann 96c1b52f1c Fix conversion to std::optional (#4742)
* ⚗️ remove JSON_USE_IMPLICIT_CONVERSIONS check for from_json(json, std::optional)

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ remove JSON_USE_IMPLICIT_CONVERSIONS check for from_json(json, std::optional)

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ remove JSON_USE_IMPLICIT_CONVERSIONS check for from_json(json, std::optional)

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ remove JSON_USE_IMPLICIT_CONVERSIONS check for from_json(json, std::optional)

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ remove JSON_USE_IMPLICIT_CONVERSIONS check for from_json(json, std::optional)

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⚗️ add C++ standard library as matrix option

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ⏪ remove inline

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2025-04-15 16:10:39 +02:00
Niels Lohmann 1705bfe914 🔖 set version to 3.12.0 (#4727)
Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2025-04-11 10:41:14 +02:00
Niels Lohmann b477d2b95e Suppress clang-analyzer-webkit.NoUncountedMemberChecker (#4701)
* 🚨 suppress clang-analyzer-webkit.NoUncountedMemberChecker

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 suppress invalid misc-const-correctness warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 📝 add Clang 20/21

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 suppress invalid misc-const-correctness warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 suppress invalid misc-const-correctness warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 suppress invalid misc-const-correctness warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 suppress invalid misc-const-correctness warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 suppress invalid misc-const-correctness warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 suppress invalid misc-const-correctness warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 suppress invalid misc-const-correctness warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 🚨 suppress invalid misc-const-correctness warnings

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2025-03-29 09:38:45 +01:00
Niels Lohmann 0b6881a95f Add regression test for #3810 (#4608)
* ✅ add regression test for #3810

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ✅ add regression test for #3810

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ✅ add regression test for #3810

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ✅ add regression test for #3810

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* ✅ add regression test for #3810

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2025-02-15 12:24:06 +01:00
Niels Lohmann f06604fce0 Bump the copyright years (#4606)
* 📄 bump the copyright years

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 📄 bump the copyright years

Signed-off-by: Niels Lohmann <mail@nlohmann.me>

* 📄 bump the copyright years

Signed-off-by: Niels Lohmann <niels.lohmann@gmail.com>

---------

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
Signed-off-by: Niels Lohmann <niels.lohmann@gmail.com>
2025-01-19 17:04:17 +01:00
Michael Valladolid bdb8d2b7b3 Serialize empty tuple into '[]' instead of null (#4594)
Signed-off-by: Michael Valladolid <mikevalladolid@gmail.com>
2025-01-18 20:34:11 +01:00
Sushrut ShringarputaleandSush Shringarputale 58f5f25968 json start/end position implementation (#4517)
* Add implementation to retrieve start and end positions of json during parse

* Add more unit tests and add start/stop parsing for arrays

* Add raw value for all types

* Add more tests and fix compiler warning

* Amalgamate

* Fix CLang GCC warnings

* Fix error in build

* Style using astyle 3.1

* Fix whitespace changes

* revert

* more whitespace reverts

* Address PR comments

* Fix failing issues

* More whitespace reverts

* Address remaining PR comments

* Address comments

* Switch to using custom base class instead of default basic_json

* Adding a basic using for a json using the new base class. Also address PR comments and fix CI failures

* Address decltype comments

* Diagnostic positions macro (#4)

Co-authored-by: Sush Shringarputale <sushring@linux.microsoft.com>

* Fix missed include deletion

* Add docs and address other PR comments (#5)

* Add docs and address other PR comments

---------

Co-authored-by: Sush Shringarputale <sushring@linux.microsoft.com>

* Address new PR comments and fix CI tests for documentation

* Update documentation based on feedback (#6)

---------

Co-authored-by: Sush Shringarputale <sushring@linux.microsoft.com>

* Address std::size_t and other comments

* Fix new CI issues

* Fix lcov

* Improve lcov case with update to handle_diagnostic_positions call for discarded values

* Fix indentation of LCOV_EXCL_STOP comments

* fix amalgamation astyle issue

---------

Co-authored-by: Sush Shringarputale <sushring@linux.microsoft.com>
2024-12-18 22:46:14 +01:00
Niels Lohmann 1b9a9d1f21 Update licenses (#4521)
* 📄 update licenses

* 📄 update licenses
2024-11-29 17:38:42 +01:00
Niels Lohmann 378e091795 Fix weak-vtables warning (#4500)
* 🔧 remove warning suppression

* 🚨 fix weak-vtables warning #4087

* 🚨 suppress -Wweak-vtables warning

* 🚨 suppress -Wweak-vtables warning

* ✅ fix test

* ✅ fix test

* ✅ fix test
2024-11-20 08:29:44 +01:00
Niels Lohmann e3ac5a64bf Add test for libstdc++ (#4495)
* 👷 add test for libstdc++

* 👷 add test for libstdc++

* 💚 add fixes from #4490

* 💚 add fixes from #4490
2024-11-17 07:35:35 +01:00
Niels Lohmann 1825117e63 Another desperate try to fix the CI (#4489)
* 🚨 fix warning

* 💚 update actions

* 🚨 fix warning

* 🚨 fix warning

* 🚨 fix warning

* 💚 update actions

* 💚 update actions

* 🚨 fix warning

* 🚨 fix warning

* 💚 update actions

* 🚨 fix warning

* 💚 update actions

* 💚 update actions

* 💚 update actions

* 🚨 fix warning

* 🚨 fix warning

* 🚨 fix warning

* 🚨 fix warning

* 💚 update actions

* 💚 update actions

* 🚨 fix warning

* 💚 update actions

* 💚 update actions

* 💚 update actions

* 💚 update actions

* 💚 update actions
2024-11-13 10:21:26 +01:00
laterlaugh 97f0bdaf9a chore: fix some typos in comments (#4345)
chore: fix some typos in comments

Signed-off-by: laterlaugh <manziwenzhai@sina.cn>
2024-04-12 15:20:18 +02:00
Niels Lohmann c35d260c2f Suppress Clang-Tidy warnings (#4276) 2024-01-28 14:04:07 +01:00
Niels Lohmann 9cca280a4d JSON for Modern C++ 3.11.3 (#4222) 2023-11-28 22:36:31 +01:00
Niels Lohmann f56c6e2e30 Update documentation for the next release (#4216) 2023-11-26 15:51:19 +01:00
Sergei Trofimovich 6cec5aefc9 custom allocators: define missing 'rebind' type (#3895) 2023-03-08 12:31:56 +01:00
Raphael Grimmandbarcode 233d233439 Fix CI issues (#3906)
Co-authored-by: barcode <barcode@example.com>
2023-01-31 19:23:37 +01:00
Niels LohmannandFlorian Albrechtskirchinger 58bd97e2b1 Add clang-tools to required tools for ci_static_analysis_clang (#3724)
* 💚 add clang-tools to required tools for ci_static_analysis_clang

* 🚨 update Clang-Tidy warning selection

* 🚨 fix Clang-Tidy warnings

* 🚨 fix Clang-Tidy warnings

* 🚨 fix Clang-Tidy warnings

* 🚨 fix Clang-Tidy warnings

* 🚨 fix Clang-Tidy warnings

* 🚨 fix Clang-Tidy warnings

* 🚨 fix Clang-Tidy warnings

* 🚨 fix Clang-Tidy warnings

* 🚨 fix Clang-Tidy warnings

* 🚨 fix Clang-Tidy warnings

* 🚨 fix Clang-Tidy warnings (#3738)

* ⏪ revert fix

* ⏪ revert fix

* 🚨 fix Clang-Tidy warnings (#3739)

Co-authored-by: Florian Albrechtskirchinger <falbrechtskirchinger@gmail.com>
2022-09-13 12:58:26 +02:00
Niels Lohmann 9d69186291 🔖 set version to 3.11.2 2022-08-12 15:04:06 +02:00
Niels Lohmann f2020da0dd 🔖 set version to 3.11.1 2022-08-01 23:27:58 +02:00
Florian Albrechtskirchinger cbaf1033be Fix global UDLs (#3646)
* Add ci_test_noglobaludls to CI

* Really default JSON_GLOBAL_UDLS to 1

* Test global UDLs

* Suppress warnings

* Clarify documentation
2022-08-01 22:42:35 +02:00
Niels Lohmann ce0e13ccea 🔖 set version to 3.11.0 2022-07-31 23:19:06 +02:00
Florian Albrechtskirchinger 9aafcbe965 Move UDLs out of the global namespace (#3605)
* Move UDLs into nlohmann::literals::json_literals namespace

* Add 'using namespace' to unit tests

* Add 'using namespace' to examples

* Add 'using namespace' to README

* Move UDL mkdocs pages out of basic_json/

* Update documentation

* Update docset index

* Add JSON_GlobalUDLs CMake option

* Add unit test

* Build examples without global UDLs

* Add CI target
2022-07-31 17:38:52 +02:00