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carbon-lang/executable_semantics/testdata/generic_function/swap.carbon
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2021-11-02 14:53:18 -07:00

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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// RUN: executable_semantics %s 2>&1 | \
// RUN: FileCheck --match-full-lines --allow-unused-prefixes=false %s
// RUN: executable_semantics --trace %s 2>&1 | \
// RUN: FileCheck --match-full-lines --allow-unused-prefixes %s
// AUTOUPDATE: executable_semantics %s
// CHECK: result: 0
package ExecutableSemanticsTest api;
fn swap[T:! Type, U:! Type](tuple: (T, U)) -> (U, T) {
return (tuple[1], tuple[0]);
}
fn Main() -> i32 {
return swap((0, true))[1];
}