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//===--- std_size_t.cc - test input file for iwyu -------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// This tests a little quirk with the mappings for the new <cstd...> headers.
// size_t is such a commonly-used type that it deserves a dedicated test to
// demonstrate how this behaves in general. Note how the use of 'printf' is
// attributed to <cstdio> and <stdio.h> is removed. This happens because
// std::size_t is mapped to <cstdio> before 'printf' is seen and already-needed
// includes take precedence if a symbol is available from multiple sources.
//
// (Note that if 'printf' was seen before std::size_t, <stdio.h> would still be
// required.)
#include <cstdio>
#include <stdio.h>
std::size_t f() {
const std::size_t x = 100;
printf("%zu\n", x);
return sizeof(int);
}
/**** IWYU_SUMMARY
tests/cxx/std_size_t.cc should add these lines:
tests/cxx/std_size_t.cc should remove these lines:
- #include <stdio.h> // lines XX-XX
The full include-list for tests/cxx/std_size_t.cc:
#include <cstdio> // for printf, size_t
***** IWYU_SUMMARY */
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