mirror of
https://github.com/Kitware/CMake.git
synced 2025-10-14 02:08:27 +08:00
c47501bcca
Code extracted from:
https://gitlab.kitware.com/utils/kwsys.git
at commit a3263389bcaab27fd62a23599d4ce9bdaa01479a (master).
Upstream Shortlog
-----------------
Brad King (7):
ce4941c9 IOStream: Drop this component of KWSys
49d04c2c hashtable: Drop this component of KWSys
a0bd892c SystemInformation: Use 'long long' unconditionally
441dd494 Drop unused checks for 'long long' and '__int64'
2b749749 Drop unused C type macros check
74daf33b Drop unused Borland and OpenWatcom preprocessor conditions
c4e8126a Drop unused CXX cstdio check
72 lines
1.5 KiB
C
72 lines
1.5 KiB
C
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing#kwsys for details. */
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/*
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Macros to define main() in a cross-platform way.
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Usage:
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int KWSYS_PLATFORM_TEST_C_MAIN()
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{
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return 0;
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}
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int KWSYS_PLATFORM_TEST_C_MAIN_ARGS(argc, argv)
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{
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(void)argc; (void)argv;
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return 0;
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}
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*/
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#if defined(__CLASSIC_C__)
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# define KWSYS_PLATFORM_TEST_C_MAIN() main()
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# define KWSYS_PLATFORM_TEST_C_MAIN_ARGS(argc, argv) \
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main(argc, argv) int argc; \
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char* argv[];
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#else
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# define KWSYS_PLATFORM_TEST_C_MAIN() main(void)
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# define KWSYS_PLATFORM_TEST_C_MAIN_ARGS(argc, argv) \
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main(int argc, char* argv[])
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#endif
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#ifdef TEST_KWSYS_C_HAS_PTRDIFF_T
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# include <stddef.h>
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int f(ptrdiff_t n)
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{
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return n > 0;
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}
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int KWSYS_PLATFORM_TEST_C_MAIN()
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{
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char* p = 0;
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ptrdiff_t d = p - p;
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(void)d;
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return f(p - p);
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}
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#endif
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#ifdef TEST_KWSYS_C_HAS_SSIZE_T
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# include <unistd.h>
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int f(ssize_t n)
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{
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return (int)n;
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}
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int KWSYS_PLATFORM_TEST_C_MAIN()
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{
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ssize_t n = 0;
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return f(n);
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}
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#endif
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#ifdef TEST_KWSYS_C_HAS_CLOCK_GETTIME_MONOTONIC
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# if defined(__APPLE__)
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# include <AvailabilityMacros.h>
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# if MAC_OS_X_VERSION_MIN_REQUIRED < 101200
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# error "clock_gettime not available on macOS < 10.12"
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# endif
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# endif
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# include <time.h>
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int KWSYS_PLATFORM_TEST_C_MAIN()
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{
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struct timespec ts;
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return clock_gettime(CLOCK_MONOTONIC, &ts);
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}
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#endif
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