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109 lines
2.3 KiB
C
109 lines
2.3 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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#ifdef TEST_KWSYS_C_TYPE_MACROS
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char* info_macros =
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# if defined(__SIZEOF_SHORT__)
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"INFO:macro[__SIZEOF_SHORT__]\n"
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# endif
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# if defined(__SIZEOF_INT__)
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"INFO:macro[__SIZEOF_INT__]\n"
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# endif
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# if defined(__SIZEOF_LONG__)
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"INFO:macro[__SIZEOF_LONG__]\n"
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# endif
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# if defined(__SIZEOF_LONG_LONG__)
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"INFO:macro[__SIZEOF_LONG_LONG__]\n"
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# endif
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# if defined(__SHORT_MAX__)
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"INFO:macro[__SHORT_MAX__]\n"
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# endif
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# if defined(__INT_MAX__)
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"INFO:macro[__INT_MAX__]\n"
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# endif
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# if defined(__LONG_MAX__)
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"INFO:macro[__LONG_MAX__]\n"
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# endif
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# if defined(__LONG_LONG_MAX__)
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"INFO:macro[__LONG_LONG_MAX__]\n"
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# endif
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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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int require = 0;
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require += info_macros[argc];
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(void)argv;
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return require;
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}
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#endif
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