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187b68b502
Supported by MSVC 2005, MinGW-w64, 64-bit glibc, and 64-bit Mac OS X. glibc is working on adding 64-bit time_t for 32-bit software. Support for that has been added using -D_TIME_BITS=64. 32-bit Mac OS X doesn't, and won't, support 64-bit time_t. References: - https://lwn.net/Articles/715242/ - https://sourceware.org/glibc/wiki/Y2038ProofnessDesign
18 lines
461 B
C
18 lines
461 B
C
/**
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* 64-bit time_t test code.
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* Reference: https://github.com/Benjamin-Dobell/Heimdall/blob/master/cmake/LargeFiles.c
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*/
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#include <stdint.h>
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#include <time.h>
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/** static_assert() macro copied from c++11-compat.h **/
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#define static_assert(expr, msg) switch (0) { case 0: case (expr): ; }
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int main(int argc, char *argv[])
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{
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static_assert(sizeof(time_t) == sizeof(int64_t), "time_t is the wrong size");
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int64_t tm64;
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time_t tm = time(&tm64);
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return 0;
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} |