27 lines
836 B
C
27 lines
836 B
C
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/**
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* This file has no copyright assigned and is placed in the Public Domain.
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* This file is part of the mingw-w64 runtime package.
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* No warranty is given; refer to the file DISCLAIMER.PD within this package.
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*/
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#include <math.h>
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#include <fenv.h>
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long long llrintf (float x)
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{
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long long retval = 0ll;
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#if defined(_AMD64_) || defined(__x86_64__) || defined(_X86_) || defined(__i386__)
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__asm__ __volatile__ ("fistpll %0" : "=m" (retval) : "t" (x) : "st");
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#else
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int mode = fegetround();
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if (mode == FE_DOWNWARD)
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retval = (long long)floorf(x);
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else if (mode == FE_UPWARD)
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retval = (long long)ceilf(x);
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else if (mode == FE_TOWARDZERO)
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retval = x >= 0 ? (long long)floorf(x) : (long long)ceilf(x);
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else
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retval = x >= 0 ? (long long)floorf(x + 0.5) : (long long)ceilf(x - 0.5);
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#endif
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return retval;
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}
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