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66360675cf
Allow Include What You Use to remove unnecessary includes and only include what is necessary. This helps with reducing compilation times and makes it easier to visualise which dependencies are actually required. Work on https://github.com/neovim/neovim/issues/549, but doesn't close it since this only works fully for .c files and not headers.
44 lines
802 B
C
44 lines
802 B
C
// This is an open source non-commercial project. Dear PVS-Studio, please check
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// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
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// uncrustify:off
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#include <math.h>
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// uncrustify:on
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#include <stdint.h>
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#include <string.h>
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#include "nvim/math.h"
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#ifdef INCLUDE_GENERATED_DECLARATIONS
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# include "math.c.generated.h" // IWYU pragma: export
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#endif
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int xfpclassify(double d)
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{
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uint64_t m;
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int e;
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memcpy(&m, &d, sizeof(m));
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e = 0x7ff & (m >> 52);
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m = 0xfffffffffffffULL & m;
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switch (e) {
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default:
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return FP_NORMAL;
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case 0x000:
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return m ? FP_SUBNORMAL : FP_ZERO;
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case 0x7ff:
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return m ? FP_NAN : FP_INFINITE;
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}
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}
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int xisinf(double d)
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{
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return FP_INFINITE == xfpclassify(d);
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}
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int xisnan(double d)
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{
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return FP_NAN == xfpclassify(d);
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}
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