27f3476f33
Closes: #1447 [via git-merge-pr] Signed-off-by: Jürgen Buchmüller <pullmoll@t-online.de>
152 lines
3.7 KiB
Diff
152 lines
3.7 KiB
Diff
--- druntime/src/core/stdc/math.d 2018-03-04 08:20:53.000000000 +0100
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+++ - 2018-08-03 22:10:15.242825116 +0200
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@@ -232,8 +232,148 @@
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int isunordered(double x, double y);
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int isunordered(real x, real y);
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}
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+version( CRuntime_Glibc )
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+{
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+ enum
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+ {
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+ ///
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+ FP_NAN,
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+ ///
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+ FP_INFINITE,
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+ ///
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+ FP_ZERO,
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+ ///
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+ FP_SUBNORMAL,
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+ ///
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+ FP_NORMAL,
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+ }
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+
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+ enum
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+ {
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+ ///
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+ FP_FAST_FMA = 0,
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+ ///
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+ FP_FAST_FMAF = 0,
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+ ///
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+ FP_FAST_FMAL = 0,
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+ }
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+
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+ int __fpclassifyf(float x);
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+ int __fpclassify(double x);
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+ int __fpclassifyl(real x);
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+
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+ //int __finitef(float x);
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+ //int __finite(double x);
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+ //int __finitel(real x);
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-version( CRuntime_DigitalMars )
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+ //int __isinff(float x);
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+ //int __isinf(double x);
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+ //int __isinfl(real x);
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+
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+ //int __isnanf(float x);
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+ //int __isnan(double x);
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+ //int __isnanl(real x);
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+
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+ int __signbitf(float x);
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+ int __signbit(double x);
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+ int __signbitl(real x);
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+
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+ extern (D)
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+ {
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+ //int fpclassify(real-floating x);
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+ ///
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+ int fpclassify(float x) { return __fpclassifyf(x); }
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+ ///
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+ int fpclassify(double x) { return __fpclassify(x); }
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+ ///
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+ int fpclassify(real x)
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+{
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+ return (real.sizeof == double.sizeof)
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+ ? __fpclassify(x)
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+ : __fpclassifyl(x);
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+ }
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+ private uint __FLOAT_BITS(float __f)
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+ {
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+ union __u_t {
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+ float __f;
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+ uint __i;
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+ }
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+ __u_t __u;
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+ __u.__f = __f;
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+ return __u.__i;
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+ }
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+ private ulong __DOUBLE_BITS(double __f)
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+ {
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+ union __u_t {
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+ double __f;
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+ ulong __i;
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+ }
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+ __u_t __u;
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+ __u.__f = __f;
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+ return __u.__i;
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+ }
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+ //int isfinite(real-floating x);
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+ ///
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+ int isfinite(float x) { return (__FLOAT_BITS(x) & 0x7fffffff) < 0x7f800000; }
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+ ///
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+ int isfinite(double x) { return (__DOUBLE_BITS(x) & -1UL>>1) < 0x7ffUL<<52; }
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+ ///
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+ int isfinite(real x)
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+ {
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+ return (real.sizeof == double.sizeof)
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+ ? isfinite(cast(double)x)
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+ : __fpclassifyl(x) > FP_INFINITE;
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+ }
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+
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+ //int isinf(real-floating x);
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+ ///
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+ int isinf(float x) { return (__FLOAT_BITS(x) & 0x7fffffff) == 0x7f800000; }
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+ ///
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+ int isinf(double x) { return (__DOUBLE_BITS(x) & -1UL>>1) == 0x7ffUL<<52; }
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+ ///
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+ int isinf(real x)
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+ {
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+ return (real.sizeof == double.sizeof)
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+ ? isinf(cast(double)x)
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+ : __fpclassifyl(x) == FP_INFINITE;
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+ }
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+
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+ //int isnan(real-floating x);
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+ ///
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+ int isnan(float x) { return (__FLOAT_BITS(x) & 0x7fffffff) > 0x7f800000; }
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+ ///
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+ int isnan(double x) { return (__DOUBLE_BITS(x) & -1UL>>1) > 0x7ffUL<<52; }
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+ ///
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+ int isnan(real x)
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+ {
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+ return (real.sizeof == double.sizeof)
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+ ? isnan(cast(double)x)
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+ : __fpclassifyl(x) == FP_NAN;
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+ }
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+
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+ //int isnormal(real-floating x);
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+ ///
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+ int isnormal(float x) { return fpclassify(x) == FP_NORMAL; }
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+ ///
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+ int isnormal(double x) { return fpclassify(x) == FP_NORMAL; }
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+ ///
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+ int isnormal(real x) { return fpclassify(x) == FP_NORMAL; }
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+
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+ //int signbit(real-floating x);
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+ ///
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+ int signbit(float x) { return __signbitf(x); }
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+ ///
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+ int signbit(double x) { return __signbit(x); }
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+ ///
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+ int signbit(real x)
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+ {
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+ return (real.sizeof == double.sizeof)
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+ ? __signbit(x)
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+ : __signbitl(x);
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+ }
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+ }
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+}
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+else version( CRuntime_DigitalMars )
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{
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enum
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{
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