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view lphobos/typeinfo1/ti_float.d @ 532:0beebf923322
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author | Tomas Lindquist Olsen <tomas.l.olsen@gmail.com> |
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date | Thu, 21 Aug 2008 15:35:39 +0200 |
parents | 373489eeaf90 |
children |
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// float module typeinfo1.ti_float; import std.gc: malloc; class TypeInfo_f : TypeInfo { char[] toString() { return "float"; } hash_t getHash(void *p) { return *cast(uint *)p; } static bool _isnan(float f) { return f !<>= 0; } static int _equals(float f1, float f2) { return f1 == f2 || (_isnan(f1) && _isnan(f2)); } static int _compare(float d1, float d2) { if (d1 !<>= d2) // if either are NaN { if (_isnan(d1)) { if (_isnan(d2)) return 0; return -1; } return 1; } return (d1 == d2) ? 0 : ((d1 < d2) ? -1 : 1); } int equals(void *p1, void *p2) { return _equals(*cast(float *)p1, *cast(float *)p2); } int compare(void *p1, void *p2) { return _compare(*cast(float *)p1, *cast(float *)p2); } size_t tsize() { return float.sizeof; } void swap(void *p1, void *p2) { float t; t = *cast(float *)p1; *cast(float *)p1 = *cast(float *)p2; *cast(float *)p2 = t; } void[] init() { return (cast(float*)malloc(float.sizeof))[0..1]; } }