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view lphobos/typeinfo1/ti_float.d @ 1168:ab186e535e72
A different fix to #218 and DMD2682 that does not lead to constant folding regressions.
Fixes run/const_15, run/c/const_16_B.
The price is removing the lvalueness of struct literals. If it turns out too
much code depends on this behavior or we don't want to break with DMD, we
could keep struct literals as lvalues and instead convert struct literals used
as expression initializers into struct initializers.
author | Christian Kamm <kamm incasoftware de> |
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date | Sun, 29 Mar 2009 11:43:45 +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]; } }