Mercurial > projects > ldc
view lphobos/typeinfo1/ti_real.d @ 1083:c1e9f612e2e2
Fix for dual operand form of fistp, also make reg ST(0) explicit and fix lindquists
previous code that allowed dual operand form of fstp but dissallowed the single
operand form accidently
author | Kelly Wilson <wilsonk cpsc.ucalgary.ca> |
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date | Tue, 10 Mar 2009 06:23:26 -0600 |
parents | 2c3cd3596187 |
children |
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// real module typeinfo1.ti_real; class TypeInfo_e : TypeInfo { char[] toString() { return "real"; } hash_t getHash(void *p) { return (cast(uint *)p)[0] + (cast(uint *)p)[1] + (cast(ushort *)p)[4]; } static bool _isnan(real r) { return r !<>= 0; } static int _equals(real f1, real f2) { return f1 == f2 || (_isnan(f1) && _isnan(f2)); } static int _compare(real d1, real 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(real *)p1, *cast(real *)p2); } int compare(void *p1, void *p2) { return _compare(*cast(real *)p1, *cast(real *)p2); } size_t tsize() { return real.sizeof; } void swap(void *p1, void *p2) { real t; t = *cast(real *)p1; *cast(real *)p1 = *cast(real *)p2; *cast(real *)p2 = t; } void[] init() { static real r; return (&r)[0 .. 1]; } }