1 /* wf_fmod.c -- float version of w_fmod.c. 2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian (at) cygnus.com. 3 */ 4 5 /* 6 * ==================================================== 7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. 8 * 9 * Developed at SunPro, a Sun Microsystems, Inc. business. 10 * Permission to use, copy, modify, and distribute this 11 * software is freely granted, provided that this notice 12 * is preserved. 13 * ==================================================== 14 */ 15 16 /* 17 * wrapper fmodf(x,y) 18 */ 19 20 #include "fdlibm.h" 21 #include <errno.h> 22 23 #ifdef __STDC__ 24 float fmodf(float x, float y) /* wrapper fmodf */ 25 #else 26 float fmodf(x,y) /* wrapper fmodf */ 27 float x,y; 28 #endif 29 { 30 #ifdef _IEEE_LIBM 31 return __ieee754_fmodf(x,y); 32 #else 33 float z; 34 struct exception exc; 35 z = __ieee754_fmodf(x,y); 36 if(_LIB_VERSION == _IEEE_ ||isnan(y)||isnan(x)) return z; 37 if(y==(float)0.0) { 38 /* fmodf(x,0) */ 39 exc.type = DOMAIN; 40 exc.name = "fmodf"; 41 exc.err = 0; 42 exc.arg1 = (double)x; 43 exc.arg2 = (double)y; 44 if (_LIB_VERSION == _SVID_) 45 exc.retval = x; 46 else 47 exc.retval = 0.0/0.0; 48 if (_LIB_VERSION == _POSIX_) 49 errno = EDOM; 50 else if (!matherr(&exc)) { 51 errno = EDOM; 52 } 53 if (exc.err != 0) 54 errno = exc.err; 55 return (float)exc.retval; 56 } else 57 return z; 58 #endif 59 } 60 61 #ifdef _DOUBLE_IS_32BITS 62 63 #ifdef __STDC__ 64 double fmod(double x, double y) 65 #else 66 double fmod(x,y) 67 double x,y; 68 #endif 69 { 70 return (double) fmodf((float) x, (float) y); 71 } 72 73 #endif /* defined(_DOUBLE_IS_32BITS) */ 74
