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author | PikalaxALT <pikalaxalt@gmail.com> | 2018-01-03 17:39:24 -0700 |
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committer | PikalaxALT <pikalaxalt@gmail.com> | 2018-01-03 17:39:24 -0700 |
commit | a6c1ed4716cf02626ea035beb6dd4a921642ba80 (patch) | |
tree | ef582c1b52819e27bdd16097ec03b69799d04ede /newlib/libm/math/wf_exp.c | |
parent | f6c9a624fa8a6878a7fb2b02f55e4990a20feb59 (diff) |
Use libc from agbcc instead of standalone newlib\nYou must have AGBCC commit 80d029caec189587f8b9294b6c8a5a489b8f5f88 in order to compile pmd_red.gbalibc
Diffstat (limited to 'newlib/libm/math/wf_exp.c')
-rw-r--r-- | newlib/libm/math/wf_exp.c | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/newlib/libm/math/wf_exp.c b/newlib/libm/math/wf_exp.c deleted file mode 100644 index 70f4459..0000000 --- a/newlib/libm/math/wf_exp.c +++ /dev/null @@ -1,103 +0,0 @@ -/* wf_exp.c -- float version of w_exp.c. - * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. - */ - -/* - * ==================================================== - * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. - * - * Developed at SunPro, a Sun Microsystems, Inc. business. - * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice - * is preserved. - * ==================================================== - */ - -/* - * wrapper expf(x) - */ - -#include "fdlibm.h" -#include <errno.h> - -#ifdef __STDC__ -static const float -#else -static float -#endif -o_threshold= 8.8721679688e+01, /* 0x42b17180 */ -u_threshold= -1.0397208405e+02; /* 0xc2cff1b5 */ - -#ifdef __STDC__ - float expf(float x) /* wrapper expf */ -#else - float expf(x) /* wrapper expf */ - float x; -#endif -{ -#ifdef _IEEE_LIBM - return __ieee754_expf(x); -#else - float z; - struct exception exc; - z = __ieee754_expf(x); - if(_LIB_VERSION == _IEEE_) return z; - if(finitef(x)) { - if(x>o_threshold) { - /* expf(finite) overflow */ -#ifndef HUGE_VAL -#define HUGE_VAL inf - double inf = 0.0; - - SET_HIGH_WORD(inf,0x7ff00000); /* set inf to infinite */ -#endif - exc.type = OVERFLOW; - exc.name = "expf"; - exc.err = 0; - exc.arg1 = exc.arg2 = (double)x; - if (_LIB_VERSION == _SVID_) - exc.retval = HUGE; - else - exc.retval = HUGE_VAL; - if (_LIB_VERSION == _POSIX_) - errno = ERANGE; - else if (!matherr(&exc)) { - errno = ERANGE; - } - if (exc.err != 0) - errno = exc.err; - return exc.retval; - } else if(x<u_threshold) { - /* expf(finite) underflow */ - exc.type = UNDERFLOW; - exc.name = "expf"; - exc.err = 0; - exc.arg1 = exc.arg2 = (double)x; - exc.retval = 0.0; - if (_LIB_VERSION == _POSIX_) - errno = ERANGE; - else if (!matherr(&exc)) { - errno = ERANGE; - } - if (exc.err != 0) - errno = exc.err; - return exc.retval; - } - } - return z; -#endif -} - -#ifdef _DOUBLE_IS_32BITS - -#ifdef __STDC__ - double exp(double x) -#else - double exp(x) - double x; -#endif -{ - return (double) expf((float) x); -} - -#endif /* defined(_DOUBLE_IS_32BITS) */ |