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| author | Ulrich Drepper <drepper@redhat.com> | 1998-06-09 18:24:13 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1998-06-09 18:24:13 +0000 |
| commit | 4bbac92a0a58c00a8c8c99241cde3d4a3ddb3f5c (patch) | |
| tree | 4557a7d8b1e9402e5ad426280f3bcdd33a68b742 /sysdeps/libm-ieee754/w_exp10f.c | |
| parent | 69f234e8ff029cdd0ee7f91df7bcd006bbcab42f (diff) | |
| download | glibc-4bbac92a0a58c00a8c8c99241cde3d4a3ddb3f5c.tar glibc-4bbac92a0a58c00a8c8c99241cde3d4a3ddb3f5c.tar.gz glibc-4bbac92a0a58c00a8c8c99241cde3d4a3ddb3f5c.tar.bz2 glibc-4bbac92a0a58c00a8c8c99241cde3d4a3ddb3f5c.zip | |
Update.
1998-06-09 18:16 Ulrich Drepper <drepper@cygnus.com>
* math/Makefile (libm-calls): Add w_exp10 and e_exp10.
* math/libm.map: Add exp10{,f,l} and pow10{,f,l}.
* math/math_private.h: Add prototypes for __ieee754_exp10{,f,l}.
* math/bits/mathcalls.h: Add definitions for exp10 and pow10
prototypes.
* sysdeps/libm-i387/e_exp10.S: New file.
* sysdeps/libm-i387/e_exp10f.S: New file.
* sysdeps/libm-i387/e_exp10l.S: New file.
* sysdeps/libm-ieee754/e_exp10.c: New file.
* sysdeps/libm-ieee754/e_exp10f.c: New file.
* sysdeps/libm-ieee754/e_exp10l.c: New file.
* sysdeps/libm-ieee754/w_exp10.c: New file.
* sysdeps/libm-ieee754/w_exp10f.c: New file.
* sysdeps/libm-ieee754/w_exp10l.c: New file.
* sysdeps/libm-ieee754/k_standard.c: Add exception code for exp10.
1998-05-25 22:18 H.J. Lu <hjl@gnu.org>
* sysdeps/unix/sysv/linux/i386/Makefile (sysdep_headers): Add
sys/elf.h and sys/reg.h.
* sysdeps/unix/sysv/linux/i386/sys/elf.h: New file.
* sysdeps/unix/sysv/linux/i386/sys/reg.h: New file.
* sysdeps/unix/sysv/linux/i386/sys/procfs.h: New file.
* sysdeps/unix/sysv/linux/i386/sys/user.h: New file.
* sysdeps/unix/sysv/linux/sys/ptrace.h (PTRACE_GETREGS,
PTRACE_SETREGS, PTRACE_GETFPREGS, PTRACE_SETFPREGS): Added.
Diffstat (limited to 'sysdeps/libm-ieee754/w_exp10f.c')
| -rw-r--r-- | sysdeps/libm-ieee754/w_exp10f.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/sysdeps/libm-ieee754/w_exp10f.c b/sysdeps/libm-ieee754/w_exp10f.c new file mode 100644 index 0000000000..f78be7973b --- /dev/null +++ b/sysdeps/libm-ieee754/w_exp10f.c @@ -0,0 +1,57 @@ +/* w_exp10f.c -- float version of w_exp10.c. + * Conversion to exp10 by Ulrich Drepper <drepper@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 expf10(x) + */ + +#include "math.h" +#include "math_private.h" + +#ifdef __STDC__ +static const float +#else +static float +#endif +o_threshold= 3.853183944498959298709e+01, +u_threshold= -4.515449934959717928174e+01; + +#ifdef __STDC__ + float __exp10f(float x) /* wrapper exp10f */ +#else + float __exp10f(x) /* wrapper exp10f */ + float x; +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_exp10f(x); +#else + float z; + z = __ieee754_exp10f(x); + if(_LIB_VERSION == _IEEE_) return z; + if(__finitef(x)) { + if(x>o_threshold) + /* exp overflow */ + return (float)__kernel_standard((double)x,(double)x,146); + else if(x<u_threshold) + /* exp underflow */ + return (float)__kernel_standard((double)x,(double)x,147); + } + return z; +#endif +} +weak_alias (__exp10f, exp10f) +strong_alias (__exp10f, __pow10f) +weak_alias (__pow10f, pow10f) |