diff options
Diffstat (limited to 'libm/e_log10.c')
| -rw-r--r-- | libm/e_log10.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/libm/e_log10.c b/libm/e_log10.c index 6cf3ea4ee..ff2241e56 100644 --- a/libm/e_log10.c +++ b/libm/e_log10.c @@ -78,3 +78,24 @@ double attribute_hidden __ieee754_log10(double x) z = y*log10_2lo + ivln10*__ieee754_log(x); return z+y*log10_2hi; } + +/* + * wrapper log10(X) + */ +#ifndef _IEEE_LIBM +double log10(double x) +{ + double z = __ieee754_log10(x); + if (_LIB_VERSION == _IEEE_ || isnan(x)) + return z; + if (x <= 0.0) { + if(x == 0.0) + return __kernel_standard(x, x, 18); /* log10(0) */ + return __kernel_standard(x, x, 19); /* log10(x<0) */ + } + return z; +} +#else +strong_alias(__ieee754_log10, log10) +#endif +libm_hidden_def(log10) |