/* @(#)z_logf.c 1.0 98/08/13 */ /****************************************************************** * Logarithm * * Input: * x - floating point value * * Output: * natural logarithm of x * * Description: * This routine returns the natural logarithm of x. * *****************************************************************/ #include "fdlibm.h" #include "zmath.h" float logf (float x) { return (logarithmf (x, 0)); } #ifdef _DOUBLE_IS_32BITS double log (double x) { return (double) logf ((float) x); } #endif /* defined(_DOUBLE_IS_32BITS) */