1 /** 2 * This file has no copyright assigned and is placed in the Public Domain. 3 * This file is part of the mingw-w64 runtime package. 4 * No warranty is given; refer to the file DISCLAIMER.PD within this package. 5 */ 6 7 #include <math.h> 8 log1pf(float x)9float log1pf(float x) 10 { 11 // Intentionally using double version of log() here in the float version of 12 // log1p, to preserve as much accuracy as possible in the intermediate 13 // parameter. 14 return log(x + 1.0); 15 } 16