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 expm1f(float x)9float expm1f(float x) 10 { 11 // Intentionally using double version of exp() here in the float version of 12 // expm1, to preserve as much accuracy as possible in the intermediate 13 // result. 14 return exp(x) - 1.0; 15 } 16