From f95a4a932476be2ba99e2fd081e8d2bc6ea12813 Mon Sep 17 00:00:00 2001 From: PikalaxALT Date: Fri, 15 Dec 2017 09:38:53 -0500 Subject: Import newlib and create makefile --- newlib/libm/mathfp/sf_floor.c | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 newlib/libm/mathfp/sf_floor.c (limited to 'newlib/libm/mathfp/sf_floor.c') diff --git a/newlib/libm/mathfp/sf_floor.c b/newlib/libm/mathfp/sf_floor.c new file mode 100644 index 0000000..1e0fb9e --- /dev/null +++ b/newlib/libm/mathfp/sf_floor.c @@ -0,0 +1,43 @@ + +/* @(#)z_floorf.c 1.0 98/08/13 */ +/***************************************************************** + * floor + * + * Input: + * x - floating point value + * + * Output: + * Smallest integer less than x. + * + * Description: + * This routine returns the smallest integer less than x. + * + *****************************************************************/ + +#include "fdlibm.h" +#include "zmath.h" + +float +_DEFUN (floorf, (float), + float x) +{ + float f, y; + + if (x > -1.0 && x < 1.0) + return (x >= 0 ? 0 : -1.0); + + y = modff (x, &f); + + if (y == 0.0) + return (x); + + return (x >= 0 ? f : f - 1.0); +} + +#ifdef _DOUBLE_IS_32BITS +double floor (double x) +{ + return (double) floorf ((float) x); +} + +#endif /* defined(_DOUBLE_IS_32BITS) */ -- cgit v1.2.3