From 8a0efa53e44919bcf5ccb1d3353618a82afdf8bc Mon Sep 17 00:00:00 2001 From: Christopher Faylor Date: Thu, 17 Feb 2000 19:39:52 +0000 Subject: import newlib-2000-02-17 snapshot --- newlib/libm/mathfp/sf_ceil.c | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 newlib/libm/mathfp/sf_ceil.c (limited to 'newlib/libm/mathfp/sf_ceil.c') diff --git a/newlib/libm/mathfp/sf_ceil.c b/newlib/libm/mathfp/sf_ceil.c new file mode 100644 index 000000000..bc8e1403b --- /dev/null +++ b/newlib/libm/mathfp/sf_ceil.c @@ -0,0 +1,42 @@ + +/* @(#)z_ceilf.c 1.0 98/08/13 */ +/***************************************************************** + * ceil + * + * Input: + * x - floating point value + * + * Output: + * Smallest integer greater than x. + * + * Description: + * This routine returns the smallest integer greater than x. + * + *****************************************************************/ + +#include "fdlibm.h" +#include "zmath.h" + +float +_DEFUN (ceilf, (float), + float x) +{ + float f, y; + + y = modff (x, &f); + + if (y == 0.0) + return (x); + else if (x > -1.0 && x < 1.0) + return (x > 0 ? 1.0 : 0.0); + else + return (x > 0 ? f + 1.0 : f); +} + +#ifdef _DOUBLE_IS_32BITS +double ceil (double x) +{ + return (double) ceilf ((float) x); +} + +#endif /* defined(_DOUBLE_IS_32BITS) */ -- cgit v1.2.3