diff options
author | Christopher Faylor <me@cgf.cx> | 2000-02-17 22:39:52 +0300 |
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committer | Christopher Faylor <me@cgf.cx> | 2000-02-17 22:39:52 +0300 |
commit | 8a0efa53e44919bcf5ccb1d3353618a82afdf8bc (patch) | |
tree | 68c3dbf3f2c6fd5d49777def9914d77b5cd4589d /newlib/libm/mathfp/s_ceil.c | |
parent | 1fd5e000ace55b323124c7e556a7a864b972a5c4 (diff) |
import newlib-2000-02-17 snapshot
Diffstat (limited to 'newlib/libm/mathfp/s_ceil.c')
-rw-r--r-- | newlib/libm/mathfp/s_ceil.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/newlib/libm/mathfp/s_ceil.c b/newlib/libm/mathfp/s_ceil.c new file mode 100644 index 000000000..c6ecbe323 --- /dev/null +++ b/newlib/libm/mathfp/s_ceil.c @@ -0,0 +1,38 @@ + +/* @(#)z_ceil.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" + +#ifndef _DOUBLE_IS_32BITS + +double +_DEFUN (ceil, (double), + double x) +{ + double f, y; + + y = modf (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); +} + +#endif /* _DOUBLE_IS_32BITS */ |