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[/] [openrisc/] [trunk/] [gnu-stable/] [newlib-1.18.0/] [newlib/] [libm/] [mathfp/] [s_ceil.c] - Rev 859
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/* @(#)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 */
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