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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [libm/] [mathfp/] [sf_floor.c] - Rev 179
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/* @(#)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) */
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