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Diffstat (limited to 'newlib/libm/common/s_round.c')
| -rw-r--r-- | newlib/libm/common/s_round.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/newlib/libm/common/s_round.c b/newlib/libm/common/s_round.c index 09f19de64..b2cc0f558 100644 --- a/newlib/libm/common/s_round.c +++ b/newlib/libm/common/s_round.c @@ -8,6 +8,38 @@ * is preserved. * ==================================================== */ +/* +FUNCTION +<<round>>, <<roundf>>--round to integer, to nearest +INDEX + round +INDEX + roundf + +ANSI_SYNOPSIS + #include <math.h> + double round(double <[x]>); + float roundf(float <[x]>); + +DESCRIPTION + The <<round>> functions round their argument to the nearest integer + value in floating-point format, rounding halfway cases away from zero, + regardless of the current rounding direction. (While the "inexact" + floating-point exception behavior is unspecified by the C standard, the + <<round>> functions are written so that "inexact" is not raised if the + result does not equal the argument, which behavior is as recommended by + IEEE 754 for its related functions.) + +RETURNS +<[x]> rounded to an integral value. + +PORTABILITY +ANSI C, POSIX + +SEEALSO +<<nearbyint>>, <<rint>> + +*/ #include "fdlibm.h" |