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Diffstat (limited to 'newlib/libm/common/s_lround.c')
| -rw-r--r-- | newlib/libm/common/s_lround.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/newlib/libm/common/s_lround.c b/newlib/libm/common/s_lround.c index 7bd249f9c..b892a743c 100644 --- a/newlib/libm/common/s_lround.c +++ b/newlib/libm/common/s_lround.c @@ -8,6 +8,44 @@ * is preserved. * ==================================================== */ +/* +FUNCTION +<<lround>>, <<lroundf>>, <<llround>>, <<llroundf>>--round to integer, to nearest +INDEX + lround +INDEX + lroundf +INDEX + llround +INDEX + llroundf + +ANSI_SYNOPSIS + #include <math.h> + long int lround(double <[x]>); + long int lroundf(float <[x]>); + long long int llround(double <[x]>); + long long int llroundf(float <[x]>); + +DESCRIPTION + The <<lround>> and <<llround>> functions round their argument to the + nearest integer value, rounding halfway cases away from zero, regardless + of the current rounding direction. If the rounded value is outside the + range of the return type, the numeric result is unspecified (depending + upon the floating-point implementation, not the library). A range + error may occur if the magnitude of x is too large. + +RETURNS +<[x]> rounded to an integral value as an integer. + +SEEALSO +See the <<round>> functions for the return being the same floating-point type +as the argument. <<lrint>>, <<llrint>>. + +PORTABILITY +ANSI C, POSIX + +*/ #include "fdlibm.h" |