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Diffstat (limited to 'man3/copysign.3')
| -rw-r--r-- | man3/copysign.3 | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/man3/copysign.3 b/man3/copysign.3 index 606cfccbd5..1282cf112e 100644 --- a/man3/copysign.3 +++ b/man3/copysign.3 @@ -81,14 +81,15 @@ T} Thread safety MT-Safe .hy .ad .sp 1 +.SH VERSIONS +On architectures where the floating-point formats are not IEEE 754 compliant, +these functions may treat a negative zero as positive. .SH STANDARDS -C99, POSIX.1-2001, POSIX.1-2008. -.\" 4.3BSD. +C11, POSIX.1-2008. +.PP This function is defined in IEC 559 (and the appendix with recommended functions in IEEE 754/IEEE 854). -.SH NOTES -On architectures where the floating-point formats are not IEEE 754 compliant, -these -functions may treat a negative zero as positive. +.SH HISTORY +C99, POSIX.1-2001, 4.3BSD. .SH SEE ALSO .BR signbit (3) |