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Diffstat (limited to 'manual/arith.texi')
| -rw-r--r-- | manual/arith.texi | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/manual/arith.texi b/manual/arith.texi index a5c04e475f..f0f3bb4031 100644 --- a/manual/arith.texi +++ b/manual/arith.texi @@ -711,6 +711,15 @@ such as by defining @code{_GNU_SOURCE}, and then you must include @file{math.h}.) @end deftypevr +@comment math.h +@comment ISO +@deftypevr Macro float SNANF +@deftypevrx Macro double SNAN +@deftypevrx Macro {long double} SNANL +These macros, defined by TS 18661-1:2014, are constant expressions for +signaling NaNs. +@end deftypevr + @w{IEEE 754} also allows for another unusual value: negative zero. This value is produced when you divide a positive number by negative infinity, or when a negative result is smaller than the limits of |