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Diffstat (limited to 'manual/math.texi')
| -rw-r--r-- | manual/math.texi | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/manual/math.texi b/manual/math.texi index 69a0acec9b..53c2bc1a1f 100644 --- a/manual/math.texi +++ b/manual/math.texi @@ -53,6 +53,17 @@ usually wise to pick the narrowest type that can accommodate your data. Not all machines have a distinct @code{long double} type; it may be the same as @code{double}. +On some machines, @theglibc{} also provides @code{_Float@var{N}} and +@code{_Float@var{N}x} types. These types are defined in @w{ISO/IEC TS +18661-3}, which extends @w{ISO C} and defines floating-point types that +are not machine-dependent. When such a type, such as @code{_Float128}, +is supported by @theglibc{}, extra variants for most of the mathematical +functions provided for @code{double}, @code{float}, and @code{long +double} are also provided for the supported type. + +Currently, support for @code{_Float@var{N}} or @code{_Float@var{N}x} +types is not provided for any machine. + @menu * Mathematical Constants:: Precise numeric values for often-used constants. |