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Diffstat (limited to 'manual/stdio.texi')
| -rw-r--r-- | manual/stdio.texi | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/manual/stdio.texi b/manual/stdio.texi index 5ebc5c1781..c666f5e7db 100644 --- a/manual/stdio.texi +++ b/manual/stdio.texi @@ -2438,6 +2438,17 @@ Specifies that the argument is of type @code{double *}. Specifies that the argument is of type @code{long double *}. @end table +For all the above number parsing formats there is an additional optional +flag @samp{'}. When this flag is given the @code{scanf} function +expects the number represented in the input string to be formatted +according to the grouping rules of the currently selected locale +(@pxref{General Numeric}). + +If the @code{"C"} or @code{"POSIX"} locale is selected there is no +difference. But for a locale which specifies values for the appropriate +fields in the locale the input must have the correct form in the input. +Otherwise the longest prefix with a correct form is processed. + @node String Input Conversions @subsection String Input Conversions |