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Diffstat (limited to 'manual/stdio.texi')
| -rw-r--r-- | manual/stdio.texi | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/manual/stdio.texi b/manual/stdio.texi index fd7ed0cedc..1d235be68d 100644 --- a/manual/stdio.texi +++ b/manual/stdio.texi @@ -2108,7 +2108,10 @@ If the value to be printed represents infinity or a NaN, the output is @w{[@code{-}]@code{inf}} or @code{nan} respectively if the conversion specifier is @samp{%a}, @samp{%e}, @samp{%f}, or @samp{%g} and it is @w{[@code{-}]@code{INF}} or @code{NAN} respectively if the conversion is -@samp{%A}, @samp{%E}, or @samp{%G}. +@samp{%A}, @samp{%E}, or @samp{%G}. On some implementations, a NaN +may result in longer output with information about the payload of the +NaN; ISO C2X defines a macro @code{_PRINTF_NAN_LEN_MAX} giving the +maximum length of such output. The following flags can be used to modify the behavior: |