Mercurial > hg > CbC > CbC_gcc
diff libiberty/snprintf.c @ 55:77e2b8dfacca gcc-4.4.5
update it from 4.4.3 to 4.5.0
author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
---|---|
date | Fri, 12 Feb 2010 23:39:51 +0900 |
parents | a06113de4d67 |
children | f6334be47118 |
line wrap: on
line diff
--- a/libiberty/snprintf.c Sun Feb 07 18:28:00 2010 +0900 +++ b/libiberty/snprintf.c Fri Feb 12 23:39:51 2010 +0900 @@ -27,13 +27,15 @@ @deftypefn Supplemental int snprintf (char *@var{buf}, size_t @var{n}, const char *@var{format}, ...) -This function is similar to sprintf, but it will print at most @var{n} -characters. On error the return value is -1, otherwise it returns the -number of characters that would have been printed had @var{n} been -sufficiently large, regardless of the actual value of @var{n}. Note -some pre-C99 system libraries do not implement this correctly so users -cannot generally rely on the return value if the system version of -this function is used. +This function is similar to @code{sprintf}, but it will write to +@var{buf} at most @code{@var{n}-1} bytes of text, followed by a +terminating null byte, for a total of @var{n} bytes. +On error the return value is -1, otherwise it returns the number of +bytes, not including the terminating null byte, that would have been +written had @var{n} been sufficiently large, regardless of the actual +value of @var{n}. Note some pre-C99 system libraries do not implement +this correctly so users cannot generally rely on the return value if +the system version of this function is used. @end deftypefn