diff options
| -rw-r--r-- | doc/mpfr.texi | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/doc/mpfr.texi b/doc/mpfr.texi index e28e73ce9..b4574c55e 100644 --- a/doc/mpfr.texi +++ b/doc/mpfr.texi @@ -2456,7 +2456,7 @@ the control of the template string @var{template}, and print it in @var{buf}. If @var{n} is zero, nothing is written and @var{buf} may be a null pointer, otherwise, the @var{n}@minus{}1 first characters are written in @var{buf} and the @var{n}-th is a null character. -Return the number of characters that would have been written had @var{n} be +Return the number of characters that would have been written had @var{n} been sufficiently large, @emph{not counting} the terminating null character, or a negative value if an error occurred. @c If the number of characters produced by the @@ -2472,7 +2472,8 @@ Write their output as a null terminated string in a block of memory allocated using the current allocation function. A pointer to the block is stored in @var{str}. The block of memory must be freed using @code{mpfr_free_str}. The return value is the number of characters written in the string, excluding -the null-terminator, or a negative value if an error occurred. +the null-terminator, or a negative value if an error occurred, in which case +the contents of @var{str} are undefined. @c If the number of @c characters produced by the optional arguments under the control of the @c template string @var{template} appears to exceed the maximum limit for an |