diff options
Diffstat (limited to 'gcc/doc/invoke.texi')
| -rw-r--r-- | gcc/doc/invoke.texi | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 51bf19d..2b55a1c 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -6188,6 +6188,7 @@ that have their own flag: -Wimplicit-int @r{(C and Objective-C only)} -Wint-conversion @r{(C and Objective-C only)} -Wnarrowing @r{(C++)} +-Wreturn-mismatch @r{(C and Objective-C only)} } The @option{-fpermissive} option is the default for historic C language @@ -7390,7 +7391,10 @@ Attempting to use the return value of a non-@code{void} function other than @code{main} that flows off the end by reaching the closing curly brace that terminates the function is undefined. -This warning is specific to C and enabled by default. +This warning is specific to C and enabled by default. In C99 and later +language dialects, it is treated as an error. It can be downgraded +to a warning using @option{-fpermissive} (along with other warnings), +or for just this warning, with @option{-Wno-error=return-mismatch}. @opindex Wreturn-type @opindex Wno-return-type |