diff options
Diffstat (limited to 'gcc/doc/invoke.texi')
| -rw-r--r-- | gcc/doc/invoke.texi | 25 |
1 files changed, 1 insertions, 24 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index f7d3bc8..5022c4a 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -259,7 +259,7 @@ Objective-C and Objective-C++ Dialects}. -Wstrict-overflow -Wstrict-overflow=@var{n} @gol -Wswitch -Wswitch-default -Wswitch-enum -Wsync-nand @gol -Wsystem-headers -Wtrigraphs -Wtype-limits -Wundef -Wuninitialized @gol --Wunknown-pragmas -Wno-pragmas -Wunreachable-code @gol +-Wunknown-pragmas -Wno-pragmas @gol -Wunsuffixed-float-constants -Wunused -Wunused-function @gol -Wunused-label -Wunused-parameter -Wno-unused-result -Wunused-value -Wunused-variable @gol -Wvariadic-macros -Wvla @gol @@ -4192,29 +4192,6 @@ cases where multiple declaration is valid and changes nothing. @opindex Wno-nested-externs Warn if an @code{extern} declaration is encountered within a function. -@item -Wunreachable-code -@opindex Wunreachable-code -@opindex Wno-unreachable-code -Warn if the compiler detects that code will never be executed. - -This option is intended to warn when the compiler detects that at -least a whole line of source code will never be executed, because -some condition is never satisfied or because it is after a -procedure that never returns. - -It is possible for this option to produce a warning even though there -are circumstances under which part of the affected line can be executed, -so care should be taken when removing apparently-unreachable code. - -For instance, when a function is inlined, a warning may mean that the -line is unreachable in only one inlined copy of the function. - -This option is not made part of @option{-Wall} because in a debugging -version of a program there is often substantial code which checks -correct functioning of the program and is, hopefully, unreachable -because the program does work. Another common use of unreachable -code is to provide behavior which is selectable at compile-time. - @item -Winline @opindex Winline @opindex Wno-inline |