diff options
Diffstat (limited to 'gcc/doc/invoke.texi')
| -rw-r--r-- | gcc/doc/invoke.texi | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index d51aef03469..67a67497239 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -222,7 +222,7 @@ Objective-C and Objective-C++ Dialects}. @item Warning Options @xref{Warning Options,,Options to Request or Suppress Warnings}. @gccoptlist{-fsyntax-only -pedantic -pedantic-errors @gol --w -Wextra -Wall -Waggregate-return -Wno-attributes @gol +-w -Wextra -Wall -Waggregate-return -Walways-true -Wno-attributes @gol -Wc++-compat -Wcast-align -Wcast-qual -Wchar-subscripts -Wcomment @gol -Wconversion -Wno-deprecated-declarations @gol -Wdisabled-optimization -Wno-div-by-zero -Wno-endif-labels @gol @@ -3112,6 +3112,11 @@ Warn if any functions that return structures or unions are defined or called. (In languages where you can return an array, this also elicits a warning.) +@item -Walways-true +@opindex Walways-true +Warn about comparisons which are always true such as testing if unsigned +values are greater than zero. + @item -Wno-attributes @opindex Wno-attributes @opindex Wattributes |