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| author | Marek Polacek <polacek@redhat.com> | 2016-09-05 12:17:09 +0000 |
|---|---|---|
| committer | Marek Polacek <mpolacek@gcc.gnu.org> | 2016-09-05 12:17:09 +0000 |
| commit | 25ff5dd35471b2b20f2b2681c8ff24c0d086ec00 (patch) | |
| tree | cbe9638e9cb6159d1a15ccd556a01d2ef8a445c8 /gcc/doc | |
| parent | c5cb79681df13acc02894b4df8314c797895e2bb (diff) | |
| download | gcc-25ff5dd35471b2b20f2b2681c8ff24c0d086ec00.zip gcc-25ff5dd35471b2b20f2b2681c8ff24c0d086ec00.tar.gz gcc-25ff5dd35471b2b20f2b2681c8ff24c0d086ec00.tar.bz2 | |
re PR c/77423 (-Wlogical-not-parentheses false positive for bitwise expression with _Bool operands)
PR c/77423
* doc/invoke.texi: Update -Wlogical-not-parentheses documentation.
* c-common.c (bool_promoted_to_int_p): New function.
(expr_has_boolean_operands_p): New function.
(warn_logical_not_parentheses): Return if expr_has_boolean_operands_p.
(maybe_warn_bool_compare): Use bool_promoted_to_int_p.
* c-c++-common/Wlogical-not-parentheses-3.c: New test.
From-SVN: r239988
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 73aab7c..9ab031e 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -5476,8 +5476,8 @@ if (a < 0 && a < 0) @{ @dots{} @} @opindex Wlogical-not-parentheses @opindex Wno-logical-not-parentheses Warn about logical not used on the left hand side operand of a comparison. -This option does not warn if the RHS operand is of a boolean type. Its -purpose is to detect suspicious code like the following: +This option does not warn if the right operand is considered to be a Boolean +expression. Its purpose is to detect suspicious code like the following: @smallexample int a; @dots{} |