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Bug #43414 Parenthesis (and other) warnings compiling MySQL

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with gcc 4.3.2
      
This patch fixes a number of GCC warnings about variables used
before initialized. A new macro UNINIT_VAR() is introduced for
use in the variable declaration, and LINT_INIT() usage will be
gradually deprecated. (A workaround is used for g++, pending a
patch for a g++ bug.)
      
GCC warnings for unused results (attribute warn_unused_result)
for a number of system calls (present at least in later
Ubuntus, where the usual void cast trick doesn't work) are
also fixed.
This commit is contained in:
Staale Smedseng
2009-08-28 17:51:31 +02:00
parent 95d185693d
commit 2217de2513
51 changed files with 142 additions and 191 deletions
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6
regex/regcomp.c
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@@ -213,11 +213,11 @@ register struct parse *p;
int stop; /* character this ERE should end at */
{
register char c;
register sopno prevback;
register sopno prevfwd;
register sopno UNINIT_VAR(prevback);
register sopno UNINIT_VAR(prevfwd);
register sopno conc;
register int first = 1; /* is this the first alternative? */
LINT_INIT(prevback); LINT_INIT(prevfwd);
for (;;) {
/* do a bunch of concatenated expressions */
conc = HERE();