Package: bison
Version: 1:2.1-0.2
Severity: minor
Tags: patch
When creating a c++ parser with the option %skeleton "lalr1.cc" and
compiling the generated parser with -Wall both g++ 4.0 and 3.3 produces the
warning
In member function virtual int yy::MyParser::parse()':
warning: 'yyilooka' may be used uninitialized in this function
This is probably a problem with g++ not being able to detect that it's
actually initialized in a if-else clause further down, or having problem
with it since there's a lot of gotos in the code.
Anyway, the easy fix is to add initialization to the lalr1.cc skeleton file.
See attached diff.
// Erik
-- System Information:
Debian Release: testing/unstable
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.15-zem1
Locale: LANG=en_US, LC_CTYPE=sv_SE (charmap=ISO-8859-1)
Versions of packages bison depends on:
ii libc6 2.3.6-1 GNU C Library: Shared libraries an
ii m4 1.4.4-1 a macro processing language
Versions of packages bison recommends:
pn bison-doc <none> (no description available)
-- no debconf information
--- /usr/share/bison/lalr1.cc-ORG 2006-02-23 00:11:05.000000000 +0100
+++ /usr/share/bison/lalr1.cc 2006-02-23 00:24:19.000000000 +0100
@@ -512,7 +512,7 @@
{
/* Look-ahead and look-ahead in internal form. */
int yylooka;
- int yyilooka;
+ int yyilooka = 0;
/// Semantic value of the look-ahead.
semantic_type yylval;
