c++/10407: non-numeric assignment to for initialzation cause seg fault
neojack99@hotmail.com
neojack99@hotmail.com
Mon Apr 14 21:46:00 GMT 2003
>Number: 10407
>Category: c++
>Synopsis: non-numeric assignment to for initialzation cause seg fault
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Mon Apr 14 21:46:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator: neojack99@hotmail.com
>Release: gcc version 3.2.2 20030322 (Gentoo Linux 1.4 3.2.2-r2)
>Organization:
>Environment:
Reading specs from /usr/lib/gcc-lib/i686-pc-linux-gnu/3.2.2/specs
Configured with: /var/tmp/portage/gcc-3.2.2-r2/work/gcc-3.2.2/configure --prefix=/usr --bindir=/usr/i686-pc-linux-gnu/gcc-bin/3.2 --includedir=/usr/lib/gcc-lib/i686-pc-linux-gnu/3.2.2/include --datadir=/usr/share/gcc-data/i686-pc-linux-gnu/3.2 --mandir=/usr/share/gcc-data/i686-pc-linux-gnu/3.2/man --infodir=/usr/share/gcc-data/i686-pc-linux-gnu/3.2/info --enable-shared --host=i686-pc-linux-gnu --target=i686-pc-linux-gnu --with-system-zlib --enable-languages=c,c++,ada,f77,objc,java --enable-threads=posix --enable-long-long --disable-checking --enable-cstdio=stdio --enable-clocale=generic --enable-__cxa_atexit --enable-version-specific-runtime-libs --with-gxx-include-dir=/usr/lib/gcc-lib/i686-pc-linux-gnu/3.2.2/include/g++-v3 --with-local-prefix=/usr/local --enable-shared --enable-nls --without-included-gettext
Thread model: posix
>Description:
the code below compiles fine, but segfaults on the for loop - particularly the "int i = non-number" part.
Compiled as:
g++ for_seg_faulter.cpp -o for_seg_faulter
* Note: itdoes not seg fault with icc.
Sample code:
#include <string>
#include <iostream>
#include <fstream>
#include <vector>
using namespace std;
int main() {
vector<string> v;
ifstream in("for_seg_faulter.cpp");
string line;
while(getline(in, line))
v.push_back(line); // Add the line to the end
//
for(int i = v.size(); i >= 0 ; i--)
//Using the actual v.size (21) works. As it is it seg faults.
cout << i + 1 << ": " << v[i] << endl;
}
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
More information about the Gcc-bugs
mailing list