Add warning about modifying an index in a for loop. Without this warning the kind of errors introduced in code are likely to be very difficult to debug (core dump).
Example code to reproduce below. Current commandline used to compile: -ansi -pedantic -Wall -O. #include <iostream> using namespace std; int main(int argc, char** argv) { int loopndx; int indexes[10]; for( loopndx=0 ; loopndx <=10 ; loopndx++) { if (loopndx==5) { loopndx=666666; } cout << indexes[loopndx]; } return (EXIT_SUCCESS); } -- Summary: Code warning Product: gcc Version: 3.4.4 Status: UNCONFIRMED Severity: enhancement Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: adam dot c dot scott at gmail dot com GCC build triplet: dmd GCC host triplet: cyg GCC target triplet: gdc http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38335