https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98518
Bug ID: 98518
Summary: std::array not bound checked with _GLIBCXX_ASSERTIONS
Product: gcc
Version: 10.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: arnaud02 at users dot sourceforge.net
Target Milestone: ---
operator[] of std::array is not bound checked when specifying
_GLIBCXX_ASSERTIONS.
Considering:
#define _GLIBCXX_ASSERTIONS 1
#include <array>
#include <cstdio>
int f(int i) {
std::array<int,2> x = {1, 4};
return x[i]; // bounds are not checked
}
int main() {
volatile int i = 2;
printf("f=%d\n", f(i));
}
the array bound violation is not detected. By constrast, replacing std::array
by std::vector results in the expected assertion violation.
