how to enforce vector subscript out of range debug assertion on linux

Question

This code works on linux.

#include <vector>
#include <iostream>

using namespace std;


int main () 
{
    vector<int> v(10, 0);

    cout << v[100];

    return 0;
}

operator[] is declared with a comment

      // element access
      /**
       *  @brief  Subscript access to the data contained in the %vector.
       *  @param __n The index of the element for which data should be
       *  accessed.
       *  @return  Read/write reference to data.
       *
       *  This operator allows for easy, array-style, data access.
       *  Note that data access with this operator is unchecked and
       *  out_of_range lookups are not defined. (For checked lookups
       *  see at().)
       */
      reference
      operator[](size_type __n) _GLIBCXX_NOEXCEPT
      { return *(this->_M_impl._M_start + __n); }

But MSVS compiler warns of such subscript-out-of-range cases. Is there any way to mimic it's behavior?

[Related](https://stackoverflow.com/questions/24246017/compile-time-triggered-range-check-for-stdvector). — Baum mit Augen, Jul 14 '17 at 13:34

score 1 · Answer 1 · answered Jul 14 '17 at 13:40

1

Actually, a colleague of mine had found the desired answer:

-D_GLIBCXX_DEBUG

flag activates debug mode for libstdc++.

answered Jul 14 '17 at 13:40

sdd

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how to enforce vector subscript out of range debug assertion on linux

1 Answers1