Convert MFC CString to integer

Question

How to convert a CString object to integer in MFC.

Answer 1

The problem with the accepted answer is that it cannot signal failure. There's strtol (STRing TO Long) which can. It's part of a larger family: wcstol (Wide Character String TO Long, e.g. Unicode), strtoull (TO Unsigned Long Long, 64bits+), wcstoull, strtof (TO Float) and wcstof.