18 Diagnostics library [diagnostics]

18.3 Assertions [assertions]

The header <cassert> provides a macro for documenting C++ program assertions and a mechanism for disabling the assertion checks.

18.3.1 Header <cassert> synopsis [cassert.syn]

#define assert(E) see below
The contents are the same as the C standard library header <assert.h>, except that a macro named static_­assert is not defined.
See also: ISO C 7.2

18.3.2 The assert macro [assertions.assert]

An expression assert(E) is a constant subexpression, if