std::type_info::before

bool before( const type_info& rhs );

Returns true if the referred type precedes type, referred to by rhs in the implementation's collation order. No guarantees are given, in particular, the collation order can change between the invocations of the same program.

Parameters

Return value

true if the referred type precedes type, referred to by rhs in the implementation's collation order.

Example

#include <iostream>
#include <typeinfo>
 
int main()
{
  if(typeid(int).before(typeid(char)))
    std::cout << "int goes before char in this implementation.\n";
  else
    std::cout << "char goes before int in this implementation.\n";
}

char goes before int in this implementation.

See also