Integral types

Declaration

The Integral_type concept is declared in <origin/generic.hpp>.

template<typename T>
concept bool Integral_type()

Documentation

The following types are categorized as integral types: bool, char, char16_t, char32_t, wchar_t, short, int, long, long long, any implementation-defined extended integer types, all signed and unsigned variants of these types, and all const or volatile qualified variants of these types.

Example

template<typename T>
void f(T x)
{
  return 0;
}

template<origin::Integral_type T>
int f(T x)
{
  return 1;
}

int main()
{
  int x = 0;
  assert(f(x) == 1);
  assert(f(&x) == 0); // A pointer is not an integral type.
}