operating_system

constexpr os_type spy::operating_system

inlineconstexpr

OS reporting value.

The spy::operating_system object can be compared to any other OS related value to verify if the code being compiled is compiled on a given Operating Systems.

Additionally, any of the OS related value are convertible to bool. They evaluates to true if they matches the correct OS currently used.

Supported Value

Name	Operating System
spy::android_	Android
spy::bsd	BSD
spy::cygwin_	CYGWIN
spy::ios_	iOS
spy::linux_	Linux
spy::macos_	MacOS
spy::unix_	UNIX
spy::windows_	Windows

Example

#include <spy/spy.hpp>
#include <iostream>
 
int main()
{
  // Comparisons
  if      constexpr( spy::operating_system == spy::bsd_     ) std::cout << "This code runs on BSD.\n";
  else if constexpr( spy::operating_system == spy::linux_   ) std::cout << "This code runs on Linux.\n";
  else if constexpr( spy::operating_system == spy::windows_ ) std::cout << "This code runs on Windows.\n";
 
  // Direct test
  if      constexpr( spy::bsd_     ) std::cout << "This code runs on BSD.\n";
  else if constexpr( spy::linux_   ) std::cout << "This code runs on Linux.\n";
  else if constexpr( spy::windows_ ) std::cout << "This code runs on Windows.\n";
}