data_model

constexpr auto spy::data_model = data_model_type{}

inlineconstexpr

Data Model reporting value.

The spy::data_model object can be compared to any other data model related value to verify if the code being compiled for a specific data model

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

Supported Value

Name	Data Model
spy::ilp32	ILP32
spy::lp32	LP32
spy::silp64	SILP64
spy::ilp64	ILP64
spy::llp64	LLP64
spy::lp64	LP64

Example

#include <spy/spy.hpp>
#include <iostream>
 
int main()
{
  // Comparisons
  if      constexpr( spy::data_model == spy::ilp32_ ) std::cout << "This code is compiled on a ILP32 system\n";
  else if constexpr( spy::data_model == spy::ilp64_ ) std::cout << "This code is compiled on a ILP64 system\n";
  else if constexpr( spy::data_model == spy::lp64_  ) std::cout << "This code is compiled on a LP64 system\n";
 
  // Direct test
  if      constexpr( spy::ilp32_ ) std::cout << "This code is compiled on a ILP32 system\n";
  else if constexpr( spy::ilp64_ ) std::cout << "This code is compiled on a ILP64 system\n";
  else if constexpr( spy::lp64_  ) std::cout << "This code is compiled on a LP64 system\n";
}