has_string_contains.hpp File Reference

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Macro Definition Documentation

ARENE_STD_LIBRARY_STRING_CONTAINS

#define ARENE_STD_LIBRARY_STRING_CONTAINS

A platform support query for testing if __cpp_lib_string_contains is defined.

Usage:

#if ARENE_IS_ON(ARENE_STD_LIBRARY_STRING_CONTAINS)

The value of this query is determined as follows, in order of precedence:

1. If ARENE_STD_LIBRARY_STRING_CONTAINS has been explicitly defined via a -D flag to the compiler or similar:
   • ARENE_ON if it is truthy
   • ARENE_OFF if it is not truthy

1. If __cpp_lib_string_contains is defined it is ARENE_ON_BY_DEFAULT

1. Otherwise, it is ARENE_OFF_BY_DEFAULT

ARENE_STD_LIBRARY_STRING_CONTAINS_I_

#define ARENE_STD_LIBRARY_STRING_CONTAINS_I_   ARENE_OFF_BY_DEFAULT