readability-use-concise-preprocessor-directives¶
Finds uses of #if
that can be simplified to #ifdef
or #ifndef
and,
since C23 and C++23, uses of #elif
that can be simplified to #elifdef
or #elifndef
:
#if defined(MEOW)
#if !defined(MEOW)
// becomes
#ifdef MEOW
#ifndef MEOW
Since C23 and C++23:
#elif defined(MEOW)
#elif !defined(MEOW)
// becomes
#elifdef MEOW
#elifndef MEOW