C++ keyword: constexpr (since C++11)
 
 
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 C++ 
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 Filesystem library (C++17)
 Concurrency support library (C++11)
 Execution control library (C++26)
C++ language 
 
  
  
 General topics
 Conditional execution statements
 Iteration statements (loops)
 Jump statements
 Dynamic exception specifications (until C++17*)
noexcept specifier (C++11) Exceptions
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 User-defined (C++11)
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 Attributes (C++11)
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 Type alias declaration (C++11)
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Keywords 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
(C++11)
(C++11)
(*)
(C++20)
(C++11)
(C++11)
(C++20)
(C++20)
constexpr
(C++11)
(C++20)
(C++26)
  (C++20)
(C++20)
(C++20)
(C++11)
(C++11)
  (C++11)
 Identifiers with special meaning
[edit] Usage
-  constexprifstatement
-  lambda-declarator that explicitly specifies the function call to be a constexprfunction
[edit] See also
 
 (since C++23)
-  switchstatement:case,default(as the declaration of the default case label),switch
-  gotostatement:goto
-  continuestatement:continue
-  breakstatement:break
-  returnstatement:return,co_return(since C++20)
-  do-whileloop andwhileloop:do,while
-  forloop and range-basedforloop:for