Namespaces
Variants
Views
Actions

Difference between revisions of "cpp/preprocessor/error"

From cppreference.com
m (Shorten template names. Use {{lc}} where appropriate.)
Line 5: Line 5:
 
===Syntax===
 
===Syntax===
  
{{sdcl list begin}}
+
{{sdsc begin}}
{{sdcl list item | {{ttb|#error}} {{sparam|error_message}} }}
+
{{sdsc | {{ttb|#error}} {{spar|error_message}} }}
{{sdcl list end}}
+
{{sdsc end}}
  
 
===Explanation===
 
===Explanation===
  
After encountering {{tt|#error}} directive, diagnostic message {{sparam|error_message}} is shown and the program is rendered ill-formed (the compilation is stopped).  
+
After encountering {{tt|#error}} directive, diagnostic message {{spar|error_message}} is shown and the program is rendered ill-formed (the compilation is stopped).  
  
 
''error_message'' can consist of several words not necessarily in quotes.  
 
''error_message'' can consist of several words not necessarily in quotes.  

Revision as of 19:51, 31 May 2013

 
 
C++ language
General topics
Flow control
Conditional execution statements
if
Iteration statements (loops)
for
range-for (C++11)
Jump statements
Functions
Function declaration
Lambda function expression
inline specifier
Dynamic exception specifications (until C++17*)
noexcept specifier (C++11)
Exceptions
Namespaces
Types
Specifiers
const/volatile
decltype (C++11)
auto (C++11)
constexpr (C++11)
consteval (C++20)
constinit (C++20)
Storage duration specifiers
Initialization
Expressions
Alternative representations
Literals
Boolean - Integer - Floating-point
Character - String - nullptr (C++11)
User-defined (C++11)
Utilities
Attributes (C++11)
Types
typedef declaration
Type alias declaration (C++11)
Casts
Memory allocation
Classes
Class-specific function properties
explicit (C++11)
static

Special member functions
Templates
Miscellaneous
 
 

Shows given message and renders program ill-formed.

Syntax

#error error_message

Explanation

After encountering #error directive, diagnostic message error_message is shown and the program is rendered ill-formed (the compilation is stopped).

error_message can consist of several words not necessarily in quotes.

See also