#error directive (C/C++) | Microsoft Learn
Oct 15, 2025 · The #error directive emits a user-specified error message at compile time. Then it terminates the compilation.
Diagnostic directives - cppreference.com
1) After encountering the #error directive, an implementation displays the message diagnostic-message and renders the program ill …
What is the use of the #error directive in C? - Stack Overflow
Sep 2, 2025 · When the preprocessor hits the #error directive, it will report the string as an error message and halt compilation; what …
How does #error in C/C++ work? - Stack Overflow
May 8, 2010 · If you have several macros that could be defined and you want to be sure that only certain combinations of them are …
The #error directive - IBM
The #error directive is often used in the #else portion of a #if – #elif – #else construct, as a safety check during compilation. For …
Diagnostics (The C Preprocessor)
The directive ‘ #error ’ causes the preprocessor to report a fatal error. The tokens forming the rest of the line following ‘ #error ’ are …
#error - C and C++ Syntax Reference - Cprogramming.com
The #error macro allows you to make compilation fail and issue a statement that will appear in the list of compilation errors. It is most …
C Language: #error Directive - TechOnTheNet
This C tutorial explains how to use the #error preprocessor directive in the C language. In the C Programming Language, the #error …
How to correct a #VALUE! error | Microsoft Support
#VALUE is Excel's way of saying, "There's something wrong with the way your formula is typed. Or, there's something wrong with the …
Fix connection and loading errors in Chrome
In Chrome, error messages like "Aw, Snap!" indicate that there’s a connection or loading issue when the browser tries to establish or …