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error

This version was saved 14 years, 5 months ago View current version     Page history
Saved by Kenneth Finnegan
on April 6, 2008 at 1:16:40 pm
 

This preprocessor directive can be used to make a file not compile with your own error message saying what's wrong

 

Code:

#error Custom error message saying what is wrong

 

Usage:

int foo(int bar) {

     #error Function foo not yet implemented

}

 


Extensions:

This can be used with #if to check properties of the environment

#if sizeof(int) < 4

     #error sizeof Int is too small, must be at least 4 bytes

#endif


Sources:

https://www.securecoding.cert.org/confluence/display/seccode/DCL03-A.+Use+a+static+assertion+to+test+the+value+of+a+constant+expression

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