C Language Comments Commenting using the preprocessor
Example
Large chunks of code can also be "commented out" using the preprocessor directives #if 0 and #endif. This is useful when the code contains multi-line comments that otherwise would not nest.
#if 0 /* Starts the "comment", anything from here on is removed by preprocessor */
/* A large amount of code with multi-line comments */
int foo()
{
/* lots of code */
...
/* ... some comment describing the if statement ... */
if (someTest) {
/* some more comments */
return 1;
}
return 0;
}
#endif /* 0 */
/* code from here on is "uncommented" (included in compiled executable) */
...
