hartmannathan commented on PR #15861:
URL: https://github.com/apache/nuttx/pull/15861#issuecomment-2698419595
> Sure, won't argue, but #define BOARD_NGPIOINT 0 and no define at all is
the same thing. Preprocessor assigns 0 to the defines not given.
@LuchianMihai I don't think that's true.
```
$ cat main.c
#include <stdio.h>
#define MY_ZERO 0
#ifdef MY_ZERO
#warning "MY_ZERO is defined!"
#else
#warning "MY_ZERO is NOT defined!"
#endif
int main(int argc, const char * argv[])
{
printf("Hello, World!\n");
return 0;
}
$ gcc main.c -o main
main.c:6:2: warning: "MY_ZERO is defined!" [-W#warnings]
#warning "MY_ZERO is defined!"
^
1 warning generated.
```
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