25 lines
382 B
C
25 lines
382 B
C
|
#ifdef CHECK_VARIABLE_EXISTS
|
||
|
|
||
|
extern int CHECK_VARIABLE_EXISTS;
|
||
|
|
||
|
# ifdef __CLASSIC_C__
|
||
|
int main()
|
||
|
{
|
||
|
int ac;
|
||
|
char* av[];
|
||
|
# else
|
||
|
int main(int ac, char* av[])
|
||
|
{
|
||
|
# endif
|
||
|
if (ac > 1000) {
|
||
|
return *av[0];
|
||
|
}
|
||
|
return CHECK_VARIABLE_EXISTS;
|
||
|
}
|
||
|
|
||
|
#else /* CHECK_VARIABLE_EXISTS */
|
||
|
|
||
|
# error "CHECK_VARIABLE_EXISTS has to specify the variable"
|
||
|
|
||
|
#endif /* CHECK_VARIABLE_EXISTS */
|