-
What will be the output of the following C code?
#include <stdio.h>
void main()
{
A();
printf("%d", n);
}
int n;
void A()
{
n = 10;
}
-
- 10
- 0
- Compilation Error
- Depend on compiler
- None of these
Correct Option: C
Compilation Error
main.c: In function ‘main’:
main.c:4:9: warning: implicit declaration of function ‘A’ [-Wimplicit-function-declaration]
A();
^
main.c:5:22: error: ‘n’ undeclared (first use in this function)
printf("%d", n);
^
main.c:5:22: note: each undeclared identifier is reported only once for each function it appears in
main.c: At top level:
main.c:8:10: warning: conflicting types for ‘A’
void A()
^
main.c:4:9: note: previous implicit declaration of ‘A’ was here
A();
^
