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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4.    /* local variable definition */
  5.    int counter = 10;
  6.  
  7.    /* while loop execution */
  8.    while( counter > 0 ) {
  9.       printf("value of a: %d\n", counter);
  10.       a--;
  11.    }
  12.  
  13.    return 0;
  14. }
  15.  
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
prog.c: In function 'main':
prog.c:10:7: error: 'a' undeclared (first use in this function)
       a--;
       ^
prog.c:10:7: note: each undeclared identifier is reported only once for each function it appears in
stdout
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Standard output is empty
https://ideone.com/C6STFg
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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