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  1. int set_val(char **a)
  2. {
  3.     *a=(char *)malloc(sizeof(char)*4);
  4. 	*(*a)='x';
  5. 	*(*a+1)='y';
  6. 	*(*a+2)='\0';
  7. 	printf("%s\n",*a); 
  8. 	return 0;
  9. }
  10.  
  11. int main()
  12. {
  13. 	char * a=NULL;
  14. 	set_val(&a);
  15. 	printf("%s",a);
  16. 	return 0;
  17. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin 
Standard input is empty
compilation info 
prog.cpp: In function ‘int set_val(char**)’:
prog.cpp:3: error: ‘malloc’ was not declared in this scope
prog.cpp:7: error: ‘printf’ was not declared in this scope
prog.cpp: In function ‘int main()’:
prog.cpp:13: error: ‘NULL’ was not declared in this scope
prog.cpp:15: error: ‘printf’ was not declared in this scope
stdout 
Standard output is empty
https://ideone.com/bjvrfS
language:
C++ (gcc 8.3)
created:
13 years ago
visibility:
public

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