c - passing arg 1 of `foo' from incompatible pointer type -


why shows warning: 

#include<stdio.h> foo (const char **p) {   }  int main(int argc , char **argv) {     foo(argv); }

but following not show warning 

char * cp; const char *ccp; ccp = cp;

the first code snippet shows warning passing arg 1 of foo incompatible pointer type. second snippet not show warning. both const pointers

see c faq list

you can cast in order remove warnings:

foo((const char **)argv);

but faq says: need such cast may indicate deeper problem cast doesn't fix.


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