c - How can I convert char[] array to char* -

i want convert char[] array char* string in c programing language. here did. can't reach solution . please me. here code:

#include <stdio.h> void fnk(char *chr){     printf("%s",chr); } int main(){     char charfoo[100];     int i=50;     gets(charfoo);     for(int j=0;j<i;j++){          fnk((char*) charfoo[j]);     }  } 

i think mean following

fnk( &charfoo[i]); 

take account better write loop following way

for( int j=0; charfoo[j]; j++ ) {      fnk( &charfoo[j]); } 

also function gets unsafe , not supported more c standard. instead use function fgets example

fgets( charfoo, sizeof( charfoo ), stdin ); 

in case loop can like

for( int j=0; charfoo[j] != '\0' && charfoo[j] != '\n'; j++ ) {      fnk( &charfoo[j]); } 

if want output 1 character in function function should defined like

void fnk(char chr){     printf("%c",chr); } 

and called like

fnk( charfoo[j]);