c - Duplicating strchr() -

i pretty new c, taking introductory course, , having issues homework problem. goal of program pass array name of type string , dynamically chosen character loop function. function must check string chosen character , if found return pointer character in string. if character not found null pointer supposed returned. code gets stuck in infinite loop on first character of string...

#include<stdio.h>  char occur(char array[],char c);  int main(void){     char array[]="hello world!";     int = 33;     char c;     char occurence;      for(i=33;i<=126;i++){         c = i;         occurence=occur(array,c);         printf("%c\n",occurence);     }      return 0; }  char occur(char array[], char c){     int = 0;     char *temp=array;      for(temp=array+i;*temp!='\0';i++){         if(c==array[i]){             return *temp;         }         else{}     }      return 0; } 

use

for(temp=array; *temp!='\0'; temp++){    if(c==*temp) {    ...