text: #include <stdio.h>
  
  
  static void del_char_in_string(char *string, char del_ch) {
  	char *p = string;
  	char *cur = NULL;
  	char *next = NULL;
  	
  	while (*p) {
  		if (*p == del_ch) {
  			cur = p;
  			next = p + 1;
  			while (*next) {
  				// Del all char that equal del_ch
  				*cur = *next;
  				cur++;
  				next++;
  			}
  			// Don`t end string.
  			*cur = '\0';
  		} else {
  			p++;
  		}
  	} 
  }
  
  void main() {
  	char str[] = "Hello choeonogozhi";
  	del_char_in_string(str, 'o');
  	puts(str);
  }