 #include <stdio.h>
#include <stdlib.h>
int strcmp(char *source, char *dest)
   {
 while(*source == *dest && *source != '\0' && *dest != '\0')
  {
source++;
dest++;
 }
if (*source =='\0' && *dest == '\0')
return 0;
else
return -1;
 }
int main()
{
char *str1 = "abcde";
char *str2 = "abcde";
printf("ret = %d", mystrcmp(str1, str2));
return 0;
}
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