Syntax

#include <string.h>    /* also in <memory.h> */
int memicmp(void *buf1, void *buf2, unsigned int cnt);

memicmp compares the first cnt bytes of buf1 and buf2 without regard to the case of letters in the two buffers. The function converts all uppercase characters into lowercase and then performs the comparison.

The return value of memicmp indicates the result as follows: compact break=fit.

Value

Meaning
Less than 0
buf1 less than buf2
0
buf1 identical to buf2
Greater than 0
buf1 greater than buf2.

This example copies two strings that each contain a substring of 29 characters that are the same except for case. The example then compares the first 29 bytes without regard to case.

#include <stdio.h>#include <string.h>

char first[100],second[100];

int main(void)
{
   int result;

   strcpy(first, "Those Who Will Not Learn From History");
   strcpy(second, "THOSE WHO WILL NOT LEARN FROM their mistakes");
   printf("Comparing the first 29 characters of two strings.\n");
   result = memicmp(first, second, 29);
   printf("The first 29 characters of String 1 are ");
   if (result < 0)
      printf("less than String 2.\n");
   else
      if (0 == result)
         printf("equal to String 2.\n");
      else
         printf("greater than String 2.\n");
   return 0;

   /****************************************************************************
      The output should be:

      Comparing the first 29 characters of two strings.
      The first 29 characters of String 1 are equal to String 2
   ****************************************************************************/
}

• memchr
  
• memcmp
  
• memcpy
  
• memmove
  
• memset
  
• strcmp

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