memlwr

memlwr

Translate a Memory Block to Lowercase

Portability: SAS/C extension

SYNOPSIS
DESCRIPTION
RETURN VALUE
CAUTION
EXAMPLE
RELATED FUNCTIONS
SEE ALSO

SYNOPSIS

#include <lcstring.h>

void *memlwr(void *memblk, size_t n);

DESCRIPTION

memlwr scans the first n bytes of the input memory block addressed by memblk , converting uppercase characters ('A' through 'Z') to lowercase characters ('a' through 'z').

memlwr is not affected by a program's locale.

RETURN VALUE

memlwr returns a pointer to the memory block.

CAUTION

The second argument to memlwr is size_t . If a negative number is passed, massive overlaying of memory occurs.

EXAMPLE

#include <stdio.h>
#include <lcstring.h>

static struct PART {
   size_t length;
   char *word;
   } sentence[] = { {  4, "THIS " },
                    {  8, "EXAMPLE " },
                    {  6, "SHOWS " },
                    {  8, "THE USE " },
                    {  7, "OF THE " },
                    {  7, "memlwr " },
                    { 11, "FUNCTION.\n" } };

#define NUM_PARTS (sizeof(sentence)/sizeof(struct PART))

main()
{
   int x;

   for (x = 0; x < NUM_PARTS; x++) {
      memlwr(sentence[x].word, sentence[x].length);
      fputs(sentence[x].word, stdout);
   }
   exit(0);
}

RELATED FUNCTIONS

memupr , memxlt , strlwr

SEE ALSO

String Utility Functions

Chapter Contents
Previous
Next
Top of Page