memory(3C)          (C Programming Language Utilities)           memory(3C)


   NAME
         memory: memccpy, memchr, memcmp, memcpy, memmove, memset - memory
         operations

   SYNOPSIS
         #include <string.h>

         void *memccpy (void *s1, const void *s2, int c, size_t n);

         void *memchr (const void *s, int c, size_t n);

         int memcmp (const void *s1, const void *s2, size_t n);

         void *memcpy (void *s1, const void *s2, size_t n);

         void *memmove (void *s1, const void *s2, size_t n);

         void *memset (void *s, int c, size_t n);

   DESCRIPTION
         These functions operate as efficiently as possible on memory areas
         (arrays of bytes bounded by a count, not terminated by a null
         character).  They do not check for the overflow of any receiving
         memory area.

         memccpy copies bytes from memory area s2 into s1, stopping after the
         first occurrence of c (converted to an unsigned char) has been
         copied, or after n bytes have been copied, whichever comes first.  It
         returns a pointer to the byte after the copy of c in s1, or a NULL
         pointer if c was not found in the first n bytes of s2.

         memchr returns a pointer to the first occurrence of c (converted to
         an unsigned char) in the first n bytes (each interpreted as an
         unsigned char) of memory area s, or a NULL pointer if c does not
         occur.

         memcmp compares its arguments, looking at the first n bytes (each
         interpreted as an unsigned char), and returns an integer less than,
         equal to, or greater than 0, according as s1 is lexicographically
         less than, equal to, or greater than s2 when taken to be unsigned
         characters.

         memcpy copies n bytes from memory area s2 to s1.  It returns s1.

         memmove copies n bytes from memory areas s2 to s1.  Copying between
         objects that overlap will take place correctly.  It returns s1.

         memset sets the first n bytes in memory area s to the value of c
         (converted to an unsigned char).  It returns s.




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   memory(3C)          (C Programming Language Utilities)           memory(3C)


   SEE ALSO
         string(3C).



















































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