Editing memset - FilterMeisterWiki

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= memset =

== Syntax ==
{{void* memset(void *dest, int val, int n)}}

== Arguments ==
:'''dest'''
::The memory block to copy data to
:'''val'''
::The value that all the bytes in the memory block will be set to, up to the provided length
:'''n'''
::The number of bytes to be set

== Return ==
Returns a pointer to the destination ('''dest''') memory block.

== Description ==
memset sets each byte in the memory block to the given value/character, up to the number of bytes given.

== Example ==
<code>
%fml

OnFilterStart: {
  
  // Allocate 1000 bytes of memory
  char* strbuffer;
  strbuffer = malloc(1000);
  
  // Fill the memory block with zeros
  memset(strbuffer, 0, 1000);
  
  // Set short lengths to a letter,
  // progressively overwriting them
  memset(strbuffer, 'e', 10);
  memset(strbuffer, 'D', 8);
  memset(strbuffer, 'c', 6);
  memset(strbuffer, 'B', 4);
  memset(strbuffer, 'a', 2);
  
  // Prints 'aaBBccDDee'
  printf("%s", strbuffer);
  
  // Release the memory again
  free(strbuffer);
  return true;
}
</code>

== See Also ==
((free)), ((strncpy)), ((strcpy)), ((malloc))

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