usetat man page on DragonFly

usetat man page on DragonFly

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usetat(3)			Allegro manual			     usetat(3)

NAME
       usetat  -  Replaces  a  character in a string. Allegro game programming
       library.

SYNOPSIS
       #include <allegro.h>

       int usetat(char *s, int index, int c);

DESCRIPTION
       Replaces the character at the specified index in the string with	 value
       `c',  handling  any  adjustments	 for  variable	width data (ie. if `c'
       encodes to a different width than the previous value at that location).
       If  `index' is negative, it counts backward from the end of the string.
       Example:

	  usetat(text_string, 2, letter_a);

RETURN VALUE
       Returns the number of bytes by which the trailing part  of  the	string
       was  moved.  This  is of interest only with text encoding formats where
       characters have a variable length, like UTF-8.

SEE ALSO
       uoffset(3), ugetat(3), uinsert(3), uremove(3)

Allegro				 version 4.4.2			     usetat(3)

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