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SuSE 11.3 - man page for xtcalloc (suse section 3)

XtMalloc(3)				   XT FUNCTIONS 			      XtMalloc(3)

NAME
       XtMalloc, XtCalloc, XtRealloc, XtFree, XtNew, XtNewString - memory management functions

SYNTAX
       char *XtMalloc(Cardinal size);

       char *XtCalloc(Cardinal num, Cardinal size);

       char *XtRealloc(char *ptr, Cardinal num);

       void XtFree(char *ptr);

       type *XtNew(type);

       String XtNewString(String string);

ARGUMENTS
       num	 Specifies the number of bytes or array elements.

       ptr	 Specifies a pointer to the old storage or to the block of storage that is to be
		 freed.

       size	 Specifies the size of an array element (in bytes) or the number of bytes
		 desired.

       string	 Specifies a previously declared string.

       type	 Specifies a previously declared data type.

DESCRIPTION
       The XtMalloc functions returns a pointer to a block of storage of at least the specified
       size bytes.  If there is insufficient memory to allocate the new block, XtMalloc calls
       XtErrorMsg.

       The XtCalloc function allocates space for the specified number of array elements of the
       specified size and initializes the space to zero.  If there is insufficient memory to
       allocate the new block, XtCalloc calls XtErrorMsg.

       The XtRealloc function changes the size of a block of storage (possibly moving it).  Then,
       it copies the old contents (or as much as will fit) into the new block and frees the old
       block.  If there is insufficient memory to allocate the new block, XtRealloc calls XtEr-
       rorMsg.	If ptr is NULL, XtRealloc allocates the new storage without copying the old con-
       tents; that is, it simply calls XtMalloc.

       The XtFree function returns storage and allows it to be reused.	If ptr is NULL, XtFree
       returns immediately.

       XtNew returns a pointer to the allocated storage.  If there is insufficient memory to
       allocate the new block, XtNew calls XtErrorMsg.	XtNew is a convenience macro that calls
       XtMalloc with the following arguments specified:

       ((type *) XtMalloc((unsigned) sizeof(type))

       XtNewString returns a pointer to the allocated storage.	If there is insufficient memory
       to allocate the new block, XtNewString calls XtErrorMsg.  XtNewString is a convenience
       macro that calls XtMalloc with the following arguments specified:

       (strcpy(XtMalloc((unsigned) strlen(str) + 1), str))

SEE ALSO
       X Toolkit Intrinsics - C Language Interface
       Xlib - C Language X Interface

X Version 11				   libXt 1.0.7				      XtMalloc(3)


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