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TC Prog Guide
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card_62300.txt
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1991-02-27
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3KB
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107 lines
-- card: 62300 from stack: in
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----- text -----
File 1 of 2 demonstrating a suggested TC root class:
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/*
* FILE: class.h
* AUTHOR: R.G.
* CREATED: August 4, 1990
*
* Defines Generic_Class root class and declares alternate
* object allocation/deallocation functions.
*/
# define _H_class
# define INDIRECT
/* Means Think C will use handles for objects and move object memory
* occasionally. If there are many objects, undefining this may
* speed things up.
*/
# define TRUE 1
# define FALSE 0
typedef int boolean;
/******************************************************************
* abstract Generic_Class definition
******************************************************************/
# ifdef INDIRECT
struct Generic_Class:indirect
# else
struct Generic_Class:direct
# endif
{
boolean init(void);
boolean destroy(void);
};
/******************************************************************
* Function to simulate automated initialization.
*
* This function does not work with C++, as discussed in the
* source file. Instead a macro may be used in conjunction with
* a simpler function cond_init():
*
* # define new_init(cclass) cond_init(new(cclass))
*
* Here, cond_init() should accept a newly-created object as its
* argument and return either the successfully initialized object
* or NULL.
******************************************************************/
void *new_init(void*);
/******************************************************************
* Function to simulate automated deallocation.
******************************************************************/
void destroy_delete(Generic_Class*);
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210
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Root class for TC using automated constructors/destructors
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p3