mortimer59

I install codeblocs on MaxMsp 4.56 on pc but how to compile this on pc: this code is for macintosh in first, and how do you compile same object for mac and pc.

/*     a fifo buffer filled with longs 

    and empties itself on every bang (in order of coming in)

// copyright St. Rainstick, Amsterdam 1995

// any changes to the source must be sent to:

// *********************************************************************************

    setup(&class, fifo_new, fifo_free, (short)sizeof(Fifo), 0L, A_DEFLONG,0);

    x->count = (x->count + 1) % x->size;

    outlet_int(x->out,x->getal[x->end]);

    x = (struct fifo *)newobject(class);

    x->getal = (long *)NewPtr(n * 4);

I install codeblocs on MaxMsp 4.56 on pc but how to compile this on pc: this code is  for macintosh in first, and how do you compile same  object for mac and pc.

/* --------fifo.c----------- */
//	created 17/3/95
//	modified 12/4/96

/* 	a fifo buffer filled with longs 
	and empties itself on every bang (in order of coming in)
*/

// copyright St. Rainstick, Amsterdam 1995
// any changes to the source must be sent to:
// St. Rainstick
// Herenmarkt 12
// 1012 ED Amsterdam
// rainstick@xs4all.nl

#include "ext.h"
#include 
#include "typedefs.h"

typedef struct fifo
{
	struct object d_ob;
	long *getal;
	long count, end, size;
	void *out;

void *fifo_new();
void *fifo_int();
void *fifo_bang();
void *fifo_free();
void *class;

	setup(&class, fifo_new, fifo_free, (short)sizeof(Fifo), 0L, A_DEFLONG,0);
	addbang(fifo_bang);
	addint(fifo_int);
	RestoreA4();
}

void *fifo_int(x,n)
struct fifo *x;
long n;
{
register i;

SetUpA4();
	x->getal[x->count] = n;
	x->count = (x->count + 1) % x->size;
RestoreA4();
}

void *fifo_bang(x)
struct fifo *x;
{
register i;

SetUpA4();
if (x->end != x->count){
	outlet_int(x->out,x->getal[x->end]);
	x->end = (x->end + 1) % x->size;
	}
RestoreA4();
}

void *fifo_free(x)
struct fifo *x;
{
SetUpA4();
	DisposPtr((Ptr)(x->getal));
RestoreA4();
}

	SetUpA4();
	x = (struct fifo *)newobject(class);
	if (n
	x->size = n;
	x->end = 0;
	x->count = 0;
	x->getal = (long *)NewPtr(n * 4);
	x->out = intout(x);

fifo

This code is ancient. Get an up to date copy of the SDK.

The references to fptr, and all the A4-world stuff -- SetupA4(), RestoreA4(), etc -- have not been used since about 1995. This is seriously dead code you're working with.

Delete all occurrences of any of the following statements:

While you're at it, edit all function definitions to use ANSI C syntax. So, for instance, replace:

void *fifo_int(x,n)
struct fifo *x;
long n;
{


void main(void)
  {
  setup((t_messlist*) &class,
        (method) fifo_new,
        (method) fifo_free,
        sizeof(Fifo), 0L, A_DEFLONG, 0);
  addbang(fifo_bang);
  addint(fifo_int);
  }


Note the explicit typecasts, which will be necessary with a modern compiler. OTOH, since functions are now prototyped, you don't need to typecast sizeof(Fifo).

Some compilers will complain about main() not returning int. This is a harmless warning, although you can apparently safely define main to return int and end the function with a return 0; statement if that makes you happier.

Don't forget to read the SDK documentation to understand what you're doing.

Note the explicit typecasts, which will be necessary with a modern compiler. OTOH, since functions are now prototyped, you don't need to typecast sizeof(Fifo). 

Don't forget to read the SDK documentation to understand what you're doing. 