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Full Discussion: C programming working with multidimensional array
Top Forums Programming C programming working with multidimensional array Post 302297499 by shamrock on Friday 13th of March 2009 03:25:09 PM
Old 03-13-2009
Quote:
Originally Posted by littleboyblu
ok, it works fine. thanks very much. Could you explain me why
Code:
y(float **pf){}

is not correct and in which cases i have to use it?
float **pf is not correct because it is a pointer to pointer to float i.e. dual level pointer while each element of the array table is a pointer to an array of floats...
Code:
x()
{
  float x;      /* x is a variable of type float */
  float *pf;    /* pf is a pointer to float */
  float **ppf;  /* ppf is a pointer to pointer to float */

  pf = &x;      /* pf now points to x */
  ppf = &pf;    /* ppf now points to pf */
}

 

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LEARN ABOUT REDHAT

fixed

fixed(3alleg4)							  Allegro manual						    fixed(3alleg4)

NAME

       fixed - Fixed point integer to replace floats. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       typedef long fixed

DESCRIPTION

       This  is  a  fixed  point  integer  which can replace float with similar results and is faster than float on low end machines. Read chapter
       "Fixed point math routines" for the full explanation.

SEE ALSO

       ,  ex12bit(3alleg4),   ex3buf(3alleg4),	 ex3d(3alleg4),   excustom(3alleg4),   exfixed(3alleg4),   exrotscl(3alleg4),	exspline(3alleg4),
       exsprite(3alleg4), exstars(3alleg4), exupdate(3alleg4)

Allegro 							   version 4.4.2						    fixed(3alleg4)
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