MATLAB COMPILER RELEASE NOTES Guide de l'utilisateur télécharger pdf (Page 165)

Print Handlers

5-49

•mrank.m determines the rank of the magic squares from 1 to n.

function r = mrank(n)

r = zeros(n, 1);

for k = 1:n

r(k) = rank(magic(k));

end

•myph.c contains the print handler and the print handler initialization

routine, in that order. In the example, this C file is written by the user.

#include "matlab.h"

#include “mr_external.h”

static void myPrintHandler(const char *s)

{

printf("%s\n",s);

}

void Mmr_initprnt(void)

{

mlfSetPrintHandler(myPrintHandler);

}

Writing the Print Handler in C/C++

First, write a print handler in C following the standard rules for a print

handler: it must take one argument of type

const char *s and return void.

The p rint handler in this e xample is very simple.

static void myPrintHandler(const char *s)

{

printf("%s\n",s);

}

The file myph.c contains this code.

Registering the Print Handler

Registering the print handler requires several steps, some performed in C and

some in M. Be careful to name your C and M print handler initialization

functions according to the rules presented below. Otherwise, the

correspondence between the two is missing.

1 2 ... 160 161 162 163 164 165 166 167 168 169 170 ... 263 264

Pas de commentaire

MATLAB COMPILER RELEASE NOTES Guide de l'utilisateur Page 165