xref: /PHP-5.3/Zend/zend_float.c (revision 831fbcf3)
1 /*
2    +----------------------------------------------------------------------+
3    | Zend Engine                                                          |
4    +----------------------------------------------------------------------+
5    | Copyright (c) 1998-2013 Zend Technologies Ltd. (http://www.zend.com) |
6    +----------------------------------------------------------------------+
7    | This source file is subject to version 2.00 of the Zend license,     |
8    | that is bundled with this package in the file LICENSE, and is        |
9    | available through the world-wide-web at the following url:           |
10    | http://www.zend.com/license/2_00.txt.                                |
11    | If you did not receive a copy of the Zend license and are unable to  |
12    | obtain it through the world-wide-web, please send a note to          |
13    | license@zend.com so we can mail you a copy immediately.              |
14    +----------------------------------------------------------------------+
15    | Authors: Christian Seiler <chris_se@gmx.net>                         |
16    +----------------------------------------------------------------------+
17 */
18 
19 /* $Id$ */
20 
21 #include "zend.h"
22 #include "zend_compile.h"
23 #include "zend_float.h"
24 
zend_init_fpu(TSRMLS_D)25 ZEND_API void zend_init_fpu(TSRMLS_D) /* {{{ */
26 {
27 #if XPFPA_HAVE_CW
28 	XPFPA_DECLARE
29 
30 	if (!EG(saved_fpu_cw)) {
31 		EG(saved_fpu_cw) = emalloc(sizeof(XPFPA_CW_DATATYPE));
32 	}
33 	XPFPA_STORE_CW(EG(saved_fpu_cw));
34 	XPFPA_SWITCH_DOUBLE();
35 #else
36 	if (EG(saved_fpu_cw)) {
37 		efree(EG(saved_fpu_cw));
38 	}
39 	EG(saved_fpu_cw) = NULL;
40 #endif
41 }
42 /* }}} */
43 
zend_shutdown_fpu(TSRMLS_D)44 ZEND_API void zend_shutdown_fpu(TSRMLS_D) /* {{{ */
45 {
46 #if XPFPA_HAVE_CW
47 	if (EG(saved_fpu_cw)) {
48 		XPFPA_RESTORE_CW(EG(saved_fpu_cw));
49 	}
50 #endif
51 	if (EG(saved_fpu_cw)) {
52 		efree(EG(saved_fpu_cw));
53 		EG(saved_fpu_cw) = NULL;
54 	}
55 }
56 /* }}} */
57 
zend_ensure_fpu_mode(TSRMLS_D)58 ZEND_API void zend_ensure_fpu_mode(TSRMLS_D) /* {{{ */
59 {
60 	XPFPA_DECLARE
61 
62 	XPFPA_SWITCH_DOUBLE();
63 }
64 /* }}} */
65