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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcurses/widechar/lib_unget_wch.c	Lines:	0	26	0.0 %
Date:	2017-11-13	Branches:	0	16	0.0 %


/* $OpenBSD: lib_unget_wch.c,v 1.1 2010/09/06 17:26:17 nicm Exp $ */

/****************************************************************************
 * Copyright (c) 2002-2007,2008 Free Software Foundation, Inc.              *
 *                                                                          *
 * Permission is hereby granted, free of charge, to any person obtaining a  *
 * copy of this software and associated documentation files (the            *
 * "Software"), to deal in the Software without restriction, including      *
 * without limitation the rights to use, copy, modify, merge, publish,      *
 * distribute, distribute with modifications, sublicense, and/or sell       *
 * copies of the Software, and to permit persons to whom the Software is    *
 * furnished to do so, subject to the following conditions:                 *
 *                                                                          *
 * The above copyright notice and this permission notice shall be included  *
 * in all copies or substantial portions of the Software.                   *
 *                                                                          *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
 *                                                                          *
 * Except as contained in this notice, the name(s) of the above copyright   *
 * holders shall not be used in advertising or otherwise to promote the     *
 * sale, use or other dealings in this Software without prior written       *
 * authorization.                                                           *
 ****************************************************************************/

/****************************************************************************
 *  Author: Thomas E. Dickey 2002                                           *
 ****************************************************************************/

/*
**	lib_unget_wch.c
**
**	The routine unget_wch().
**
*/

#include <curses.priv.h>

MODULE_ID("$Id: lib_unget_wch.c,v 1.1 2010/09/06 17:26:17 nicm Exp $")

/*
 * Wrapper for wcrtomb() which obtains the length needed for the given
 * wide-character 'source'.
 */
NCURSES_EXPORT(size_t)
_nc_wcrtomb(char *target, wchar_t source, mbstate_t * state)
{
    int result;

    if (target == 0) {
	wchar_t temp[2];
	const wchar_t *tempp = temp;
	temp[0] = source;
	temp[1] = 0;
	result = wcsrtombs(NULL, &tempp, 0, state);
    } else {
	result = wcrtomb(target, source, state);
    }
    if (!isEILSEQ(result) && (result == 0))
	result = 1;
    return result;
}

NCURSES_EXPORT(int)
unget_wch(const wchar_t wch)
{
    int result = OK;
    mbstate_t state;
    size_t length;
    int n;

    T((T_CALLED("unget_wch(%#lx)"), (unsigned long) wch));

    init_mb(state);
    length = _nc_wcrtomb(0, wch, &state);

    if (length != (size_t) (-1)
	&& length != 0) {
	char *string;

	if ((string = (char *) malloc(length)) != 0) {
	    init_mb(state);
	    wcrtomb(string, wch, &state);

	    for (n = (int) (length - 1); n >= 0; --n) {
		if (_nc_ungetch(SP, string[n]) != OK) {
		    result = ERR;
		    break;
		}
	    }
	    free(string);
	} else {
	    result = ERR;
	}
    } else {
	result = ERR;
    }

    returnCode(result);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: lib_unget_wch.c,v 1.1 2010/09/06 17:26:17 nicm Exp $ */
2
3			/****************************************************************************
4			* Copyright (c) 2002-2007,2008 Free Software Foundation, Inc. *
5			* *
6			* Permission is hereby granted, free of charge, to any person obtaining a *
7			* copy of this software and associated documentation files (the *
8			* "Software"), to deal in the Software without restriction, including *
9			* without limitation the rights to use, copy, modify, merge, publish, *
10			* distribute, distribute with modifications, sublicense, and/or sell *
11			* copies of the Software, and to permit persons to whom the Software is *
12			* furnished to do so, subject to the following conditions: *
13			* *
14			* The above copyright notice and this permission notice shall be included *
15			* in all copies or substantial portions of the Software. *
16			* *
17			* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
18			* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
19			* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
20			* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
21			* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
22			* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
23			* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
24			* *
25			* Except as contained in this notice, the name(s) of the above copyright *
26			* holders shall not be used in advertising or otherwise to promote the *
27			* sale, use or other dealings in this Software without prior written *
28			* authorization. *
29			****************************************************************************/
30
31			/****************************************************************************
32			* Author: Thomas E. Dickey 2002 *
33			****************************************************************************/
34
35			/*
36			** lib_unget_wch.c
37			**
38			** The routine unget_wch().
39			**
40			*/
41
42			#include <curses.priv.h>
43
44			MODULE_ID("$Id: lib_unget_wch.c,v 1.1 2010/09/06 17:26:17 nicm Exp $")
45
46			/*
47			* Wrapper for wcrtomb() which obtains the length needed for the given
48			* wide-character 'source'.
49			*/
50			NCURSES_EXPORT(size_t)
51			_nc_wcrtomb(char target, wchar_t source, mbstate_t state)
52			{
53			int result;
54
55			if (target == 0) {
56			wchar_t temp[2];
57			const wchar_t *tempp = temp;
58			temp[0] = source;
59			temp[1] = 0;
60			result = wcsrtombs(NULL, &tempp, 0, state);
61			} else {
62			result = wcrtomb(target, source, state);
63			}
64			if (!isEILSEQ(result) && (result == 0))
65			result = 1;
66			return result;
67			}
68
69			NCURSES_EXPORT(int)
70			unget_wch(const wchar_t wch)
71			{
72			int result = OK;
73			mbstate_t state;
74			size_t length;
75			int n;
76
77			T((T_CALLED("unget_wch(%#lx)"), (unsigned long) wch));
78
79			init_mb(state);
80			length = _nc_wcrtomb(0, wch, &state);
81
82			if (length != (size_t) (-1)
83			&& length != 0) {
84			char *string;
85
86			if ((string = (char *) malloc(length)) != 0) {
87			init_mb(state);
88			wcrtomb(string, wch, &state);
89
90			for (n = (int) (length - 1); n >= 0; --n) {
91			if (_nc_ungetch(SP, string[n]) != OK) {
92			result = ERR;
93			break;
94			}
95			}
96			free(string);
97			} else {
98			result = ERR;
99			}
100			} else {
101			result = ERR;
102			}
103
104			returnCode(result);
105			}