nexmon – Blame information for rev 1

Subversion Repositories:
Rev:
Rev Author Line No. Line
1 office 1 /* GLIB - Library of useful routines for C programming
2 * Copyright (C) 1995-1998 Peter Mattis, Spencer Kimball and Josh MacDonald
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
16 */
17  
18 /*
19 * Modified by the GLib Team and others 1997-2000. See the AUTHORS
20 * file for a list of people on the GLib Team. See the ChangeLog
21 * files for a list of changes. These files are distributed with
22 * GLib at ftp://ftp.gtk.org/pub/gtk/.
23 */
24  
25 #include "config.h"
26  
27 #include "gversion.h"
28  
29 /**
30 * SECTION:version
31 * @Title: Version Information
32 * @Short_description: variables and functions to check the GLib version
33 *
34 * GLib provides version information, primarily useful in configure
35 * checks for builds that have a configure script. Applications will
36 * not typically use the features described here.
37 *
38 * The GLib headers annotate deprecated APIs in a way that produces
39 * compiler warnings if these deprecated APIs are used. The warnings
40 * can be turned off by defining the macro %GLIB_DISABLE_DEPRECATION_WARNINGS
41 * before including the glib.h header.
42 *
43 * GLib also provides support for building applications against
44 * defined subsets of deprecated or new GLib APIs. Define the macro
45 * %GLIB_VERSION_MIN_REQUIRED to specify up to what version of GLib
46 * you want to receive warnings about deprecated APIs. Define the
47 * macro %GLIB_VERSION_MAX_ALLOWED to specify the newest version of
48 * GLib whose API you want to use.
49 */
50  
51 /**
52 * glib_major_version:
53 *
54 * The major version of the GLib library.
55 *
56 * An integer variable exported from the library linked
57 * against at application run time.
58 */
59  
60 /**
61 * GLIB_MAJOR_VERSION:
62 *
63 * The major version number of the GLib library.
64 *
65 * Like #glib_major_version, but from the headers used at
66 * application compile time, rather than from the library
67 * linked against at application run time.
68 */
69  
70 /**
71 * glib_minor_version:
72 *
73 * The minor version number of the GLib library.
74 *
75 * An integer variable exported from the library linked
76 * against at application run time.
77 */
78  
79 /**
80 * GLIB_MINOR_VERSION:
81 *
82 * The minor version number of the GLib library.
83 *
84 * Like #gtk_minor_version, but from the headers used at
85 * application compile time, rather than from the library
86 * linked against at application run time.
87 */
88  
89 /**
90 * glib_micro_version:
91 *
92 * The micro version number of the GLib library.
93 *
94 * An integer variable exported from the library linked
95 * against at application run time.
96 */
97  
98 /**
99 * GLIB_MICRO_VERSION:
100 *
101 * The micro version number of the GLib library.
102 *
103 * Like #gtk_micro_version, but from the headers used at
104 * application compile time, rather than from the library
105 * linked against at application run time.
106 */
107  
108 /**
109 * GLIB_CHECK_VERSION:
110 * @major: the major version to check for
111 * @minor: the minor version to check for
112 * @micro: the micro version to check for
113 *
114 * Checks the version of the GLib library that is being compiled
115 * against. See glib_check_version() for a runtime check.
116 *
117 * Returns: %TRUE if the version of the GLib header files
118 * is the same as or newer than the passed-in version.
119 */
120  
121 /**
122 * glib_binary_age:
123 *
124 * The binary age of the GLib library.
125 * Defines how far back backwards compatibility reaches.
126 *
127 * An integer variable exported from the library linked
128 * against at application run time.
129 */
130  
131 /**
132 * glib_interface_age:
133 *
134 * The interface age of the GLib library.
135 * Defines how far back the API has last been extended.
136 *
137 * An integer variable exported from the library linked
138 * against at application run time.
139 */
140  
141 const guint glib_major_version = GLIB_MAJOR_VERSION;
142 const guint glib_minor_version = GLIB_MINOR_VERSION;
143 const guint glib_micro_version = GLIB_MICRO_VERSION;
144 const guint glib_interface_age = GLIB_INTERFACE_AGE;
145 const guint glib_binary_age = GLIB_BINARY_AGE;
146  
147 /**
148 * glib_check_version:
149 * @required_major: the required major version
150 * @required_minor: the required minor version
151 * @required_micro: the required micro version
152 *
153 * Checks that the GLib library in use is compatible with the
154 * given version. Generally you would pass in the constants
155 * #GLIB_MAJOR_VERSION, #GLIB_MINOR_VERSION, #GLIB_MICRO_VERSION
156 * as the three arguments to this function; that produces
157 * a check that the library in use is compatible with
158 * the version of GLib the application or module was compiled
159 * against.
160 *
161 * Compatibility is defined by two things: first the version
162 * of the running library is newer than the version
163 * @required_major.required_minor.@required_micro. Second
164 * the running library must be binary compatible with the
165 * version @required_major.required_minor.@required_micro
166 * (same major version.)
167 *
168 * Returns: %NULL if the GLib library is compatible with the
169 * given version, or a string describing the version mismatch.
170 * The returned string is owned by GLib and must not be modified
171 * or freed.
172 *
173 * Since: 2.6
174 */
175 const gchar *
176 glib_check_version (guint required_major,
177 guint required_minor,
178 guint required_micro)
179 {
180 gint glib_effective_micro = 100 * GLIB_MINOR_VERSION + GLIB_MICRO_VERSION;
181 gint required_effective_micro = 100 * required_minor + required_micro;
182  
183 if (required_major > GLIB_MAJOR_VERSION)
184 return "GLib version too old (major mismatch)";
185 if (required_major < GLIB_MAJOR_VERSION)
186 return "GLib version too new (major mismatch)";
187 if (required_effective_micro < glib_effective_micro - GLIB_BINARY_AGE)
188 return "GLib version too new (micro mismatch)";
189 if (required_effective_micro > glib_effective_micro)
190 return "GLib version too old (micro mismatch)";
191 return NULL;
192 }