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/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef APR_VERSION_H
#define APR_VERSION_H
/**
* @file apr_version.h
* @brief APR Versioning Interface
*
* APR's Version
*
* There are several different mechanisms for accessing the version. There
* is a string form, and a set of numbers; in addition, there are constants
* which can be compiled into your application, and you can query the library
* being used for its actual version.
*
* Note that it is possible for an application to detect that it has been
* compiled against a different version of APR by use of the compile-time
* constants and the use of the run-time query function.
*
* APR version numbering follows the guidelines specified in:
*
* http://apr.apache.org/versioning.html
*/
/* The numeric compile-time version constants. These constants are the
* authoritative version numbers for APR.
*/
/** major version
* Major API changes that could cause compatibility problems for older
* programs such as structure size changes. No binary compatibility is
* possible across a change in the major version.
*/
#define APR_MAJOR_VERSION 1
/** minor version
* Minor API changes that do not cause binary compatibility problems.
* Reset to 0 when upgrading APR_MAJOR_VERSION
*/
#define APR_MINOR_VERSION 4
/** patch level
* The Patch Level never includes API changes, simply bug fixes.
* Reset to 0 when upgrading APR_MINOR_VERSION
*/
#define APR_PATCH_VERSION 6
/**
* The symbol APR_IS_DEV_VERSION is only defined for internal,
* "development" copies of APR. It is undefined for released versions
* of APR.
*/
/* #define APR_IS_DEV_VERSION */
/**
* Check at compile time if the APR version is at least a certain
* level.
* @param major The major version component of the version checked
* for (e.g., the "1" of "1.3.0").
* @param minor The minor version component of the version checked
* for (e.g., the "3" of "1.3.0").
* @param patch The patch level component of the version checked
* for (e.g., the "0" of "1.3.0").
* @remark This macro is available with APR versions starting with
* 1.3.0.
*/
#define APR_VERSION_AT_LEAST(major,minor,patch) \
(((major) < APR_MAJOR_VERSION) \
|| ((major) == APR_MAJOR_VERSION && (minor) < APR_MINOR_VERSION) \
|| ((major) == APR_MAJOR_VERSION && (minor) == APR_MINOR_VERSION && (patch) <= APR_PATCH_VERSION))
#if defined(APR_IS_DEV_VERSION) || defined(DOXYGEN)
/** Internal: string form of the "is dev" flag */
#define APR_IS_DEV_STRING "-dev"
#else
#define APR_IS_DEV_STRING ""
#endif
/* APR_STRINGIFY is defined here, and also in apr_general.h, so wrap it */
#ifndef APR_STRINGIFY
/** Properly quote a value as a string in the C preprocessor */
#define APR_STRINGIFY(n) APR_STRINGIFY_HELPER(n)
/** Helper macro for APR_STRINGIFY */
#define APR_STRINGIFY_HELPER(n) #n
#endif
/** The formatted string of APR's version */
#define APR_VERSION_STRING \
APR_STRINGIFY(APR_MAJOR_VERSION) "." \
APR_STRINGIFY(APR_MINOR_VERSION) "." \
APR_STRINGIFY(APR_PATCH_VERSION) \
APR_IS_DEV_STRING
/** An alternative formatted string of APR's version */
/* macro for Win32 .rc files using numeric csv representation */
#define APR_VERSION_STRING_CSV APR_MAJOR_VERSION ##, \
##APR_MINOR_VERSION ##, \
##APR_PATCH_VERSION
#ifndef APR_VERSION_ONLY
/* The C language API to access the version at run time,
* as opposed to compile time. APR_VERSION_ONLY may be defined
* externally when preprocessing apr_version.h to obtain strictly
* the C Preprocessor macro declarations.
*/
#include "apr.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* The numeric version information is broken out into fields within this
* structure.
*/
typedef struct {
int major; /**< major number */
int minor; /**< minor number */
int patch; /**< patch number */
int is_dev; /**< is development (1 or 0) */
} apr_version_t;
/**
* Return APR's version information information in a numeric form.
*
* @param pvsn Pointer to a version structure for returning the version
* information.
*/
APR_DECLARE(void) apr_version(apr_version_t *pvsn);
/** Return APR's version information as a string. */
APR_DECLARE(const char *) apr_version_string(void);
#ifdef __cplusplus
}
#endif
#endif /* ndef APR_VERSION_ONLY */
#endif /* ndef APR_VERSION_H */
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