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version.h
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#ifndef RUBY_VERSION_H /*-*-C++-*-vi:se ft=cpp:*/ #define RUBY_VERSION_H 1 /** * @file * @author $Author$ * @date Wed May 13 12:56:56 JST 2009 * @copyright Copyright (C) 1993-2009 Yukihiro Matsumoto * @copyright Copyright (C) 2000 Network Applied Communication Laboratory, Inc. * @copyright Copyright (C) 2000 Information-technology Promotion Agency, Japan * @copyright This file is a part of the programming language Ruby. * Permission is hereby granted, to either redistribute and/or * modify this file, provided that the conditions mentioned in the * file COPYING are met. Consult the file for details. * * This file contains only * - never-changeable information, and * - interfaces accessible from extension libraries. * * Never try to check RUBY_VERSION_CODE etc in extension libraries, * check the features with mkmf.rb instead. */ /** * @name The origin. * * These information never change. Just written here to remember. * * @{ */ /** Author of this project. */ #define RUBY_AUTHOR "Yukihiro Matsumoto" /** Ruby's birth year. */ #define RUBY_BIRTH_YEAR 1993 /** Ruby's birth month. */ #define RUBY_BIRTH_MONTH 2 /** Ruby's birth day. */ #define RUBY_BIRTH_DAY 24 /** @} */ /** * @name The API version. * * API version is different from binary version. These numbers are for API * stability. When you have distinct API versions x and y, you cannot expect * codes targeted to x also works for y. * * However let us repeat here that it's a BAD idea to check * #RUBY_API_VERSION_CODE form extension libraries. Different API versions are * just different. There is no such thing like upper compatibility. * * @{ */ /** * Major version. This digit changes sometimes for various reasons, but that * doesn't mean a total rewrite. Practically when it comes to API versioning, * major and minor version changes are equally catastrophic. */ #define RUBY_API_VERSION_MAJOR 3 /** * Minor version. As of writing this version changes annually. Greater * version doesn't mean "better"; they just mean years passed. */ #define RUBY_API_VERSION_MINOR 1 /** * Teeny version. This digit is kind of reserved these days. Kept 0 for the * entire 2.x era. Waiting for future uses. */ #define RUBY_API_VERSION_TEENY 0 /** * This macro is API versions encoded into a C integer. * * @note Use mkmf. * @note Don't rely on it. */ #define RUBY_API_VERSION_CODE (RUBY_API_VERSION_MAJOR*10000+RUBY_API_VERSION_MINOR*100+RUBY_API_VERSION_TEENY) /** @} */ #ifdef RUBY_EXTERN /* Internal note: this file could be included from verconf.mk _before_ * generating config.h, on Windows. The #ifdef above is to trick such * situation. */ RBIMPL_SYMBOL_EXPORT_BEGIN() /** * @name Interfaces from extension libraries. * * Before using these infos, think thrice whether they are really * necessary or not, and if the answer was yes, think twice a week * later again. * * @{ */ /** API versions, in { major, minor, teeny } order. */ RUBY_EXTERN const int ruby_api_version[3]; /** * Stringised version. * * @note This is the runtime version, not the API version. For instance it * was `"2.5.9"` when ::ruby_api_version was `{ 2, 5, 0 }`. */ RUBY_EXTERN const char ruby_version[]; /** Date of release, in a C string. */ RUBY_EXTERN const char ruby_release_date[]; /** * Target platform identifier, in a C string. * * @note Seasoned UNIX programmers should beware that this "platform * identifier" is our invention; not always identical to so-called * target triplets that GNU systems use. For instance on @shyouhei's * machine, ::ruby_platform is `"x64_64-linux"` while its target triplet * is `x86_64-pc-linux-gnu`. * @note Note also that we support Windows. */ RUBY_EXTERN const char ruby_platform[]; /** * This is a monotonic increasing integer that describes specific "patch" * level. You can know the exact changeset your binary is running by this info * (and ::ruby_version), unless this is -1. -1 means there is no release yet * for the version; ruby is actively developed. 0 means the initial GA version. */ RUBY_EXTERN const int ruby_patchlevel; /** * This is what `ruby -v` prints to the standard error. Something like: * `"ruby 2.5.9p229 (2021-04-05 revision 67829) [x86_64-linux]"` */ RUBY_EXTERN const char ruby_description[]; /** Copyright notice. */ RUBY_EXTERN const char ruby_copyright[]; /** * This is just `"ruby"` for us. But different implementations can have * different strings here. */ RUBY_EXTERN const char ruby_engine[]; /** @} */ RBIMPL_SYMBOL_EXPORT_END() #endif #endif