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ruby--ruby/internal/serial.h

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add #include guard hack According to MSVC manual (*1), cl.exe can skip including a header file when that: - contains #pragma once, or - starts with #ifndef, or - starts with #if ! defined. GCC has a similar trick (*2), but it acts more stricter (e. g. there must be _no tokens_ outside of #ifndef...#endif). Sun C lacked #pragma once for a looong time. Oracle Developer Studio 12.5 finally implemented it, but we cannot assume such recent version. This changeset modifies header files so that each of them include strictly one #ifndef...#endif. I believe this is the most portable way to trigger compiler optimizations. [Bug #16770] *1: https://docs.microsoft.com/en-us/cpp/preprocessor/once *2: https://gcc.gnu.org/onlinedocs/cppinternals/Guard-Macros.html
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#ifndef INTERNAL_SERIAL_H /*-*-C-*-vi:se ft=c:*/
#define INTERNAL_SERIAL_H
/**
split internal.h into files One day, I could not resist the way it was written. I finally started to make the code clean. This changeset is the beginning of a series of housekeeping commits. It is a simple refactoring; split internal.h into files, so that we can divide and concur in the upcoming commits. No lines of codes are either added or removed, except the obvious file headers/footers. The generated binary is identical to the one before.
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* @file
Merge pull request #2991 from shyouhei/ruby.h Split ruby.h
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* @author Ruby developers <ruby-core@ruby-lang.org>
split internal.h into files One day, I could not resist the way it was written. I finally started to make the code clean. This changeset is the beginning of a series of housekeeping commits. It is a simple refactoring; split internal.h into files, so that we can divide and concur in the upcoming commits. No lines of codes are either added or removed, except the obvious file headers/footers. The generated binary is identical to the one before.
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* @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.
Merge pull request #2991 from shyouhei/ruby.h Split ruby.h
2020-04-08 00:28:13 -04:00
* @brief Internal header for rb_serial_t.
split internal.h into files One day, I could not resist the way it was written. I finally started to make the code clean. This changeset is the beginning of a series of housekeeping commits. It is a simple refactoring; split internal.h into files, so that we can divide and concur in the upcoming commits. No lines of codes are either added or removed, except the obvious file headers/footers. The generated binary is identical to the one before.
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*/
Merge pull request #2991 from shyouhei/ruby.h Split ruby.h
2020-04-08 00:28:13 -04:00
#include "ruby/3/config.h" /* for HAVE_LONG_LONG */
other minior internal header tweaks These headers need no rewrite. Just add some minor tweaks, like addition of #include lines. Mainly cosmetic. TIMET_MAX_PLUS_ONE was deleted because the macro was used from only one place (directly write expression there).
2019-12-03 00:47:38 -05:00
#include "ruby/defines.h" /* for LONG_LONG */
split internal.h into files One day, I could not resist the way it was written. I finally started to make the code clean. This changeset is the beginning of a series of housekeeping commits. It is a simple refactoring; split internal.h into files, so that we can divide and concur in the upcoming commits. No lines of codes are either added or removed, except the obvious file headers/footers. The generated binary is identical to the one before.
2019-11-29 01:18:34 -05:00
assume C99 Now that we no longer support old compilers, we can safely delete several obsolete #ifdef gurads. Also because (as of writing) it is impossible to compile the program using C++ compilers, lets just entirely prohibit __cplusplus to reduce # of LOCs. Note however that we still cannot eliminate __STDC_VERSION__ checks, because MSVC does not define it, saying its C99 support is partial. See also https://social.msdn.microsoft.com/Forums/vstudio/en-US/53a4fd75-9f97-48b2-aa63-2e2e5a15efa3
2019-12-02 00:48:42 -05:00
#ifndef HAVE_LONG_LONG
# error need C99+
split internal.h into files One day, I could not resist the way it was written. I finally started to make the code clean. This changeset is the beginning of a series of housekeeping commits. It is a simple refactoring; split internal.h into files, so that we can divide and concur in the upcoming commits. No lines of codes are either added or removed, except the obvious file headers/footers. The generated binary is identical to the one before.
2019-11-29 01:18:34 -05:00
#endif
assume C99 Now that we no longer support old compilers, we can safely delete several obsolete #ifdef gurads. Also because (as of writing) it is impossible to compile the program using C++ compilers, lets just entirely prohibit __cplusplus to reduce # of LOCs. Note however that we still cannot eliminate __STDC_VERSION__ checks, because MSVC does not define it, saying its C99 support is partial. See also https://social.msdn.microsoft.com/Forums/vstudio/en-US/53a4fd75-9f97-48b2-aa63-2e2e5a15efa3
2019-12-02 00:48:42 -05:00
typedef unsigned LONG_LONG rb_serial_t;
#define SERIALT2NUM ULL2NUM
#define PRI_SERIALT_PREFIX PRI_LL_PREFIX
#define SIZEOF_SERIAL_T SIZEOF_LONG_LONG
split internal.h into files One day, I could not resist the way it was written. I finally started to make the code clean. This changeset is the beginning of a series of housekeeping commits. It is a simple refactoring; split internal.h into files, so that we can divide and concur in the upcoming commits. No lines of codes are either added or removed, except the obvious file headers/footers. The generated binary is identical to the one before.
2019-11-29 01:18:34 -05:00
#endif /* INTERNAL_SERIAL_H */
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