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ruby--ruby/internal/inits.h
卜部昌平 4ff3f20540 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
2020-04-13 16:06:00 +09:00

51 lines
1.1 KiB
C

#ifndef INTERNAL_INITS_H /*-*-C-*-vi:se ft=c:*/
#define INTERNAL_INITS_H
/**
* @file
* @author Ruby developers <ruby-core@ruby-lang.org>
* @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.
* @brief Internal header aggregating init functions.
*/
/* class.c */
void Init_class_hierarchy(void);
/* dmyext.c */
void Init_enc(void);
void Init_ext(void);
/* file.c */
void Init_File(void);
/* gc.c */
void Init_heap(void);
/* localeinit.c */
int Init_enc_set_filesystem_encoding(void);
/* newline.c */
void Init_newline(void);
/* vm.c */
void Init_BareVM(void);
void Init_vm_objects(void);
/* vm_backtrace.c */
void Init_vm_backtrace(void);
/* vm_eval.c */
void Init_vm_eval(void);
/* vm_insnhelper.c */
void Init_vm_stack_canary(void);
/* vm_method.c */
void Init_eval_method(void);
/* inits.c */
void rb_call_inits(void);
#endif /* INTERNAL_INITS_H */