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c37a357c13
This reverts commit443389effc. This reverts commitd94960f22e. Inclusion of header files must be explicit. Every file shall directly include what is necessary. https://github.com/include-what-you-use/include-what-you-use says: > When every file includes what it uses, then it is possible to edit any > file and remove unused headers, without fear of accidentally breaking > the upwards dependencies of that file. It also becomes easy to > automatically track and update dependencies in the source code. Though we don't use iwyu itself, the principle quoted above is a good thing that we can agree. Now that include guards were added to every and all of the headers inside of our project this changeset does not increase compile time, at least on my machine.
163 lines
4.4 KiB
C++
163 lines
4.4 KiB
C++
#ifndef RUBY3_ARITHMETIC_INT_H /*-*-C++-*-vi:se ft=cpp:*/
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#define RUBY3_ARITHMETIC_INT_H
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/**
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* @file
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* @author Ruby developers <ruby-core@ruby-lang.org>
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* @copyright This file is a part of the programming language Ruby.
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* Permission is hereby granted, to either redistribute and/or
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* modify this file, provided that the conditions mentioned in the
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* file COPYING are met. Consult the file for details.
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* @warning Symbols prefixed with either `RUBY3` or `ruby3` are
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* implementation details. Don't take them as canon. They could
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* rapidly appear then vanish. The name (path) of this header file
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* is also an implementation detail. Do not expect it to persist
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* at the place it is now. Developers are free to move it anywhere
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* anytime at will.
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* @note To ruby-core: remember that this header can be possibly
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* recursively included from extension libraries written in C++.
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* Do not expect for instance `__VA_ARGS__` is always available.
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* We assume C99 for ruby itself but we don't assume languages of
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* extension libraries. They could be written in C++98.
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* @brief Arithmetic conversion between C's `int` and Ruby's.
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*/
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#include "ruby/3/config.h"
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#include "ruby/3/arithmetic/fixnum.h"
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#include "ruby/3/arithmetic/intptr_t.h"
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#include "ruby/3/arithmetic/long.h"
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#include "ruby/3/attr/artificial.h"
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#include "ruby/3/attr/const.h"
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#include "ruby/3/attr/constexpr.h"
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#include "ruby/3/compiler_is.h"
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#include "ruby/3/dllexport.h"
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#include "ruby/3/special_consts.h"
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#include "ruby/3/value.h"
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#include "ruby/3/warning_push.h"
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#include "ruby/assert.h"
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#define RB_INT2NUM rb_int2num_inline
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#define RB_NUM2INT rb_num2int_inline
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#define RB_UINT2NUM rb_uint2num_inline
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#define FIX2INT RB_FIX2INT
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#define FIX2UINT RB_FIX2UINT
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#define INT2NUM RB_INT2NUM
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#define NUM2INT RB_NUM2INT
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#define NUM2UINT RB_NUM2UINT
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#define UINT2NUM RB_UINT2NUM
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/** @cond INTERNAL_MACRO */
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#define RB_FIX2INT RB_FIX2INT
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#define RB_NUM2UINT RB_NUM2UINT
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#define RB_FIX2UINT RB_FIX2UINT
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/** @endcond */
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RUBY3_SYMBOL_EXPORT_BEGIN()
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long rb_num2int(VALUE);
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long rb_fix2int(VALUE);
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unsigned long rb_num2uint(VALUE);
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unsigned long rb_fix2uint(VALUE);
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RUBY3_SYMBOL_EXPORT_END()
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RUBY3_ATTR_ARTIFICIAL()
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static inline int
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RB_FIX2INT(VALUE x)
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{
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/* "FIX2INT raises a TypeError if passed nil", says rubyspec. Not sure if
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* that is a desired behaviour but just preserve backwards compatilibily.
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*/
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#if 0
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RUBY3_ASSERT_OR_ASSUME(RB_FIXNUM_P(x));
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#endif
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long ret;
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if /* constexpr */ (sizeof(int) < sizeof(long)) {
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ret = rb_fix2int(x);
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}
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else {
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ret = RB_FIX2LONG(x);
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}
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return RUBY3_CAST((int)ret);
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}
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static inline int
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rb_num2int_inline(VALUE x)
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{
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long ret;
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if /* constexpr */ (sizeof(int) == sizeof(long)) {
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ret = RB_NUM2LONG(x);
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}
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else if (RB_FIXNUM_P(x)) {
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ret = rb_fix2int(x);
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}
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else {
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ret = rb_num2int(x);
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}
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return RUBY3_CAST((int)ret);
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}
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RUBY3_ATTR_ARTIFICIAL()
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static inline unsigned int
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RB_NUM2UINT(VALUE x)
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{
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unsigned long ret;
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if /* constexpr */ (sizeof(int) < sizeof(long)) {
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ret = rb_num2uint(x);
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}
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else {
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ret = RB_NUM2ULONG(x);
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}
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return RUBY3_CAST((unsigned int)ret);
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}
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RUBY3_ATTR_ARTIFICIAL()
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static inline unsigned int
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RB_FIX2UINT(VALUE x)
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{
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#if 0 /* Ditto for RB_FIX2INT. */
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RUBY3_ASSERT_OR_ASSUME(RB_FIXNUM_P(x));
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#endif
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unsigned long ret;
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if /* constexpr */ (sizeof(int) < sizeof(long)) {
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ret = rb_fix2uint(x);
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}
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else {
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ret = RB_FIX2ULONG(x);
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}
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return RUBY3_CAST((unsigned int)ret);
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}
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RUBY3_WARNING_PUSH()
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#if RUBY3_COMPILER_IS(GCC)
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RUBY3_WARNING_IGNORED(-Wtype-limits) /* We can ignore them here. */
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#elif RUBY3_HAS_WARNING("-Wtautological-constant-out-of-range-compare")
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RUBY3_WARNING_IGNORED(-Wtautological-constant-out-of-range-compare)
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#endif
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static inline VALUE
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rb_int2num_inline(int v)
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{
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if (RB_FIXABLE(v))
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return RB_INT2FIX(v);
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else
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return rb_int2big(v);
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}
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static inline VALUE
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rb_uint2num_inline(unsigned int v)
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{
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if (RB_POSFIXABLE(v))
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return RB_LONG2FIX(v);
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else
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return rb_uint2big(v);
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}
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RUBY3_WARNING_POP()
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#endif /* RUBY3_ARITHMETIC_INT_H */
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