ruby.git/include/ruby/missing.h, branch v3_0_4 The Ruby Programming Language sed -i 's|ruby/impl|ruby/internal|' 2020-05-11T00:24:08+00:00 卜部昌平 shyouhei@ruby-lang.org 2020-05-08T09:31:09+00:00 9e41a75255d15765648279629fd3134cae076398 To fix build failures. 
To fix build failures.
sed -i s/RUBY3/RBIMPL/g 2020-05-11T00:24:08+00:00 卜部昌平 shyouhei@ruby-lang.org 2020-05-04T06:52:56+00:00 97672f669af53c41b094772559030195787406be Devs do not love "3". The only exception is RUBY3_KEYWORDS in parse.y, which seems unrelated to our interests. 
Devs do not love "3".  The only exception is RUBY3_KEYWORDS in parse.y,
which seems unrelated to our interests.
sed -i s|ruby/3|ruby/impl|g 2020-05-11T00:24:08+00:00 卜部昌平 shyouhei@ruby-lang.org 2020-05-04T06:35:26+00:00 d7f4d732c199df24620a162372c71ee83ed21e62 This shall fix compile errors. 
This shall fix compile errors.
add #include guard hack 2020-04-13T07:06:00+00:00 卜部昌平 shyouhei@ruby-lang.org 2020-04-10T05:11:40+00:00 4ff3f205408ff8bb413d69151105d301858136ba 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 
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
Merge pull request #2991 from shyouhei/ruby.h 2020-04-08T04:28:13+00:00 卜部昌平 shyouhei@ruby-lang.org 2020-04-08T04:28:13+00:00 9e6e39c3512f7a962c44dc3729c98a0f8be90341 Split ruby.h 
Split ruby.h
 include/ruby/missing.h: defined(__cplusplus) before using __cplusplus 2018-06-05T14:16:50+00:00 ngoto ngoto@b2dd03c8-39d4-4d8f-98ff-823fe69b080e 2018-06-05T14:16:50+00:00 b7595f2c2ec14389170808dfb36b1d99c9d0e899 * include/ruby/missing.h (isinf, isnan): For non-C++ programs, defined(__cplusplus) may be needed before using __cplusplus. [Bug #14816] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63572 b2dd03c8-39d4-4d8f-98ff-823fe69b080e 
* include/ruby/missing.h (isinf, isnan): For non-C++ programs,
  defined(__cplusplus) may be needed before using __cplusplus.
  [Bug #14816]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63572 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
`int isnan(double)` is a POSIXism 2018-06-05T06:50:20+00:00 shyouhei shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e 2018-06-05T06:50:20+00:00 b5d6db65b49528c45cdfa75200dc8013d332b0db - `isnan` is something relatively new. We need to provide one for those systems without it. However: - X/Open defines `int isnan(double)`. Note the `int`. - C99 defines `isnan(x)` to be a macro. - C++11 nukes them all, undefines all the "masking macro"s, and defines its own `bool isnan(double)`. Note the `bool`. - In C++, `int isnan(double)` and `bool isnan(double)` are incompatible. - So the mess. [Bug #14816][ruby-core:87364] further reading: https://developers.redhat.com/blog/2016/02/29/why-cstdlib-is-more-complicated-than-you-might-think/ git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63571 b2dd03c8-39d4-4d8f-98ff-823fe69b080e 
- `isnan` is something relatively new.  We need to provide one for
  those systems without it.  However:
- X/Open defines `int isnan(double)`. Note the `int`.
- C99 defines `isnan(x)` to be a macro.
- C++11 nukes them all, undefines all the "masking macro"s, and
  defines its own `bool isnan(double)`.  Note the `bool`.
- In C++, `int isnan(double)` and `bool isnan(double)` are
  incompatible.
- So the mess.

[Bug #14816][ruby-core:87364]
further reading: https://developers.redhat.com/blog/2016/02/29/why-cstdlib-is-more-complicated-than-you-might-think/


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63571 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Fix duplicated HAVE_NAN 2018-01-27T04:14:26+00:00 kazu kazu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e 2018-01-27T04:14:26+00:00 ef83b306e2456d005df5ac4a81c9b22126c8b6e6 And remove redundant `HAVE_*` macros, and use `USE_RB_*` macros instead. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62067 b2dd03c8-39d4-4d8f-98ff-823fe69b080e 
And remove redundant `HAVE_*` macros,
and use `USE_RB_*` macros instead.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62067 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
need to declare the prototype of nan() if missing 2018-01-26T16:38:38+00:00 usa usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e 2018-01-26T16:38:38+00:00 d2bd7d7b9823cab4bffb7e43a66361f93fcfb461 * include/ruby/missing.h (nan): need to declare the prototype of nan() if missing. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62061 b2dd03c8-39d4-4d8f-98ff-823fe69b080e 
* include/ruby/missing.h (nan): need to declare the prototype of nan() if
  missing.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62061 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
INFINITY is float. That of double is HUGE_VAL. 2018-01-19T01:45:36+00:00 shyouhei shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e 2018-01-19T01:45:36+00:00 3ca0948f68d1055cd980992dcb68deced0f4d704 It seems HUGE_VAL is already used. Why not eliminate INTINITY. NAN is also float. That of double is called nan(). This is also fixed. Signed-off-by: Urabe, Shyouhei <shyouhei@ruby-lang.org> git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61938 b2dd03c8-39d4-4d8f-98ff-823fe69b080e 
It seems HUGE_VAL is already used. Why not eliminate INTINITY.
NAN is also float. That of double is called nan(). This is also
fixed.

Signed-off-by: Urabe, Shyouhei <shyouhei@ruby-lang.org>

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61938 b2dd03c8-39d4-4d8f-98ff-823fe69b080e