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| author | Alan Wu <XrXr@users.noreply.github.com> | 2021-12-09 13:38:20 -0500 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-12-09 13:38:20 -0500 |
| commit | 74159f7f3e58d8e5ef2e6ee430b7ffa2ade5d952 (patch) | |
| tree | 76799e24bd7f5bd960e9439970d7930443083848 /doc | |
| parent | b859397e1b25a3f7847a380e7dd7db62f94fbe66 (diff) | |
[DOC] Stop mentioning Qfalse==0 for C extensions
See [Feature #18397] for detail. Follow up for
b859397e1b25a3f7847a380e7dd7db62f94fbe66.
[ci skip]
Co-authored-by: Koichi Sasada <ko1@atdot.net>
Notes
Notes:
Merged: https://github.com/ruby/ruby/pull/5240
Merged-By: XrXr
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/extension.ja.rdoc | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/doc/extension.ja.rdoc b/doc/extension.ja.rdoc index 5087b6785a..3b68ec6cbc 100644 --- a/doc/extension.ja.rdoc +++ b/doc/extension.ja.rdoc @@ -617,12 +617,14 @@ C言語とRubyの間で情報を共有する方法について解説します． Qtrue :: Qfalse :: - 真偽値．QfalseはC言語でも偽とみなされます(つまり0)． + 真偽値．C言語から見た「true」と「false」． Qnil :: C言語から見た「nil」． +RTEST(obj)というマクロはobjがQfalseかQnilのとき0を返します． + === CとRubyで共有される大域変数 CとRubyで大域変数を使って情報を共有できます．共有できる大域 |