Atomic Builtins - Using the GNU Compiler Collection (GCC)

5.44 Built-in functions for atomic memory access The following builtins are intended to be compatible with those described in the Intel Itanium Processor-specific Application Binary Interface, section 7.4. As such, they depart from the normal GCC practice of using the “__builtin_” prefix, and further that they are overloaded such that they work on multiple types. The definition given in the Intel

[tyru]

> gcc が用意する atomic 操作の組み込み関数．__sync_fetch_and_add など

[mooz]

gcc が用意する atomic 操作の組み込み関数．__sync_fetch_and_add など．

[oza_x86]

gcc 組み込みの atomic 命令を実行する関数

[syuu1228]

4.2を前提としたコードを書く事はそうないと思うけど、参考になるな。覚えとこ。RT @_daiki: @mikana gcc 4.2以降ではbuitl-in関数として利用できますよ．