volatile 源代码
volatile是一个特征修饰符(typespecifier).volatile的作用是作为指令关键字,确保本条指令不会因编译器的优化而省略,且要求每次直接读值。
void f () { __asm__ __volatile__ ("" : : ); }
/* * HP display types */ #ifndef __HPDISPLAYS_H__ #define __HPDISPLAYS_H__ /* allowed types for the gcid */ #define GCID_GATO…
#C Key Word #Wed Mar 29 21:58:48 CST 2006 continue=$CONTINUE register=$REGISTER int=$INT break=$BREAK typedef=$TYPEDEF unio…
/* * ANSI C stadard, section 3.5.3: "An object that has volatile-qualified * type may be modified in ways unknown to the impleme…
/* * ANSI C stadard, section 3.5.3: "An object that has volatile-qualified * type may be modified in ways unknown to the imple…