寄存器:寄存器的可用性Registers: Availability of Registers

ANSI 3.5.1 通过使用寄存器存储类说明符可将对象实际放置在寄存器中的范围ANSI 3.5.1 The extent to which objects can actually be placed in registers by use of the register storage-class specifier

编译器不接受对寄存器变量的用户请求。The compiler does not honor user requests for register variables. 相反,在进行优化时,它将自行做出选择。Instead, it makes it own choices when optimizing.

另请参阅See Also

实现定义的行为Implementation-Defined Behavior