上面的描述与实验结果一致。
而7楼的描述理解起来,与实验结果不一致。
本人感觉目前的编译器应该都是遵循C89的
The compilers from IAR Systems adhere to a freestanding environment implementation of the ISO/IEC 9899:1990 Programming Languages C standard, changed by Amendment 1:1995, Technical corrigendum 1:1994, and Technical corrigendum 2:1996.
We supply some of the functionality of the ISO/IEC 9899:1999 Programming Languages C as well.