Whether all string literals are distinct (that is, are stored in nonoverlapping objects) is implementation-defined. The effect of attempting to modify a string literal is undefined.
Whether all string literals are distinct (that is, are stored in nonoverlapping objects) is implementation-defined. The effect of attempting to modify a string literal is undefined.
是否保持所有字符串文字量独立（就是说，被不重叠的存储到对象中）是由编译器定义的。尝试修改一个字符串文字量的效果是未定义的。