c++ - 在 C++11 中，原始字符串文字可以有多行吗？

Question

这在 C++11 下合法吗？

string s = R"(This is the first line
And this is the second line)";

...等价于:

string s = "This is the first line\nAnd this is the second line";

Answer 1

是的，这是完全有效的。见 here .

另外，来自(草案)标准 2.14.5/4:

A source-file new-line in a raw string literal results in a new-line in the resulting execution string-literal. Assuming no whitespace at the beginning of lines in the following example, the assert will succeed:

const char *p = R"(a\
b
c)";
assert(std::strcmp(p, "a\\\nb\nc") == 0);