Compiling String Literals

Question

Why can two string literals separated by a space, a tab, or "\ n" be compiled without errors?

int main()
{
   char * a = "aaaa"  "bbbb";
} 

"aaaa" is char * "bbbb" - this is char *

There is no special concatenation rule for processing two string literals. And, obviously, the following code gives an error at compile time:

#include <iostream>
int main()
{
   char * a = "aaaa";
   char * b = "bbbb";
   std::cout << a b;
}

Is this concatenation common to all compilers? Where is the zero termination of "aaaa"? Is "aaaabbbb" a contiguous RAM block?

Answer 1

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Answer 2

char * a = "aaaa"  "bbbb";

- .

,

char * a = "aaaabbbb";

"aaaabbbb"

Answer 3

C ( ++). (.. a b).

, ++ 14 ( N3797), § 2.14.5:

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Answer 4

C ++ . :

"Some text..." "and more text"

:

"Some text...and more text"

:

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Answer 5

, , 6 ( ). "Hello," " world!" () "Hello, world!". ( ), ( ).

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