将 printf 语句分配给 int 变量

Question

See the following code:

int i={
          printf("c" "++")
       };

it prints c++ and returns 3 to i. how it is assigning 3 to i? need explanation!

Answer 1

printf returns the number of bytes written to stdout . "c++" is exactly three bytes long (not counting the null-terminator).

By the way, you really don't need to use the curly braces, you can simply do int i=printf("c" "++"); .