Why does C need “struct” keyword and not C++?

Question

I\'ve always been a little confused about what\'s going on here:

#include 

int main() {  
    timeval tv;
    tv.tv_sec = 1;

    for (;;) {
         


        

Answer 1

I would say it's a design decision of both languages.

Structs in C are just structured records and have different usage then built-in type.

C++ has ctors and operator overloads and so they act as types.

struct foo x;         // create a structure of pattern foo
typedef foo foo_type; // "define" a type
foo_type x;           // create an instance of type foo_type

C++:

foo x; // create an instance of type foo

As a side-note, struct foo is still allowed in C++. struct foo is easier to parse then typedef'dfoo as the name-lookup is simpler.