C sizeof char pointer

Question

Why is size of this char variable equal 1?

int main(){

char s1[] = \"hello\";

fprintf(stderr, \"(*s1) : %i\\n\", sizeof(*s1) )    // prints out 1

}
         


        

Answer 1

sizeof(*s1) means its denotes the size of data types which used. In C there are 1 byte used by character data type that means sizeof(*s1) it directly noticing to the character which consumed only 1 byte.

If there are any other data type used then the **sizeof(*data type)** will be changed according to type.