plzzz explain me this stuff?

[chaitrali1993]

main()
{
void swap();
int x=10,y=8;
swap(&x,&y);
printf("x=%d y=%d",x,y);
}
void swap(int *a, int *b)
{
*a ^= *b, *b ^= *a, *a ^= *b;
}
Answer:
x=10 y=8

[donbock]

Can you tell me what ^= does?
Can you tell me what the commas do in the last line of code?

[chaitrali1993]

i am asking u same :(

[donbock]

Please refer to the rules regarding Posting Homework or Coursework Questions and Answers. I don't think I'm permitted to merely give you the answer. I can walk you through it, but you need to be actively involved.

[weaknessforcats]

What programming language is this?

If the answer is x=10 and y = 8 and at the beginning x =10 and y=8, then this code doesn't work.

[donbock]

Perhaps you meant the printed result is "x=8, y=10".

General problems with your code that don't actually involve its function.

• Function main should return int. This means you need a return statement at the end of main.
• The declaration of swap should be before the beginning of main; and it should be a function prototype that specifies the types of the arguments.
• The printf format string should end with a newline because stdout is typically a buffered stream.