how does this initialisation in c works?

Question

int a=3,1; 
int b=(5,4);

I am a beginner in c and I noticed in a book this type of initialization . what does this initialisation mean?

`int a=3,1;` is not even valid C code, since `=` has higher precedence than `,`. — Lundin, Jan 26 '16 at 10:54
[What does the comma operator `,` do in C?](http://stackoverflow.com/questions/52550/what-does-the-comma-operator-do-in-c). — Lundin, Jan 26 '16 at 10:56

score 0 · Accepted Answer · answered Jan 26 '16 at 10:28

0

int b = (5,4) will first evaluate 5 then 4. The last thing that is evaluated will be assigned to the variable. For example

int b = (5,4,3,2,1)

in this case the value of b will be 1.

answered Jan 26 '16 at 10:28

Claudio Cortese

then what is the use of that previous four numbers?? – Boyka Feb 08 '16 at 14:15

1 Answers1