Comma Operator ","

• The expression

expr1, expr2, ..., exprn

can be used in places where only one expression is logically allowed. The expr1, expr2, and so on are evaluated in turn, the value of the whole expression is the value of exprn.

• Example

for(i=0,j=5; i<j; ++i,--j)

printf("%d %d\n", i, j)

prints

0 5

1 4

2 3

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