How To Use Comma Operator In C

In c and c comma can be used in two contexts.

How to use comma operator in c. The comma operator is a binary operator that evaluates its first operand and then discards the result then evaluates the second operand and returns the value. While declaration multiple variables and providing multiple arguments in a function comma works as a separator. There is a sequence point between these evaluations. In a c c program comma is used in two contexts. The comma operator allows us to place one or more expression where c syntax allows only one expression.

Comma works as an operator in program 2. In c programming language comma works as a separator and an operator too and its behaviour is little different according to the place where it is used. Today i am going to discuss about comma operator. Comma as an operator. The value of a comma separated list of expressions is the value of the right most expre.

Then in c programming either one of the operands is a floating point number a b 2 5 a d 2 5 c b 2 5 both operands are integers c d 2. Suppose a 5 0 b 2 0 c 5 and d 2. When a 9 is divided by b 4 the remainder is 1. Each expression must be separated using the comma and are evaluated from left to right. Precedence of comma operator is least in operator precedence table.

The comma operator represented by the token is a binary operator that evaluates its first operand and discards the result it then evaluates the second operand and returns this value and type. In the c and c programming languages the comma operator represented by the token is a binary operator that evaluates its first operand and discards the result and then evaluates the second operand and returns this value and type. The value of rightmost expression becomes the value of the overall expression. In the previous section of operator and expressions i had discussed about sizeof operator in c. The operator can only be used with integers.

See this for more details. 1 a separator 2 an operator. 1 comma as separator. Comma operator in programming languages like c c is a binary operator it is represented by token.