Comma Operator in C

C Programming & Data Structures: Comma Operator in C
Topics discussed:
1. What is the Comma Operator?
2. Use of Comma Operator as the separator.
3. Use of Comma Operator as an operator.
4. Precedence of Comma Operator.
5. Examples based on Comma Operator.
6. Homework on Comma Operator.

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Axol x Alex Skrindo - You [NCS Release]

#CProgrammingByNeso #CProgramming #CommaOperator

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[C____KhurshedulAlam]

The output is : 50.
Thank you so much, sir, for your such kind of efforts. Your explanation is the best for me so far.

[purushothamchembeti]

ans: 50;
given num = (var=15, var+35), then initially var =15 was evaluated and the second operand becomes var+35 == 15+35 which results 50. now 50 will be printed.

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[Fred]

1:10 Yes, can be used as a seperator, not for pointers though, haven't seen a video where you teach pointers yet though so maybe you'll mention it there, it's a pitfall I've seen a lot of people make though so worth mentioning.

example:
int *a, b, c; // Only 'a' is a pointer the rest are ints
int *a, *b, *c; // All are pointers

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[TheSabarno]

Output = 50

num = (var=15, var+35),
i.e var =15 (First expression in the bracket and "assignment" operator takes precedence over "comma" operator, hence var is assigned a value of 15)
next:
var+35 = 15+35 i.e 50.
next:
num will be assigned the value of 50 as var=50 (rightmost operand within the bracket)

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[subendernath]

The output will be 50. Because ", " is used as operator and due to which the rightmost operand's value is considered which is var+35. and also var=15 is also evaluated but rejected at last due to this evaluation the var is initialized to 15.