C Programming - Strings - Discussion

Comma operator during its scanning goes right to left and while at the rightmost it won't evaluate the rightmost then it will be scanning towards the left and evaluate the left then after goes to the right and evaluate the rightmost.

For this programme, in printf whatever you type between the " " it returns it....because there is no statements and conditions in this simple programme....to consider the comma operator....just follow the basic.

Comma operator has left to right associativity. only unary,ternary,assignment operators has right to left associativity.

eg:printf("%d",1,2,3,4);here since we have only one %d , output is 1.Here comma acts a seperator and no associativity plays role.

eg:printf("%d",(1,2,3,4));as comma has left to right associativity 4 is printed as output.

The same applies to strings.

eg:1 printf("India", "BIX\n"); ---> comma acts as seperator, prints India as output.

eg:2: printf(("India", "BIX\n"));---> comma's associativity rule prints BIX as output.

Comma operator always returns the right most value so the output of this question should be Bix.

No, we can't pass two strings in printf.

Comma operator has right to left associativity but here comma is not being operated because of a missing paranthesis (). printf simply prints the first string.

I got error on linux 64 bit compiler, it say's "too many arguments".

Can anyone help me?

Answer of this statement should be "India" because comma operator always returns rightmost operator, in the case of printf statement once comma is read then it will consider preceding things as variable or values for format specifier.

The comma operator has left to right associativity, but it returns the rightmost operand. So in the above question it will start evaluating from left to right and hence it will print "india".

In printf statement there is no format specifier like %s,%c,%d,etc, that's why it is printing the first letter i.e India.

India is the correct option, there are no comma concepts.