Numeric Literals that include a comma

[Anitha Lingam]

Hi,

Numeric literals that include a comma, for example,
int x = 25,343; // Decimal
int y = 0x1,1; // Octal

The above lines doesn't compile because of the comma.

But,
int x = 0xa,b // Octal

doesnot give a compile time error. Why?

[Barry Gaunt]

int x = 0xa,b; // Octal

This is equivalent to:

int x = 0xa; // in fact it's Hexadecimal, not Octal. Value is 10 decimal.
int b; // if this is a member variable it defaults to having value 0
  

[Deepa Korecherla]

Originally posted by Ashwatha K:
Hi,

Numeric literals that include a comma, for example,
int x = 25,343; // Decimal
int y = 0x1,1; // Octal

The above lines doesn't compile because of the comma.

But,
int x = 0xa,b // Octal

doesnot give a compile time error. Why?

-----------------------------

In the line, int x= 25,343;
compiler assumes like this, x = 25 and assumes 343 as another var. which is not a legal variable name. same for the next line. learn about the legal var. names.
var. names can only start with _ or $ or any alphabet.but not number.