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c-doubt

modmsrec Posted: Sat Jul 12, 2003 7:56 am

Joined: 12 Jul 2003

Posts: 1

c-doubt

hi guys
y does a>b:a=100:(b=200); does not give an error &
a>b:(a=100):b=200;gives an error of lvalue required.

bye

tej_is_here Posted: Mon Jul 21, 2003 12:03 am

Joined: 21 Jul 2003

Posts: 1

c-doubt

Hello,

Did u mean to say
1) a>b ? a=100:(b=200); does not give an error &
2) a>b ? (a=100):b=200; does give an error of lvalue required ?
If so,
In the first case,

a & b are compared & depending on its truth value a=100 or b=200 is evaluated. here a=100 & b=200 are considered as 2 simple statements.The parenthesis covering b=200 indicated that b=200 is a single simple stmt.

But where as in second case,

first a & b are compared and depending on its truth value 2 simple stmts ( a=100 or b) is evaluated. but then, the whole conditional stmt at LHS is being assigned a value 200. But the stmt at LHS (a>b ? (a=100):b) is not a variable, so it flags an error saying a location value is required on the LHS.

Regards,
Tejaswinee.
>hi guys>y does a>b:a=100:(b=200); does not give an error &>a>b:(a=100):b=200;gives an error of lvalue required.
>bye

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