if proc

Format

• if( E ) Statement1
• else if( E2 ) Statement2
• else Statement3

If the expression E is true (non-zero) then execute Statement1. Otherwise, test E2, etc. Finally, if none of the expressions are true, execute Statement3. The else nodes are all optional.

Statement1, Statement2, and Statement3 may be a single statement or a code block with optional braces: {}.

if(T==1) world << "TRUE"
else world << "FALSE"

This will display “TRUE” if T has value 1, and “FALSE” otherwise.

See also