if statement
| if statement | Selection statement |
statement := if ( condition ) statement | if ( condition ) statement else statement condition ::= expression | type-specifier-seq declarator = assignment-expr |
The if statement tests condition, and if it is true, executes the first statement. If condition is false, and an else part is present, the else statement is executed; if there is no else part, execution continues with the statement immediately after the end of the if statement. If condition contains a declaration, the declared name is in the scope of both the if and else statements.
Example
template<typename T>
T abs(T x)
{
if (x < T( ))
return -x;
else
return x;
}
See Also
expression, else, statement, Chapter 4
