If else Statement

if/else Statement

if statements are used to control the flow of code execution. This is best illustrated with an example:

int bAlpha = FALSE;
int bBravo = FALSE;
if (bAlpha)
{
     // statement 1 ...
}
else if (bBravo)
{
     // statement 2 ...
}
else
{
     // statement 3 ...
     // in this example, this is the code that is executed becase
     // both bAlpha and bBravo are FALSE
}

If bAlpha evaluates to TRUE then statement 1 will execute. If it evaluates to FALSE then it will skip to the next if else and evaluate bBravo. If neither bAlpha or bBravo evaluates to TRUE then statement 3 will execute as the default (catch-all).

if statements can also be used alone without if else or else statements:

int bCondition = TRUE;
if (bCondition) PrintString("TRUE!");

If bCondition evaluates to FALSE it will skip PrintString("TRUE!") and move on to the next line of code.

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 author: Ryan Hunt, editor: Charles Feduke