Loop structures: Difference between revisions

=={{header|FreeBASIC}}==

<h3>[[While_loop|While..Wend]]</h3>

Executes a block of statements while a condition is met.<br>

<syntaxhighlight lang="vbnet">While [ condition ]

[ statement block ]

Wend</syntaxhighlight>

<h3>[[For_loop|For..Next]]</h3>

Executes a block of statements while an iterator is less than or greater than an expression.<br>

<syntaxhighlight lang="vbnet">For iterator [ As datatype ] = startvalue To endvalue [ Step stepvalue ]

[ statement block ]

Next [ iterator ]

</syntaxhighlight>

<h3>[[While_loop|Do..Loop]]</h3>

Executes a block of statements while or until a condition is met.

<syntaxhighlight lang="vbnet">Do [ { Until | While } condition ]

[ statement block ]

Loop</syntaxhighlight>

or

<syntaxhighlight lang="vbnet">Do

[ statement block ]

Loop [ { Until | While } condition ]

</syntaxhighlight>

<h3>Intra-loop control</h3>

Continue While, Continue For and Continue Do

Prematurely re-enters a loop.<br>

<syntaxhighlight lang="vbnet">Continue {Do | For | While}</syntaxhighlight>

Exit While, Exit For and Exit Do

Prematurely breaks out of a loop.

<syntaxhighlight lang="vbnet">Exit {Do | For | While | Select }</syntaxhighlight>

<syntaxhighlight lang="vbnet">Exit {Sub | Function | Operator | Constructor | Destructor | Property }</syntaxhighlight>

<syntaxhighlight lang="vbnet">Exit {Do [, Do [ , ...] ] |

For [, For [ , ...] ] |

While [, While, [...] ] |

Select [, Select [ , ...] ] }</syntaxhighlight>