fall through definition of fall through in the Free Online Encyclopedia.

(programming)

fall through - (The American misspelling "fall thru" is also common)

1. To exit a loop by exhaustion, i.e. by having fulfilled its exit condition rather than via a break or exception condition that exits from the middle of it. This usage appears to be *really* old, dating from the 1940s and 1950s.

2. To fail a test that would have passed control to a subroutine or some other distant portion of code.

3. In C, "fall-through" occurs when the flow of execution in a switch statement reaches a "case" label other than by jumping there from the switch header, passing a point where one would normally expect to find a "break". A trivial example:

switch (colour) case GREEN: do_green

The effect of the above code is to "do_green()" when colour is "GREEN", "do_red()" when colour is "RED", "do_blue()" on any other colour other than "PINK", and (and this is the important part) "do_pink()" __and then__ "do_red()" when colour is "PINK". Fall-through is considered harmful by some, though there are contexts (such as the coding of state machines) in which it is natural; it is generally considered good practice to include a comment highlighting the fall-through where one would normally expect a break. See also Duff's Device.

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No references found	Falkirk Falkland Current Falkland Islands Falkland Islands War Falkland Islands, Battle of 1914 Falkland, Lucius Cary, 2d Viscount Falkner, William Falköping fall fall back fall block Fall Creek Falls State Resort Park Fall Creek State Recreation Area fall forward Fall Gelb fall line Fall of a Body Fall of Constantinople fall of ground fall over Fall River Fall River County Fall River Heritage State Park Fall River State Park fall streaks fall through fall thru fall time fall velocity Fall Webworm Moth fall wind Fall, Albert Bacon Fall, The fall-pipe fall-streak hole Falla Falla, Manuel de fallacy fallacy, formal and informal Fallada, Hans Fallas, Luis Carlos fallaway section fallback fallback switch fallback system fallback/fall forward fallen arches Fallen Timbers Fallen Timbers, Battle faller Fallières, Armand	Fall River County, SD Fall River County, South Dakota Fall River Decorative Arts Fall River Educator's Association Fall River Entrance Fall River Heritage State Park Fall River Housing Authority Fall River Mills Fall River Muncipal Credit Union Fall River Office of Economic Development Fall River Police Department Fall River Public Schools Fall River Rural Electric Cooperative Fall River State Park Fall River Visitors Center Fall River Wild Rice fall short fall short fall short fall short fall short fall short of fall short of fall short of goal fall short of the goal fall short of the record fall sick Fall streaks Fall Symposium Series fall through fall through the cracks fall through the cracks fall through the cracks fall through the cracks fall through the cracks fall through the floor fall through the net fall through the net fall through the net fall through the net fall through the net fall thru Fall time Fall time fall to fall to fall to fall to fall to fall to knees fall to knees fall to knees fall to knees fall to lot fall to lot fall to lot fall to lot fall to lot Fall to Pieces Fall to Pieces

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Fall River County, SD
Fall River County, South Dakota
Fall River Decorative Arts
Fall River Educator's Association
Fall River Entrance
Fall River Heritage State Park
Fall River Housing Authority
Fall River Mills
Fall River Muncipal Credit Union
Fall River Office of Economic Development
Fall River Police Department
Fall River Public Schools
Fall River Rural Electric Cooperative
Fall River State Park
Fall River Visitors Center
Fall River Wild Rice
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