[1] : The Free On-line Dictionary of Computing (27 SEP 03)

switch statement
     
         or case statement, multi-way branch a
        construct found in most high-level languages for selecting
        one of several possible blocks of code or branch destinations
        depending on the value of an expression.  an example in c is
     
        	switch foox, y
        	
        	case 1:  printf"hello\n";	/ fall through /
        	case 2:  printf"goodbye\n"; break;
        	case 3:  printf"fish\n"; break;
        	default: fprintfstderr, "odd foo value\n"; exit1;
        	
     
        the break statements cause execution to continue after the
        whole switch statemetnt.  the lack of a break statement after
        the first case means that execution will fall through into
        the second case.  since this is a common programming error you
        should add a comment if it is intentional.
     
        if none of the explicit cases matches the expression value
        then the optional default case is taken.
     
        a similar construct in some functional languages returns the
        value of one of several expressions selected according to the
        value of the first expression.  a distant relation to the
        modern switch statement is fortran's computed goto.
     
        1997-01-30
     
     
see also:
high-level languages c  case 1: printf"hello\n"; / fall through / case 2: printf"goodbye\n"; break; case 3: printf"fish\n"; break; default: fprintfstderr, "odd foo value\n"; exit1;  fall through functional languages fortran 
computed goto 

Statement >> S Words
Statement, definition of term: Statement
statement_pag1.html

Switch >> S Words
Switch, definition of term: Switch
switch_pag1.html

Switch Back >> S Words
Switch Back, definition of term: Switch Back
switch+back_pag1.html

Switch Over >> S Words
Switch Over, definition of term: Switch Over
switch+over_pag1.html

Toggle Switch >> T Words
Toggle Switch, definition of term: Toggle Switch
toggle+switch_pag1.html

Selector Switch >> S Words
Selector Switch, definition of term: Selector Switch
selector+switch_pag1.html

Dip Switch >> D Words
Dip Switch, definition of term: Dip Switch
dip+switch_pag1.html

Ignition Switch >> I Words
Ignition Switch, definition of term: Ignition Switch
ignition+switch_pag1.html

Safety Switch >> S Words
Safety Switch, definition of term: Safety Switch
safety+switch_pag1.html

Scram Switch >> S Words
Scram Switch, definition of term: Scram Switch
scram+switch_pag1.html

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