switch statement - определение. Что такое switch statement
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Что (кто) такое switch statement - определение


Switch statement         
SELECTION CONTROL MECHANISM IN PROGRAMMING LANGUAGES
Case statement; Switch case; Switch-case; Select case; Select statement; Inspect statement; Decode (Oracle); Fallthrough switch; Switch (programming); Fallthrough
In computer programming languages, a switch statement is a type of selection control mechanism used to allow the value of a variable or expression to change the control flow of program execution via search and map.
switch statement         
SELECTION CONTROL MECHANISM IN PROGRAMMING LANGUAGES
Case statement; Switch case; Switch-case; Select case; Select statement; Inspect statement; Decode (Oracle); Fallthrough switch; Switch (programming); Fallthrough
<programming> (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 (foo(x, y)) { case 1: printf("Hello "); /* fall through */ case 2: printf("Goodbye "); break; case 3: printf("Fish "); break; default: fprintf(stderr, "Odd foo value "); exit(1); } 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)
case statement         
SELECTION CONTROL MECHANISM IN PROGRAMMING LANGUAGES
Case statement; Switch case; Switch-case; Select case; Select statement; Inspect statement; Decode (Oracle); Fallthrough switch; Switch (programming); Fallthrough