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Early ALGOL compilers supported a SWITCH data type which contains a list of "designational expressions". A GOTO statement could reference a switch variable and, by providing an index, branch to the desired destination. With experience it was realized that a more formal multi-way construct, with single point of entrance and exit, was needed.
The below discussion should rarely be relevant but is preserved for reference. A #switch can contain over 1,000–2,000 branches, but should be split to have less than 100 branches, in multiple or nested parts. In some cases, it might be possible to split into multiple #switch structures, such as when many cases use the same first letter.
switch The switch keyword is used in conjunction with case and default to create a switch statement, which evaluates a variable, matches its value to a specific case (including patterns), and executes the block of statements associated with that case. If no case matches the value, the optional block labelled by default is executed, if included.
Switch statements (or case statements, or multiway branches) compare a given value with specified constants and take action according to the first constant to match. There is usually a provision for a default action ("else", "otherwise") to be taken if no match succeeds. Switch statements can allow compiler optimizations, such as lookup tables.
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The #switch function selects between multiple alternatives based on an input string. {{#switch: test string | case1 = value for case 1 | ... | default value}} Equivalent to the switch statement found in some programming languages, it is a convenient way of dealing with multiple cases without having to chain lots of #if functions together ...
The regular Switch and Switch OLED share the same processor, the Nvidia Tegra X1 chip, providing identical overall performance. They offer the same frame rates and graphical capabilities, whether ...
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