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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 ...
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.
In some cases, it might be possible to split into multiple #switch structures, such as when many cases use the same first letter. Then, using {{padleft:| 1 |{{{value}}}}} can extract the first letter of {{{value}}} to be used in a higher #switch which branches by most-frequent letter, followed by all others at the bottom or "#default" branch ...
Optimizing compilers such as GCC or Clang may compile a switch statement into either a branch table or a binary search through the values in the cases. [6] A branch table allows the switch statement to determine with a small, constant number of instructions which branch to execute without having to go through a list of comparisons, while a ...
Example of branch table in Wikibooks for IBM S/360; Examples of, and arguments for, Jump Tables via Function Pointer Arrays in C/C++; Example code generated by 'Switch/Case' branch table in C, versus IF/ELSE. Example code generated for array indexing if structure size is divisible by powers of 2 or otherwise.
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HuffPost looked at how killers got their guns for the 10 deadliest mass shootings over the past 10 years. To come up with the list, we used Mother Jones’ database, which defines mass shootings as “indiscriminate rampages in public places” that kill three or more people.
Nelly Furtado is ignoring the popular "New Year, New Me" mantra!. On Sunday, Jan. 5, the singer, 46, shared two photos of herself on Instagram wearing a bright orange bikini alongside an inspiring ...