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Swift Arrays and Parallel Execution

Arrays of values can be declared using the [] suffix. Following is an example of an array of strings:

string pets[] = ["shane", "noddy", "leo"];

An array may be mapped to a collection of files, one element per file, by using a different form of mapping expression. For example, the filesys_mapper maps all files matching a particular unix glob pattern into an array:

file frames[] <filesys_mapper; pattern="*.jpg">;

The foreach construct can be used to apply the same block of code to each element of an array:

foreach f,ix in frames {
output[ix] = rotate(f, 180);}

Sequential iteration can be expressed using the iterate construct:

step[0] = initialCondition();
iterate ix {
step[ix] = simulate(step[ix-1]);

This fragment will initialise the 0-th element of the step array to some initial condition, and then repeatedly run the simulate
procedure, using each execution’s outputs as input to the next step.


In this page (written and validated by ) you learned about Swift Arrays and Parallel Execution . What's Next? If you are interested in completing Swift tutorial, your next topic will be learning about: Swift Associative Arrays.

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