7f9589922d
This fixes a flaw in the original implementation: the returned index is
actually useless to the caller.
This is because the index returned refers to the internal "candidate"
list. This list is dynamic, and may not have all of the input channels
(if they weren't ready according to chan.can_{recv,send}). That means
the index is not guaranteed to mean anything to the caller.
The fix introduced here is to return the index into the input slice
(recvs,sends) and an enum to specify which input slice that is.
If no selection was made, then (-1, .None) is returned to communicate as
much.
Signed-off-by: Jack Mordaunt <jackmordaunt.dev@gmail.com>
The Data-Oriented Language for Sane Software Development.
The Odin Programming Language
Odin is a general-purpose programming language with distinct typing, built for high performance, modern systems, and built-in data-oriented data types. The Odin Programming Language, the C alternative for the joy of programming.
Website: https://odin-lang.org/
package main
import "core:fmt"
main :: proc() {
program := "+ + * 😃 - /"
accumulator := 0
for token in program {
switch token {
case '+': accumulator += 1
case '-': accumulator -= 1
case '*': accumulator *= 2
case '/': accumulator /= 2
case '😃': accumulator *= accumulator
case: // Ignore everything else
}
}
fmt.printf("The program \"%s\" calculates the value %d\n",
program, accumulator)
}
Documentation
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