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- discard """
- output: '''
- papbpcpdpe7
- '''
- """
- block genericprocvar:
- proc foo[T](thing: T) =
- discard thing
- var a: proc (thing: int) {.nimcall.} = foo[int]
- block tprocvar2:
- proc pa() {.cdecl.} = write(stdout, "pa")
- proc pb() {.cdecl.} = write(stdout, "pb")
- proc pc() {.cdecl.} = write(stdout, "pc")
- proc pd() {.cdecl.} = write(stdout, "pd")
- proc pe() {.cdecl.} = write(stdout, "pe")
- const algos = [pa, pb, pc, pd, pe]
- var x: proc (a, b: int): int {.cdecl.}
- proc ha(c, d: int): int {.cdecl.} =
- echo(c + d)
- result = c + d
- for a in items(algos):
- a()
- x = ha
- discard x(3, 4)
- block tprocvars:
- proc doSomething(v: int, x: proc(v:int):int): int = return x(v)
- proc doSomething(v: int, x: proc(v:int)) = x(v)
- doAssert doSomething(10, proc(v: int): int = return v div 2) == 5
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