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discard """
sortoutput: true
output: '''
0
1
2
3
4
5
6
7
8
9
Hello 1
Hello 2
Hello 3
Hello 4
Hello 5
Hello 6
'''
"""
# bug #2287
import threadPool
# If `nums` is an array instead of seq,
# NONE of the iteration ways below work (including high / len-1)
let nums = @[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
proc log(n:int) =
echo n
proc main =
parallel:
for n in nums: # Error: cannot prove: i <= len(nums) + -1
spawn log(n)
#for i in 0 ..< nums.len: # Error: cannot prove: i <= len(nums) + -1
#for i in 0 .. nums.len-1: # WORKS!
#for i in 0 ..< nums.len: # WORKS!
# spawn log(nums[i])
# Array needs explicit size to work, probably related to issue #2287
#const a: array[0..5, int] = [1,2,3,4,5,6]
#const a = [1,2,3,4,5,6] # Doesn't work
const a = @[1,2,3,4,5,6] # Doesn't work
proc f(n: int) = echo "Hello ", n
proc maino =
parallel:
# while loop doesn't work:
var i = 0
while i < a.high:
#for i in countup(0, a.high-1, 2):
spawn f(a[i])
spawn f(a[i+1])
i += 2
maino() # Doesn't work outside a proc
when true:
main()
block two:
proc f(a: openArray[int]) =
discard
proc main() =
var a: array[0..9, int] = [0,1,2,3,4,5,6,7,8,9]
parallel:
spawn f(a[0..2])
main()
|
