Compiling again for P17, with 0.18.0 and 0.17.2, the error messages point to
`gcd` function in both cases:
# 0.18.0 error message
generating parameters for P17
stack trace: (most recent call last)
twinprimes_ssozp17par5d3.nim(87)
twinprimes_ssozp17par5d3.nim(65) genPGparameters
lib/pure/math.nim(452) gcd
lib/pure/math.nim(452, 15) Error: interpretation requires too many iteratio
# 0.17.2 error message
generating parameters for P17
stack trace: (most recent call last)
twinprimes_ssozp17par5d3.nim(87)
twinprimes_ssozp17par5d3.nim(65) genPGparameters
lib/pure/math.nim(439) gcd
lib/pure/math.nim(439, 15) Error: interpretation requires too many
iterations
In both cases it points to the same line in `lib/pure/math.nim` (line 452 in
0.18.0 or 439 in 0.17.2):
proc gcd*[T](x, y: T): T =
## Computes the greatest common divisor of ``x`` and ``y``.
## Note that for floats, the result cannot always be interpreted as
## "greatest decimal `z` such that ``z*N == x and z*M == y``
## where N and M are positive integers."
var (x,y) = (x,y) # <---------------- this line is pointed to in both
cases
while y != 0:
x = x mod y
swap x, y
abs x
Changing `var (x,y) = (x,y)` to `var x = x; var y = y` or changing variable
names, in both cases, creates same results.
**Why does this line cause this compiler iteration problem?**
