Fails to print u32

[ianxek]

This fails

print <- "x", 3u32

[Ivo-Balbaert]

In the same way, a strange output Ϩ for the unsigned integer 1000
print <- 1000u, "\n" // => Ϩ (should be 1000)

[Ivo-Balbaert]

print <- 0xE0u

also doesn't print anything on Windows.
On my WSL Ubuntu, it gives:

*** stack smashing detected ***: terminated
./compexec.sh: line 6: 1724 Segmentation fault conec $1
Output:
Ϩ

[Ivo-Balbaert]

Also strange output here (from refexpr.html):

mut flags = 0xC0u
flags |= 0x01u          // is 0xC1u
print <- flags, "\n"    // => Á

[jondgoodwin]

Fixed.