File: builtin_hash_intbig.py

package info (click to toggle)
giac 1.6.0.41%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 64,540 kB
  • sloc: cpp: 351,842; ansic: 105,138; python: 30,545; javascript: 8,675; yacc: 2,690; lex: 2,449; makefile: 1,243; sh: 579; perl: 314; lisp: 216; asm: 62; java: 41; sed: 16; csh: 7; pascal: 6
file content (13 lines) | stat: -rw-r--r-- 419 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
# test builtin hash function

print({1 << 66:1}) # hash big int
print({-(1 << 66):2}) # hash negative big int

# __hash__ returning a large number should be truncated
class F:
    def __hash__(self):
        return 1 << 70 | 1
print(hash(F()) != 0)

# this had a particular error with internal integer arithmetic of hash function
print(hash(6699999999999999999999999999999999999999999999999999999999999999999999) != 0)