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Floating inputs for round() should return a Floating output when ndigit is 0 (#217)

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* Fix round for floating inputs

* Refactor integer inputs

* some fix

---------

Co-authored-by: blueloveTH <blueloveth@foxmail.com>
This commit is contained in:
Anurag Bhat 2024-02-27 08:48:21 +05:30 committed by GitHub
parent d8fb555258
commit 5100f4e454
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GPG Key ID: B5690EEEBB952194
2 changed files with 14 additions and 9 deletions
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15
src/pocketpy.cpp
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@ -135,18 +135,15 @@ void init_builtins(VM* _vm) {
return VAR(MappingProxy(mod));
});
_vm->bind(_vm->builtins, "round(x, ndigits=0)", [](VM* vm, ArgsView args) {
_vm->bind(_vm->builtins, "round(x, ndigits=None)", [](VM* vm, ArgsView args) {
if(is_int(args[0])) return args[0];
f64 x = CAST(f64, args[0]);
f64 offset = x >= 0 ? 0.5 : -0.5;
if(args[1] == vm->None) return VAR((i64)(x + offset));
int ndigits = CAST(int, args[1]);
if(ndigits == 0){
return x >= 0 ? VAR((i64)(x + 0.5)) : VAR((i64)(x - 0.5));
}
if(ndigits < 0) vm->ValueError("ndigits should be non-negative");
if(x >= 0){
return VAR((i64)(x * std::pow(10, ndigits) + 0.5) / std::pow(10, ndigits));
}else{
return VAR((i64)(x * std::pow(10, ndigits) - 0.5) / std::pow(10, ndigits));
}
// ndigits > 0
return VAR((i64)(x * std::pow(10, ndigits) + offset) / std::pow(10, ndigits));
});
_vm->bind_func<1>(_vm->builtins, "abs", [](VM* vm, ArgsView args) {

8
tests/70_builtins.py
View File

@ -1,7 +1,12 @@
assert round(23.2) == 23
assert round(23.8) == 24
assert round(-23.2) == -23
assert round(-23.2, 0) == -23.0
assert round(-23.8) == -24
assert round(23.2, 0) == 23.0
assert round(23.8, 0) == 24.0
assert round(-23.2, 0) == -23.0
assert round(-23.8, 0) == -24.0
# round with precision
assert round(23.2, 1) == 23.2
assert round(23.8, 1) == 23.8
@ -17,6 +22,9 @@ assert round(-3.14159, 3) == -3.142
assert round(-3.14159, 2) == -3.14
assert round(-3.14159, 1) == -3.1
assert round(-3.14159, 0) == -3
assert round(11, 0) == 11
assert round(11, 1) == 11
assert round(11, 234567890) == 11
a = [1,2,3,-1]
assert sorted(a) == [-1,1,2,3]