Bug #12716: Array#values_at fails for large argument size

• Status: Rejected
• Assignee: -
• Target version: -
• ruby -v: ruby 2.2.1p85 (2015-02-26 revision 49769) [i686-linux]
• Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN

[v0dro (Sameer Deshmukh)]

Say I have this Array:

a = [1] * 140_000

Now, I call Array#values_at in this way:

a.values_at(*[1,2,3]*100_000)

I get this error:

Exception: SystemStackError: stack level too deep
--
0: (pry):6:in `__pry__'

[v0dro (Sameer Deshmukh)]

Say I have this Array:

a = [1] * 400_000

Now, I call Array#values_at in this way:

a.values_at(*[1,2,3]*100_000)

I get this error:

Exception: SystemStackError: stack level too deep

[nobu (Nobuyoshi Nakada)]

• Description updated (diff)
• Status changed from Open to Rejected

Arguments consume the system stack.

[v0dro (Sameer Deshmukh)]

Nobuyoshi Nakada wrote:

Arguments consume the system stack.

Why not modify the function slightly such that it can also accept an Array containing index numbers as an argument? That way there won't be a need to specify so many arguments.

[nobu (Nobuyoshi Nakada)]

Feel free to submit that feature request.