Backport #6093: Requiring mathn causes Float.to_d to SEG FAULT when used with BigDecimal

• Status: Closed
• Assignee: -

[mrbauer1 (Matt Bauer)]

To Reproduce:

require 'bigdecimal'
require 'bigdecimal/util'
require 'mathn'

10.0.to_d #=> Generates SEG FAULT (https://gist.github.com/1921116, https://gist.github.com/1921407)

Note only this combination of requires causes the SEG FAULT. If math isn't included, it will work as expected. I confirmed this works in 1.8.7-p249 and 1.9.2-p290 on the same platform.

[nobu (Nobuyoshi Nakada)]

• Tracker changed from Bug to Backport
• Project changed from Ruby to 13
• Category deleted (core)
• Target version deleted (1.9.3)

[nobu (Nobuyoshi Nakada)]

• Tracker changed from Backport to Bug
• Project changed from 13 to Ruby

[nobu (Nobuyoshi Nakada)]

• % Done changed from 0 to 100
• Status changed from Open to Closed

This issue was solved with changeset r34829.
Matt, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

---

• ext/bigdecimal/bigdecimal.c (GetVpValueWithPrec): since methods
  can be overridden, so should not make an assumption on the type
  of results. [ruby-core:42969][Bug #6093]

[nobu (Nobuyoshi Nakada)]

• Tracker changed from Bug to Backport
• Project changed from Ruby to 13