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Don't assume the type of string::size_type #8525

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merged 1 commit into from
Jun 16, 2023

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thufschmitt
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Motivation

The code accidentally conflated std::string::size_type and long unsigned int.
This was fine on 64bits machines where they are apparently the same in
practice, but not on 32bits. Fix that by using std::string::size_type
everywhere.

Context

Part of #8523

Checklist for maintainers

Maintainers: tick if completed or explain if not relevant

  • agreed on idea
  • agreed on implementation strategy
  • tests, as appropriate
    • functional tests - tests/**.sh
    • unit tests - src/*/tests
    • integration tests - tests/nixos/*
  • documentation in the manual
  • documentation in the internal API docs
  • code and comments are self-explanatory
  • commit message explains why the change was made
  • new feature or incompatible change: updated release notes

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The code accidentally conflated `std::string::size_type` and `long unsigned int`.
This was fine on 64bits machines where they are apparently the same in
practice, but not on 32bits. Fix that by using `std::string::size_type`
everywhere.
@edolstra edolstra merged commit 0932014 into NixOS:master Jun 16, 2023
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This pull request has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/tweag-nix-dev-update-50/29793/1

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4 participants