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Re: C++: finish propagating the unsigned->signed conversion in locations
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From: |
Hans Åberg |
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Subject: |
Re: C++: finish propagating the unsigned->signed conversion in locations |
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Date: |
Tue, 29 Oct 2019 22:38:55 +0100 |
> On 29 Oct 2019, at 21:30, Akim Demaille <address@hidden> wrote:
>
> + In C++, line numbers and columns are now represented as 'int' not
> + 'unsigned', so that integer overflow on positions is easily checkable via
> + 'gcc -fsanitize=undefined' and the like. This affects the API for
> + positions.
There is std::streamoff for indicating file positions, it is signed, and can
represent the maximum file size. By contrast, int can overflow on modern 64-bit
computers.
https://en.cppreference.com/w/cpp/io/streamoff