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This makes it easier to see which headers includes what.
The changes were done by running
git grep -l '#\s*include' \
| grep -E '.(cc|h)$' \
| xargs sed -i -E 's/(^\s*)#(\s*)include/\1#\2 include/'
To modify all include lines by adding a space, and then running
./git-clang-format.sh.
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This has the effect of significantly reducing actual string
comparisons, and should improve the performance of FindGrp
a bit, although it's hardly measureable (callgrind says it
uses 10% instructions less now).
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This avoids templates using StringView to be exported, such as
std::vector<StringView*>::emplace_back().
Gbp-Dch: ignore
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APT::StringView is supposed to be a temporary measure, until support
for the standardized string_view is widely available. Introducing
additional unstandardized features just makes porting to the
standard version harder.
The constexpr constructor also won't have any real effect on most
systems, as the compiler will happily optimise the strlen() call
away for constant strings.
Gbp-Dch: ignore
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The commit also adds a few trivial tests
Git-Dch: Ignore
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The position returned is supposed to be the position of the character
counted from the start of the string, but if we used the substr calling
overloads the skipped over prefix wasn't considered. The pos parameter
of rfind had also the wrong semantic.
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Use the same path for both comparisons, as the operator== path
is faster than just calling compare() - it avoids any comparison
if the size differs.
Gbp-Dch: ignore
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Gbp-Dch: ignore
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Gbp-Dch: ignore
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Thanks: Niels Thykier for reporting on IRC
Gbp-Dch: ignore
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The class APT::StringView implements a drop-in replacement
for a subset of C++17 std::string_view() features. It will
be dropped at a later point and may not be used in public
interfaces.
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