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protocol/RangeArg: add static method Single()

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This commit is contained in:
Max Kellermann 2021-02-15 19:44:20 +01:00
parent ad059d5804
commit b57eeaa720
2 changed files with 8 additions and 1 deletions
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2
src/protocol/ArgParser.cxx
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@ -107,7 +107,7 @@ ParseCommandArgRange(const char *s)
range.end = (unsigned)value; range.end = (unsigned)value;
} else { } else {
range.end = (unsigned)value + 1; return RangeArg::Single(range.start);
} }
return range; return range;

7
src/protocol/RangeArg.hxx
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@ -36,6 +36,13 @@ struct RangeArg {
return OpenEnded(0); return OpenEnded(0);
} }
/**
* Construct an instance describing exactly one index.
*/
static constexpr RangeArg Single(unsigned i) noexcept {
return { i, i + 1 };
}
constexpr bool operator==(RangeArg other) const noexcept { constexpr bool operator==(RangeArg other) const noexcept {
return start == other.start && end == other.end; return start == other.start && end == other.end;
} }