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Implement operator< for KeyOriginInfo and CExtPubKey

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This commit is contained in:
Andrew Chow
2019-07-25 11:58:14 -04:00
parent d3dbb16168
commit c5c63b8e4f
2 changed files with 34 additions and 0 deletions
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19
src/script/keyorigin.h
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@@ -18,6 +18,25 @@ struct KeyOriginInfo
return std::equal(std::begin(a.fingerprint), std::end(a.fingerprint), std::begin(b.fingerprint)) && a.path == b.path;
}
friend bool operator<(const KeyOriginInfo& a, const KeyOriginInfo& b)
{
// Compare the fingerprints lexicographically
int fpr_cmp = memcmp(a.fingerprint, b.fingerprint, 4);
if (fpr_cmp < 0) {
return true;
} else if (fpr_cmp > 0) {
return false;
}
// Compare the sizes of the paths, shorter is "less than"
if (a.path.size() < b.path.size()) {
return true;
} else if (a.path.size() > b.path.size()) {
return false;
}
// Paths same length, compare them lexicographically
return a.path < b.path;
}
SERIALIZE_METHODS(KeyOriginInfo, obj) { READWRITE(obj.fingerprint, obj.path); }
void clear()