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authorWladimir J. van der Laan <laanwj@protonmail.com>2020-06-24 17:26:47 +0200
committerWladimir J. van der Laan <laanwj@protonmail.com>2020-08-06 19:41:43 +0200
commit0a8aa626dd69a357e1b798b07b64cf4177a464a3 (patch)
tree44736ce734e8b6b2259becff3962ee3290f7969d /src/util/strencodings.cpp
parent34eb2362581d4d8f0bfd3baa12ba750afaf85c62 (diff)
refactor: Make HexStr take a span
Make HexStr take a span of bytes, instead of an awkward pair of templated iterators.
Diffstat (limited to 'src/util/strencodings.cpp')
-rw-r--r--src/util/strencodings.cpp13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/util/strencodings.cpp b/src/util/strencodings.cpp
index 3a903b6897..d10f92ffe6 100644
--- a/src/util/strencodings.cpp
+++ b/src/util/strencodings.cpp
@@ -569,3 +569,16 @@ std::string Capitalize(std::string str)
str[0] = ToUpper(str.front());
return str;
}
+
+std::string HexStr(const Span<const uint8_t> s)
+{
+ std::string rv;
+ static constexpr char hexmap[16] = { '0', '1', '2', '3', '4', '5', '6', '7',
+ '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
+ rv.reserve(s.size() * 2);
+ for (uint8_t v: s) {
+ rv.push_back(hexmap[v >> 4]);
+ rv.push_back(hexmap[v & 15]);
+ }
+ return rv;
+}