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-rw-r--r--src/utilstrencodings.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/utilstrencodings.cpp b/src/utilstrencodings.cpp
index 2326383586..4940267bae 100644
--- a/src/utilstrencodings.cpp
+++ b/src/utilstrencodings.cpp
@@ -72,7 +72,7 @@ bool IsHexNumber(const std::string& str)
if (str.size() > 2 && *str.begin() == '0' && *(str.begin()+1) == 'x') {
starting_location = 2;
}
- for (auto c : str.substr(starting_location)) {
+ for (const char c : str.substr(starting_location)) {
if (HexDigit(c) < 0) return false;
}
// Return false for empty string or "0x".