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[helpers] Fix `format_hex_pretty` resize without separator (#9389)

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Co-authored-by: RubenKelevra <cyrond@gmail.com>
This commit is contained in:
Jesse Hills 2025-07-09 10:13:21 +12:00 committed by GitHub
parent 78eb236a4a
commit 05c5364490
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1 changed files with 3 additions and 3 deletions
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esphome/core/helpers.cpp
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@ -263,7 +263,7 @@ std::string format_hex_pretty(const uint8_t *data, size_t length, char separator
return "";
std::string ret;
uint8_t multiple = separator ? 3 : 2; // 3 if separator is not \0, 2 otherwise
ret.resize(multiple * length - 1);
ret.resize(multiple * length - (separator ? 1 : 0));
for (size_t i = 0; i < length; i++) {
ret[multiple * i] = format_hex_pretty_char((data[i] & 0xF0) >> 4);
ret[multiple * i + 1] = format_hex_pretty_char(data[i] & 0x0F);
@ -283,7 +283,7 @@ std::string format_hex_pretty(const uint16_t *data, size_t length, char separato
return "";
std::string ret;
uint8_t multiple = separator ? 5 : 4; // 5 if separator is not \0, 4 otherwise
ret.resize(multiple * length - 1);
ret.resize(multiple * length - (separator ? 1 : 0));
for (size_t i = 0; i < length; i++) {
ret[multiple * i] = format_hex_pretty_char((data[i] & 0xF000) >> 12);
ret[multiple * i + 1] = format_hex_pretty_char((data[i] & 0x0F00) >> 8);
@ -304,7 +304,7 @@ std::string format_hex_pretty(const std::string &data, char separator, bool show
return "";
std::string ret;
uint8_t multiple = separator ? 3 : 2; // 3 if separator is not \0, 2 otherwise
ret.resize(multiple * data.length() - 1);
ret.resize(multiple * data.length() - (separator ? 1 : 0));
for (size_t i = 0; i < data.length(); i++) {
ret[multiple * i] = format_hex_pretty_char((data[i] & 0xF0) >> 4);
ret[multiple * i + 1] = format_hex_pretty_char(data[i] & 0x0F);