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This commit is contained in:
J. Nick Koston
2025-10-02 23:03:53 +02:00
parent 10a16c3761
commit f5fc06fd9e
1 changed files with 3 additions and 1 deletions
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esphome/core/helpers.cpp
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@@ -366,7 +366,9 @@ std::string value_accuracy_to_string(float value, int8_t accuracy_decimals) {
std::string value_accuracy_with_uom_to_string(float value, int8_t accuracy_decimals, StringRef unit_of_measurement) { std::string value_accuracy_with_uom_to_string(float value, int8_t accuracy_decimals, StringRef unit_of_measurement) {
normalize_accuracy_decimals(value, accuracy_decimals); normalize_accuracy_decimals(value, accuracy_decimals);
char tmp[64]; // Increased to accommodate unit of measurement // Buffer sized for float (up to ~15 chars) + space + typical UOM (usually <20 chars like "μS/cm")
// snprintf truncates safely if exceeded, though ESPHome UOMs are typically short
char tmp[64];
if (unit_of_measurement.empty()) { if (unit_of_measurement.empty()) {
snprintf(tmp, sizeof(tmp), "%.*f", accuracy_decimals, value); snprintf(tmp, sizeof(tmp), "%.*f", accuracy_decimals, value);
} else { } else {