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handle conversion failure

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This commit is contained in:
J. Nick Koston
2026-01-17 11:03:04 -10:00
parent 36e9febba1
commit 05dbc0035b
1 changed files with 4 additions and 2 deletions
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6
esphome/core/string_ref.h
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@@ -194,15 +194,17 @@ namespace internal {
template<typename R, typename F> inline R parse_number(const StringRef &str, size_t *pos, F conv) {
char *end;
R result = conv(str.c_str(), &end);
// Set pos to 0 on conversion failure (when no characters consumed), otherwise index after number
if (pos)
*pos = static_cast<size_t>(end - str.c_str());
*pos = (end == str.c_str()) ? 0 : static_cast<size_t>(end - str.c_str());
return result;
}
template<typename R, typename F> inline R parse_number(const StringRef &str, size_t *pos, int base, F conv) {
char *end;
R result = conv(str.c_str(), &end, base);
// Set pos to 0 on conversion failure (when no characters consumed), otherwise index after number
if (pos)
*pos = static_cast<size_t>(end - str.c_str());
*pos = (end == str.c_str()) ? 0 : static_cast<size_t>(end - str.c_str());
return result;
}
// NOLINTEND(google-runtime-int)