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Use std::span for uint32_to_str public API

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This commit is contained in:
J. Nick Koston
2026-04-08 21:02:20 -10:00
parent 3b45179948
commit e0fa1340e2
1 changed files with 3 additions and 4 deletions
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esphome/core/helpers.h
+3 -4
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@@ -1334,11 +1334,10 @@ inline char *uint32_to_str_(char *buf, uint32_t val) {
/// Write unsigned 32-bit integer to buffer with compile-time size check.
/// Null-terminates the output. Returns number of chars written (excluding null).
template<size_t N> inline size_t uint32_to_str(char (&buf)[N], uint32_t val) {
static_assert(N >= UINT32_MAX_STR_SIZE, "Buffer too small for uint32 (need 11 bytes)");
char *end = uint32_to_str_(buf, val);
inline size_t uint32_to_str(std::span<char, UINT32_MAX_STR_SIZE> buf, uint32_t val) {
char *end = uint32_to_str_(buf.data(), val);
*end = '\0';
return static_cast<size_t>(end - buf);
return static_cast<size_t>(end - buf.data());
}
/// Write fractional digits with leading zeros to buffer (internal, no size check).