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Use memcpy instead of __builtin_bit_cast for ESP8266 compat

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This commit is contained in:
J. Nick Koston
2026-03-18 10:12:04 -10:00
parent 856a0b0c83
commit e7d1d08fa1
1 changed files with 6 additions and 2 deletions
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esphome/components/api/proto.h
+6 -2
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@@ -26,7 +26,11 @@ constexpr uint8_t WIRE_TYPE_MASK = 0b111; // Mask to extract wire type
// Reinterpret float bits as uint32_t without floating-point comparison.
// Used by both encode_float() and calc_float() to ensure identical zero checks.
inline constexpr uint32_t float_to_raw(float value) { return __builtin_bit_cast(uint32_t, value); }
inline uint32_t float_to_raw(float value) {
uint32_t raw;
memcpy(&raw, &value, sizeof(raw));
return raw;
}
// Helper functions for ZigZag encoding/decoding
inline constexpr uint32_t encode_zigzag32(int32_t value) {
@@ -599,7 +603,7 @@ class ProtoSize {
}
static constexpr uint32_t calc_bool(uint32_t field_id_size, bool value) { return value ? field_id_size + 1 : 0; }
static constexpr uint32_t calc_bool_force(uint32_t field_id_size) { return field_id_size + 1; }
static constexpr uint32_t calc_float(uint32_t field_id_size, float value) {
static uint32_t calc_float(uint32_t field_id_size, float value) {
return float_to_raw(value) != 0 ? field_id_size + 4 : 0;
}
static constexpr uint32_t calc_fixed32(uint32_t field_id_size, uint32_t value) {