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Reserve strings length before formatting Manchester data.

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This commit is contained in:
Jared Boone 2015-12-01 15:36:09 -08:00
parent 810c65dd9c
commit 7b9ba696e5
1 changed files with 4 additions and 0 deletions
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4
firmware/application/ui_receiver.cpp
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@ -587,10 +587,14 @@ static ManchesterFormatted format_manchester(
) { ) {
const size_t payload_length_decoded = decoder.symbols_count(); const size_t payload_length_decoded = decoder.symbols_count();
const size_t payload_length_bytes = (payload_length_decoded + 7) / 8; const size_t payload_length_bytes = (payload_length_decoded + 7) / 8;
const size_t payload_length_hex_characters = payload_length_bytes * 2;
const size_t payload_length_symbols_rounded = payload_length_bytes * 8; const size_t payload_length_symbols_rounded = payload_length_bytes * 8;
std::string hex_data; std::string hex_data;
std::string hex_error; std::string hex_error;
hex_data.reserve(payload_length_hex_characters);
hex_error.reserve(payload_length_hex_characters);
uint8_t byte_data = 0; uint8_t byte_data = 0;
uint8_t byte_error = 0; uint8_t byte_error = 0;
for(size_t i=0; i<payload_length_symbols_rounded; i++) { for(size_t i=0; i<payload_length_symbols_rounded; i++) {