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Faster app_settings save (#1145)

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* No-allocation settings save

* remove fixed TODO

---------

Co-authored-by: kallanreed <kallanreed@outlook.com>
This commit is contained in:
Kyle Reed
2023-06-11 13:35:45 -07:00
committed by GitHub
parent 8bd3d6249d
commit fff78ce00f
3 changed files with 30 additions and 2 deletions
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6
firmware/application/string_format.hpp
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@@ -23,6 +23,7 @@
#define __STRING_FORMAT_H__
#include <cstdint>
#include <array>
#include <string>
#include "file.hpp"
@@ -39,6 +40,11 @@ enum TimeFormat {
const char unit_prefix[7]{'n', 'u', 'm', 0, 'k', 'M', 'G'};
using StringFormatBuffer = std::array<char, 16>;
/* uint32_t conversion without memory allocations. */
char* to_string_dec_uint(const uint32_t n, StringFormatBuffer& buffer, size_t& length);
// TODO: Allow l=0 to not fill/justify? Already using this way in ui_spectrum.hpp...
std::string to_string_bin(const uint32_t n, const uint8_t l = 0);
std::string to_string_dec_uint(const uint32_t n, const int32_t l = 0, const char fill = ' ');