feat(base58): unfixed bug with double \0 and incorrect real str_size

include/base.hpp

@@ -1,4 +1,6 @@
-#include <base/hex.hpp>
-#include <base/baseN.hpp>
+#include <base/base58.hpp>
 #include <base/base64.hpp>
-#include <base/hash/sha256.hpp>
+#include <base/baseN.hpp>
+#include <base/hash/sha256.hpp>
+#include <base/hex.hpp>
+

include/base/base58.hpp

@@ -0,0 +1,27 @@
+#pragma once
+
+#include <cstdint>
+#include <span>
+#include <string>
+#include <vector>
+
+namespace base58
+{
+    extern const char digits[59];
+    extern const int8_t map[256];
+
+    bool isValid(const char *str, uint64_t str_size) noexcept;
+    bool isValid(std::string_view str) noexcept;
+
+    uint64_t sizeEncoded(std::span<const uint8_t> data) noexcept;
+    uint64_t sizeDecoded(std::string_view str) noexcept;
+
+    void encode(const uint8_t *data, uint64_t data_size, char *str, uint64_t str_size) noexcept;
+    std::string encode(std::span<const uint8_t> data) noexcept;
+
+    void decode(const char *str, uint64_t str_size, uint8_t *data, uint64_t data_size) noexcept;
+    std::vector<uint8_t> decode(std::string_view str) noexcept;
+
+    std::string encodeCheck(std::span<const uint8_t> data) noexcept;
+    std::vector<uint8_t> decodeCheck(std::string_view str);
+}