added base64rvv m4 version

CMakeLists.txt

@@ -80,6 +80,7 @@ aux_source_directory(./src/boost CTR_SOURCES)
 include_directories(libs/base64rvv/lib/include)
 aux_source_directory(./src/base64rvv_m1 CTR_SOURCES)
 aux_source_directory(./src/base64rvv_m2 CTR_SOURCES)
+aux_source_directory(./src/base64rvv_m4 CTR_SOURCES)
 
 set_source_files_properties( ${CTR_SOURCES} PROPERTIES LANGUAGE CXX )
 set_source_files_properties( ${C_SOURCES} PROPERTIES LANGUAGE C )

src/base64rvv_m4/test_base64rvv.cpp

@@ -0,0 +1,51 @@
+#include <gtest/gtest.h>
+#include "../Base64SurveyRegistry.hpp"
+#include "base64rvv/lib/include/libb64rvv.h"
+
+struct BASE64RVV_Adapt
+{
+
+	static constexpr inline size_t GetDecodeExpectedLen(size_t inLen) noexcept
+	{
+		return ((inLen + 3) / 4) * 3;
+	}
+
+	static constexpr inline size_t GetEncodeLen(size_t inLen) noexcept
+	{
+		return ((inLen + 2) / 3) * 4;
+	}
+
+	static std::string encode(void (*func)(uint8_t *in, char *out, size_t inlen), const std::string &bytes)
+	{
+		size_t encLen = GetEncodeLen(bytes.length());
+		std::string encoded;
+		encoded.resize(encLen);
+		func((uint8_t *)&bytes[0], &encoded[0], bytes.length());
+		return encoded;
+	}
+
+	static std::string decode(size_t (*func)(const char *in, int8_t *out, size_t inlen), const std::string &encoded)
+	{
+		std::string decoded;
+		decoded.resize(GetDecodeExpectedLen(encoded.length()));
+		size_t dLen = func((const char *)&encoded[0], (int8_t *)&decoded[0], (size_t)encoded.length());
+		decoded.resize(dLen);
+		return decoded;
+	}
+};
+
+struct Base64rvv_m4
+{
+	std::string encode(const std::string &bytes)
+	{
+		return BASE64RVV_Adapt::encode(base64_encode_rvv_m4, bytes);
+	}
+
+	std::string decode(const std::string &base64)
+	{
+		return BASE64RVV_Adapt::decode(base64_decode_rvv_m4, base64);
+	}
+};
+
+BASE64_REGISTER_ENCODER(Base64rvv_m4);
+BASE64_REGISTER_DECODER(Base64rvv_m4);