23     if (strLen % TO_TRANSFORM_CHAR_NUM != 0) {  in Base64Encode()
26     std::string encodedRes = std::string(encodedStrLen, '\0');  in Base64Encode()
29 …for (size_t i = 0, j = 0; i < encodedRes.length() - 2; i += TRANSFORMED_CHAR_NUM, j += TO_TRANSFOR…  in Base64Encode()
30         // convert three 8bit into four 6bit; then add two 0 bit in each 6 bit  in Base64Encode()
32         encodedRes[i] = base64CharSet[(static_cast<unsigned int>(inputString[j]) & 0xff) >> 2];  in Base64Encode()
34         encodedRes[i + 1] = base64CharSet[(static_cast<unsigned int>(inputString[j]) & 0x03) << 4 |  in Base64Encode()
35             (static_cast<unsigned int>(inputString[j + 1]) & 0xf0) >> 4];  in Base64Encode()
37 …    encodedRes[i + 2] = base64CharSet[(static_cast<unsigned int>(inputString[j + 1]) & 0x0f) << 2 |  in Base64Encode()
38             (static_cast<unsigned int>(inputString[j + 2]) & 0xc0) >> 6];  in Base64Encode()
40         encodedRes[i + 3] = base64CharSet[static_cast<unsigned int>(inputString[j + 2]) & 0x3f];  in Base64Encode()
69         52, 53, 54, 55, 56, 57, 58, 59, 60, 61,   // '0'~'9'  in Base64Decode()
71         0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,  in Base64Decode()
85     std::string decodedRes = std::string(decodedStrLen, '\0');  in Base64Decode()
86     int firstChar = 0;  in Base64Decode()
87     int secondChar = 0;  in Base64Decode()
88     int thirdChar = 0;  in Base64Decode()
89     int fourthChar = 0;  in Base64Decode()
91 … for (size_t i = 0, j = 0; i < strLen - 2; i += TRANSFORMED_CHAR_NUM, j += TO_TRANSFORM_CHAR_NUM) {  in Base64Decode()