fix(types): int8_t -> uint8_t; -1 -> 255
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@ -9,23 +9,23 @@ namespace base64
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{
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const char digits[] =
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"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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const int8_t map[] = {
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
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52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,
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-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
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15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,
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-1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
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41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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const uint8_t map[] = {
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255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
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255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
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255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 62, 255, 255, 255, 63,
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52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 255, 255, 255, 255, 255, 255,
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255, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
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15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 255, 255, 255, 255, 255,
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255, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
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41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 255, 255, 255, 255, 255,
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255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
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255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
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255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
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255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
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255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
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255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
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255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
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255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
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//
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};
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bool isValid(const char *str, size_t str_size) noexcept
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@ -118,19 +118,19 @@ namespace base64
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}
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for (auto i = 0; i < size / 4; i++)
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{
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data[i * 3] = map[(int8_t)str[i * 4]] << 2 | map[(int8_t)str[i * 4 + 1]] >> 4;
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data[i * 3 + 1] = map[(int8_t)str[i * 4 + 1]] << 4 | map[(int8_t)str[i * 4 + 2]] >> 2;
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data[i * 3 + 2] = map[(int8_t)str[i * 4 + 2]] << 6 | map[(int8_t)str[i * 4 + 3]];
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data[i * 3] = map[(uint8_t)str[i * 4]] << 2 | map[(uint8_t)str[i * 4 + 1]] >> 4;
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data[i * 3 + 1] = map[(uint8_t)str[i * 4 + 1]] << 4 | map[(uint8_t)str[i * 4 + 2]] >> 2;
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data[i * 3 + 2] = map[(uint8_t)str[i * 4 + 2]] << 6 | map[(uint8_t)str[i * 4 + 3]];
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}
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size_t last_idx = size / 4 * 3;
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switch (size % 4)
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{
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case 2:
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data[last_idx] = map[(int8_t)str[size - 2]] << 2 | map[(int8_t)str[size - 1]] >> 4;
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data[last_idx] = map[(uint8_t)str[size - 2]] << 2 | map[(uint8_t)str[size - 1]] >> 4;
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break;
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case 3:
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data[last_idx] = map[(int8_t)str[size - 3]] << 2 | map[(int8_t)str[size - 2]] >> 4;
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data[last_idx + 1] = map[(int8_t)str[size - 2]] << 4 | map[(int8_t)str[size - 1]] >> 2;
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data[last_idx] = map[(uint8_t)str[size - 3]] << 2 | map[(uint8_t)str[size - 2]] >> 4;
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data[last_idx + 1] = map[(uint8_t)str[size - 2]] << 4 | map[(uint8_t)str[size - 1]] >> 2;
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break;
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default:
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break;
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