fit new CMakeLists

base16384.h

@@ -0,0 +1,45 @@
+#ifndef _BASE14_H_
+#define _BASE14_H_
+
+// base14.h
+// fumiama 20220319
+
+// encode_len calc min buf size to fill encode result
+int encode_len(int dlen) {
+	int outlen = dlen / 7 * 8;
+	int offset = dlen % 7;
+	switch(offset) {	// 算上偏移标志字符占用的2字节
+		case 0: break;
+		case 1: outlen += 4; break;
+		case 2:
+		case 3: outlen += 6; break;
+		case 4:
+		case 5: outlen += 8; break;
+		case 6: outlen += 10; break;
+		default: break;
+	}
+	return outlen + 8;	// 冗余的8B用于可能的结尾的覆盖
+}
+
+// decode_len calc min buf size to fill decode result
+int decode_len(int dlen, int offset) {
+	int outlen = dlen;
+	switch(offset) {	// 算上偏移标志字符占用的2字节
+		case 0: break;
+		case 1: outlen -= 4; break;
+		case 2:
+		case 3: outlen -= 6; break;
+		case 4:
+		case 5: outlen -= 8; break;
+		case 6: outlen -= 10; break;
+		default: break;
+	}
+	return outlen / 8 * 7 + offset + 1; // 多出1字节用于循环覆盖
+}
+
+// encode data and write result into buf
+int encode(const char* data, int dlen, char* buf, int blen);
+// decode data and write result into buf
+int decode(const char* data, int dlen, char* buf, int blen);
+
+#endif