Merged master 8748

2018-08-05 11:33:30 -04:00
parent 8f8772f1bd
commit 62899069bf
1222 changed files with 70382 additions and 406763 deletions
@@ -0,0 +1,31 @@
+#include <boost/crc.hpp>
+#include <boost/config.hpp>
+
+extern "C"
+{
+   short crc14 (unsigned char const * data, int length);
+   bool crc14_check (unsigned char const * data, int length);
+}
+
+#define POLY 0x2757
+
+#ifdef BOOST_NO_CXX11_CONSTEXPR
+#define TRUNCATED_POLYNOMIAL POLY
+#else
+namespace
+{
+  unsigned long constexpr TRUNCATED_POLYNOMIAL = POLY;
+}
+#endif
+
+// assumes CRC is last 14 bits of the data and is set to zero
+// caller should assign the returned CRC into the message in big endian byte order
+short crc14 (unsigned char const * data, int length)
+{
+    return boost::augmented_crc<14, TRUNCATED_POLYNOMIAL> (data, length);
+}
+
+bool crc14_check (unsigned char const * data, int length)
+{
+   return !boost::augmented_crc<14, TRUNCATED_POLYNOMIAL> (data, length);
+}