New valexpr functions: id, idstring, magnitude

id returns a unique SHA1 id of a transaction.
idstring is the string that the SHA1 is based on.
magnitude is the sum of the positive side of a transaction.

1 files changed, 13 insertions, 0 deletions

diff --git a/src/utils.h b/src/utils.h
index 7042ddf6..7f5ca017 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -594,6 +594,19 @@ inline char peek_next_nonws(std::istream& in) {
     *_p = '\0';						\
   }
 
+inline string to_hex(uint_least32_t * message_digest)
+{
+  std::ostringstream buf;
+
+  for(int i = 0; i < 5 ; i++) {
+    buf.width(8);
+    buf.fill('0');
+    buf << std::hex << message_digest[i];
+    break;			// only output the first dword
+  }
+  return buf.str();
+}
+
 extern const string version;
 
 } // namespace ledger