X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=utils%2FTableGen%2FSequenceToOffsetTable.h;h=fcda233dc913cfab82b0341591cfe0b8a628bc4e;hb=22bd64173981bf1251c4b3bfc684207340534ba3;hp=09dccbb1084affb3da75847eecdde3c8d9086de2;hpb=0d4e2ea00eac5d51a74a54dd504a8f34580041d7;p=oota-llvm.git

diff --git a/utils/TableGen/SequenceToOffsetTable.h b/utils/TableGen/SequenceToOffsetTable.h
index 09dccbb1084..fcda233dc91 100644
--- a/utils/TableGen/SequenceToOffsetTable.h
+++ b/utils/TableGen/SequenceToOffsetTable.h
@@ -17,10 +17,11 @@
 #define TBLGEN_SEQUENCE_TO_OFFSET_TABLE_H
 
 #include "llvm/Support/raw_ostream.h"
-#include <functional>
 #include <algorithm>
-#include <vector>
 #include <cassert>
+#include <cctype>
+#include <functional>
+#include <vector>
 
 namespace llvm {
 
@@ -28,8 +29,8 @@ namespace llvm {
 /// Compute the layout of a table that contains all the sequences, possibly by
 /// reusing entries.
 ///
-/// @param SeqT The sequence container. (vector or string).
-/// @param Less A stable comparator for SeqT elements.
+/// @tparam SeqT The sequence container. (vector or string).
+/// @tparam Less A stable comparator for SeqT elements.
 template<typename SeqT, typename Less = std::less<typename SeqT::value_type> >
 class SequenceToOffsetTable {
   typedef typename SeqT::value_type ElemT;
@@ -80,6 +81,8 @@ public:
       Seqs.erase(I);
   }
 
+  bool empty() const { return Seqs.empty(); }
+
   /// layout - Computes the final table layout.
   void layout() {
     assert(Entries == 0 && "Can only call layout() once");
@@ -120,6 +123,19 @@ public:
   }
 };
 
+// Helper function for SequenceToOffsetTable<string>.
+static inline void printChar(raw_ostream &OS, char C) {
+  unsigned char UC(C);
+  if (isalnum(UC) || ispunct(UC)) {
+    OS << '\'';
+    if (C == '\\' || C == '\'')
+      OS << '\\';
+    OS << C << '\'';
+  } else {
+    OS << unsigned(UC);
+  }
+}
+
 } // end namespace llvm
 
 #endif