Migrated engine to using dlmalloc through eng::

luprex/core/cpp/printbuffer.hpp

@@ -87,6 +87,7 @@
 #include "invocation.hpp"
 #include "debugcollector.hpp"
 
+
 struct PrintBufferCore;
 
 class PrintBuffer {
@@ -112,10 +113,10 @@ public:
     bool never_printed() const;
 
     // Get the specified line number.
-    const std::string &nth(int n) const;
+    const eng::string &nth(int n) const;
     
     // Print the entire contents of the buffer to a string (for unit testing).
-    std::string debug_string() const;
+    eng::string debug_string() const;
 
     // Clear the buffer
     void clear();
@@ -123,7 +124,7 @@ public:
     // Add a string.  If the string doesn't end in a newline, a newline
     // is added.  The string is broken into lines, and the lines are added
     // to the PrintBuffer.
-    void add_string(const std::string &s, bool auth);
+    void add_string(const eng::string &s, bool auth);
 
     // Discard lines up to but not including line N.
     void discard_upto(int n);
@@ -150,7 +151,7 @@ public:
     // Copy any new lines from the printbuffer to the stdostream.
     // Update the current line number.  Return true if the printbuffer
     // contains any lines that have already been channeled.
-    bool channel(const PrintBuffer *pb, std::ostream &ostream);
+    bool channel(const PrintBuffer *pb, eng::ostream &ostream);
 
     // Generate an invocation that removes unnecessary lines from the
     // printbuffer.