Changeset 290:f6899946c1ac in lemon-1.2 for lemon/dfs.h

Timestamp:

09/30/08 20:53:18 (15 years ago)

Author:

Balazs Dezso <deba@…>

Branch:

default

Phase:

public

Message:

Simplifying exceptions

• Using asserts instead of exceptions for unitialized parameters
• Only the IO exceptions are used in the lemon
• DataFormatError? is renamed to FormatError?
• The IoError? is used for file access errors

File:

• lemon/dfs.h (modified) (8 diffs)

lemon/dfs.h

@@ -137 +137 @@
   class Dfs {
   public:
-    ///\ref Exception for uninitialized parameters.
-
-    ///This error represents problems in the initialization of the
-    ///parameters of the algorithm.
-    class UninitializedParameter : public lemon::UninitializedParameter {
-    public:
-      virtual const char* what() const throw() {
-        return "lemon::Dfs::UninitializedParameter";
-      }
-    };
 
     ///The type of the digraph the algorithm runs on.
@@ -233 +223 @@
       static PredMap *createPredMap(const Digraph &)
       {
-        throw UninitializedParameter();
+        LEMON_ASSERT(false, "PredMap is not initialized");
+        return 0; // ignore warnings
       }
     };
@@ -251 +242 @@
       static DistMap *createDistMap(const Digraph &)
       {
-        throw UninitializedParameter();
+        LEMON_ASSERT(false, "DistMap is not initialized");
+        return 0; // ignore warnings
       }
     };
@@ -269 +261 @@
       static ReachedMap *createReachedMap(const Digraph &)
       {
-        throw UninitializedParameter();
+        LEMON_ASSERT(false, "ReachedMap is not initialized");
+        return 0; // ignore warnings
       }
     };
@@ -287 +280 @@
       static ProcessedMap *createProcessedMap(const Digraph &)
       {
-        throw UninitializedParameter();
+        LEMON_ASSERT(false, "ProcessedMap is not initialized");
+        return 0; // ignore warnings
       }
     };
@@ -975 +969 @@
     bool run(Node s, Node t)
     {
-      if (s==INVALID || t==INVALID) throw UninitializedParameter();
       Dfs<Digraph,TR> alg(*reinterpret_cast<const Digraph*>(Base::_g));
       if (Base::_pred)
@@ -1271 +1264 @@
   public:
 
-    /// \brief \ref Exception for uninitialized parameters.
-    ///
-    /// This error represents problems in the initialization
-    /// of the parameters of the algorithm.
-    class UninitializedParameter : public lemon::UninitializedParameter {
-    public:
-      virtual const char* what() const throw()
-      {
-        return "lemon::DfsVisit::UninitializedParameter";
-      }
-    };
-
     ///The traits class.
     typedef _Traits Traits;
@@ -1337 +1318 @@
       typedef T ReachedMap;
       static ReachedMap *createReachedMap(const Digraph &digraph) {
-        throw UninitializedParameter();
+        LEMON_ASSERT(false, "ReachedMap is not initialized");
+        return 0; // ignore warnings
       }
     };