Add no-throw destructors to exception classes that were lacking one

[libs/core.git] / source / io / file.h

diff --git a/source/io/file.h b/source/io/file.h
index cd547b37545cb23b6f0c3842c512a7cf13847905..90a1041ccda6520db5386b724f43fe6e936bfe85 100644 (file)
--- a/source/io/file.h
+++ b/source/io/file.h
@@ -15,6 +15,14 @@ class file_not_found: public std::runtime_error
 {
 public:
        file_not_found(const std::string &fn): std::runtime_error(fn) { }
+       ~file_not_found() throw() { }
+};
+
+class file_already_exists: public std::runtime_error
+{
+public:
+       file_already_exists(const std::string &fn): std::runtime_error(fn) { }
+       ~file_already_exists() throw() { }
 };
 
 
@@ -30,7 +38,10 @@ public:
        {
                C_NONE = 0,
                C_CREATE = 1,
-               C_TRUNCATE = 2
+               C_TRUNCATE = 2,
+               C_OVERWRITE = C_CREATE+C_TRUNCATE,
+               C_EXCLUSIVE = 4,
+               C_NEW = C_CREATE+C_EXCLUSIVE
        };
 
 private:
@@ -40,7 +51,7 @@ public:
        /** Creates a new file object and opens it.  If the create flag is set and
        write access is requested and the file does exist, it is created.  Otherwise
        a missing file is an error. */
-       File(const std::string &, Mode = M_READ, CreateMode = CreateMode(C_CREATE+C_TRUNCATE));
+       File(const std::string &, Mode = M_READ, CreateMode = C_OVERWRITE);
        virtual ~File();
 
        void set_block(bool);
@@ -55,8 +66,7 @@ public:
        virtual SeekOffset seek(SeekOffset, SeekType);
        virtual SeekOffset tell() const;
 
-private:
-       void check_access(Mode) const;
+       virtual const Handle &get_handle(Mode);
 };
 
 inline File::CreateMode operator|(File::CreateMode m, File::CreateMode n)