From: Mikko Rasa <tdb@tdb.fi>
Date: Thu, 27 Sep 2012 22:04:31 +0000 (+0300)
Subject: Add some useful shortcuts for CreateMode combinations
X-Git-Url: http://git.tdb.fi/?p=libs%2Fcore.git;a=commitdiff_plain;h=8642ac1b4478419630911a51a53fe8ef5fb46647

Add some useful shortcuts for CreateMode combinations

All valid modes can now be referred to with a single enumerator.
C_EXCLUSIVE alone is not valid.
---

diff --git a/source/io/file.cpp b/source/io/file.cpp
index 208371d..d4b2da3 100644
--- a/source/io/file.cpp
+++ b/source/io/file.cpp
@@ -39,8 +39,8 @@ File::File(const string &fn, Mode m, CreateMode cm)
 		case C_NONE:     create_flags = OPEN_EXISTING; break;
 		case C_CREATE:   create_flags = OPEN_ALWAYS; break;
 		case C_TRUNCATE: create_flags = TRUNCATE_EXISTING; break;
-		case C_CREATE+C_TRUNCATE: create_flags = CREATE_ALWAYS; break;
-		case C_CREATE+C_EXCLUSIVE: create_flags = CREATE_NEW; break;
+		case C_OVERWRITE: create_flags = CREATE_ALWAYS; break;
+		case C_NEW:      create_flags = CREATE_NEW; break;
 		}
 	}
 
diff --git a/source/io/file.h b/source/io/file.h
index 4f8e5dd..5fb0353 100644
--- a/source/io/file.h
+++ b/source/io/file.h
@@ -37,7 +37,9 @@ public:
 		C_NONE = 0,
 		C_CREATE = 1,
 		C_TRUNCATE = 2,
-		C_EXCLUSIVE = 4
+		C_OVERWRITE = C_CREATE+C_TRUNCATE,
+		C_EXCLUSIVE = 4,
+		C_NEW = C_CREATE+C_EXCLUSIVE
 	};
 
 private:
@@ -47,7 +49,7 @@ 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);