--- /dev/null
+/*
+ NSNumber+ExprValue.m
+
+ Copyright (C) 2007 Helge Hess
+
+ Author: Helge Hess (helge@opengroupware.org)
+
+ This file is part of the PostgreSQL Adaptor Library
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with this library; see the file COPYING.LIB.
+ If not, write to the Free Software Foundation,
+ 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+*/
+
+#if GNUSTEP_BASE_LIBRARY
+
+#include "common.h"
+
+@implementation NSNumber(ExprValue)
+
+- (NSString *)expressionValueForContext:(id)_context {
+ /*
+ on gstep-base -stringValue of bool's return YES or NO, which seems to
+ be different on Cocoa and liBFoundation.
+ */
+ Class BoolClass = Nil;
+
+ if (BoolClass == Nil) BoolClass = NSClassFromString(@"NSBoolNumber");
+
+ if ([self isKindOfClass:BoolClass])
+ return [self boolValue] ? @"1" : @"0";
+
+ return [self stringValue];
+}
+
+@end /* NSNumber(ExprValue) */
+
+#endif /* GNUSTEP_BASE_LIBRARY */