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/* NSNumber - Object encapsulation of numbers
Copyright (C) 1993, 1994, 1996 Free Software Foundation, Inc.
Written by: Adam Fedor <fedor@boulder.colorado.edu>
Created: Mar 1995
This file is part of the GNUstep Base 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; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <gnustep/base/preface.h>
#include <Foundation/NSException.h>
#include <Foundation/NSString.h>
#include <Foundation/NSConcreteNumber.h>
#include <Foundation/NSCoder.h>
@implementation NSNumber
/* Returns the concrete class associated with the type encoding. Note
that we don't allow NSNumber to instantiate any class but its own
concrete subclasses (see check at end of method) */
+ (Class)valueClassWithObjCType:(const char *)type
{
Class theClass = Nil;
switch (*type) {
case _C_CHR:
theClass = [NSCharNumber class];
break;
case _C_UCHR:
theClass = [NSUCharNumber class];
break;
case _C_SHT:
theClass = [NSShortNumber class];
break;
case _C_USHT:
theClass = [NSUShortNumber class];
break;
case _C_INT:
theClass = [NSIntNumber class];
break;
case _C_UINT:
theClass = [NSUIntNumber class];
break;
case _C_LNG:
theClass = [NSLongNumber class];
break;
case _C_ULNG:
theClass = [NSULongNumber class];
break;
case 'q':
theClass = [NSLongLongNumber class];
break;
case 'Q':
theClass = [NSULongLongNumber class];
break;
case _C_FLT:
theClass = [NSFloatNumber class];
break;
case _C_DBL:
theClass = [NSDoubleNumber class];
break;
default:
break;
}
if (theClass == Nil && self == [NSNumber class]) {
[NSException raise:NSInvalidArgumentException
format:@"Invalid number type"];
/* NOT REACHED */
} else if (theClass == Nil)
theClass = [super valueClassWithObjCType:type];
return theClass;
}
+ (NSNumber *)numberWithBool:(BOOL)value
{
return [[[NSBoolNumber alloc] initValue:&value withObjCType:NULL]
autorelease];
}
+ (NSNumber *)numberWithChar:(char)value
{
return [[[NSCharNumber alloc] initValue:&value withObjCType:NULL]
autorelease];
}
+ (NSNumber *)numberWithDouble:(double)value
{
return [[[NSDoubleNumber alloc] initValue:&value withObjCType:NULL]
autorelease];
}
+ (NSNumber *)numberWithFloat:(float)value
{
return [[[NSFloatNumber alloc] initValue:&value withObjCType:NULL]
autorelease];
}
+ (NSNumber *)numberWithInt:(int)value
{
return [[[NSIntNumber alloc] initValue:&value withObjCType:NULL]
autorelease];
}
+ (NSNumber *)numberWithLong:(long)value
{
return [[[NSNumber alloc] initValue:&value withObjCType:NULL] autorelease];
}
+ (NSNumber *)numberWithLongLong:(long long)value
{
return [[[NSLongLongNumber alloc] initValue:&value withObjCType:NULL]
autorelease];
}
+ (NSNumber *)numberWithShort:(short)value
{
return [[[NSShortNumber alloc] initValue:&value withObjCType:NULL]
autorelease];
}
+ (NSNumber *)numberWithUnsignedChar:(unsigned char)value
{
return [[[NSUCharNumber alloc] initValue:&value withObjCType:NULL]
autorelease];
}
+ (NSNumber *)numberWithUnsignedInt:(unsigned int)value
{
return [[[NSUIntNumber alloc] initValue:&value withObjCType:NULL]
autorelease];
}
+ (NSNumber *)numberWithUnsignedLong:(unsigned long)value
{
return [[[NSULongNumber alloc] initValue:&value withObjCType:NULL]
autorelease];
}
+ (NSNumber *)numberWithUnsignedLongLong:(unsigned long long)value
{
return [[[NSULongLongNumber alloc] initValue:&value withObjCType:NULL]
autorelease];
}
+ (NSNumber *)numberWithUnsignedShort:(unsigned short)value
{
return [[[NSUShortNumber alloc] initValue:&value withObjCType:NULL]
autorelease];
}
/* All the rest of these methods must be implemented by a subclass */
- (BOOL)boolValue
{
[self subclassResponsibility:_cmd];
return 0;
}
- (char)charValue
{
[self subclassResponsibility:_cmd];
return 0;
}
- (double)doubleValue
{
[self subclassResponsibility:_cmd];
return 0;
}
- (float)floatValue
{
[self subclassResponsibility:_cmd];
return 0;
}
- (int)intValue
{
[self subclassResponsibility:_cmd];
return 0;
}
- (long long)longLongValue
{
[self subclassResponsibility:_cmd];
return 0;
}
- (long)longValue
{
[self subclassResponsibility:_cmd];
return 0;
}
- (short)shortValue
{
[self subclassResponsibility:_cmd];
return 0;
}
- (NSString *)stringValue
{
[self subclassResponsibility:_cmd];
return 0;
}
- (unsigned char)unsignedCharValue
{
[self subclassResponsibility:_cmd];
return 0;
}
- (unsigned int)unsignedIntValue
{
[self subclassResponsibility:_cmd];
return 0;
}
- (unsigned long long)unsignedLongLongValue
{
[self subclassResponsibility:_cmd];
return 0;
}
- (unsigned long)unsignedLongValue
{
[self subclassResponsibility:_cmd];
return 0;
}
- (unsigned short)unsignedShortValue
{
[self subclassResponsibility:_cmd];
return 0;
}
- (NSComparisonResult)compare:(NSNumber *)otherNumber
{
[self subclassResponsibility:_cmd];
return 0;
}
// NSCoding (done by subclasses)
- (void)encodeWithCoder:(NSCoder *)coder
{
[super encodeWithCoder:coder];
}
- (id)initWithCoder:(NSCoder *)coder
{
[NSException raise:NSInconsistentArchiveException
format:@"Cannot unarchive from NSNumber class - Need NSValueDecoder."];
return self;
}
- description
{
/* xxx This could be better integrated into concrete subclasses. */
return [NSString stringWithFormat: @"%d", [self intValue]];
}
@end
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