defaultBehavior

INDEX>Foundation>NSDecimalNumber

初期設定の丸め動作（四捨五入・切り上げ・切り捨て）を返します

Objective-C

+ (id<NSDecimalNumberBehaviors>)defaultBehavior

Swift

class func defaultBehavior() -> NSDecimalNumberBehaviors

解説

初期設定の丸め動作（四捨五入・切り上げ・切り捨て）を返します。

返り値

Objective-C

( id <NSDecimalNumberBehaviors> )

Swift

NSDecimalNumberBehaviors

十進数オブジェクト

引数

フレームワーク

Foundation

クラス

NSDecimalNumber

使用可能

10.0

参照

例文

Objective-C

#import "MyObject.h"

@implementation MyObject

- (IBAction)myAction:(id)sender
{
NSNumberFormatter *numFormat = [[NSNumberFormatter alloc] init] ;
NSDecimalNumber *dNum1 = [[[NSDecimalNumber alloc] autorelease] initWithString:@"3000"];
NSDecimalNumber *dNum2 = [[[NSDecimalNumber alloc] autorelease] initWithString:@"200"];
NSDecimalNumber *dNum = [[NSDecimalNumber alloc] autorelease];

dNum = [dNum1 decimalNumberByAdding:dNum2 withBehavior:[NSDecimalNumber defaultBehavior]];

[numFormat setMaximum:dNum];
[numFormat setPositiveFormat:@"#,##0.00"];
[myOutlet setFormatter:numFormat];

NSLog([NSString stringWithFormat:@"%.2f",[[numFormat maximum] doubleValue]]);
NSLog([[NSDecimalNumber defaultBehavior] className]);
}

@end

Swift

    //NSDecimalNumber decimalNumberByAdding:withBehavior:
    //http://cocoaapi.hatenablog.com/entry/00130527/Foundation_NSDecimalNumber_decimalNumberByAdding_withBehavior_
    //NSDecimalNumber defaultBehavior
    //
    @IBAction func function015(sender: AnyObject) {
        let dNum1 : NSDecimalNumber =
        NSDecimalNumber(string: "600")
        let dNum2 : NSDecimalNumber =
        NSDecimalNumber(string: "20")
        let dNum : NSDecimalNumber = dNum1.decimalNumberByAdding(dNum2, withBehavior: NSDecimalNumber.defaultBehavior())
        let numFormat : NSNumberFormatter = NSNumberFormatter()
        numFormat.minimum = dNum    //最小値が620
        numFormat.positiveFormat = "#,##0.00"
        textField.formatter = numFormat
        NSLog("function015")
        commentLabel.stringValue = "←最小値が600+20=620(defaultBehavior)"
    }

編集時のバージョン

OS X 10.11
Swift2.0