//
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// NSDecimalNumber+Addtion.m
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// 有应用应用
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//
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// Created by xuliying on 15/10/15.
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// Copyright (c) 2015年 xly. All rights reserved.
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//
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#import "NSDecimalNumber+Addtion.h"
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@implementation NSDecimalNumber (Addtion)
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+(NSDecimalNumber *)aDecimalNumberWithStringOrNumberOrDecimalNumber:(id)stringOrNumber1 type:(calculationType)type anotherDecimalNumberWithStringOrNumberOrDecimalNumber:(id)stringOrNumber2 andDecimalNumberHandler:(NSDecimalNumberHandler *)handler{
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if (!stringOrNumber2 || !stringOrNumber1) {
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NSLog(@"输入正确类型");
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return nil;
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}
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NSDecimalNumber *one;
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NSDecimalNumber *another;
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NSDecimalNumber *returnNum;
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if ([stringOrNumber1 isKindOfClass:[NSString class]]) {
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one = [NSDecimalNumber decimalNumberWithString:stringOrNumber1];
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}else if([stringOrNumber1 isKindOfClass:[NSDecimalNumber class]]){
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one = stringOrNumber1;
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}else if ([stringOrNumber1 isKindOfClass:[NSNumber class]]){
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one = [NSDecimalNumber decimalNumberWithDecimal:[stringOrNumber1 decimalValue]];
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}else{
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NSLog(@"输入正确的类型");
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return nil;
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}
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if ([stringOrNumber2 isKindOfClass:[NSString class]]) {
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another = [NSDecimalNumber decimalNumberWithString:stringOrNumber2];
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}else if([stringOrNumber2 isKindOfClass:[NSDecimalNumber class]]){
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another = stringOrNumber2;
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}else if ([stringOrNumber2 isKindOfClass:[NSNumber class]]){
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another = [NSDecimalNumber decimalNumberWithDecimal:[stringOrNumber2 decimalValue]];
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}else{
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NSLog(@"输入正确的类型");
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return nil;
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}
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if (type == Add) {
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returnNum = [one decimalNumberByAdding:another];
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}else if (type == Subtract){
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returnNum = [one decimalNumberBySubtracting:another];
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}else if (type == Multiply){
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returnNum = [one decimalNumberByMultiplyingBy:another];
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}else if (type == Divide){
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if ([NSDecimalNumber aDecimalNumberWithStringOrNumberOrDecimalNumber:another compareAnotherDecimalNumberWithStringOrNumberOrDecimalNumber:@(0)] == 0) {
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returnNum = nil;
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}else
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returnNum = [one decimalNumberByDividingBy:another];
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}else{
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returnNum = nil;
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}
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if (returnNum) {
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if (handler) {
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return [returnNum decimalNumberByRoundingAccordingToBehavior:handler];
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}else{
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return returnNum;
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}
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}else{
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NSLog(@"输入正确的类型");
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return nil;
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}
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}
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+(NSComparisonResult)aDecimalNumberWithStringOrNumberOrDecimalNumber:(id)stringOrNumber1 compareAnotherDecimalNumberWithStringOrNumberOrDecimalNumber:(id)stringOrNumber2{
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if (!stringOrNumber2 || !stringOrNumber1) {
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NSLog(@"输入正确类型");
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stringOrNumber2 = @"0.00";
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stringOrNumber1 = @"0.00";
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}
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NSDecimalNumber *one;
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NSDecimalNumber *another;
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if ([stringOrNumber1 isKindOfClass:[NSString class]]) {
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one = [NSDecimalNumber decimalNumberWithString:stringOrNumber1];
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}else if([stringOrNumber1 isKindOfClass:[NSDecimalNumber class]]){
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one = stringOrNumber1;
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}else if ([stringOrNumber1 isKindOfClass:[NSNumber class]]){
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one = [NSDecimalNumber decimalNumberWithDecimal:[stringOrNumber1 decimalValue]];
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}else{
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NSLog(@"输入正确的类型");
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return -404;
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}
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if ([stringOrNumber2 isKindOfClass:[NSString class]]) {
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another = [NSDecimalNumber decimalNumberWithString:stringOrNumber2];
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}else if([stringOrNumber2 isKindOfClass:[NSDecimalNumber class]]){
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another = stringOrNumber2;
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}else if ([stringOrNumber2 isKindOfClass:[NSNumber class]]){
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another = [NSDecimalNumber decimalNumberWithDecimal:[stringOrNumber2 decimalValue]];
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}else{
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NSLog(@"输入正确的类型");
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return -404;
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}
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return [one compare:another];
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}
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+(NSString *)stringWithDecimalNumber:(NSDecimalNumber *)str1 scale:(NSInteger)scale{
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if (!str1) {
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return @"";
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}
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NSString *str = [NSString stringWithFormat:@"%@",str1];
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if (str && str.length) {
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if ([str rangeOfString:@"."].length == 1) {//有小数点
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NSArray *arr = [str componentsSeparatedByString:@"."];
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if (scale > 0) {
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NSInteger count = [arr[1] length];
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for (NSInteger i = count; i<scale; i++) {
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str = [str stringByAppendingString:@"0"];
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}
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return str;
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}else{
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return arr[0];
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}
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}else{//没有小数点
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if ([str rangeOfString:@"."].length) {
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return @"";
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}
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if (scale > 0) {
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str = [str stringByAppendingString:@"."];
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for (int i = 0; i<scale; i++) {
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str = [str stringByAppendingString:@"0"];
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}
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return str;
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}else{
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return str;
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}
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}
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}else{
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return @"";
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}
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}
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NSComparisonResult StrNumCompare(id str1,id str2){
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return [NSDecimalNumber aDecimalNumberWithStringOrNumberOrDecimalNumber:str1 compareAnotherDecimalNumberWithStringOrNumberOrDecimalNumber:str2];
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}
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NSDecimalNumber *handlerDecimalNumber(id strOrNum,NSRoundingMode mode,int scale){
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if (!strOrNum) {
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NSLog(@"输入正确类型");
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return nil;
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}else{
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NSDecimalNumber *one;
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if ([strOrNum isKindOfClass:[NSString class]]) {
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one = [NSDecimalNumber decimalNumberWithString:strOrNum];
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}else if([strOrNum isKindOfClass:[NSDecimalNumber class]]){
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one = strOrNum;
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}else if ([strOrNum isKindOfClass:[NSNumber class]]){
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one = [NSDecimalNumber decimalNumberWithDecimal:[strOrNum decimalValue]];
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}else{
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NSLog(@"输入正确的类型");
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return nil;
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}
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NSDecimalNumberHandler *handler = [NSDecimalNumberHandler decimalNumberHandlerWithRoundingMode:mode scale:scale raiseOnExactness:NO raiseOnOverflow:NO raiseOnUnderflow:NO raiseOnDivideByZero:NO];
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return [one decimalNumberByRoundingAccordingToBehavior:handler];
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}
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}
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NSDecimalNumber *SNAdd(id strOrNum1,id strOrNum2){
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return [NSDecimalNumber aDecimalNumberWithStringOrNumberOrDecimalNumber:strOrNum1 type:Add anotherDecimalNumberWithStringOrNumberOrDecimalNumber:strOrNum2 andDecimalNumberHandler:nil];
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}
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NSDecimalNumber *SNSub(id strOrNum1,id strOrNum2){
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return [NSDecimalNumber aDecimalNumberWithStringOrNumberOrDecimalNumber:strOrNum1 type:Subtract anotherDecimalNumberWithStringOrNumberOrDecimalNumber:strOrNum2 andDecimalNumberHandler:nil];
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}
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NSDecimalNumber *SNMul(id strOrNum1,id strOrNum2){
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return [NSDecimalNumber aDecimalNumberWithStringOrNumberOrDecimalNumber:strOrNum1 type:Multiply anotherDecimalNumberWithStringOrNumberOrDecimalNumber:strOrNum2 andDecimalNumberHandler:nil];
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}
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NSDecimalNumber *SNDiv(id strOrNum1,id strOrNum2){
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return [NSDecimalNumber aDecimalNumberWithStringOrNumberOrDecimalNumber:strOrNum1 type:Divide anotherDecimalNumberWithStringOrNumberOrDecimalNumber:strOrNum2 andDecimalNumberHandler:nil];
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}
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NSComparisonResult SNCompare(id strOrNum1,id strOrNum2){
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return [NSDecimalNumber aDecimalNumberWithStringOrNumberOrDecimalNumber:strOrNum1 compareAnotherDecimalNumberWithStringOrNumberOrDecimalNumber:strOrNum2];
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}
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NSDecimalNumber *SNMin(id strOrNum1,id strOrNum2){
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return SNCompare(strOrNum1, strOrNum2) > 0 ? strOrNum2 : strOrNum1;
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}
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NSDecimalNumber *SNMax(id strOrNum1,id strOrNum2){
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return SNCompare(strOrNum1, strOrNum2) > 0 ? strOrNum1 : strOrNum2;
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}
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NSDecimalNumber *SNAdd_handler(id strOrNum1,id strOrNum2,NSRoundingMode mode,int scale){
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return handlerDecimalNumber(SNAdd(strOrNum1, strOrNum2), mode, scale);
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}
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NSDecimalNumber *SNSub_handler(id strOrNum1,id strOrNum2,NSRoundingMode mode,int scale){
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return handlerDecimalNumber(SNSub(strOrNum1, strOrNum2), mode, scale);
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}
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NSDecimalNumber *SNMul_handler(id strOrNum1,id strOrNum2,NSRoundingMode mode,int scale){
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return handlerDecimalNumber(SNMul(strOrNum1, strOrNum2), mode, scale);
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}
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NSDecimalNumber *SNDiv_handler(id strOrNum1,id strOrNum2,NSRoundingMode mode,int scale){
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return handlerDecimalNumber(SNDiv(strOrNum1, strOrNum2), mode, scale);
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}
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NSDecimalNumber *SNMin_handler(id strOrNum1,id strOrNum2,NSRoundingMode mode,int scale){
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return handlerDecimalNumber(SNMin(strOrNum1, strOrNum2), mode, scale);
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}
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NSDecimalNumber *SNMax_handler(id strOrNum1,id strOrNum2,NSRoundingMode mode,int scale){
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return handlerDecimalNumber(SNMax(strOrNum1, strOrNum2), mode, scale);
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}
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@end
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