00001 //Filename : OHistory.h 00002 //Description : Constants for Finance Class Declaration; 00003 // For inflation rate, interest rate, etc, in HE.response_func->Time_Variation 00004 //Ower : Fred 00005 00006 #ifndef __OHISTORY_H 00007 #define __OHISTORY_H 00008 00009 enum { 00010 FA_HISTORY_YEAR = 12, 00011 //FA_THIS_MONTH = FA_HISTORY_YEAR-1, 00012 }; 00013 00016 struct HistoryData { 00017 // init(char type=FA_HISTORY_YEAR); 00018 int length; 00019 float data[FA_HISTORY_YEAR]; //temp 00020 00021 HistoryData() { 00022 memset(this, 0, sizeof(HistoryData)); 00023 length = FA_HISTORY_YEAR; 00024 } 00025 00026 void init(int len) { 00027 memset(this, 0, sizeof(HistoryData)); 00028 length = FA_HISTORY_YEAR; 00029 }; 00030 00031 void init(int len, float value) { 00032 init(len); 00033 for ( int h=0; h<length; h++) 00034 data[h] = value; 00035 }; 00036 00037 void set_cur(float value) { data[length-1] = value; }; 00038 00039 float get_cur() { return data[length-1]; }; 00040 float oldest_value() { return data[0]; }; 00041 00042 float get(int relativeIndex) { // 0: latest/current data 00043 return data[length-1+relativeIndex]; 00044 }; 00045 00046 void shift_hist() { 00047 for ( int h=0; h<length-1; h++) { 00048 data[h] = data[h+1]; 00049 } 00050 data[length-1] = 0; 00051 }; 00052 00053 float get_sum() { 00054 float sum; int h; 00055 for ( sum=0, h=0; h<length; h++) { 00056 sum += data[h]; 00057 } 00058 return sum; 00059 } 00060 }; 00061 #endif
