데블스캠프2011/셋째날/String만들기/김준석 (rev. 1.2)
소스 코드 ¶
#include<iostream>
using namespace std;
class String{
private :
char *value;
int offset;
int count;
public :
String(){
value = NULL;
offset = 0;
count = 0;
}
String(const char *original){
offset = 0;
count = strlen(original);
count++;
value = new char[count];
strcpy(value,original);
}
String(const String& str, const int offset,const int count){
//예외처리점...
if(offset >= this->count){
this->value = '\0';
}
else{
this->value = str.value + offset;
}
this->offset = 0;
this->count = count;
}
void print(){
cout << "Value : " ;
for(int i =0;i<count;i++){
cout << *(value+i);
}
}
char charAt(const int at){
if(at>count) return '\0';
//길이에 따른 예외처리 필요함.
return value[at];
}
int indexOf(String& str){
for(int i =0; i < this->count; i++){
int select = -1;
if(this->charAt(i) == str.charAt(0)){
select = i;
for(int j = 0; j < str.count-1;j++){
//크기 예외처리
if(this->charAt(select + j) != str.charAt(j)) select = -1;
}
if(select != -1) return select;
}
}
return -1;
}
int lastIndexOf(String& str){
int choice = -1;
for(int i =0; i < this->count; i++){
int select = -1;
if(this->charAt(i) == str.charAt(0)){
select = i;
for(int j = 0; j < str.count-1;j++){
//크기 예외처리
if(this->charAt(select + j) != str.charAt(j)) select = -1;
}
if(select != -1) choice = select;
}
}
if(choice != -1) return choice;
return -1;
}
bool isEmpty(){
if(count == 0) return true;
else return false;
}
int compareTo(const char * compare){
String * temp = new String(compare);
if(this->equals(*temp)) return 0;
else return -1;
//ㅋㅋ 야매임.
}
void concat(String& str){
int tempCount = this->count + str.count -2 + 1;
char * temp = new char[tempCount];
strcpy(temp,this->value);
strcat(temp,str.value);
this->value = temp;
this->count = tempCount;
//완료?? 아마도?
}
int length(){
return this->count;
}
String * subString(int offset, int count){
char * temp = new char[count+1];
//크기 예외처리
char * offvalue = this->value+ offset;
for(int i =0;i< count;i++)
*(temp + i) = *(offvalue+i);
temp[count] = '\0';
return new String(temp);
}
bool equals(String& str){
if(this->count != str.count) return false;
char * temp = this->value + this->offset;
char * temp2 = str.value + str.offset;
for(;*temp != '\0'; temp++,temp2++){
if(*temp != *temp2) return false;
}
return true;
}
};
int main(){
String * s = new String("abcdefgh");
String * s2 = new String("de");
if(s->subString(3,2)->equals(*s2)) cout << "꾸엑" <<endl;
//cout << s->lastIndexOf(*s2) << endl;
return 0;
}