CINZY-LAB

/*****************************<br>filename:cy_basic_string.h<br>by:cinzy<br>usage:cy_basic_string<char> string1;<br>*****************************/<br>#ifndef __CY_BASIC_STRING_H<br>#define __CY_BASIC_STRING_H<br>#include <windows.h><br>template<class charT>class cy_basic_string{<br> charT *pStr;<br> unsigned int nSize;<br> unsigned int nLength;
<br> unsigned int cy_strlen(const charT *s){if(s==NULL)return 0;int i=0;while(s[i])i++;return i;}<br> void cy_init(const charT *str){<br>  pStr=NULL;nSize=0;nLength=0;<br>  cy_strcpy(str);<br> }<br> cy_basic_string &cy_strcpy(const charT *str)<br> {<br>  if(str==NULL)return *this;<br>  nLength = cy_strlen(str);<br>  if(nLength>=nSize){<br>   nSize   = (nLength/256+1)*256;<br>   if(pStr)<br>    delete[] pStr;<br>   pStr    = new charT[nSize];<br>  }<br>  if(pStr==NULL||str==NULL)return *this;<br>  charT* temp=pStr;<br>  while(*temp++=*str++);<br>  return *this;<br> }<br> cy_basic_string &cy_strcat(const charT *str)<br> {<br>  if(pStr==NULL||str==NULL)return *this;<br>  int len=cy_strlen(str);<br>  nLength+=len;<br>  if(nLength>=nSize){<br>   nSize   = (nLength/256+1)*256;<br>   charT* temppStr=pStr;<br>   pStr    = new charT[nSize];<br>   cy_strcpy(temppStr);<br>   delete[]temppStr;<br>  }<br>  charT* temp=pStr;//+len-2;<br>  while(*temp)temp++;<br>  while(*temp++=*str++);<br>  //*temp++=0;<br>  return *this;<br> }<br>public:<br> cy_basic_string(){pStr=NULL;nSize=0;nLength=0;}<br> cy_basic_string(charT* str){cy_init(str);}<br> cy_basic_string(const cy_basic_string<charT> &copy){cy_init(copy.pStr);}
<br> ~cy_basic_string(){if(pStr)delete[] pStr;}
<br> operator charT* (){return pStr;}
<br> const cy_basic_string& operator= (const charT * s) {return cy_strcpy(s);}<br> const cy_basic_string& operator+=(const charT * s) {return cy_strcat(s);}<br> const cy_basic_string  operator+ (const charT * s) const{cy_basic_string newString(*this);newString.cy_strcat(s);return newString;}
<br> const cy_basic_string& operator= (const cy_basic_string &right){if(&right!=this)return cy_strcpy(right.pStr);}<br> const cy_basic_string  operator+ (const cy_basic_string &right)const{cy_basic_string newString(*this);newString.cy_strcat(right.pStr);return newString;}<br> const cy_basic_string& operator+=(const cy_basic_string &right){return cy_strcat(right.pStr);}
<br> charT & operator[](int nIndex){{if(nIndex>=0&&nIndex<=nSize)return pStr[nIndex];else return (charT)0;}}<br>};
<br>#endif