Thread: input mail

i have function test input mail, but when i have run it, error happen thats Assertion, can you help me, fix it, i dont know fix where.thanks

Code:

//CheckerMail.h"
#include"string"
using namespace std;
class CIMail{

public :
	static bool checkpart1(char &chr);
	static bool checkpart2(string &str);
	static bool checkpart3(string &str);
	//static bool checkpart4(string &str);
	static int checkchar(string &str);

};
//CheckerMail.cpp"

#include "string"
#include <iostream>
#include "CheckerMail.h"
using namespace std;
bool CheckerMail::checpart1(string &par1){
	if(par1.length()==0)return false;
	int k=indexdot(par1);
	for(int i=k+1;i<sizeof(par1);i++)
		if(check(par1[i])){
			return true;
		}
		return false;
}

bool CheckerMail::checper2(string &par2){
	if(par2.length()==0)return false;
	int h=indexa(par2);
	int j=indexdot(par2);
	for(int i=h+1;i<j;i++)
	if(check(par2[i])||(par2[i]=='.')||(par2[i]=='_')){
		return true;
	}
	return false;
	//return true;
}
//
bool CheckerMail::checper3(string &par3){
		if(par3.length()==0)return false;
	int index=indexa(par3);
	for(int i=0;i<index;i++)
		if(check(par3[i])||(par3[i]=='%')||(par3[i]=='+')||(par3[i]=='-')||(par3[i]=='.')||(par3[i]=='_')){
		return true;
		}
	return false;
}
//
int CheckerMail::indexa(std::string &str){
	for(int i=0;i<sizeof(str);i++){
		if(str[i]=='@')return i;
	}
	return 0;

}
int CheckerMail::indexdot(std::string &str){
	int k=0;
	for(int i=0;i<sizeof(str);i++){
			if(str[i]=='.')
				return i;
	}
	//return k;
	return 0;

}
//@
bool CheckerMail::check(char &par){
	if((par>='a')&&(par<='z')||((par>='A')&&(par<='Z')))
		return true;
	return false;

}
//
bool CheckerMail::checmain(std::string &par){
	if(!checper2(par)||!checper3(par)||!checpart1(par))return false;
		return true;
	//return false;

}
///main 
#include "string"
#include <iostream>
#include "CheckerMail.h"
using namespace std;
void main(){

string str;
	cin>>str;
	cout<<CheckerMail::checmain(str);

}

- All of your "#include "string""s should be "#include <string>".
- "CheckerMail.h" declares some class "CIMail", but that class is never used. You probably want this class to be called "CheckerMail".
- When you rename the class above, all your signatures will not match any more (not that they do now)--in the header you declare them as static, but in its implementation ("CheckerMail.cpp") they are not static. You probably want them all to be static.
- Also when you rename the above class, the names of the functions dont even match and you dont have them all declared in the header. Your using stuff like "CheckerMail::checmain" and "CheckerMail::indexa" among a number of other functions that arent declared in the header.
- In your header the functions are something with the word "part" in it, but your calling some with "part" and some with "per".
- "void main()" should be "int main(void)", also good idea to add a "return x" at the end of main, for some "int x"

Basically I have no clue what your doing. What compiler are you using and how were you even able to run this?