Foro de elhacker.net

#include <cstdlib>
#include <iostream>
#include <cstring>
 
using namespace std;
 
int main(int argc, char *argv[])
{
 int a=0;
 char dato[80];
 cout<<"Introduce algo"<<endl;
	cin.get(dato,80,'\n');
	while(a<80)
	{
		if(dato[a]=='2')
		{
		cout<<atof(dato[a])<<endl;
			}
		a++;
	}
	return 0;
}

invalid conversion from 'char' to 'const char*'
 initializing argument 1 of 'double atof(const char*)'  

#include <cstdlib>
#include <iostream>
#include <cstring>
 
using namespace std;
 
int main(int argc, char *argv[])
{
 char a_char[10];
  cin>>a_char;
  cout<<"As a float: "<<atof(a_char);
	return 0;
}
 

#include <cstdlib>
#include <iostream>
#include <cstring>
 
using namespace std;
 
int main(int argc, char *argv[])
{
 int a=0;
 float res;
 char dato[80];
 cout<<"Introduce algo"<<endl;
	cin.get(dato,80,'\n');
	while(a<80)
	{
		if(dato[a]=='2')
		{
		res=atof(&dato[a])+5;
		cout<<atof(&dato[a])<<endl;
		cout<<res<<endl;
			}
		a++;
	}
	return 0;
}

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