tedschnieders
asked on
i need to know how to write a simple program that reads ascII characters in c++
i need to know how to write a simple program that reads ascII characters from the keyboard packs them into a simple four byte integer and then display the value as hex
if someone can please help me
if someone can please help me
ASKER CERTIFIED SOLUTION
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a simple "brute force" starting point:
char c1,c2,c3,c4;
c1 = getch();
c2 = getch();
c3 = getch();
c4 = getch();
unsigned int pack;
pack = c1 | (c2<<8) | ..... // etcetera
char c1,c2,c3,c4;
c1 = getch();
c2 = getch();
c3 = getch();
c4 = getch();
unsigned int pack;
pack = c1 | (c2<<8) | ..... // etcetera
ASKER
can you just show me how you can use cout<< and cin>> to get the information and ouput it in hex
sorry i am a beginner and not to familiar with C++
sorry i am a beginner and not to familiar with C++
to display an hex number:
int yournumber;
// some processing here
cout <<hex << yournumber;
To trap keys use getch() as shown, or use:
string buffer;
cin.getline(buffer);
To read an entire buffer and process later.
int yournumber;
// some processing here
cout <<hex << yournumber;
To trap keys use getch() as shown, or use:
string buffer;
cin.getline(buffer);
To read an entire buffer and process later.
tedschnieders,
two ways of doing this easy:
#include <iostream>
using namespace std;
int main()
{
cout << "Please enter four ASCII characters: ";
char Num[500]; //<--- You must dimension proper size
gets(Num);
// do something ...
// integer array
int iNum[500];
for ( int i = 0; i < strlen ( Num ); i++ )
{
iNum[i] = Num[i];
}
for ( i = 0; i < strlen ( Num ); i++ )
{
cout << "0x" << hex << iNum[i] << endl;
}
return 0;
}
OR
#include <iostream>
#include <stdio.h>
using namespace std;
int main()
{
cout << "Please enter four ASCII characters: ";
char Num[500]; //<--- You must dimension proper size
gets(Num);
// do something ...
for ( int i = 0; i < strlen ( Num ); i++ )
{
printf ( "0x%x\n", Num[i] );
}
return 0;
}
two ways of doing this easy:
#include <iostream>
using namespace std;
int main()
{
cout << "Please enter four ASCII characters: ";
char Num[500]; //<--- You must dimension proper size
gets(Num);
// do something ...
// integer array
int iNum[500];
for ( int i = 0; i < strlen ( Num ); i++ )
{
iNum[i] = Num[i];
}
for ( i = 0; i < strlen ( Num ); i++ )
{
cout << "0x" << hex << iNum[i] << endl;
}
return 0;
}
OR
#include <iostream>
#include <stdio.h>
using namespace std;
int main()
{
cout << "Please enter four ASCII characters: ";
char Num[500]; //<--- You must dimension proper size
gets(Num);
// do something ...
for ( int i = 0; i < strlen ( Num ); i++ )
{
printf ( "0x%x\n", Num[i] );
}
return 0;
}
ASKER
The assignment that i cant figgure out is i have to create a program that reads four ascII characters from the keyboard and packs them into a single four byte integer. then display the value as hex and output them in reverse order with low byte first.