Passing the adress of a single item of a char array

[Dennis Plöger]

Hi all!

I'm currently having some problems parsing a char array in c++. (And
yes, I'm a half-newbie ;-)) Perhaps you can help me with this:

#include <iostream>

using std::cout;

void outchar(char *outcharstring)
{
cout << outcharstring;
}

void ftest(char *teststring)
{
int i=0;

while (teststring[i] != '\0')
{

outchar(&testst ring[i]);
i++;

}

}

int main()
{
char test[]="Hello.";

ftest(test);

}

Of course, this is just a sample program. But basically I would like
to give a function, that needs the adress of a string, a char, that is
one item of another string.

The output of the code above is:
Hello.ello.llo. lo.o..

What I would like is just "Hello.". How can I accomplish this?

Thanks everybody.

Dennis

[Chris Dams]

pl*****@pharmlo g.de (=?ISO-8859-1?Q?Dennis_Pl=F 6ger?=) writes:

Hello,

int main()
{
char test[]="Hello."; ftest(test); } What I would like is just "Hello.". How can I accomplish this?

What about calling outchar instead of ftest?

Bye,
Chris Dams

[Wolfgang Senfter]

What I would like is just "Hello.". How can I accomplish this? void outchar(char *outcharstring)
{
cout << outcharstring;
}

void outchar(char outchar)
{
cout << outchar;
}

so you give only one char to the function. or use your function istead of
ftest

[Chris Theis]

"Chris Dams" <ch****@gamow.s ci.kun.nl> wrote in message
news:bk******** **@gamow.sci.ku n.nl...

pl*****@pharmlo g.de (=?ISO-8859-1?Q?Dennis_Pl=F 6ger?=) writes:

Hello,

int main()
{

char test[]="Hello.";

ftest(test);

}

What I would like is just "Hello.". How can I accomplish this?

What about calling outchar instead of ftest?

Great idea! Probably the OP wants to output the string character by
character, what do you think?

Chris

[Christopher Benson-Manica]

Dennis Plöger <pl*****@pharml og.de> spoke thus:

I'm currently having some problems parsing a char array in c++. (And
yes, I'm a half-newbie ;-)) Perhaps you can help me with this:
I'll try...
void outchar(char *outcharstring)
{
cout << outcharstring;
}
void ftest(char *teststring)
{
int i=0;
while (teststring[i] != '\0')
{
outchar(&testst ring[i]);
i++;
}
} Of course, this is just a sample program. But basically I would like
to give a function, that needs the adress of a string, a char, that is
one item of another string. The output of the code above is:
Hello.ello.llo. lo.o..

This is because you're giving the << operator a character pointer...

Hello.\0
^ <- Give this character pointer to cout and you get "Hello."

Hello.\0
^ <- Increment the character pointer - you still have a string, so
"ello." is what gets printed by outchar.

Hello.\0
^ <- Prints "llo." (etc.)

Did that help? cout has the put() member function that allows you to write
one character at a time - presumably what you wanted outchar() to do...

#include <iostream>

using namespace std;

void ftest( char *teststring )
{
int i=0;
char *cp=teststring;
while( *cp ) {
cout.put( *cp++ );
}
cout << endl;
}

int main( void )
{
char *test="Hello.";
ftest( test );
return( EXIT_SUCCESS );
}

--
Christopher Benson-Manica | Jumonji giri, for honour.
ataru(at)cybers pace.org |

[Christopher Benson-Manica]

Christopher Benson-Manica <at***@nospam.c yberspace.org> spoke thus:

return( EXIT_SUCCESS );

Um, I don't know which C++ header defines EXIT_SUCCESS - in C it was stdio.h.
If someone could tell me what it is, I'd appreciate it...

--
Christopher Benson-Manica | Jumonji giri, for honour.
ataru(at)cybers pace.org |

[Christopher Benson-Manica]

Christopher Benson-Manica <at***@nospam.c yberspace.org> spoke thus:

return( EXIT_SUCCESS );

Um, I don't know which C++ header defines EXIT_SUCCESS - in C it was stlib.h.
If someone could tell me what it is, I'd appreciate it...

--
Christopher Benson-Manica | Jumonji giri, for honour.
ataru(at)cybers pace.org |

[Christopher Benson-Manica]

Dennis Plöger <pl*****@pharml og.de> spoke thus:

I'm currently having some problems parsing a char array in c++. (And
yes, I'm a half-newbie ;-)) Perhaps you can help me with this:
I'll try...
void outchar(char *outcharstring)
{
cout << outcharstring;
}
void ftest(char *teststring)
{
int i=0;
while (teststring[i] != '\0')
{
outchar(&testst ring[i]);
i++;
}
} Of course, this is just a sample program. But basically I would like
to give a function, that needs the adress of a string, a char, that is
one item of another string. The output of the code above is:
Hello.ello.llo. lo.o..

This is because you're giving the << operator a character pointer...

Hello.\0
^ <- Give this character pointer to cout and you get "Hello."

Hello.\0
^ <- Increment the character pointer - you still have a string, so
"ello." is what gets printed by outchar.

Hello.\0
^ <- Prints "llo." (etc.)

Did that help? cout has the put() member function that allows you to write
one character at a time - presumably what you wanted outchar() to do...

#include <iostream>
#include <cstdlib>

using namespace std;

void ftest( char *teststring )
{
int i=0;
char *cp=teststring;
while( *cp ) {
cout.put( *cp++ );
}
cout << endl;
}

int main( void )
{
char *test="Hello.";
ftest( test );
return( EXIT_SUCCESS );
}

--
Christopher Benson-Manica | Jumonji giri, for honour.
ataru(at)cybers pace.org |

[Kevin Goodsell]

Christopher Benson-Manica wrote:

Christopher Benson-Manica <at***@nospam.c yberspace.org> spoke thus:

return( EXIT_SUCCESS );

Um, I don't know which C++ header defines EXIT_SUCCESS - in C it was stlib.h.
If someone could tell me what it is, I'd appreciate it...

It's still in <stdlib.h> (deprecated), and also in <cstdlib>.

-Kevin
--
My email address is valid, but changes periodically.
To contact me please use the address from a recent posting.

[Dennis Plöger]

Hi all!

Thank you for now.

The problem is, that I take the sample "outchar"-function from a
library (namely the sdlttf-library), which takes the argument as a *
char to generate a surface using a TrueType-font (as a backnote). So I
really need to give the function a single char.

Perhaps some other ideas?

Bye,
Dennis