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Joenerd · Guest

I have had some difficulty reading a text from a file with Visual
Studio's Win32 Console Application. When I build the code it gives no
errors but when I run the code...nothing happens. Instead, an empty
text file is created.Even when I create a text file with words, the run
code deletes its contents and gives me back an empty text file. Below
are two variants of the code I've been puzzling with. Can someone throw
me a bone? Thanks.

Joseph

1.

#include <iostream>
#include<fstream>
#include<cstdio>
#include<string>
using namespace std;

int main()
{
string word;
char c;
ifstream infile;
ofstream outfile;
FILE *texter=fopen("texter.txt","r");

if (infile.fail())
{
cout<<"could not open file"< exit(0);
}

while (infile>>word)
{
if (word[0]>='a' && word[0]<='z')word[0] +='A'-'a';
outfile< infile.get(c);
outfile.put(c);
}
return 0;

}

2.
#include #include <fstream>
#include<string>
#include <cstdio>
using namespace std;

main ()
{
ifstream infile("Text1.txt");
ofstream outfile("Text1.txt");
string word;
char c;
while (infile>>word)
{
if (word[0]>='a'&&word[0]<='z')word[0]+='A'-'a';
outfile<< word;
infile.get(c);
outfile.put(c);
}
return 0;

}

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kanze@gabi-soft.fr · Guest

Joenerd wrote:

Ulrich Eckhardt · Guest

Joenerd wrote:

Simon Bone · Guest

On Thu, 28 Jul 2005 07:13:22 -0400, Joenerd wrote:

Dietmar Kuehl · Guest

Joenerd wrote:

kanze@gabi-soft.fr · Guest

Simon Bone wrote:

[...]

kanze@gabi-soft.fr · Guest

Dietmar Kuehl wrote:

pillbug · Guest

seems to me you just need some simple examples on how to read
and write files. this compiled with vc6.

#include <io.h>
#include <fcntl.h>
#include <cstdio>
#include <fstream>
// theres no error checking here.

// uses primitives
void printout (const char* filename)
{
int fd = open (filename, O_RDONLY);
int nb;
char cbuf [256];

while ((nb = read (fd, cbuf, 256)) > 0)
write (1, cbuf, nb); // 1 means stdout

close (fd);
}

// uses c stream io
void createafile (const char* filename)
{
FILE* fp = fopen (filename, "w");

fprintf (fp, "%sn", "insert entire text of c++ standard here");

fclose (fp);
}

// uses c++ stream io
void copyfile (const char* infile, const char* outfile)
{
std::ifstream fin (infile);
std::ofstream fout (outfile);

fout << fin.rdbuf();

fin.close();
fout.close();
}

int main (int argc, char** argv)
{
createafile ("file.txt");
copyfile ("file.txt", "another.txt");
printout ("another.txt");
return 0;
}

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