write « fwrite « C File Q&A

1. Why is fwrite writing more than I tell it to?    stackoverflow.com

FILE *out=fopen64("text.txt","w+");
unsigned int write;
char *outbuf=new char[write];
//fill outbuf
printf("%i\n",ftello64(out));
fwrite(outbuf,sizeof(char),write,out);
printf("%i\n",write);
printf("%i\n",ftello64(out));

0
25755
25868

2. writing stdin into a file with fwrite()    stackoverflow.com

I have to capture the stdout in a program and write that into a file...so I created a pipe. In the parent process, I captured the stdout in the pipe ...

3. How to make fwrite() consistent in writing data to a file    stackoverflow.com

I am writing data to a file, however on sudden power offs I can see garbage data in the file sometimes. Sometimes the data is missing, sometimes it is editted and sometimes ...

4. write XImage to .bmp file in C    stackoverflow.com

I am writing an XImage to a file "bitmap0.bmp" using the following code but when i open the newly created file with imageViewer in fedora it gives "Premature end of file" ...

5. fwrite() does not write data to file    bytes.com

arnuld WANTED: Even if I do Ctrl-C in the middle of fgets(), fwrite() should write the previously entered data to a file (except if I hit the file-size limit) PROBLEM: If I do a Ctrl-C in the middle of fgets(). fwrite() does not write the data to the file. #include #include #include #include enum { INPUT_SIZE = ...

6. Trouble writing to file using fwrite()    cboard.cprogramming.com

I have a "random-access" file, hardware.dat constructed with 100 entries. What I'm trying to do is use my setRecord() function to modify one of the entrys in "hardware.dat." This is where I'm having problems. No matter what I do I can't get setRecord to modify the file. I thought it might be because I'm opening the file with the "a+" attribute ...

7. Writing a series of 8-bit numbers to disk with fwrite    cboard.cprogramming.com

Code: #include #include int main() { double t; int i = 0; for ( i = 0, t = 0.0; i < 100; t += 0.1, ++i ) { char value = floor(127.0 * sin(t) + 0.5); printf("%6d", (int)value); putchar(i % 10 == 9 ? '\n' : ' '); } return 0; } /* my output 0 13 25 ...

8. fwrite not writing all data to file    daniweb.com

9. fwrite writing garbage value    daniweb.com