How can I get a file’s size in C? [duplicate]

by

You need to seek to the end of the file and then ask for the position:

fseek(fp, 0L, SEEK_END);
sz = ftell(fp);

You can then seek back, e.g.:

fseek(fp, 0L, SEEK_SET);

or (if seeking to go to the beginning)

rewind(fp);

More Related Contents:

  1. how to enter a function to a file in c
  2. How can I get a text file into a string but whith the “\n” in C?
  3. Reading and analyzing rooms from text file
  4. Why is “while ( !feof (file) )” always wrong?
  5. How do you determine the size of a file in C?
  6. How does free know how much to free?
  7. How to read the content of a file to a string in C?
  8. Download file using libcurl in C/C++
  9. __FILE__ macro shows full path
  10. what’s the differences between r and rb in fopen
  11. Why does stat fail using a name from readdir? [duplicate]
  12. C pointers : pointing to an array of fixed size
  13. File I/O with streams – best memory buffer size
  14. Why is “while( !feof(file) )” always wrong?
  15. How to use EOF to run through a text file in C?
  16. How do you get a directory listing in C?
  17. Using fseek with a file pointer that points to stdin
  18. Getting terminal size in c for windows?
  19. practical examples use dup or dup2
  20. fcntl, lockf, which is better to use for file locking?
  21. Trouble reading a line using fscanf()
  22. size of array in c
  23. What exactly is the FILE keyword in C?
  24. How to buffer stdout in memory and write it from a dedicated thread
  25. Append to the end of a file in C
  26. Does fread move the file pointer?
  27. How can I change the size of an array in C?
  28. How to read all files in a folder using C
  29. Why is the size of a function in C always 1 byte?
  30. How to declare a structure in a header that is to be used by multiple files in c?

Leave a Comment