Creating an empty .zip file in C++

by

The stated problem, that no file is created, is impossible to answer with the information given. It is most likely due to an invalid file path. However, the OP states in a comment that the path in his example is not the real code.

EDIT: the hex string example that I cited originally was wrong, I just tested.

This code works:

#include <stdio.h>

auto main() -> int
{
    FILE* f = fopen("foo.zip", "wb");
    //fwrite( "\x80\x75\x05\x06\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 22, 1, f );
    fwrite( "\x50\x4B\x05\x06\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 22, 1, f );
    fclose(f);
}

Harumph, one cannot even trust Stack Overflow comments. Not to mention accepted answers.

Original text:

Assuming that the OP now has edited the code so that the part below is the real code, then this constant

{80, 75, 5, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}

is not identical to

"\x80\x75\x05\x06\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"

Can the OP spot the relevant difference?

Further, given that, can the OP infer anything about his source of information?

My example from a comment elsewhere.

More Related Contents:

  1. Create a directory if it doesn’t exist
  2. program to delete certain text which is predefined in another file from a file in c++
  3. How can I get the list of files in a directory using C or C++?
  4. The program can’t start because libgcc_s_dw2-1.dll is missing
  5. How do I get console output in C++ with a Windows program?
  6. How to convert std::string to LPCSTR?
  7. How can I detect only deleted, changed, and created files on a volume?
  8. know if .lib is static or import
  9. DLL redirection using manifests
  10. How to read output from cmd.exe using CreateProcess() and CreatePipe()
  11. Windows/C++: Is it possible to find the line of code where exception was thrown having “Exception Offset”
  12. How do I get the window handle of the desktop?
  13. Read file names from a directory
  14. What is the purpose of the _chkstk() function?
  15. Clang C++ Cross Compiler – Generating Windows Executable from Mac OS X
  16. How do I add the MinGW bin directory to my system path?
  17. Programmatically access CPU fan on a laptop? (Windows)
  18. changing the directory from inside a c program under windows using system command
  19. What’s the differences between .dll , .lib, .h files?
  20. VC++ fatal error LNK1168: cannot open filename.exe for writing
  21. Get base address of process
  22. How can CString be passed to format string %s?
  23. How to check if a file is already open by another process in C?
  24. EnumDisplayDevices vs WMI Win32_DesktopMonitor, how to detect active monitors?
  25. C++: Where does the ofstream class save the files to?
  26. Windows C/C++ Crypto API Examples and tips
  27. OpenSSL::SSL_library_init() memory leak
  28. System() calls in C++ and their roles in programming
  29. Why does wide file-stream in C++ narrow written data by default?
  30. Globbing in C++/C, on Windows

Leave a Comment