Function cfexist

cfile/cfile.cpp:634–648

Tells if the file exists Returns non-zero if file exists. Also tells if the file is on disk or in a hog - See return values in cfile.h

// Returns non-zero if file exists.  Also tells if the file is on disk
//	or in a hog -  See return values in cfile.h
int cfexist(const std::filesystem::path &filename) {
  CFILE *cfp;
  int ret;

  cfp = cfopen(filename, "rb");
  if (!cfp) {              // Didn't get file.  Why?
    if (errno == EACCES)   // File exists, but couldn't open it
      return CFES_ON_DISK; // so say it exists on the disk

    return CFES_NOT_FOUND; // Say we didn't find the file
  }
  ret = cfp->lib_offset ? CFES_IN_LIBRARY : CFES_ON_DISK;
  cfclose(cfp);
  return ret;
}
// Reads the specified number of bytes from a file into the buffer
// DO NOT USE THIS TO READ STRUCTURES.  This function is for byte
// data, such as a string or a bitmap of 8-bit pixels.