Server : Apache/2.4.41 (Ubuntu) System : Linux absol.cf 5.4.0-198-generic #218-Ubuntu SMP Fri Sep 27 20:18:53 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.33 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /usr/share/emscripten/tests/core/

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#include <stdio.h>
#include <stdlib.h>

int main() {
  FILE *fh;

  fh = fopen("a.txt", "wb");
  if (!fh) exit(1);
  fclose(fh);

  fh = fopen("a.txt", "rb");
  if (!fh) exit(1);

  char data[] = "foobar";
  size_t written = fwrite(data, 1, sizeof(data), fh);

  printf("written=%zu\n", written);
}