src/regression/fgetwc-buffering.c

   1 // decode across buffer boundary
   2 #include <stdio.h>
   3 #include <locale.h>
   4 #include <wchar.h>
   5 #include <unistd.h>
   6 #include <errno.h>
   7 #include <string.h>
   8 #include "test.h"
   9
  10 #define A(c) do { if (!(c)) t_error(#c" failed\n"); } while(0)
  11
  12 int main()
  13 {
  14         t_setutf8();
  15
  16         int p[2];
  17         A(pipe(p) == 0);
  18         A(write(p[1], "x\340\240", 3) == 3);
  19         A(dup2(p[0], 0) == 0);
  20         wint_t wc;
  21         wc = fgetwc(stdin);
  22         A(wc == 'x');
  23         A(write(p[1], "\200", 1) == 1);
  24         close(p[1]);
  25
  26         wc = fgetwc(stdin);
  27         if (wc != 0x800)
  28                 t_error("wanted 0x800, got 0x%x\n", (unsigned)wc);
  29
  30         errno = 0;
  31         wc = fgetwc(stdin);
  32         if (wc != WEOF)
  33                 t_error("wanted WEOF, got 0x%x\n", (unsigned)wc);
  34         if (errno != 0)
  35                 t_error("wanted errno==0, got %d (%s)\n", errno, strerror(errno));
  36         A(feof(stdin)!=0);
  37         A(ferror(stdin)==0);
  38         return t_status;
  39 }