newlib/libc/stdio/swprint_r.c

   1 #include <newlib.h>
   2
   3 #ifdef _FVWRITE_IN_STREAMIO
   4
   5 #include <reent.h>
   6 #include <stdio.h>
   7 #include <wchar.h>
   8 #include "fvwrite.h"
   9
  10 /*
  11  * Flush out all the vectors defined by the given uio,
  12  * then reset it so that it can be reused.
  13  */
  14 int
  15 __swprint_r (struct _reent *ptr,
  16        FILE *fp,
  17        register struct __suio *uio)
  18 {
  19         register int err = 0;
  20         struct __siov *iov;
  21         wchar_t *p;
  22         int i, len;
  23
  24         if (uio->uio_resid == 0) {
  25                 uio->uio_iovcnt = 0;
  26                 return (0);
  27         }
  28         iov = uio->uio_iov;
  29         for (; uio->uio_resid != 0;
  30              uio->uio_resid -= len, iov++) {
  31                 p = (wchar_t *) iov->iov_base;
  32                 len = iov->iov_len;
  33                 for (i = 0; i < len; i++) {
  34                         if (_fputwc_r (ptr, p[i], fp) == WEOF) {
  35                                 err = -1;
  36                                 goto out;
  37                         }
  38                 }
  39         }
  40 out:
  41         uio->uio_resid = 0;
  42         uio->uio_iovcnt = 0;
  43         return (err);
  44 }
  45
  46 #endif