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-rw-r--r--libio/bug-ftell.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/libio/bug-ftell.c b/libio/bug-ftell.c
new file mode 100644
index 0000000000..f7a9a776a2
--- /dev/null
+++ b/libio/bug-ftell.c
@@ -0,0 +1,56 @@
+#include <locale.h>
+#include <stdio.h>
+#include <wchar.h>
+
+
+static int
+do_test (void)
+{
+ if (setlocale (LC_ALL, "de_DE.UTF-8") == NULL)
+ {
+ puts ("setlocale failed");
+ return 1;
+ }
+
+ FILE *fp = tmpfile ();
+ if (fp == NULL)
+ {
+ puts ("tmpfile failed");
+ return 1;
+ }
+
+ if (fputws (L"hello", fp) == EOF)
+ {
+ puts ("fputws failed");
+ return 1;
+ }
+
+ rewind (fp);
+
+ wchar_t *cp;
+ unsigned int cnt;
+ for (cp = L"hello", cnt = 1; *cp != L'\0'; ++cp, ++cnt)
+ {
+ wint_t wc = fgetwc (fp);
+ if (wc != (wint_t) *cp)
+ {
+ printf ("fgetwc failed: got L'%lc', expected L'%lc'\n", wc, *cp);
+ return 1;
+ }
+ off_t o = ftello (fp);
+ if (o != cnt)
+ {
+ printf ("ftello failed: got %lu, expected %u\n",
+ (unsigned long int) o, cnt);
+ return 1;
+ }
+ printf ("round %u OK\n", cnt);
+ }
+
+ fclose (fp);
+
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"