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-rw-r--r--stdio-common/bug16.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/stdio-common/bug16.c b/stdio-common/bug16.c
new file mode 100644
index 0000000000..84269f3b6d
--- /dev/null
+++ b/stdio-common/bug16.c
@@ -0,0 +1,43 @@
+#include <stdio.h>
+#include <string.h>
+
+struct
+{
+ long double val;
+ const char str[4][7];
+} tests[] =
+{
+ { 0x0.FFFFp+0L, { "0X1P+0", "0X2P-1", "0X4P-2", "0X8P-3" } },
+ { 0x0.FFFFp+1L, { "0X1P+1", "0X2P+0", "0X4P-1", "0X8P-2" } },
+ { 0x0.FFFFp+2L, { "0X1P+2", "0X2P+1", "0X4P+0", "0X8P-1" } },
+ { 0x0.FFFFp+3L, { "0X1P+3", "0X2P+2", "0X4P+1", "0X8P+0" } }
+};
+
+static int
+do_test (void)
+{
+ char buf[100];
+ int ret = 0;
+
+ for (size_t i = 0; i < sizeof (tests) / sizeof (tests[0]); ++i)
+ {
+ snprintf (buf, sizeof (buf), "%.0LA", tests[i].val);
+
+ size_t j;
+ for (j = 0; j < 4; ++j)
+ if (strcmp (buf, tests[i].str[j]) == 0)
+ break;
+
+ if (j == 4)
+ {
+ printf ("%zd: got \"%s\", expected \"%s\" or equivalent\n",
+ i, buf, tests[i].str[0]);
+ ret = 1;
+ }
+ }
+
+ return ret;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"