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authorZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
committerZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
commit5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch)
tree4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/stdio-common/tstdiomisc.c
parent199fc19d3aaaf57944ef036e15904febe877fc93 (diff)
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Prepare for radical source tree reorganization.zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage directory, REORG.TODO, except for files that will certainly still exist in their current form at top level when we're done (COPYING, COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which are moved to the new directory OldChangeLogs, instead), and the generated file INSTALL (which is just deleted; in the new order, there will be no generated files checked into version control).
Diffstat (limited to 'REORG.TODO/stdio-common/tstdiomisc.c')
-rw-r--r--REORG.TODO/stdio-common/tstdiomisc.c289
1 files changed, 289 insertions, 0 deletions
diff --git a/REORG.TODO/stdio-common/tstdiomisc.c b/REORG.TODO/stdio-common/tstdiomisc.c
new file mode 100644
index 0000000000..89009e0549
--- /dev/null
+++ b/REORG.TODO/stdio-common/tstdiomisc.c
@@ -0,0 +1,289 @@
+#include <float.h>
+#include <math.h>
+#include <stdio.h>
+#include <string.h>
+#include <wchar.h>
+#include <libc-diag.h>
+
+static int
+t1 (void)
+{
+ int n = -1;
+ sscanf ("abc ", "abc %n", &n);
+ printf ("t1: count=%d\n", n);
+
+ return n != 5;
+}
+
+static int
+t2 (void)
+{
+ int result = 0;
+ int n;
+ long N;
+ int retval;
+#define SCAN(INPUT, FORMAT, VAR, EXP_RES, EXP_VAL) \
+ VAR = -1; \
+ retval = sscanf (INPUT, FORMAT, &VAR); \
+ printf ("sscanf (\"%s\", \"%s\", &x) => %d, x = %ld\n", \
+ INPUT, FORMAT, retval, (long int) VAR); \
+ result |= retval != EXP_RES || VAR != EXP_VAL
+
+ /* This function is testing corner cases of the scanf format string,
+ so they do not all conform to -Wformat's expectations. */
+ DIAG_PUSH_NEEDS_COMMENT;
+ DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat");
+ DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat-extra-args");
+
+ SCAN ("12345", "%ld", N, 1, 12345);
+ SCAN ("12345", "%llllld", N, 0, -1);
+ SCAN ("12345", "%LLLLLd", N, 0, -1);
+ SCAN ("test ", "%*s%n", n, 0, 4);
+ SCAN ("test ", "%2*s%n", n, 0, -1);
+ SCAN ("12 ", "%l2d", n, 0, -1);
+ SCAN ("12 ", "%2ld", N, 1, 12);
+
+ n = -1;
+ N = -1;
+ retval = sscanf ("1 1", "%d %Z", &n, &N);
+ printf ("sscanf (\"1 1\", \"%%d %%Z\", &n, &N) => %d, n = %d, N = %ld\n", \
+ retval, n, N); \
+ result |= retval != 1 || n != 1 || N != -1;
+
+ DIAG_POP_NEEDS_COMMENT;
+
+ return result;
+}
+
+static int
+t3 (void)
+{
+ char buf[80];
+ wchar_t wbuf[80];
+ int result = 0;
+ int retval;
+
+ retval = sprintf (buf, "%p", (char *) NULL);
+ result |= retval != 5 || strcmp (buf, "(nil)") != 0;
+
+ retval = swprintf (wbuf, sizeof (wbuf) / sizeof (wbuf[0]),
+ L"%p", (char *) NULL);
+ result |= retval != 5 || wcscmp (wbuf, L"(nil)") != 0;
+
+ return result;
+}
+
+volatile double qnanval;
+volatile long double lqnanval;
+/* A sNaN is only guaranteed to be representable in variables with static (or
+ thread-local) storage duration. */
+static volatile double snanval = __builtin_nans ("");
+static volatile double msnanval = -__builtin_nans ("");
+static volatile long double lsnanval = __builtin_nansl ("");
+static volatile long double lmsnanval = -__builtin_nansl ("");
+volatile double infval;
+volatile long double linfval;
+
+
+static int
+F (void)
+{
+ char buf[80];
+ wchar_t wbuf[40];
+ int result = 0;
+
+ qnanval = NAN;
+
+ /* The %f and %F arguments are in fact constants, but GCC is
+ prevented from seeing this (volatile is used) so it cannot tell
+ that the output is not truncated. */
+ DIAG_PUSH_NEEDS_COMMENT;
+#if __GNUC_PREREQ (7, 0)
+ DIAG_IGNORE_NEEDS_COMMENT (7.0, "-Wformat-truncation");
+#endif
+
+ snprintf (buf, sizeof buf, "%a %A %e %E %f %F %g %G",
+ qnanval, qnanval, qnanval, qnanval,
+ qnanval, qnanval, qnanval, qnanval);
+ result |= strcmp (buf, "nan NAN nan NAN nan NAN nan NAN") != 0;
+ printf ("expected \"nan NAN nan NAN nan NAN nan NAN\", got \"%s\"\n", buf);
+
+ snprintf (buf, sizeof buf, "%a %A %e %E %f %F %g %G",
+ -qnanval, -qnanval, -qnanval, -qnanval,
+ -qnanval, -qnanval, -qnanval, -qnanval);
+ result |= strcmp (buf, "-nan -NAN -nan -NAN -nan -NAN -nan -NAN") != 0;
+ printf ("expected \"-nan -NAN -nan -NAN -nan -NAN -nan -NAN\", got \"%s\"\n",
+ buf);
+
+ snprintf (buf, sizeof buf, "%a %A %e %E %f %F %g %G",
+ snanval, snanval, snanval, snanval,
+ snanval, snanval, snanval, snanval);
+ result |= strcmp (buf, "nan NAN nan NAN nan NAN nan NAN") != 0;
+ printf ("expected \"nan NAN nan NAN nan NAN nan NAN\", got \"%s\"\n", buf);
+
+ snprintf (buf, sizeof buf, "%a %A %e %E %f %F %g %G",
+ msnanval, msnanval, msnanval, msnanval,
+ msnanval, msnanval, msnanval, msnanval);
+ result |= strcmp (buf, "-nan -NAN -nan -NAN -nan -NAN -nan -NAN") != 0;
+ printf ("expected \"-nan -NAN -nan -NAN -nan -NAN -nan -NAN\", got \"%s\"\n",
+ buf);
+
+ infval = DBL_MAX * DBL_MAX;
+
+ snprintf (buf, sizeof buf, "%a %A %e %E %f %F %g %G",
+ infval, infval, infval, infval, infval, infval, infval, infval);
+ result |= strcmp (buf, "inf INF inf INF inf INF inf INF") != 0;
+ printf ("expected \"inf INF inf INF inf INF inf INF\", got \"%s\"\n", buf);
+
+ snprintf (buf, sizeof buf, "%a %A %e %E %f %F %g %G",
+ -infval, -infval, -infval, -infval,
+ -infval, -infval, -infval, -infval);
+ result |= strcmp (buf, "-inf -INF -inf -INF -inf -INF -inf -INF") != 0;
+ printf ("expected \"-inf -INF -inf -INF -inf -INF -inf -INF\", got \"%s\"\n",
+ buf);
+
+ swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]), L"%a %A %e %E %f %F %g %G",
+ qnanval, qnanval, qnanval, qnanval,
+ qnanval, qnanval, qnanval, qnanval);
+ result |= wcscmp (wbuf, L"nan NAN nan NAN nan NAN nan NAN") != 0;
+ printf ("expected L\"nan NAN nan NAN nan NAN nan NAN\", got L\"%S\"\n", wbuf);
+
+ swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]), L"%a %A %e %E %f %F %g %G",
+ -qnanval, -qnanval, -qnanval, -qnanval,
+ -qnanval, -qnanval, -qnanval, -qnanval);
+ result |= wcscmp (wbuf, L"-nan -NAN -nan -NAN -nan -NAN -nan -NAN") != 0;
+ printf ("expected L\"-nan -NAN -nan -NAN -nan -NAN -nan -NAN\", got L\"%S\"\n",
+ wbuf);
+
+ swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]), L"%a %A %e %E %f %F %g %G",
+ snanval, snanval, snanval, snanval,
+ snanval, snanval, snanval, snanval);
+ result |= wcscmp (wbuf, L"nan NAN nan NAN nan NAN nan NAN") != 0;
+ printf ("expected L\"nan NAN nan NAN nan NAN nan NAN\", got L\"%S\"\n", wbuf);
+
+ swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]), L"%a %A %e %E %f %F %g %G",
+ msnanval, msnanval, msnanval, msnanval,
+ msnanval, msnanval, msnanval, msnanval);
+ result |= wcscmp (wbuf, L"-nan -NAN -nan -NAN -nan -NAN -nan -NAN") != 0;
+ printf ("expected L\"-nan -NAN -nan -NAN -nan -NAN -nan -NAN\", got L\"%S\"\n",
+ wbuf);
+
+ swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]), L"%a %A %e %E %f %F %g %G",
+ infval, infval, infval, infval, infval, infval, infval, infval);
+ result |= wcscmp (wbuf, L"inf INF inf INF inf INF inf INF") != 0;
+ printf ("expected L\"inf INF inf INF inf INF inf INF\", got L\"%S\"\n", wbuf);
+
+ swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]), L"%a %A %e %E %f %F %g %G",
+ -infval, -infval, -infval, -infval,
+ -infval, -infval, -infval, -infval);
+ result |= wcscmp (wbuf, L"-inf -INF -inf -INF -inf -INF -inf -INF") != 0;
+ printf ("expected L\"-inf -INF -inf -INF -inf -INF -inf -INF\", got L\"%S\"\n",
+ wbuf);
+
+ lqnanval = NAN;
+
+ snprintf (buf, sizeof buf, "%La %LA %Le %LE %Lf %LF %Lg %LG",
+ lqnanval, lqnanval, lqnanval, lqnanval,
+ lqnanval, lqnanval, lqnanval, lqnanval);
+ result |= strcmp (buf, "nan NAN nan NAN nan NAN nan NAN") != 0;
+ printf ("expected \"nan NAN nan NAN nan NAN nan NAN\", got \"%s\"\n", buf);
+
+ snprintf (buf, sizeof buf, "%La %LA %Le %LE %Lf %LF %Lg %LG",
+ -lqnanval, -lqnanval, -lqnanval, -lqnanval,
+ -lqnanval, -lqnanval, -lqnanval, -lqnanval);
+ result |= strcmp (buf, "-nan -NAN -nan -NAN -nan -NAN -nan -NAN") != 0;
+ printf ("expected \"-nan -NAN -nan -NAN -nan -NAN -nan -NAN\", got \"%s\"\n",
+ buf);
+
+ snprintf (buf, sizeof buf, "%La %LA %Le %LE %Lf %LF %Lg %LG",
+ lsnanval, lsnanval, lsnanval, lsnanval,
+ lsnanval, lsnanval, lsnanval, lsnanval);
+ result |= strcmp (buf, "nan NAN nan NAN nan NAN nan NAN") != 0;
+ printf ("expected \"nan NAN nan NAN nan NAN nan NAN\", got \"%s\"\n", buf);
+
+ snprintf (buf, sizeof buf, "%La %LA %Le %LE %Lf %LF %Lg %LG",
+ lmsnanval, lmsnanval, lmsnanval, lmsnanval,
+ lmsnanval, lmsnanval, lmsnanval, lmsnanval);
+ result |= strcmp (buf, "-nan -NAN -nan -NAN -nan -NAN -nan -NAN") != 0;
+ printf ("expected \"-nan -NAN -nan -NAN -nan -NAN -nan -NAN\", got \"%s\"\n",
+ buf);
+
+ linfval = LDBL_MAX * LDBL_MAX;
+
+ snprintf (buf, sizeof buf, "%La %LA %Le %LE %Lf %LF %Lg %LG",
+ linfval, linfval, linfval, linfval,
+ linfval, linfval, linfval, linfval);
+ result |= strcmp (buf, "inf INF inf INF inf INF inf INF") != 0;
+ printf ("expected \"inf INF inf INF inf INF inf INF\", got \"%s\"\n", buf);
+
+ snprintf (buf, sizeof buf, "%La %LA %Le %LE %Lf %LF %Lg %LG",
+ -linfval, -linfval, -linfval, -linfval,
+ -linfval, -linfval, -linfval, -linfval);
+ result |= strcmp (buf, "-inf -INF -inf -INF -inf -INF -inf -INF") != 0;
+ printf ("expected \"-inf -INF -inf -INF -inf -INF -inf -INF\", got \"%s\"\n",
+ buf);
+
+ swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]),
+ L"%La %LA %Le %LE %Lf %LF %Lg %LG",
+ lqnanval, lqnanval, lqnanval, lqnanval,
+ lqnanval, lqnanval, lqnanval, lqnanval);
+ result |= wcscmp (wbuf, L"nan NAN nan NAN nan NAN nan NAN") != 0;
+ printf ("expected L\"nan NAN nan NAN nan NAN nan NAN\", got L\"%S\"\n", wbuf);
+
+ swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]),
+ L"%La %LA %Le %LE %Lf %LF %Lg %LG",
+ -lqnanval, -lqnanval, -lqnanval, -lqnanval,
+ -lqnanval, -lqnanval, -lqnanval, -lqnanval);
+ result |= wcscmp (wbuf, L"-nan -NAN -nan -NAN -nan -NAN -nan -NAN") != 0;
+ printf ("expected L\"-nan -NAN -nan -NAN -nan -NAN -nan -NAN\", got L\"%S\"\n",
+ wbuf);
+
+ swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]),
+ L"%La %LA %Le %LE %Lf %LF %Lg %LG",
+ lsnanval, lsnanval, lsnanval, lsnanval,
+ lsnanval, lsnanval, lsnanval, lsnanval);
+ result |= wcscmp (wbuf, L"nan NAN nan NAN nan NAN nan NAN") != 0;
+ printf ("expected L\"nan NAN nan NAN nan NAN nan NAN\", got L\"%S\"\n", wbuf);
+
+ swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]),
+ L"%La %LA %Le %LE %Lf %LF %Lg %LG",
+ lmsnanval, lmsnanval, lmsnanval, lmsnanval,
+ lmsnanval, lmsnanval, lmsnanval, lmsnanval);
+ result |= wcscmp (wbuf, L"-nan -NAN -nan -NAN -nan -NAN -nan -NAN") != 0;
+ printf ("expected L\"-nan -NAN -nan -NAN -nan -NAN -nan -NAN\", got L\"%S\"\n",
+ wbuf);
+
+ swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]),
+ L"%La %LA %Le %LE %Lf %LF %Lg %LG",
+ linfval, linfval, linfval, linfval,
+ linfval, linfval, linfval, linfval);
+ result |= wcscmp (wbuf, L"inf INF inf INF inf INF inf INF") != 0;
+ printf ("expected L\"inf INF inf INF inf INF inf INF\", got L\"%S\"\n", wbuf);
+
+ swprintf (wbuf, sizeof wbuf / sizeof (wbuf[0]),
+ L"%La %LA %Le %LE %Lf %LF %Lg %LG",
+ -linfval, -linfval, -linfval, -linfval,
+ -linfval, -linfval, -linfval, -linfval);
+ result |= wcscmp (wbuf, L"-inf -INF -inf -INF -inf -INF -inf -INF") != 0;
+ printf ("expected L\"-inf -INF -inf -INF -inf -INF -inf -INF\", got L\"%S\"\n",
+ wbuf);
+
+ DIAG_POP_NEEDS_COMMENT;
+
+ return result;
+}
+
+int
+main (int argc, char *argv[])
+{
+ int result = 0;
+
+ result |= t1 ();
+ result |= t2 ();
+ result |= t3 ();
+ result |= F ();
+
+ result |= fflush (stdout) == EOF;
+
+ return result;
+}