cbmc-library regression tests: create stubs for functions missing tests

These are all marked KNOWNBUG and need tweaking.

Author: tautschnig

regression/cbmc-library/__acrt_iob_func-01/main.c

@@ -0,0 +1,9 @@
+#include <assert.h>
+#include <time.h>
+
+int main()
+{
+  __acrt_iob_func();
+  assert(0);
+  return 0;
+}

regression/cbmc-library/__acrt_iob_func-01/test.desc

@@ -0,0 +1,8 @@
+KNOWNBUG
+main.c
+--pointer-check --bounds-check
+^EXIT=0$
+^SIGNAL=0$
+^VERIFICATION SUCCESSFUL$
+--
+^warning: ignoring

regression/cbmc-library/__stdio_common_vfprintf-01/main.c

@@ -0,0 +1,9 @@
+#include <assert.h>
+#include <time.h>
+
+int main()
+{
+  __stdio_common_vfprintf();
+  assert(0);
+  return 0;
+}

regression/cbmc-library/__stdio_common_vfprintf-01/test.desc

@@ -0,0 +1,8 @@
+KNOWNBUG
+main.c
+--pointer-check --bounds-check
+^EXIT=0$
+^SIGNAL=0$
+^VERIFICATION SUCCESSFUL$
+--
+^warning: ignoring

regression/cbmc-library/errx-01/main.c

@@ -0,0 +1,9 @@
+#include <assert.h>
+#include <time.h>
+
+int main()
+{
+  errx();
+  assert(0);
+  return 0;
+}

regression/cbmc-library/errx-01/test.desc

@@ -0,0 +1,8 @@
+KNOWNBUG
+main.c
+--pointer-check --bounds-check
+^EXIT=0$
+^SIGNAL=0$
+^VERIFICATION SUCCESSFUL$
+--
+^warning: ignoring

regression/cbmc-library/pthread_getspecific-01/main.c

@@ -0,0 +1,9 @@
+#include <assert.h>
+#include <time.h>
+
+int main()
+{
+  pthread_getspecific();
+  assert(0);
+  return 0;
+}

regression/cbmc-library/pthread_getspecific-01/test.desc

@@ -0,0 +1,8 @@
+KNOWNBUG
+main.c
+--pointer-check --bounds-check
+^EXIT=0$
+^SIGNAL=0$
+^VERIFICATION SUCCESSFUL$
+--
+^warning: ignoring

regression/cbmc-library/pthread_key_create-01/main.c

@@ -0,0 +1,9 @@
+#include <assert.h>
+#include <time.h>
+
+int main()
+{
+  pthread_key_create();
+  assert(0);
+  return 0;
+}

regression/cbmc-library/pthread_key_create-01/test.desc

@@ -0,0 +1,8 @@
+KNOWNBUG
+main.c
+--pointer-check --bounds-check
+^EXIT=0$
+^SIGNAL=0$
+^VERIFICATION SUCCESSFUL$
+--
+^warning: ignoring