tests: Added numerous tests.

The tests are taken almost verbatim from the open source project PicoC. It can
be found at https://code.google.com/p/picoc/.

The tests range from very simple/trivial ones to more complicated. My view is
that the more tests the better. Without tests like this I was very reluctant to
make any changes to tcc for the fear of breaking things.

The tests pass on Win32, OSX, Linux x86 and x86_64. One or two tests fail on
each platform due to differences in the runtime library.

1 files changed, 24 insertions, 0 deletions

diff --git a/tests2/20_pointer_comparison.c b/tests2/20_pointer_comparison.c
new file mode 100644
index 0000000..825f778
--- /dev/null
+++ b/tests2/20_pointer_comparison.c
@@ -0,0 +1,24 @@
+#include <stdio.h>
+
+int main()
+{
+   int a;
+   int b;
+   int *d;
+   int *e;
+   d = &a;
+   e = &b;
+   a = 12;
+   b = 34;
+   printf("%d\n", *d);
+   printf("%d\n", *e);
+   printf("%d\n", d == e);
+   printf("%d\n", d != e);
+   d = e;
+   printf("%d\n", d == e);
+   printf("%d\n", d != e);
+
+   return 0;
+}
+
+/* vim: set expandtab ts=4 sw=3 sts=3 tw=80 :*/