* src/SDCCast.c (decorateType): fix promotion of unary minus

[fw/sdcc] / support / regression / tests / onebyte.c

diff --git a/support/regression/tests/onebyte.c b/support/regression/tests/onebyte.c
index a6ffc9d192059c76b772f5234f5c6cf6fc484881..326f9ad03bb412db0157f8be1cc17ea4f7aac605 100644 (file)
--- a/support/regression/tests/onebyte.c
+++ b/support/regression/tests/onebyte.c
@@ -203,3 +203,28 @@ testComp(void)
   ASSERT(!(c >  uc));
   ASSERT(!(c >= uc));
 }
+
+void
+testUMinus(void)
+{
+    signed char  {attrL} sc;
+  unsigned char  {attrL} uc;
+  unsigned int   {attrL} us;
+  unsigned long  {attrL} ul;
+
+  ASSERT (-(53ul) > 0);
+  ul = 53;
+  ASSERT (-ul > 0);
+
+  ASSERT (-(53u ) > 0);
+  us = 53;
+  ASSERT (-us > 0);
+
+  ASSERT (-( 250 ) == -250);
+  uc = 250;
+  ASSERT (-uc == -250);
+
+  ASSERT (-(-128 ) ==  128);
+  sc = -128;
+  ASSERT (-sc == 128);
+}