Fixed a problem with floating point prefix expressions.

Added a regression test for floating point.

git-svn-id: http://picoc.googlecode.com/svn/trunk@293 21eae674-98b7-11dd-bd71-f92a316d2d60

expression.c

@@ -339,6 +339,8 @@ void ExpressionPrefixOperator(struct ParseState *Parser, struct ExpressionStack
                     case TokenMinus:        ResultFP = -TopValue->Val->FP; break;
                     default:                ProgramFail(Parser, "invalid operation"); break;
                 }
+                
+                ExpressionPushFP(Parser, StackTop, ResultFP);
             }
             else 
 #endif

tests/22_floating_point.c

@@ -0,0 +1,35 @@
+// variables
+float a = 12.34 + 56.78;
+printf("%f\n", a);
+
+// infix operators
+printf("%f\n", 12.34 + 56.78);
+printf("%f\n", 12.34 - 56.78);
+printf("%f\n", 12.34 * 56.78);
+printf("%f\n", 12.34 / 56.78);
+
+// comparison operators
+printf("%d %d %d %d %d %d\n", 12.34 < 56.78, 12.34 <= 56.78, 12.34 == 56.78, 12.34 >= 56.78, 12.34 > 56.78, 12.34 != 56.78);
+printf("%d %d %d %d %d %d\n", 12.34 < 12.34, 12.34 <= 12.34, 12.34 == 12.34, 12.34 >= 12.34, 12.34 > 12.34, 12.34 != 12.34);
+printf("%d %d %d %d %d %d\n", 56.78 < 12.34, 56.78 <= 12.34, 56.78 == 12.34, 56.78 >= 12.34, 56.78 > 12.34, 56.78 != 12.34);
+
+// assignment operators
+a = 12.34;
+a += 56.78;
+printf("%f\n", a);
+
+a = 12.34;
+a -= 56.78;
+printf("%f\n", a);
+
+a = 12.34;
+a *= 56.78;
+printf("%f\n", a);
+
+a = 12.34;
+a /= 56.78;
+printf("%f\n", a);
+
+// prefix operators
+printf("%f\n", +12.34);
+printf("%f\n", -12.34);

tests/22_floating_point.expect

@@ -0,0 +1,14 @@
+69.12
+69.12
+-44.44
+700.6652
+0.21733
+1 1 0 0 0 1
+0 1 1 1 0 0
+0 0 0 1 1 1
+69.12
+-44.44
+700.6652
+0.21733
+12.34
+-12.34

tests/Makefile

@@ -18,7 +18,8 @@ TESTS=	00_assignment.test \
 	17_enum.test \
 	18_include.test \
 	19_pointer_arithmetic.test \
-	20_pointer_comparison.test
+	20_pointer_comparison.test \
+	22_floating_point.test
 
 %.test: %.expect %.c
 	@echo Test: $*...