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-rw-r--r--tests/tcctest.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/tests/tcctest.c b/tests/tcctest.c
index eb284f0..d96c5a1 100644
--- a/tests/tcctest.c
+++ b/tests/tcctest.c
@@ -1699,6 +1699,29 @@ void prefix ## call(void)\
printf("strto%s: %f\n", #prefix, (double)strto ## prefix("1.2", NULL));\
}\
\
+void prefix ## signed_zeros(void) \
+{\
+ type x = 0.0, y = -0.0, n, p;\
+ if (x == y)\
+ printf ("Test 1.0 / x != 1.0 / y returns %d (should be 1).\n",\
+ 1.0 / x != 1.0 / y);\
+ else\
+ printf ("x != y; this is wrong!\n");\
+\
+ n = -x;\
+ if (x == n)\
+ printf ("Test 1.0 / x != 1.0 / -x returns %d (should be 1).\n",\
+ 1.0 / x != 1.0 / n);\
+ else\
+ printf ("x != -x; this is wrong!\n");\
+\
+ p = +y;\
+ if (x == p)\
+ printf ("Test 1.0 / x != 1.0 / +y returns %d (should be 1).\n",\
+ 1.0 / x != 1.0 / p);\
+ else\
+ printf ("x != +y; this is wrong!\n");\
+}\
void prefix ## test(void)\
{\
printf("testing '%s'\n", #typename);\
@@ -1708,6 +1731,7 @@ void prefix ## test(void)\
prefix ## fcast(234.6);\
prefix ## fcast(-2334.6);\
prefix ## call();\
+ prefix ## signed_zeros();\
}
FTEST(f, float, float, "%f")