aboutsummaryrefslogtreecommitdiffstats
path: root/gcc-4.9/gcc/testsuite/gcc.dg/dfp/pragma-float-const-decimal64-1.c
diff options
context:
space:
mode:
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/dfp/pragma-float-const-decimal64-1.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/dfp/pragma-float-const-decimal64-1.c85
1 files changed, 85 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/dfp/pragma-float-const-decimal64-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/dfp/pragma-float-const-decimal64-1.c
new file mode 100644
index 000000000..62d85b6d3
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/dfp/pragma-float-const-decimal64-1.c
@@ -0,0 +1,85 @@
+/* { dg-do compile } */
+/* { dg-options "-Wall" } */
+
+/* N1312 7.1.1: The FLOAT_CONST_DECIMAL64 pragma.
+ C99 6.4.4.2a (New).
+
+ Verify that the pragma has the expected result by using unsuffixed
+ float constants as operands in expressions that would mix binary and
+ decimal operands if the pragma had no effect, or the wrong effect. */
+
+#pragma STDC FLOAT_CONST_DECIMAL64 ON
+double a = 1.0 * 2.0dd;
+
+double
+f1 (void)
+{
+#pragma STDC FLOAT_CONST_DECIMAL64 OFF
+ double b = 2.0 * 3.0d;
+
+ {
+ double c = 3.0 * 4.0d;
+ b = b + c;
+ }
+
+ {
+#pragma STDC FLOAT_CONST_DECIMAL64 ON
+ double d = 4.0 * 5.0dd;
+
+ b = b + d;
+ }
+
+ {
+ /* Default is OFF. */
+#pragma STDC FLOAT_CONST_DECIMAL64 DEFAULT
+ double e = 5.0 * 6.0d;
+ b = b + e;
+ }
+
+ return b;
+}
+
+double
+f2 (void)
+{
+ /* Use value from outer scope, which is ON. */
+ double b = 2.0 * 3.0dd;
+
+ {
+#pragma STDC FLOAT_CONST_DECIMAL64 OFF
+ double c = 3.0 * 4.0d;
+
+ {
+#pragma STDC FLOAT_CONST_DECIMAL64 ON
+ double d = 4.0 * 5.0dd;
+
+ {
+#pragma STDC FLOAT_CONST_DECIMAL64 DEFAULT
+ double e = 5.0 * 6.0d;
+
+ {
+#pragma STDC FLOAT_CONST_DECIMAL64 ON
+ double f = 6.0 * 7.0dd;
+
+ b = a + b + c + d + e + f;
+ }
+ }
+ }
+ }
+ return b;
+}
+
+/* Use previous value from this scope, which is ON. */
+double f = 6.0 * 7.0dd;
+
+double
+f3 (void)
+{
+#pragma STDC FLOAT_CONST_DECIMAL64 OFF
+ double b = 2.0 * 3.0d;
+
+ return b + f;
+}
+
+/* Return to the state from this scope, which is ON. */
+double g = 7.0 + 8.0dd;