tests: Auto detect floating point capabilites of the target.

The floating-point precision of the target is detected (0, 30, 32 or 64)
and only those tests which can run on the target will be run.

1 files changed, 13 insertions, 0 deletions

diff --git a/tests/feature_check/float.py b/tests/feature_check/float.py
new file mode 100644
index 000000000..af93f5976
--- /dev/null
+++ b/tests/feature_check/float.py
@@ -0,0 +1,13 @@
+# detect how many bits of precision the floating point implementation has
+
+try:
+    float
+except NameError:
+    print(0)
+else:
+    if float('1.0000001') == float('1.0'):
+        print(30)
+    elif float('1e300') == float('inf'):
+        print(32)
+    else:
+        print(64)