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-rw-r--r--tests/util.test90
1 files changed, 89 insertions, 1 deletions
diff --git a/tests/util.test b/tests/util.test
index 1d31609..d435a82 100644
--- a/tests/util.test
+++ b/tests/util.test
@@ -7,7 +7,7 @@
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
-# RCS: @(#) $Id: util.test,v 1.21 2010/11/28 23:20:11 kennykb Exp $
+# RCS: @(#) $Id: util.test,v 1.22 2011/01/07 02:26:55 kennykb Exp $
if {[lsearch [namespace children] ::tcltest] == -1} {
package require tcltest
@@ -1903,6 +1903,94 @@ test util-14.2 {funky NaN} {*}{
-result -NaN(3456789abcdef)
}
+test util-15.1 {largest subnormal} {*}{
+ -body {
+ binary scan [binary format w 0x000fffffffffffff] q x
+ set x
+ }
+ -result 2.225073858507201e-308
+ -cleanup {
+ unset x
+ }
+}
+
+test util-15.2 {largest subnormal} {*}{
+ -body {
+ binary scan [binary format w 0x800fffffffffffff] q x
+ set x
+ }
+ -result -2.225073858507201e-308
+ -cleanup {
+ unset x
+ }
+}
+
+test util-15.3 {largest subnormal} {*}{
+ -body {
+ binary scan [binary format q 2.225073858507201e-308] w x
+ format %#lx $x
+ }
+ -result 0xfffffffffffff
+ -cleanup {
+ unset x
+ }
+}
+
+test util-15.4 {largest subnormal} {*}{
+ -body {
+ binary scan [binary format q -2.225073858507201e-308] w x
+ format %#lx $x
+ }
+ -result 0x800fffffffffffff
+ -cleanup {
+ unset x
+ }
+}
+
+test util-15.5 {smallest normal} {*}{
+ -body {
+ binary scan [binary format w 0x0010000000000000] q x
+ set x
+ }
+ -result 2.2250738585072014e-308
+ -cleanup {
+ unset x
+ }
+}
+
+test util-15.6 {smallest normal} {*}{
+ -body {
+ binary scan [binary format w 0x8010000000000000] q x
+ set x
+ }
+ -result -2.2250738585072014e-308
+ -cleanup {
+ unset x
+ }
+}
+
+test util-15.7 {smallest normal} {*}{
+ -body {
+ binary scan [binary format q 2.2250738585072014e-308] w x
+ format %#lx $x
+ }
+ -result 0x10000000000000
+ -cleanup {
+ unset x
+ }
+}
+
+test util-15.8 {smallest normal} {*}{
+ -body {
+ binary scan [binary format q -2.2250738585072014e-308] w x
+ format %#lx $x
+ }
+ -result 0x8010000000000000
+ -cleanup {
+ unset x
+ }
+}
+
# cleanup
::tcltest::cleanupTests
return