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| author | dgp <dgp@users.sourceforge.net> | 2006-07-26 21:56:34 (GMT) |
|---|---|---|
| committer | dgp <dgp@users.sourceforge.net> | 2006-07-26 21:56:34 (GMT) |
| commit | 420e232f0fb6221fb1473b08681d9b2a76804690 (patch) | |
| tree | 725277dd32485ba803542bc6c6d9cfbdf15557c8 /tests/expr.test | |
| parent | 7bef47d44562d1078457fd681f39a40e54d43897 (diff) | |
| download | tcl-420e232f0fb6221fb1473b08681d9b2a76804690.zip tcl-420e232f0fb6221fb1473b08681d9b2a76804690.tar.gz tcl-420e232f0fb6221fb1473b08681d9b2a76804690.tar.bz2 | |
* generic/tclExecute.c: Corrected flawed overflow detection in
* tests/expr.test: INST_EXPON that caused [expr 2**64]
to return 0 instead of the same value as [expr 1<<64].
Diffstat (limited to 'tests/expr.test')
| -rw-r--r-- | tests/expr.test | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/tests/expr.test b/tests/expr.test index 980f0b9..faca569 100644 --- a/tests/expr.test +++ b/tests/expr.test @@ -10,7 +10,7 @@ # See the file "license.terms" for information on usage and redistribution # of this file, and for a DISCLAIMER OF ALL WARRANTIES. # -# RCS: @(#) $Id: expr.test,v 1.55 2006/07/05 05:34:45 dgp Exp $ +# RCS: @(#) $Id: expr.test,v 1.56 2006/07/26 21:56:35 dgp Exp $ if {[lsearch [namespace children] ::tcltest] == -1} { package require tcltest 2.1 @@ -1032,6 +1032,10 @@ test expr-23.39 {INST_EXPON: big integer} { expr 1[string repeat 0 30]**2 } 1[string repeat 0 60] test expr-23.40 {INST_EXPON: overflow to big integer} {expr {(-10)**3}} -1000 +test expr-23.41 {INST_EXPON: overflow to big integer} {expr 2**64} [expr 1<<64] +test expr-23.41 {INST_EXPON: overflow to big integer} {expr 4**32} [expr 1<<64] +test expr-23.41 {INST_EXPON: overflow to big integer} {expr 16**16} [expr 1<<64] +test expr-23.41 {INST_EXPON: overflow to big integer} {expr 256**8} [expr 1<<64] # Some compilers get this wrong; ensure that we work around it correctly test expr-24.1 {expr edge cases; shifting} {expr int(5)>>32} 0 |