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2023-07-04tcltest: rework constraint systemSteve Bennett1-5/+1
Now 'constraint cmd|package' is like 'needs' but sets a constraint The command to 'needs cmd' and 'constraint cmd' can now take a subcommand to check. Add 'constraint|needs eval|expr' to make some constraint checks simpler. Signed-off-by: Steve Bennett <steveb@workware.net.au>
2016-08-17expr: fixes for pow/**Steve Bennett1-0/+489
- integer version is much faster - handle -ve numbers - ** is right associative - add tests from Tcl 8.6 Signed-off-by: Steve Bennett <steveb@workware.net.au>