Re: ?? exec prog << value ??

On May 31, 9:53 pm, Zeh Mau <chefmue...@xxxxxx> wrote:

set var 4+4\n
puts $var
set result [exec test_prog << $var]
puts $result
-----------------------------------------
4+4

syntax error
can't read "result": no such variable

Very strange. Either test_prog exits with status 0 and result gets set
to something (be it an empty string), or it exits abnormally, and
[exec] raises an exception, hence cannot reach the [puts].

Can you please run strace (I mean "strace tclsh example.tcl") and post
the output ?

-Alex

.

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