How does your C program return an integer? Does it print it to the screen? Return it as its exit value? Something else? The answer to your question depends entirely on that.

As a Perl expression, !$? is the logical negation of the value of the system variable $?. If you are in fact after the exit value of a program, this (the variable, not its negation) would be the place to look, but read about $? in perldoc perlvar.

Anno

In reply to Re: Reading return value from C program by Anno
in thread Reading return value from C program by Anonymous Monk

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