Hello list,
I am facing an inconvenient problem.
Suppose I have a C library, that I want to use from vala:
// Always return true
extern bool lib_initialized ();
// data is always set when work returns true
extern bool lib_work (out int data);
int main(string[] args) {
int the_datum;
bool has_datum = (lib_initialized () && lib_work (out the_datum));
if (has_datum) {
stdout.printf ("Hello, %d!\n", the_datum);
}
return 0;
}
If I am to compile this (0.42.5, -C only, not link), I get an error message:
test.vala:11.3-11.44: error: use of possibly unassigned local variable
`the_datum'
stdout.printf ("Hello, %d!\n", the_datum);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Compilation failed: 1 error(s), 0 warning(s)
The workaround is obvious: initialize the_datum. However, I like to run my
code under valgrind to detect when reading
from an uninitialized variable (I make lots of mistakes ^^), and so if there is
a bug in lib_work and I initialize
the_datum, then I will not be able to notice the problem.
Is it possible to instruct valac that it should not worry? Or is it possible
to change this error to a simple warning?
Best regards
Vivien
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