Is it necessary to use xlib's “XAllocSizeHints()”?
Question
Xlib has a function called XAllocSizeHints
to allocate a XSizeHints
structure on the heap and set it to zero.
XSizeHints *sizehints;
sizehints=XAllocSizeHints();
However, is it necessary to always use this function? Or can I do this:
XSizeHints sizehints;
memset(&sizehints, 0, sizeof(XSizeHints));
I would like to know if it is possible to avoid XAllocWMHints
and XAllocClassHint
too.
Solution
It's fine to stack allocate these (as long as you don't keep them around after the current function returns of course). There's no magic in those alloc functions. In fact most code probably does allocate them on the stack.
OTHER TIPS
It's actually better to use memset way, because if you call XAllocSizeHints() then you need to explicitly free memory with XFree().
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