[Plplot-devel] Recent progress with wxwidgets IPC

2017-02-04 Thread Alan W. Irwin
Hi Phil: You have probably noticed my recent push of commit 3da0c90. That commit contains my recent (fairly small amount of) wxwidgets IPC code progress. The unnamed semaphores method requires the shared memory buffer be a struct (so that the buffer contains room for the required semaphores as w

Re: [Plplot-devel] C++ question

2017-02-04 Thread Alan W. Irwin
On 2017-02-05 00:01- Phil Rosenberg wrote: > It [initialization of private non-const member] should be done in the > constructor, so in PlDevice::PlDevice () Hi Phil: That idea makes perfect sense. However, there was no explicit constructor for PLDevice. So I had to implement that also, an

[Plplot-devel] C++ question

2017-02-04 Thread Alan W. Irwin
Hi Phil: What is the proper C++ way to initialize the private non-const member m_prevSymbol of the PlDevice class to an invalue value (i.e., 0)? valgrind is complaining about the uninitialized use of m_prevSymbol for a test in PlDevice::DrawTextLine, and I am looking for a way to shut it up. And

Re: [Plplot-devel] Error propagation

2017-02-04 Thread Phil Rosenberg
Hi Andrew Thanks for adding to the discussion. Further additions below On 3 February 2017 at 11:15, Andrew Ross wrote: > > Hi all, > > Sorry I have been silent for so long. Work and life have rather got in > the way of plplot development. This is something I have raised a couple > of times in the