Invalid operands to binary expression vector c++
So here is this xcode project only the. Yeah, it is probably just a gray box. I think all of the HTML text comes out in the console. Sounds like you are on the right track. As soon as 0. Anyways, many thanks again - now it seems, everything related to ofxMaps and examples works fine…. Problem compiling ofxMaps on OS X x-code.
The machine specs are currently OS X Yosemite: Macintosh HD Boot Mode: Mon Mar 23 Well, a pair, in this case a pair of string,ofTexture , like:. We can use it like this:. Please note that we have used pic. In this case, we can iterate through the map and change the value of the maps. But what if we want to simply read the values from the map, without changing them?
In this case, we use the keyword constant. This keyword makes sure that no values in the map will be touched. Notice the end call there? That's because find is actually returning an iterator, so if the element is inside the map, we get an iterator to it and if it isn't then we can an iterator that's pointing to the end of the iterator. There's a few other methods that the map provides that we'll list out in slightly abbreviated fashion:. What kinds of things can you use as a key in a map?
Well, pretty much all the things you probably want to: There are some limits to this though, you might try doing the following:. And this will throw a pretty obscure error, something like: This actually makes sense because the idea of a "less than" vector is a bit odd. There's a mathematical definition of it, but it doesn't make much common sense and the common sense one doesn't make much sense mathematically and that's not actually the point.
This is key because it tells the map how to organize all the values that it's containing so that it's relatively quick to look-up needed values. Maps are usually a Red-Black Tree underneath and for those interested in what that is, knock yourself out. Ok, so we've got a key object that we can use, let's go go ahead and use it:. Anything that knows whether it's greater than something else can be put into a list. Let's give our vector a slightly more fluid comparison operator:.
In a multimap we do not have this rule, a multimap can contains pair with the same key. We use a map when we want that our keys appear only once, we use a multimap when this detail is not important. And that concludes our adventures with the std:: For a more complete explanation of the map, check cppreference.
Go forth and use them where appropriate. This is a preliminary version of ofBook, a collaboratively written book about openFrameworks. Please post any issues, suggestions, comments on our repo. About This Book Credits. Brief description about common patterns used in the OF code setup, update, draw Classes Functions. Linear movement Function based movement Simulation Where to go further. How do game developers actually make games? So what is OSC, anyway?
Our basic game—and making it not so basic. Image Processing and Computer Vision. Draw a line A bit of noise A web of lines Make a smooth line in movement in a 3D space.
Basics of Generating Meshes from an Image. On this machine, there is Xcode Version 6. After a ton of problems, I managed to have something of an xcode project file, that looks like it is compiling, except that it fails here. Note that I already cloned the dependencies from https: Invalid operands to binary expression 'const Poco:: MediaType' and 'const Poco:: Hi sdaau — what version of openFrameworks are you using?
Currently everything should be working with the master branch of openFrameworks or 0. Just make sure all of the addons ofxHTTP, etc are using the develop branch.
So here is this xcode project only the. Yeah, it is probably just a gray box.