ofxFunctional_08x

use functional in v0.8.x in Xcode/clang

HOW TO

first, include.

include "ofxFunctional_08x.h"

and use like this. (this is blocks, clang extension) function<int(int)> f = ^(int x) { ofLogNotice() << x; };

but we can't use like this...

function<int(int)> f = [](int x) { ofxLogNotice() << x; };

default capture is immutable copy.

int m = 0; function<void(void)> f = ^(){ ofLogNotice() << m++; }; // Error f();

use ofxFunctionalReference like this.

ofxFunctionalReference(int, n); function<void(void)> g = ^(){ n = 100; ofLogNotice() << n; };

and like this.

ofxFunctionalReference(int, k) = 0; function<void(void)> h = ^(){ ofLogNotice() << k++; }; h(); h(); h();

or use __block keyword directly like this. (but we DON'T recommend)

__block string str = ""; function<const string &()> p = ^{ return str += "str"; }; ofLogNotice() << p(); ofLogNotice() << p(); ofLogNotice() << p();

Reference

ofxSatoruHiga

Author

ISHII 2bit [bufferRenaiss co., ltd.] ishii[at]buffer-renaiss.com

HIGA Satoru

License

MIT License.