c++: a class accessing an std::vector of main class by pointers goes wrong -

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i'm building c++ project vs2012 express, platform toolset v100, , openframeworks 0.7.4.

i have class called namerect , part of .h file:

void config(int cx, int cy, int cw, int ch, std::string cname) {     x = cx;     y = cy;     w = cw;     h = ch;     name = cname;      dead = false; }  void branch(int iterants, std::vector<namerect> *nrs) {     (int = 0; < iterants; i++) {         namerect nnr;         nnr.config(x + w, y - iterants * h / 2 + * h, w, h, "cb");          children.push_back(nnr);         nrs->push_back(nnr);     } }  void render() {     if (!dead) {         ofsetcolor(ofrandom(0, 255), ofrandom(0, 255), ofrandom(0, 255), 0);         ofrect(x, y, w, h);     } }

and there's code in testapp.cpp:

//-------------------------------------------------------------- void testapp::setup(){     ofsetwindowshape(800, 600);      nr.config(0, 300, 50, 10, "cb");     nrs.push_back(nr); }  //-------------------------------------------------------------- void testapp::update(){     if (ofrandom(0, 50) <= 1 && nrs.size() < 100) {         (int cnri = 0; cnri < nrs.size(); cnri++) {             if (ofrandom(0, nrs.size() - cnri) <= 1) {                 nrs[cnri].branch(2, &nrs);             }         }     } }  //-------------------------------------------------------------- void testapp::draw(){     (int di = 0; di < nrs.size(); di++) {         nrs[di].render();     } }

and when build (succeeds) project , run it, gives me such error:

this error

i take @ local variables watch , shows such large integer values!

watch

what problem?

branch() modifying vector array passed in second parameter.

this means when call nrs[cnri].branch(2, &nrs) testapp::update() underlying array structure modified. lead unpredictable results , surely cause access violation.


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