c++ illegal instruction (core dumped) - c++

Question

So my now completed program works as intended apart from one crash that happens when i keypress 'p' which should only switch an if statement to the else part, however it crashes with the "illegal instruction (core dumped)" message.
#include <stdio.h>
// include the UFCFGL301's standard library
#include <ufcfgl-30-1.h>
// uncomment if you want to use the graphics library
#include <graphics.h>
const uint32 window_Width = 600;
const uint32 window_Height = 400;
using namespace uwe;
struct Rect{
int x,y,width,height,r,g,b;
};
struct Circle{
int x,y,radius,r,g,b;
};
union CircleorRect{
Rect rect;
Circle circle;
};
Rect createRect() {
int x = rand() % window_Width;
int y = rand() % window_Height;
int width = rand() % 200;
int height = rand() % 200;
int r = rand()%256;
int g = rand()%256;
int b = rand()%256;
return Rect{x, y, width, height, r, g, b};
};
Circle createCirc() {
int x = rand() % window_Width;
int y = rand() % window_Height;
int radius = rand() % 200;
int r = rand()%256;
int g = rand()%256;
int b = rand()%256;
return Circle{x, y, radius, r, g, b};
};
Rect createRect();
Circle createCirc();
int main(void) {
// graphics window
initialiseGraphics(window_Width,window_Height);
// variables
int count = 0,pressedcount;
Circle circle[1000];
Rect rects[1000];
bool stopCircs = false;
// creating distinct shapes then mapping them.
loop(
[&](){
rects[count] = createRect();
//if circles = create new circle and paint it
if (stopCircs == false) {
circle[count] = createCirc();
for (size_t i = 0; i < count; i++) {
setColour(circle[i].r,circle[i].g,circle[i].b);
drawFilledCircle(circle[i].x,circle[i].y,circle[i].radius);
}
}
else {
for (size_t i = 0; i < pressedcount; i++) {
setColour(circle[i].r,circle[i].g,circle[i].b);
drawFilledCircle(circle[i].x,circle[i].y,circle[i].radius);
}}
for (size_t i = 0; i < count; i++) {
setColour(rects[i].r,rects[i].g,rects[i].b);
drawFilledRect(rects[i].x,rects[i].y,rects[i].width,rects[i].height);
}
count++;
if (count >= 1000) {
count = 0;
}
},
[&](KeyPress keyPress){
if (getTextCharacter(keyPress) == 'q') {
return true;
}
else if (getTextCharacter(keyPress) == 'p') {
stopCircs = true;
pressedcount = count;
}
else {
return false;
}
});
return 0;
}
The 'p' press should only switch from generating new circles to just loading the older ones, no idea why it causes a crash.
This is the whole thing so if anyone wants to try and run it or tell me how to get a better debugger than trying and failing any help would be appreciated.

Answer 1

In this lambda not all control-paths have a return statement (compiling with a higher error/warning level might diagnose this kind of error).
[&](KeyPress keyPress){
if (getTextCharacter(keyPress) == 'q') {
return true;
}
else if (getTextCharacter(keyPress) == 'p') {
stopCircs = true;
pressedcount = count;
//here maybe missing return
}
else {
return false;
}
// or here maybe missing return
}