Unhandled exception thrown: read access violation. **this** was 0xFFFFFFFFFFFFFFF7.

[jron53]

Bug category

• [ ] bug - compilation error
• [ ] bug - compilation warning
• [x] bug - runtime error
• [ ] bug - runtime warning
• [ ] bug - logic error

Describe the bug

Steps to Reproduce

Copied an example from your website:
#include <cmath>
#include <matplot/matplot.h>

int main() {
    using namespace matplot;

    std::vector<double> x = linspace(0, 2 * pi);
    std::vector<double> y1 = transform(x, [](auto x) { return sin(x); });
    std::vector<double> y2 = transform(x, [](auto x) { return sin(x - 0.25); });
    std::vector<double> y3 = transform(x, [](auto x) { return sin(x - 0.5); });
    plot(x, y1, x, y2, "--", x, y3, ":");

    show();
    return 0;
}

Output std::runtime_error exception, read access violation

```console Microsoft C++ exception: std::runtime_error at memory location 0x000000947E6FF060. ``` When I continue to debug I see: ```Unhandled exception thrown: read access violation. this was 0xFFFFFFFFFFFFFFF7.```

Platform

• [ ] cross-platform issue - linux
• [x] cross-platform issue - windows
• [ ] cross-platform issue - macos

Environment Details:

• OS: Windows 10 pro
• OS Version:
• Compiler:
• Compiler version:

Additional context