xticklabels doesn't change ticks bar

[TheGreatRambler]

Bug category

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

Describe the bug Using xticklabels doesn't render ticks when using the bar chart as seen in example bar_7.cpp.

Steps to Reproduce

	figure = matplot::figure<matplot::backend::gnuplot> (true);
	figure->ioff ();
	auto ax = figure->current_axes ();
	ax->ytickformat ("%.0f");
	ax->bar (counts);
	ax->xticklabels (names);
	ax->x_grid (true);
	ax->xtickangle (45);
        figure->save (path, "png");

Output

# The output you got

Platform

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

Environment Details:

• OS: Windows 10
• OS Version: 21H2
• Compiler: MinGW64 GCC
• Compiler version: 11.2.0

Additional context

[alandefreitas]

Maybe we could modify the xticklabels example until we replicate the bug. It might be ordering of the commands or something.

[TheGreatRambler]

I've isolated the issue. Labels will be shown if there are 15 or less. Any more and they silently fail

[TheGreatRambler]

https://github.com/alandefreitas/matplotplusplus/blob/master/source/matplot/axes_objects/bars.cpp#L24 seems like a possible reason for this