🙈 check for contiguous array

[jvdd]

Checks #63 and throws an error when this is not the case.

[codspeed-hq]

CodSpeed Performance Report

Merging #64 will degrade performances by 38.72%

_{Comparing contiguous (da1d0f7) with main (18b9fdf)}

Summary

⚡ 8 improvements
❌ 3 regressions
✅ 379 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	contiguous	Change
⚡	test_minmax_no_x[True-float32-100-100,000]	1.3 ms	1 ms	+25.11%
⚡	test_minmax_with_x[True-float32-100-100,000]	2.8 ms	2.5 ms	+10.42%
⚡	test_minmax_with_x[True-float64-100-100,000]	6 ms	3.3 ms	+83.23%
⚡	test_m4_no_x[True-float32-100-100,000]	1.4 ms	1.1 ms	+24.98%
❌	test_m4_no_x[True-float32-1,000-100,000]	1.4 ms	1.6 ms	-15.29%
❌	test_m4_with_x[True-float64-100-100,000]	3.1 ms	5.1 ms	-38.72%
⚡	test_m4_with_x[True-float32-100-100,000]	2.7 ms	2.5 ms	+10.08%
⚡	test_m4_with_x[True-int32-1,000-100,000]	7.1 ms	6.2 ms	+14.33%
⚡	test_m4_no_x[True-int32-1,000-100,000]	2.2 ms	2 ms	+11.72%
❌	test_minmaxlttb_no_x[True-float64-100-100,000]	1.8 ms	2.2 ms	-17.22%
⚡	test_minmaxlttb_no_x[True-int32-100-100,000]	2.3 ms	2.1 ms	+10.52%