CheckHLine

Undocumented in source.
nothrow @nogc
enum CheckHLine = q{ static if (CHECKED) { if (x1 >= v.w || x2 <= 0 || y < 0 || y >= v.h || x1 >= x2) return; if (x1 < 0) x1 = 0; if (x2 >= v.w) x2 = v.w; } assert(x1 <= x2); };

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