Function cftx020

extlibs/soloud/src/core/soloud_fft.cpp:2232–2242

	}

	void cftx020(float *a)
	{
		float x0r, x0i;

		x0r = a[0] - a[2];
		x0i = a[1] - a[3];
		a[0] += a[2];
		a[1] += a[3];
		a[2] = x0r;
		a[3] = x0i;
	}

	void cftfx41(int n, float *a)
	{