__complex__ float clog10f (__complex__ float x);
__complex__ long double clog10l (__complex__ long double x);
-__complex__ double cpow (__complex__ double x, __complex__ double c);
-__complex__ float cpowf (__complex__ float x, __complex__ float c);
-__complex__ long double cpowl (__complex__ long double x, __complex__ long double c);
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__complex__ double csin (__complex__ double x);
__complex__ float csinf (__complex__ float x);
__complex__ long double csinl (__complex__ long double x);