18 lines
		
	
	
		
			206 B
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			18 lines
		
	
	
		
			206 B
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * Written by J.T. Conklin <jtc@netbsd.org>.
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 * Public domain.
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 *
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 */
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#include <math.h>
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float
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atanf (float x)
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{
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  float res;
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  asm ("fld1\n\t"
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       "fpatan" : "=t" (res) : "0" (x));
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  return res;
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}
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