Commit 28b3cbe

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Rework twin_tan with twin_sincos

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Lines changed: 3 additions & 3 deletions

Original file line number	Diff line number	Diff line change
`@@ -26,8 +26,8 @@ twin_fixed_t twin_cos(twin_angle_t a)`
`26`	`26`
`27`	`27`	`twin_fixed_t twin_tan(twin_angle_t a)`
`28`	`28`	`{`
`29`		`- twin_fixed_t s=twin_sin(a);`
`30`		`- twin_fixed_tc=twin_cos(a);`
	`29`	`+ twin_fixed_t s, c;`
	`30`	`+ twin_sincos(a, &s, &c);`
`31`	`31`
`32`	`32`	`if (c == 0) {`
`33`	`33`	`if (s > 0)`
`@@ -73,7 +73,7 @@ void twin_sincos(twin_angle_t a, twin_fixed_t sin, twin_fixed_t cos)`
`73`	`73`	`/* limit to [0..360) */`
`74`	`74`	`a = a & (TWIN_ANGLE_360 - 1);`
`75`	`75`	`int c = a > TWIN_ANGLE_90 && a < TWIN_ANGLE_270;`
`76`		`- /* special case for 90 degrees - no room in table */`
	`76`	`+ /* special case for 90 degrees */`
`77`	`77`	`if ((a & ~(TWIN_ANGLE_180)) == TWIN_ANGLE_90) {`
`78`	`78`	`sin_val = TWIN_FIXED_ONE;`
`79`	`79`	`cos_val = 0;`

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