Merge pull request #56 from vitcpp/fix-sphereline_circle_pos

Fix sphereline_circle_pos (uninitialized memory use)

Author: vitcpp

Diff for: expected/overlaps.out

@@ -835,14 +835,14 @@ select 'sbox && scircle', 'f' as expected, sbox'((0d , 0d), (20d , 20d))' && sci
 select 'sbox && scircle', 'f' as expected, sbox'((0d , 0d), (0d , 0d))' && scircle'<(10d , 0d) , 10d>' as actual;
     ?column?     | expected | actual 
 -----------------+----------+--------
- sbox && scircle | f        | f
+ sbox && scircle | f        | t
 (1 row)
 
 -- the box degenerated into the point lies in the interior of circle
 select 'sbox && scircle', 'f' as expected, sbox'((0d , 0d), (0d , 0d))' && scircle'<(0d , 0d) , 10d>' as actual;
     ?column?     | expected | actual 
 -----------------+----------+--------
- sbox && scircle | f        | f
+ sbox && scircle | f        | t
 (1 row)
 
 -- the box and circle are degenerated into the point and coincide

Diff for: src/line.c

@@ -349,7 +349,7 @@ sphereline_circle_pos(const SLine *sl, const SCIRCLE *sc)
 	{
 		/* line is point */
 		sline_begin(&p[0], sl);
-		if (spoint_in_circle(&p[0], &c))
+		if (spoint_in_circle(&p[0], sc))
 		{
 			return PGS_CIRCLE_CONT_LINE;
 		}