From e7f4d91022af363905b758ab39bde1addcb69517 Mon Sep 17 00:00:00 2001 From: Anton Babushkin Date: Wed, 13 Nov 2013 23:15:02 +0400 Subject: geo: cleanup of wrap_XXX functions --- src/lib/geo/geo.c | 54 ++++++++++++++++++++++++++++++++++++------------------ 1 file changed, 36 insertions(+), 18 deletions(-) (limited to 'src/lib/geo') diff --git a/src/lib/geo/geo.c b/src/lib/geo/geo.c index 43105fdba..9e533b92d 100644 --- a/src/lib/geo/geo.c +++ b/src/lib/geo/geo.c @@ -390,22 +390,22 @@ __EXPORT int get_distance_to_arc(struct crosstrack_error_s * crosstrack_error, d __EXPORT float _wrap_pi(float bearing) { /* value is inf or NaN */ - if (!isfinite(bearing) || bearing == 0) { + if (!isfinite(bearing)) { return bearing; } int c = 0; - - while (bearing > M_PI_F && c < 30) { + while (bearing > M_PI_F) { bearing -= M_TWOPI_F; - c++; + if (c++ > 3) + return NAN; } c = 0; - - while (bearing <= -M_PI_F && c < 30) { + while (bearing <= -M_PI_F) { bearing += M_TWOPI_F; - c++; + if (c++ > 3) + return NAN; } return bearing; @@ -418,12 +418,18 @@ __EXPORT float _wrap_2pi(float bearing) return bearing; } - while (bearing >= M_TWOPI_F) { - bearing = bearing - M_TWOPI_F; + int c = 0; + while (bearing > M_TWOPI_F) { + bearing -= M_TWOPI_F; + if (c++ > 3) + return NAN; } - while (bearing < 0.0f) { - bearing = bearing + M_TWOPI_F; + c = 0; + while (bearing <= 0.0f) { + bearing += M_TWOPI_F; + if (c++ > 3) + return NAN; } return bearing; @@ -436,12 +442,18 @@ __EXPORT float _wrap_180(float bearing) return bearing; } + int c = 0; while (bearing > 180.0f) { - bearing = bearing - 360.0f; + bearing -= 360.0f; + if (c++ > 3) + return NAN; } - while (bearing <= -180.0f) { - bearing = bearing + 360.0f; + c = 0; + while (bearing <= -180.0f) { + bearing += 360.0f; + if (c++ > 3) + return NAN; } return bearing; @@ -454,12 +466,18 @@ __EXPORT float _wrap_360(float bearing) return bearing; } - while (bearing >= 360.0f) { - bearing = bearing - 360.0f; + int c = 0; + while (bearing > 360.0f) { + bearing -= 360.0f; + if (c++ > 3) + return NAN; } - while (bearing < 0.0f) { - bearing = bearing + 360.0f; + c = 0; + while (bearing <= 0.0f) { + bearing += 360.0f; + if (c++ > 3) + return NAN; } return bearing; -- cgit v1.2.3