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SITL: fixed segv when running examples under SITL

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This commit is contained in:
Andrew Tridgell 2018-05-15 07:21:17 +10:00
parent 46b1a2d117
commit 0078a68fbb
1 changed files with 2 additions and 1 deletions
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3
libraries/SITL/SIM_Aircraft.cpp
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@ -151,7 +151,8 @@ bool Aircraft::parse_home(const char *home_str, Location &loc, float &yaw_degree
float Aircraft::ground_height_difference() const
{
float h1, h2;
if (sitl->terrain_enable && terrain &&
if (sitl &&
sitl->terrain_enable && terrain &&
terrain->height_amsl(home, h1, false) &&
terrain->height_amsl(location, h2, false)) {
return h2 - h1;