diff options
author | Stanislaw Halik <sthalik@misaki.pl> | 2016-10-19 20:54:10 +0200 |
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committer | Stanislaw Halik <sthalik@misaki.pl> | 2016-10-19 20:54:10 +0200 |
commit | e59090089d997c3246757df118240c0886f31a4c (patch) | |
tree | a8935ba9c29be44fa2ec1e2a00309c61f2470d4b | |
parent | a38e3f7c61004a0844fb6c300c0b77d39a683fa6 (diff) |
options/slider: check for floating-point division by zero
It's not strictly necessary but a good practice nevertheless.
-rw-r--r-- | options/slider.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/options/slider.cpp b/options/slider.cpp index 9cbe373c..147496cb 100644 --- a/options/slider.cpp +++ b/options/slider.cpp @@ -78,8 +78,12 @@ slider_value slider_value::update_from_slider(int pos, int q_min, int q_max) con int slider_value::to_slider_pos(int q_min, int q_max) const { const int q_diff = q_max - q_min; + const double div = max() - min(); - return int(std::round(((cur() - min()) * q_diff / (max() - min())) + q_min)); + if (std::fabs(div) < 1e-4) + return q_min; + else + return int(std::round(((cur() - min()) * q_diff / div) + q_min)); } } // end ns options |