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fix subtraction underflow in debug mode

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This commit is contained in:
Wez Furlong 2019-12-09 21:52:36 -08:00
parent aed75850c5
commit 9a653ca663
1 changed files with 2 additions and 1 deletions
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3
src/frontend/gui/tabbar.rs
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@ -61,7 +61,8 @@ impl TabBarState {
let titles_len: usize = tab_titles.iter().map(|s| unicode_column_width(s)).sum();
let number_of_tabs = tab_titles.len();
let available_cells = title_width - ((number_of_tabs * per_tab_overhead) + system_overhead);
let available_cells =
title_width.saturating_sub((number_of_tabs * per_tab_overhead) + system_overhead);
let tab_width_max = if available_cells >= titles_len {
// We can render each title with its full width
usize::max_value()