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window(fill): bounds check end condition for fill

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Fixes #65
This commit is contained in:
Tim Culverhouse 2024-08-02 07:28:06 -05:00
parent 9cbcc92b4c
commit ec09912fa8
1 changed files with 1 additions and 1 deletions
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src/Window.zig
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@ -218,7 +218,7 @@ pub fn fill(self: Window, cell: Cell) void {
if (self.x_off == 0 and self.width == self.screen.width) { if (self.x_off == 0 and self.width == self.screen.width) {
// we have a full width window, therefore contiguous memory. // we have a full width window, therefore contiguous memory.
const start = self.y_off * self.width; const start = self.y_off * self.width;
const end = start + (self.height * self.width); const end = @min(start + (self.height * self.width), self.screen.buf.len);
@memset(self.screen.buf[start..end], cell); @memset(self.screen.buf[start..end], cell);
} else { } else {
// Non-contiguous. Iterate over rows an memset // Non-contiguous. Iterate over rows an memset