Fix #8421

kovidgoyal · kovidgoyal · commit 2ee03dde4e09 · 2025-03-09T22:23:11.000+05:30
diff --git a/kitty/line.c b/kitty/line.c
@@ -189,7 +189,7 @@ prev_char_pos(const Line *self, index_type x, index_type num) {
     const CPUCell *ans = self->cpu_cells + x, *limit = self->cpu_cells - 1;
     if (ans->is_multicell) ans -= ans->x;
     while (num-- && --ans > limit) if (ans->is_multicell) ans -= ans->x;
-    return ans > limit ? ans - self->cpu_cells : self->xnum;
+    return ans > limit ? (index_type)(ans - self->cpu_cells) : self->xnum;
 }
 
 

Original file line number	Diff line number	Diff line change
`@@ -189,7 +189,7 @@ prev_char_pos(const Line *self, index_type x, index_type num) {`
`189`	`189`	`const CPUCell ans = self->cpu_cells + x, limit = self->cpu_cells - 1;`
`190`	`190`	`if (ans->is_multicell) ans -= ans->x;`
`191`	`191`	`while (num-- && --ans > limit) if (ans->is_multicell) ans -= ans->x;`
`192`		`- return ans > limit ? ans - self->cpu_cells : self->xnum;`
	`192`	`+ return ans > limit ? (index_type)(ans - self->cpu_cells) : self->xnum;`
`193`	`193`	`}`
`194`	`194`
`195`	`195`