Add explicit type conversions where necessary: components/

These are cases that are implicitly narrowing today, and must do so
explicitly in order to enable -Wc++11-narrowing.  No behavior change
intended.

Bug: 1216696
Change-Id: Ic8f194bb0ab9a247d3e84cc59a687285cdb96d48
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2947886
Auto-Submit: Peter Kasting <pkasting@chromium.org>
Commit-Queue: Jochen Eisinger <jochen@chromium.org>
Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#890878}
NOKEYCHECK=True
GitOrigin-RevId: 379c52be13901beae4f773fe9e8054ad42a186c4

1 files changed, 4 insertions, 2 deletions

diff --git a/type_ztf.h b/type_ztf.h
index 42798b2..8ecc9ca 100644
--- a/type_ztf.h
+++ b/type_ztf.h
@@ -38,11 +38,13 @@ struct DeltaLineCol {
 };
 
 constexpr DeltaLineCol operator-(const LineCol& lhs, const LineCol& rhs) {
-  return DeltaLineCol{lhs.line - rhs.line, lhs.col - rhs.col};
+  return DeltaLineCol{static_cast<dim_t>(lhs.line - rhs.line),
+                      static_cast<dim_t>(lhs.col - rhs.col)};
 }
 
 constexpr LineCol operator+(const LineCol& lhs, const DeltaLineCol& rhs) {
-  return LineCol{lhs.line + rhs.line, lhs.col + rhs.col};
+  return LineCol{static_cast<dim_t>(lhs.line + rhs.line),
+                 static_cast<dim_t>(lhs.col + rhs.col)};
 }
 
 }  // namespace ztf