Fix "unsafe narrowing" warnings in absl, 5/n.

Addresses failures with the following, in some files:
-Wshorten-64-to-32
-Wimplicit-int-conversion
-Wsign-compare
-Wsign-conversion
-Wtautological-unsigned-zero-compare

(This specific CL focuses on .cc files in strings/internal/.)

Bug: chromium:1292951
PiperOrigin-RevId: 468215101
Change-Id: I07fa487bcf2cf62d403489c3be7a5997cdef8987

1 files changed, 3 insertions, 2 deletions

diff --git a/absl/strings/internal/str_format/bind.cc b/absl/strings/internal/str_format/bind.cc
index c988ba8f..77a42223 100644
--- a/absl/strings/internal/str_format/bind.cc
+++ b/absl/strings/internal/str_format/bind.cc
@@ -32,7 +32,8 @@ inline bool BindFromPosition(int position, int* value,
     return false;
   }
   // -1 because positions are 1-based
-  return FormatArgImplFriend::ToInt(pack[position - 1], value);
+  return FormatArgImplFriend::ToInt(pack[static_cast<size_t>(position) - 1],
+                                    value);
 }
 
 class ArgContext {
@@ -56,7 +57,7 @@ inline bool ArgContext::Bind(const UnboundConversion* unbound,
   const FormatArgImpl* arg = nullptr;
   int arg_position = unbound->arg_position;
   if (static_cast<size_t>(arg_position - 1) >= pack_.size()) return false;
-  arg = &pack_[arg_position - 1];  // 1-based
+  arg = &pack_[static_cast<size_t>(arg_position - 1)];  // 1-based
 
   if (unbound->flags != Flags::kBasic) {
     int width = unbound->width.value();