[CodeStyle] fix three types of compiler warnings on macOS

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PR types

Others

PR changes

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Describe

Fix uninitialized, tautological-constant-out-of-range-compare and literal-conversion warning on macOS.

cat before.log | grep "\[\-W" |grep -v party | awk '{print $NF}'|sort|uniq -c|sort -nr
   4 [-Wc++17-extensions]
   3 [-Wunknown-warning-option]
   2 [-Wexceptions]
   1 [-Wuninitialized]
   1 [-Wtautological-constant-out-of-range-compare]
   1 [-Wreturn-type-c-linkage]
   1 [-Wpragma-pack]
   1 [-Wliteral-conversion]

cat after.log | grep "\[\-W" |grep -v party | awk '{print $NF}'|sort|uniq -c|sort -nr
   4 [-Wc++17-extensions]
   2 [-Wexceptions]
   1 [-Wreturn-type-c-linkage]
   1 [-Wpragma-pack]

Compiler Warning tracking:

• [CodeStyle] Compiler Warning tracking issue #47143

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