tree 1d16be8e675b19f81d177bf7418caefbd953bc59
parent 4e6af40b8902bffb1bca480bb38dfe2421065ee1
author Benjamin Peterson <bp@benjamin.pe> 1523952560 -0700
committer Copybara-Service <copybara-piper@google.com> 1523952623 -0700

Fix signedness warnings in cpp tests.

The compiler infers the type of unsuffixed literals as signed. That causes GCC
warnings like this with gtest's ASSERT_EQ if one side is a literal and other is
an unsigned type:
```
In file included from src/test/cpp/option_processor_test.cc:23:0:
external/com_google_googletest/googletest/include/gtest/gtest.h: In instantiation of 'testing::AssertionResult testing::internal::CmpHelperEQ(const char*, const char*, const T1&, const T2&) [with T1 = int; T2 = long unsigned int]':
external/com_google_googletest/googletest/include/gtest/gtest.h:1449:23:   required from 'static testing::AssertionResult testing::internal::EqHelper<lhs_is_null_literal>::Compare(const char*, const char*, const T1&, const T2&) [with T1 = int; T2 = long unsigned int; bool lhs_is_null_literal = false]'
src/test/cpp/option_processor_test.cc:98:3:   required from here
external/com_google_googletest/googletest/include/gtest/gtest.h:1421:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if (lhs == rhs) {
       ~~~~^~~~~~
```

Closes #4994.

Change-Id: Ic40e8714531aaa0e0d748dd59658a6de15bfe12d
PiperOrigin-RevId: 193161516