Jean-Claude Monnin 51ca982aa1 Fix warning when NDEBUG is defined [-Wunused-variable]
Because `isPeek()` is side effect free this should not change anything.

The reason this warning is not shown in the unit tests is because the asserts
are always evaluated in the unit test:

#define RAPIDJSON_ASSERT(x) (!(x) ? throw AssertException(RAPIDJSON_STRINGIFY(x)) : (void)0u)
2018-11-21 13:24:06 +01:00
..