fix: fib bench on windows

Author: not-matthias

examples/google_benchmark_cmake/fibonacci_bench.hpp

@@ -8,7 +8,7 @@ static uint64_t fibonacci_recursive(int n) {
 }
 
 static void BM_FibonacciRecursive(benchmark::State& state) {
-  int n = state.range(0);
+  int n = static_cast<int>(state.range(0));
   for (auto _ : state) {
     uint64_t result = fibonacci_recursive(n);
     benchmark::DoNotOptimize(result);
@@ -29,7 +29,7 @@ static uint64_t fibonacci_iterative(int n) {
 }
 
 static void BM_FibonacciIterative(benchmark::State& state) {
-  int n = state.range(0);
+  int n = static_cast<int>(state.range(0));
   for (auto _ : state) {
     uint64_t result = fibonacci_iterative(n);
     benchmark::DoNotOptimize(result);