utils/benchmark/src/benchmark_register.h

   1 #ifndef BENCHMARK_REGISTER_H
   2 #define BENCHMARK_REGISTER_H
   3
   4 #include <vector>
   5
   6 #include "check.h"
   7
   8 template <typename T>
   9 void AddRange(std::vector<T>* dst, T lo, T hi, int mult) {
  10   CHECK_GE(lo, 0);
  11   CHECK_GE(hi, lo);
  12   CHECK_GE(mult, 2);
  13
  14   // Add "lo"
  15   dst->push_back(lo);
  16
  17   static const T kmax = std::numeric_limits<T>::max();
  18
  19   // Now space out the benchmarks in multiples of "mult"
  20   for (T i = 1; i < kmax / mult; i *= mult) {
  21     if (i >= hi) break;
  22     if (i > lo) {
  23       dst->push_back(i);
  24     }
  25   }
  26
  27   // Add "hi" (if different from "lo")
  28   if (hi != lo) {
  29     dst->push_back(hi);
  30   }
  31 }
  32
  33 #endif  // BENCHMARK_REGISTER_H