exporter: mark BlockTimer::get_ms() const

this function does not mutate the state of `BlockTimer`, so mark
it with `const` specifier, for better readability.

Signed-off-by: Kefu Chai <tchaikov@gmail.com>

diff --git a/src/exporter/util.cc b/src/exporter/util.cc
index 06a8338b8a503837cef6490d84203a2a4df94ca3..9b5108390cb8a6f6826bf7e0ad3a00181f5c41e7 100644 (file)
--- a/src/exporter/util.cc
+++ b/src/exporter/util.cc
@@ -22,7 +22,7 @@ BlockTimer::~BlockTimer() {
 }
 
 // useful with stop
-double BlockTimer::get_ms() {
+double BlockTimer::get_ms() const {
        return ms.count();
 }
 

diff --git a/src/exporter/util.h b/src/exporter/util.h
index 2628864d515841788e2c61cc4e090e19ce626116..243568b14d21d61beb6a9108306dec84140892b5 100644 (file)
--- a/src/exporter/util.h
+++ b/src/exporter/util.h
@@ -9,7 +9,7 @@ class BlockTimer {
        BlockTimer(std::string file, std::string function);
        ~BlockTimer();
        void stop();
-       double get_ms();
+       double get_ms() const;
  private:
        std::chrono::duration<double, std::milli> ms;
        std::string file, function;