commit 99f7c6a79a63b99943ebb7fca8ac96f90a6a60a4
author Austin Schuh <austin.linux@gmail.com> Tue Jun 25 22:07:44 2024 -0700
committer Austin Schuh <austin.linux@gmail.com> Sat Jul 20 11:40:35 2024 -0700
tree f62d61eae9cc18132596df7f52d6ec28d09dc46a
parent 6927bc31c854f264ff7d431918b008620b6b4712

Move over to ABSL logging and flags.

Removes gperftools too since that wants gflags.

Here come the fireworks.

Change-Id: I79cb7bcf60f1047fbfa28bfffc21a0fd692e4b1c
Signed-off-by: Austin Schuh <austin.linux@gmail.com>

frc971/imu/imu_calibrator-tmpl.h

diff --git a/frc971/imu/imu_calibrator-tmpl.h b/frc971/imu/imu_calibrator-tmpl.h
index 6743106..49d5c20 100644
--- a/frc971/imu/imu_calibrator-tmpl.h
+++ b/frc971/imu/imu_calibrator-tmpl.h
@@ -1,7 +1,10 @@
+#include "absl/flags/declare.h"
+#include "absl/flags/flag.h"
+
 #include "frc971/imu/imu_calibrator.h"
 #include "frc971/math/interpolate.h"
 
-DECLARE_int32(imu_zeroing_buffer);
+ABSL_DECLARE_FLAG(int32_t, imu_zeroing_buffer);
 
 namespace frc971::imu {
 
@@ -26,7 +29,8 @@
   const bool plausibly_stationary =
       reading.gyro.squaredNorm() < kGyroMaxZeroingValue * kGyroMaxZeroingValue;
   bool stationary = plausibly_stationary;
-  int earliest_affected_index = readings.size() - FLAGS_imu_zeroing_buffer;
+  int earliest_affected_index =
+      readings.size() - absl::GetFlag(FLAGS_imu_zeroing_buffer);
   for (size_t index = std::max(0, earliest_affected_index);
        index < readings.size(); ++index) {
     if (!plausibly_stationary) {
@@ -75,7 +79,8 @@
 template <typename Scalar>
 void ImuCalibrator<Scalar>::EvaluateRelativeResiduals() {
   for (const auto &readings : imu_readings_) {
-    CHECK_LT(static_cast<size_t>(FLAGS_imu_zeroing_buffer * 2), readings.size())
+    CHECK_LT(static_cast<size_t>(absl::GetFlag(FLAGS_imu_zeroing_buffer) * 2),
+             readings.size())
         << ": Insufficient readings to perform calibration.";
   }
   Scalar base_clock = imu_readings_[origin_index_][0].capture_time_adjusted;