[xmfcx]

Description

• Follow up on: feat: gpu ground segmentation #11371

It failed compilation for me. (I checked, it actually passed in CI)

This adds missing include for FLT_MAX usage, #include <cfloat>

mfc@whale:~/projects/autoware$ nvcc -V
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2025 NVIDIA Corporation
Built on Fri_Feb_21_20:23:50_PST_2025
Cuda compilation tools, release 12.8, V12.8.93
Build cuda_12.8.r12.8/compiler.35583870_0

https://github.com/autowarefoundation/autoware/blob/8085940071de40222441e61a47b53468eed13ac6/amd64.env#L10-L12

Maybe it would compile for CUDA 12.4 but it is better to be on the safe side.

Error

/home/mfc/projects/autoware/src/universe/autoware_universe/perception/autoware_ground_segmentation_cuda/src/cuda_scan_ground_segmentation/cuda_scan_ground_segmentation_filter.cu(46): error: identifier "FLT_MAX" is undefined
      new_cell.gnd_height_min = FLT_MAX;
                                ^

/home/mfc/projects/autoware/src/universe/autoware_universe/perception/autoware_ground_segmentation_cuda/src/cuda_scan_ground_segmentation/cuda_scan_ground_segmentation_filter.cu(286): error: identifier "FLT_MAX" is undefined
    float t_gnd_height_min = FLT_MAX;
                             ^

2 errors detected in the compilation of "/home/mfc/projects/autoware/src/universe/autoware_universe/perception/autoware_ground_segmentation_cuda/src/cuda_scan_ground_segmentation/cuda_scan_ground_segmentation_filter.cu".
CMake Error at cuda_ground_segmentation_lib_generated_cuda_scan_ground_segmentation_filter.cu.o.Release.cmake:280 (message):
  Error generating file
  /home/mfc/projects/autoware/build/autoware_ground_segmentation_cuda/CMakeFiles/cuda_ground_segmentation_lib.dir/src/cuda_scan_ground_segmentation/./cuda_ground_segmentation_lib_generated_cuda_scan_ground_segmentation_filter.cu.o

How was this PR tested?

Locally and in CI.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 17.99%. Comparing base (f12e8ab) to head (5c66929).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #11850      +/-   ##
==========================================
- Coverage   18.02%   17.99%   -0.03%     
==========================================
  Files        1809     1811       +2     
  Lines      125537   125728     +191     
  Branches    43624    43793     +169     
==========================================
- Hits        22624    22623       -1     
- Misses      84064    84256     +192     
  Partials    18849    18849              

Flag	Coverage Δ		*Carryforward flag
daily	20.46% <ø> (ø)		Carriedforward from 7fb4b78
daily-cuda	18.01% <ø> (ø)		Carriedforward from 7fb4b78
differential-cuda	0.00% <ø> (?)
total-cuda	18.01% <ø> (+<0.01%)	⬆️	Carriedforward from 7fb4b78

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