Make DrakeLcmParams an aggregate for C++20 (RobotLocomotion#17845)

This type is constructed as an aggregate in drake_lcm.cc. However, because there are constructors, the type is not actually an aggregate causing "error: no matching constructor for initialization of drake::lcm::DrakeLcmParams" when compiling in C++20 mode.
mcx · Sep 6, 2022 · ec984ce · ec984ce
1 parent 78eaea8
commit ec984ce
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diff --git a/lcm/BUILD.bazel b/lcm/BUILD.bazel
@@ -50,7 +50,6 @@ drake_cc_library(
 
 drake_cc_library(
     name = "drake_lcm_params",
-    srcs = ["drake_lcm_params.cc"],
     hdrs = ["drake_lcm_params.h"],
     deps = [
         "//common:essential",

diff --git a/lcm/drake_lcm_params.cc b/lcm/drake_lcm_params.cc
diff --git a/lcm/drake_lcm_params.h b/lcm/drake_lcm_params.h
@@ -10,10 +10,6 @@ namespace lcm {
 
 /** The set of parameters for configuring DrakeLcm.  */
 struct DrakeLcmParams {
-  DRAKE_DEFAULT_COPY_AND_MOVE_AND_ASSIGN(DrakeLcmParams)
-  DrakeLcmParams() = default;
-  ~DrakeLcmParams();
-
   /** Passes this object to an Archive.
   Refer to @ref yaml_serialization "YAML Serialization" for background. */
   template <typename Archive>