naming consistency for feature test macros (#1891)

* naming consistency for feature test macros

Author: ericniebler

examples/benchmark/static_thread_pool_bulk_enqueue.cpp

@@ -17,7 +17,7 @@
 #include "./common.hpp"
 #include <exec/static_thread_pool.hpp>
 
-#if STDEXEC_HAS_STD_RANGES()
+#if !STDEXEC_NO_STDCPP_RANGES()
 #  include <exec/sequence/ignore_all_values.hpp>
 #  include <ranges>
 

examples/benchmark/static_thread_pool_bulk_enqueue_nested.cpp

@@ -17,7 +17,7 @@
 #include "./common.hpp"
 #include <exec/static_thread_pool.hpp>
 
-#if STDEXEC_HAS_STD_RANGES()
+#if !STDEXEC_NO_STDCPP_RANGES()
 #  include <exec/sequence/ignore_all_values.hpp>
 #  include <ranges>
 

examples/hello_coro.cpp

@@ -18,7 +18,7 @@
 // Pull in the reference implementation of P2300:
 #include <stdexec/execution.hpp>
 
-#if !STDEXEC_NO_STD_COROUTINES() && !STDEXEC_NVHPC()
+#if !STDEXEC_NO_STDCPP_COROUTINES() && !STDEXEC_NVHPC()
 #  include <exec/task.hpp>
 
 using namespace stdexec;

examples/nvexec/maxwell/stdpar.cuh

@@ -20,7 +20,7 @@
 
 #include "common.cuh"  // IWYU pragma: keep
 
-#if STDEXEC_HAS_PARALLEL_ALGORITHMS()
+#if !STDEXEC_NO_STDCPP_PARALLEL_ALGORITHMS()
 
 #  if STDEXEC_CUDA_COMPILATION()
 #    include "../include/nvexec/detail/throw_on_cuda_error.cuh"
@@ -81,4 +81,4 @@ void run_stdpar(float            dt,
                      });
 }
 
-#endif
+#endif  // !STDEXEC_NO_STDCPP_PARALLEL_ALGORITHMS()

examples/nvexec/maxwell_cpu_mt.cu

@@ -35,7 +35,7 @@ auto main(int argc, char *argv[]) -> int
               << "\t--write-vtk\n"
               << "\t--iterations\n"
               << "\t--run-std\n"
-              << (STDEXEC_HAS_PARALLEL_ALGORITHMS() ? "\t--run-stdpar\n" : "")
+              << (STDEXEC_NO_STDCPP_PARALLEL_ALGORITHMS() ? "" : "\t--run-stdpar\n")
               << "\t--run-thread-pool-scheduler\n"
               << "\t--N\n"
               << std::endl;
@@ -79,7 +79,7 @@ auto main(int argc, char *argv[]) -> int
     run_std(dt, write_vtk, n_iterations, grid, "CPU (std)");
   }
 
-#  if STDEXEC_HAS_PARALLEL_ALGORITHMS()
+#  if !STDEXEC_NO_STDCPP_PARALLEL_ALGORITHMS()
   if (value(params, "run-stdpar"))
   {
     bool const       gpu    = is_gpu_policy(stdexec::par_unseq);

examples/nvexec/maxwell_gpu_s.cu

@@ -30,7 +30,7 @@ auto main(int argc, char *argv[]) -> int
     std::cout << "Usage: " << argv[0] << " [OPTION]...\n"
               << "\t--write-vtk\n"
               << "\t--iterations\n"
-              << (STDEXEC_HAS_PARALLEL_ALGORITHMS() ? "\t--run-stdpar\n" : "")  //
+              << (STDEXEC_NO_STDCPP_PARALLEL_ALGORITHMS() ? "" : "\t--run-stdpar\n")  //
               << "\t--run-cuda\n"
               << "\t--run-stream-scheduler\n"
               << "\t--N\n"
@@ -75,7 +75,7 @@ auto main(int argc, char *argv[]) -> int
     run_snr_on("GPU (snr cuda stream)", stream_ctx.get_scheduler());
   }
 
-#  if STDEXEC_HAS_PARALLEL_ALGORITHMS()
+#  if !STDEXEC_NO_STDCPP_PARALLEL_ALGORITHMS()
   if (value(params, "run-stdpar"))
   {
     bool const       gpu    = is_gpu_policy(stdexec::par_unseq);
@@ -87,7 +87,7 @@ auto main(int argc, char *argv[]) -> int
 
     run_stdpar(dt, write_vtk, n_iterations, grid, stdexec::par_unseq, method);
   }
-#  endif  // STDEXEC_HAS_PARALLEL_ALGORITHMS()
+#  endif  // !STDEXEC_NO_STDCPP_PARALLEL_ALGORITHMS()
 }
 
 #endif  // !defined(STDEXEC_CLANGD_INVOKED)

examples/server_theme/let_value.cpp

@@ -52,7 +52,7 @@
 #include "exec/start_detached.hpp"
 #include "exec/static_thread_pool.hpp"
 
-#if !STDEXEC_NO_STD_EXCEPTIONS()
+#if !STDEXEC_NO_STDCPP_EXCEPTIONS()
 namespace ex = stdexec;
 
 struct http_request
@@ -177,4 +177,4 @@ int main()
   std::cout << "This example requires C++ exceptions to be enabled.\n";
   return 0;
 }
-#endif  // !STDEXEC_NO_STD_EXCEPTIONS()
+#endif  // !STDEXEC_NO_STDCPP_EXCEPTIONS()

include/exec/detail/bit_cast.hpp

@@ -21,19 +21,20 @@
 #if __has_include(<bit>)
 #  include <bit>
 #  if __cpp_lib_bit_cast >= 2018'06L
-#    define STDEXEC_HAS_BIT_CAST
+#    define STDEXEC_NO_STDCPP_BIT_CAST() 0
+#  else
+#    define STDEXEC_NO_STDCPP_BIT_CAST() 1
 #  endif
 #endif
 
 #include <cstring>
 
 namespace experimental::execution
 {
-
   template <class _Ty>
   concept __trivially_copyable = STDEXEC_IS_TRIVIALLY_COPYABLE(_Ty);
 
-#if defined(STDEXEC_HAS_BIT_CAST)
+#if !STDEXEC_NO_STDCPP_BIT_CAST()
   using std::bit_cast;
 #else
   template <__trivially_copyable _To, __trivially_copyable _From>

include/exec/sequence/iterate.hpp

@@ -18,7 +18,7 @@
 
 #include "../../stdexec/__detail/__config.hpp"
 
-#if STDEXEC_HAS_STD_RANGES()
+#if !STDEXEC_NO_STDCPP_RANGES()
 
 #  include "../../stdexec/__detail/__optional.hpp"
 #  include "../../stdexec/execution.hpp"
@@ -241,4 +241,4 @@ namespace experimental::execution
 
 namespace exec = experimental::execution;
 
-#endif  // STDEXEC_HAS_STD_RANGES()
+#endif  // !STDEXEC_NO_STDCPP_RANGES()

include/exec/sequence_senders.hpp

@@ -245,7 +245,7 @@ namespace experimental::execution
   struct _FAILED_TO_COMPUTE_SEQUENCE_ITEM_TYPES_
   {};
 
-#if STDEXEC_NO_STD_CONSTEXPR_EXCEPTIONS()
+#if STDEXEC_NO_STDCPP_CONSTEXPR_EXCEPTIONS()
 
   template <class... _What, class... _Values>
   [[nodiscard]]