Remove old f(void) function signatures (NVIDIA#1708)

Function signatures of the form f(void) were necessary in C to express
"no parameters", but this is the default for f() in C++ and thus no
longer necessary.

Fixes: NVIDIA#1703

cub/cub/util_device.cuh

@@ -85,7 +85,7 @@ struct policy_wrapper_t : PolicyT
  * \brief Empty kernel for querying PTX manifest metadata (e.g., version) for the current device
  */
 template <typename T>
-CUB_DETAIL_KERNEL_ATTRIBUTES void EmptyKernel(void)
+CUB_DETAIL_KERNEL_ATTRIBUTES void EmptyKernel()
 {}
 
 #endif // DOXYGEN_SHOULD_SKIP_THIS

cub/test/mersenne.h

@@ -119,7 +119,7 @@ void init_by_array(unsigned int init_key[], int key_length)
 }
 
 /* generates a random number on [0,0xffffffff]-interval */
-unsigned int genrand_int32(void)
+unsigned int genrand_int32()
 {
   unsigned int y;
   static unsigned int mag01[2] = {0x0, MATRIX_A};

libcudacxx/include/cuda/std/detail/libcxx/include/cstdlib

@@ -42,13 +42,13 @@ long               strtol  (const char* restrict nptr, char** restrict endptr, i
 long long          strtoll (const char* restrict nptr, char** restrict endptr, int base); // C99
 unsigned long      strtoul (const char* restrict nptr, char** restrict endptr, int base);
 unsigned long long strtoull(const char* restrict nptr, char** restrict endptr, int base); // C99
-int rand(void);
+int rand();
 void srand(unsigned int seed);
 void* calloc(size_t nmemb, size_t size);
 void free(void* ptr);
 void* malloc(size_t size);
 void* realloc(void* ptr, size_t size);
-void abort(void);
+void abort();
 int atexit(void (*func)(void));
 void exit(int status);
 void _Exit(int status);

libcudacxx/test/libcudacxx/std/utilities/meta/meta.unary/meta.unary.cat/is_function.pass.cpp

@@ -82,7 +82,7 @@ typedef void (*FunctionPtr)();
 
 int main(int, char**)
 {
-  test_is_function<void(void)>();
+  test_is_function<void()>();
   test_is_function<int(int)>();
   test_is_function<int(int, double)>();
   test_is_function<int(Abstract*)>();

thrust/examples/arbitrary_transformation.cu

@@ -63,7 +63,7 @@ struct arbitrary_functor2
 };
 #endif // >= C++11
 
-int main(void)
+int main()
 {
   // allocate storage
   thrust::device_vector<float> A(5);

thrust/examples/basic_vector.cu

@@ -3,7 +3,7 @@
 
 #include <iostream>
 
-int main(void)
+int main()
 {
   // H has storage for 4 integers
   thrust::host_vector<int> H(4);

thrust/examples/bounding_box.cu

@@ -66,7 +66,7 @@ struct bbox_reduction : public thrust::binary_function<bbox, bbox, bbox>
   }
 };
 
-int main(void)
+int main()
 {
   const size_t N = 40;
   thrust::default_random_engine rng;

thrust/examples/bucket_sort2d.cu

@@ -13,7 +13,7 @@
 typedef thrust::tuple<float, float> vec2;
 
 // return a random vec2 in [0,1)^2
-vec2 make_random_vec2(void)
+vec2 make_random_vec2()
 {
   static thrust::default_random_engine rng;
   static thrust::uniform_real_distribution<float> u01(0.0f, 1.0f);
@@ -45,7 +45,7 @@ struct point_to_bucket_index : public thrust::unary_function<vec2, unsigned int>
   }
 };
 
-int main(void)
+int main()
 {
   const size_t N = 1000000;
 

thrust/examples/constant_iterator.cu

@@ -7,7 +7,7 @@
 #include <iostream>
 #include <iterator>
 
-int main(void)
+int main()
 {
   thrust::device_vector<int> data(4);
   data[0] = 3;

thrust/examples/counting_iterator.cu

@@ -6,7 +6,7 @@
 #include <iostream>
 #include <iterator>
 
-int main(void)
+int main()
 {
   // this example computes indices for all the nonzero values in a sequence
 

thrust/examples/cpp_integration/host.cpp

@@ -10,7 +10,7 @@
 // defines the function prototype
 #include "device.h"
 
-int main(void)
+int main()
 {
   // generate 20 random numbers on the host
   thrust::host_vector<int> h_vec(20);

thrust/examples/cuda/unwrap_pointer.cu

@@ -5,7 +5,7 @@
 #include <thrust/device_ptr.h>
 #include <thrust/device_vector.h>
 
-int main(void)
+int main()
 {
   size_t N = 10;
 

thrust/examples/cuda/wrap_pointer.cu

@@ -3,7 +3,7 @@
 #include <thrust/device_ptr.h>
 #include <thrust/fill.h>
 
-int main(void)
+int main()
 {
   size_t N = 10;
 

thrust/examples/device_ptr.cu

@@ -7,7 +7,7 @@
 #include <cassert>
 #include <iostream>
 
-int main(void)
+int main()
 {
   // allocate memory buffer to store 10 integers on the device
   thrust::device_ptr<int> d_ptr = thrust::device_malloc<int>(10);

thrust/examples/discrete_voronoi.cu

@@ -207,7 +207,7 @@ void display_time(timer& t)
   std::cout << "  ( " << 1e3 * t.elapsed() << "ms )" << std::endl;
 }
 
-int main(void)
+int main()
 {
   int m = 2048; // number of rows
   int n = 2048; // number of columns

thrust/examples/dot_products_with_zip.cu

@@ -38,7 +38,7 @@ thrust::host_vector<float> random_vector(const size_t N, unsigned int seed = thr
   return temp;
 }
 
-int main(void)
+int main()
 {
   // number of vectors
   const size_t N = 1000;

thrust/examples/expand.cu

@@ -60,7 +60,7 @@ void print(const std::string& s, const Vector& v)
   std::cout << std::endl;
 }
 
-int main(void)
+int main()
 {
   int counts[] = {3, 5, 2, 0, 1, 3, 4, 2, 4};
   int values[] = {1, 2, 3, 4, 5, 6, 7, 8, 9};

thrust/examples/fill_copy_sequence.cu

@@ -6,7 +6,7 @@
 
 #include <iostream>
 
-int main(void)
+int main()
 {
   // initialize all ten integers of a device_vector to 1
   thrust::device_vector<int> D(10, 1);

thrust/examples/histogram.cu

@@ -139,7 +139,7 @@ void sparse_histogram(const Vector1& input, Vector2& histogram_values, Vector3&
   print_vector("histogram counts", histogram_counts);
 }
 
-int main(void)
+int main()
 {
   thrust::default_random_engine rng;
   thrust::uniform_int_distribution<int> dist(0, 9);

thrust/examples/include/timer.h

@@ -41,25 +41,25 @@ struct timer
   cudaEvent_t start;
   cudaEvent_t end;
 
-  timer(void)
+  timer()
   {
     cuda_safe_call(cudaEventCreate(&start));
     cuda_safe_call(cudaEventCreate(&end));
     restart();
   }
 
-  ~timer(void)
+  ~timer()
   {
     cuda_safe_call(cudaEventDestroy(start));
     cuda_safe_call(cudaEventDestroy(end));
   }
 
-  void restart(void)
+  void restart()
   {
     cuda_safe_call(cudaEventRecord(start, 0));
   }
 
-  double elapsed(void)
+  double elapsed()
   {
     cuda_safe_call(cudaEventRecord(end, 0));
     cuda_safe_call(cudaEventSynchronize(end));
@@ -69,7 +69,7 @@ struct timer
     return ms_elapsed / 1e3;
   }
 
-  double epsilon(void)
+  double epsilon()
   {
     return 0.5e-6;
   }
@@ -85,26 +85,26 @@ struct timer
   clock_t start;
   clock_t end;
 
-  timer(void)
+  timer()
   {
     restart();
   }
 
-  ~timer(void) {}
+  ~timer() {}
 
-  void restart(void)
+  void restart()
   {
     start = clock();
   }
 
-  double elapsed(void)
+  double elapsed()
   {
     end = clock();
 
     return static_cast<double>(end - start) / static_cast<double>(CLOCKS_PER_SEC);
   }
 
-  double epsilon(void)
+  double epsilon()
   {
     return 1.0 / static_cast<double>(CLOCKS_PER_SEC);
   }

thrust/examples/lambda.cu

@@ -36,7 +36,7 @@ struct saxpy_functor : public thrust::binary_function<float, float, float>
   }
 };
 
-int main(void)
+int main()
 {
   // input data
   float a    = 2.0f;

thrust/examples/lexicographical_sort.cu

@@ -49,7 +49,7 @@ thrust::host_vector<int> random_vector(size_t N)
   return vec;
 }
 
-int main(void)
+int main()
 {
   size_t N = 20;
 

thrust/examples/max_abs_diff.cu

@@ -17,7 +17,7 @@ struct abs_diff : public thrust::binary_function<T, T, T>
   }
 };
 
-int main(void)
+int main()
 {
   thrust::device_vector<float> d_a(4);
   thrust::device_vector<float> d_b(4);

thrust/examples/minmax.cu

@@ -47,7 +47,7 @@ struct minmax_binary_op : public thrust::binary_function<minmax_pair<T>, minmax_
   }
 };
 
-int main(void)
+int main()
 {
   // input size
   size_t N = 10;

thrust/examples/mode.cu

@@ -17,7 +17,7 @@
 //
 // [1] http://en.wikipedia.org/wiki/Mode_(statistics)
 
-int main(void)
+int main()
 {
   const size_t N = 30;
   const size_t M = 10;

thrust/examples/monte_carlo.cu

@@ -60,7 +60,7 @@ struct estimate_pi : public thrust::unary_function<unsigned int, float>
   }
 };
 
-int main(void)
+int main()
 {
   // use 30K independent seeds
   int M = 30000;

thrust/examples/monte_carlo_disjoint_sequences.cu

@@ -67,7 +67,7 @@ struct estimate_pi : public thrust::unary_function<unsigned int, float>
   }
 };
 
-int main(void)
+int main()
 {
   // use 30K subsequences of random numbers
   int M = 30000;

thrust/examples/norm.cu

@@ -27,7 +27,7 @@ struct square
   }
 };
 
-int main(void)
+int main()
 {
   // initialize host array
   float x[4] = {1.0, 2.0, 3.0, 4.0};

thrust/examples/padded_grid_reduction.cu

@@ -72,7 +72,7 @@ struct reduce_tuple
   }
 };
 
-int main(void)
+int main()
 {
   int M = 10; // number of rows
   int n = 11; // number of columns excluding padding

thrust/examples/permutation_iterator.cu

@@ -7,7 +7,7 @@
 // this example fuses a gather operation with a reduction for
 // greater efficiency than separate gather() and reduce() calls
 
-int main(void)
+int main()
 {
   // gather locations
   thrust::device_vector<int> map(4);

thrust/examples/raw_reference_cast.cu

@@ -75,7 +75,7 @@ void print(const std::string& name, const Vector& v)
   std::cout << "\n";
 }
 
-int main(void)
+int main()
 {
   typedef thrust::device_vector<int> Vector;
   typedef Vector::iterator Iterator;

thrust/examples/remove_points2d.cu

@@ -30,7 +30,7 @@ struct is_outside_circle
   }
 };
 
-int main(void)
+int main()
 {
   const size_t N = 20;
 

thrust/examples/repeated_range.cu

@@ -49,12 +49,12 @@ public:
       , repeats(repeats)
   {}
 
-  iterator begin(void) const
+  iterator begin() const
   {
     return PermutationIterator(first, TransformIterator(CountingIterator(0), repeat_functor(repeats)));
   }
 
-  iterator end(void) const
+  iterator end() const
   {
     return begin() + repeats * (last - first);
   }
@@ -65,7 +65,7 @@ protected:
   difference_type repeats;
 };
 
-int main(void)
+int main()
 {
   thrust::device_vector<int> data(4);
   data[0] = 10;

thrust/examples/run_length_decoding.cu

@@ -12,7 +12,7 @@
 //
 // [1] http://en.wikipedia.org/wiki/Run-length_encoding
 
-int main(void)
+int main()
 {
   // allocate storage for compressed input and run lengths
   thrust::device_vector<char> input(6);