third_party/highway/hwy/print.h

   1 // Copyright 2022 Google LLC
   2 // SPDX-License-Identifier: Apache-2.0
   3 //
   4 // Licensed under the Apache License, Version 2.0 (the "License");
   5 // you may not use this file except in compliance with the License.
   6 // You may obtain a copy of the License at
   7 //
   8 //      http://www.apache.org/licenses/LICENSE-2.0
   9 //
  10 // Unless required by applicable law or agreed to in writing, software
  11 // distributed under the License is distributed on an "AS IS" BASIS,
  12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 // See the License for the specific language governing permissions and
  14 // limitations under the License.
  15
  16 #ifndef HWY_PRINT_H_
  17 #define HWY_PRINT_H_
  18
  19 // Helpers for printing vector lanes.
  20
  21 #include <stddef.h>
  22 #include <stdio.h>
  23
  24 #include "hwy/base.h"
  25 #include "hwy/highway_export.h"
  26
  27 namespace hwy {
  28
  29 namespace detail {
  30
  31 // For implementing value comparisons etc. as type-erased functions to reduce
  32 // template bloat.
  33 struct TypeInfo {
  34   size_t sizeof_t;
  35   bool is_float;
  36   bool is_signed;
  37 };
  38
  39 template <typename T>
  40 HWY_INLINE TypeInfo MakeTypeInfo() {
  41   TypeInfo info;
  42   info.sizeof_t = sizeof(T);
  43   info.is_float = IsFloat<T>();
  44   info.is_signed = IsSigned<T>();
  45   return info;
  46 }
  47
  48 HWY_DLLEXPORT void TypeName(const TypeInfo& info, size_t N, char* string100);
  49 HWY_DLLEXPORT void ToString(const TypeInfo& info, const void* ptr,
  50                             char* string100);
  51
  52 HWY_DLLEXPORT void PrintArray(const TypeInfo& info, const char* caption,
  53                               const void* array_void, size_t N,
  54                               size_t lane_u = 0, size_t max_lanes = 7);
  55
  56 }  // namespace detail
  57
  58 template <typename T>
  59 HWY_NOINLINE void PrintValue(T value) {
  60   char str[100];
  61   detail::ToString(hwy::detail::MakeTypeInfo<T>(), &value, str);
  62   fprintf(stderr, "%s,", str);
  63 }
  64
  65 template <typename T>
  66 HWY_NOINLINE void PrintArray(const T* value, size_t count) {
  67   detail::PrintArray(hwy::detail::MakeTypeInfo<T>(), "", value, count, 0,
  68                      count);
  69 }
  70
  71 }  // namespace hwy
  72
  73 #endif  // HWY_PRINT_H_