VTK  9.4.20250102
vtkTemplateAliasMacro.h
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1// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2// SPDX-License-Identifier: BSD-3-Clause
27#ifndef vtkTemplateAliasMacro_h
28#define vtkTemplateAliasMacro_h
29
30#include "vtkTypeTraits.h"
31
32// Allow individual switching of support for each scalar size/signedness.
33// These could be made advanced user options to be configured by CMake.
34#define VTK_USE_INT8 1
35#define VTK_USE_UINT8 1
36#define VTK_USE_INT16 1
37#define VTK_USE_UINT16 1
38#define VTK_USE_INT32 1
39#define VTK_USE_UINT32 1
40#define VTK_USE_INT64 1
41#define VTK_USE_UINT64 1
42#define VTK_USE_FLOAT32 1
43#define VTK_USE_FLOAT64 1
44
45//--------------------------------------------------------------------------
46
47// Define helper macros to switch types on and off.
48#define vtkTemplateAliasMacroCase(typeN, call) \
49 vtkTemplateAliasMacroCase0(typeN, call, VTK_TYPE_SIZED_##typeN)
50#define vtkTemplateAliasMacroCase0(typeN, call, sized) \
51 vtkTemplateAliasMacroCase1(typeN, call, sized)
52#define vtkTemplateAliasMacroCase1(typeN, call, sized) \
53 vtkTemplateAliasMacroCase2(typeN, call, VTK_USE_##sized)
54#define vtkTemplateAliasMacroCase2(typeN, call, value) \
55 vtkTemplateAliasMacroCase3(typeN, call, value)
56#define vtkTemplateAliasMacroCase3(typeN, call, value) \
57 vtkTemplateAliasMacroCase_##value(typeN, call)
58#define vtkTemplateAliasMacroCase_0(typeN, call) \
59 case VTK_##typeN: \
60 { \
61 vtkGenericWarningMacro("Support for VTK_" #typeN " not compiled."); \
62 }; \
63 break
64#define vtkTemplateAliasMacroCase_1(typeN, call) \
65 case VTK_##typeN: \
66 { \
67 typedef vtkTypeTraits<VTK_TYPE_NAME_##typeN>::SizedType VTK_TT; \
68 call; \
69 }; \
70 break
71
72// Define a macro to dispatch calls to a template instantiated over
73// the aliased scalar types.
74#define vtkTemplateAliasMacro(call) \
75 vtkTemplateAliasMacroCase(DOUBLE, call); \
76 vtkTemplateAliasMacroCase(FLOAT, call); \
77 vtkTemplateAliasMacroCase(LONG_LONG, call); \
78 vtkTemplateAliasMacroCase(UNSIGNED_LONG_LONG, call); \
79 vtkTemplateAliasMacroCase(ID_TYPE, call); \
80 vtkTemplateAliasMacroCase(LONG, call); \
81 vtkTemplateAliasMacroCase(UNSIGNED_LONG, call); \
82 vtkTemplateAliasMacroCase(INT, call); \
83 vtkTemplateAliasMacroCase(UNSIGNED_INT, call); \
84 vtkTemplateAliasMacroCase(SHORT, call); \
85 vtkTemplateAliasMacroCase(UNSIGNED_SHORT, call); \
86 vtkTemplateAliasMacroCase(CHAR, call); \
87 vtkTemplateAliasMacroCase(SIGNED_CHAR, call); \
88 vtkTemplateAliasMacroCase(UNSIGNED_CHAR, call)
89
90#endif
91// VTK-HeaderTest-Exclude: vtkTemplateAliasMacro.h
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