1 //
2 //  Copyright 2019 The Abseil Authors.
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 //      https://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 ABSL_FLAGS_CONFIG_H_
17 #define ABSL_FLAGS_CONFIG_H_
18 
19 // Determine if we should strip string literals from the Flag objects.
20 // By default we strip string literals on mobile platforms.
21 #if !defined(ABSL_FLAGS_STRIP_NAMES)
22 
23 #if defined(__ANDROID__)
24 #define ABSL_FLAGS_STRIP_NAMES 1
25 
26 #elif defined(__APPLE__)
27 #include <TargetConditionals.h>
28 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
29 #define ABSL_FLAGS_STRIP_NAMES 1
30 #elif defined(TARGET_OS_EMBEDDED) && TARGET_OS_EMBEDDED
31 #define ABSL_FLAGS_STRIP_NAMES 1
32 #endif  // TARGET_OS_*
33 #endif
34 
35 #endif  // !defined(ABSL_FLAGS_STRIP_NAMES)
36 
37 #if !defined(ABSL_FLAGS_STRIP_NAMES)
38 // If ABSL_FLAGS_STRIP_NAMES wasn't set on the command line or above,
39 // the default is not to strip.
40 #define ABSL_FLAGS_STRIP_NAMES 0
41 #endif
42 
43 #if !defined(ABSL_FLAGS_STRIP_HELP)
44 // By default, if we strip names, we also strip help.
45 #define ABSL_FLAGS_STRIP_HELP ABSL_FLAGS_STRIP_NAMES
46 #endif
47 
48 // ABSL_FLAGS_INTERNAL_HAS_RTTI macro is used for selecting if we can use RTTI
49 // for flag type identification.
50 #ifdef ABSL_FLAGS_INTERNAL_HAS_RTTI
51 #error ABSL_FLAGS_INTERNAL_HAS_RTTI cannot be directly set
52 #elif !defined(__GNUC__) || defined(__GXX_RTTI)
53 #define ABSL_FLAGS_INTERNAL_HAS_RTTI 1
54 #endif  // !defined(__GNUC__) || defined(__GXX_RTTI)
55 
56 // These macros represent the "source of truth" for the list of supported
57 // built-in types.
58 #define ABSL_FLAGS_INTERNAL_BUILTIN_TYPES(A) \
59   A(bool, bool)                              \
60   A(short, short)                            \
61   A(unsigned short, unsigned_short)          \
62   A(int, int)                                \
63   A(unsigned int, unsigned_int)              \
64   A(long, long)                              \
65   A(unsigned long, unsigned_long)            \
66   A(long long, long_long)                    \
67   A(unsigned long long, unsigned_long_long)  \
68   A(double, double)                          \
69   A(float, float)
70 
71 #define ABSL_FLAGS_INTERNAL_SUPPORTED_TYPES(A) \
72   ABSL_FLAGS_INTERNAL_BUILTIN_TYPES(A)         \
73   A(std::string, std_string)                   \
74   A(std::vector<std::string>, std_vector_of_string)
75 
76 #endif  // ABSL_FLAGS_CONFIG_H_
77