1 /* 2 * Copyright 2011 Google Inc. All Rights Reserved. 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 17 #ifndef SFNTLY_CPP_SRC_SFNTLY_PORT_TYPE_H_ 18 #define SFNTLY_CPP_SRC_SFNTLY_PORT_TYPE_H_ 19 20 #include <assert.h> 21 22 #if defined (_MSC_VER) && (_MSC_VER < 1600) 23 typedef unsigned char uint8_t; 24 typedef signed char int8_t; 25 typedef unsigned __int16 uint16_t; 26 typedef signed __int16 int16_t; 27 typedef unsigned __int32 uint32_t; 28 typedef signed __int32 int32_t; 29 typedef unsigned __int64 uint64_t; 30 typedef signed __int64 int64_t; 31 // Definitions to avoid ICU redefinition issue 32 #define U_HAVE_INT8_T 1 33 #define U_HAVE_UINT8_T 1 34 #define U_HAVE_INT16_T 1 35 #define U_HAVE_UINT16_T 1 36 #define U_HAVE_INT32_T 1 37 #define U_HAVE_UINT32_T 1 38 #define U_HAVE_INT64_T 1 39 #define U_HAVE_UINT64_T 1 40 #else 41 #include <stdint.h> 42 #endif 43 44 #include <cstddef> 45 #include <vector> 46 #include <set> 47 48 namespace sfntly { 49 50 typedef uint8_t byte_t; 51 typedef uint16_t word_t; 52 typedef uint32_t dword_t; 53 typedef uint64_t qword_t; 54 55 typedef std::vector<byte_t> ByteVector; 56 typedef std::vector<int32_t> IntegerList; 57 typedef std::set<int32_t> IntegerSet; 58 59 // A macro to disallow the copy constructor and operator= functions. 60 // This should be used in the private: declarations for a class. 61 #define NO_COPY_AND_ASSIGN(TypeName) \ 62 TypeName(const TypeName&); \ 63 void operator=(const TypeName&) 64 65 } // namespace sfntly 66 67 // Make google3 happy since it prohibits RTTI. 68 template<typename To, typename From> implicit_cast(From const & f)69inline To implicit_cast(From const &f) { 70 return f; 71 } 72 73 template<typename To, typename From> // use like this: down_cast<T*>(foo); down_cast(From * f)74inline To down_cast(From* f) { // so we only accept pointers 75 // Ensures that To is a sub-type of From *. This test is here only 76 // for compile-time type checking, and has no overhead in an 77 // optimized build at run-time, as it will be optimized away 78 // completely. 79 #if defined (_MSC_VER) 80 #pragma warning(push) 81 #pragma warning(disable:4127) // disable "conditional expression is constant" 82 #endif 83 if (false) { 84 implicit_cast<From*, To>(0); 85 } 86 #if defined (_MSC_VER) 87 #pragma warning(pop) 88 #endif 89 90 // The following code is the only place for RTTI. It is done so to allow 91 // additional type checking when SFNTLY_TYPE_VERIFICATION is defined. 92 #if defined (SFNTLY_TYPE_VERIFICATION) 93 assert(f == NULL || dynamic_cast<To>(f) != NULL); 94 #endif 95 return static_cast<To>(f); 96 } 97 98 #if !defined(WIN32) 99 #define UNREFERENCED_PARAMETER(p) do { (void)p; } while (0) 100 #endif 101 102 #endif // SFNTLY_CPP_SRC_SFNTLY_PORT_TYPE_H_ 103