15 #ifndef RAPIDJSON_STRINGBUFFER_H_ 16 #define RAPIDJSON_STRINGBUFFER_H_ 19 #include "internal/stack.h" 21 #if RAPIDJSON_HAS_CXX11_RVALUE_REFS 25 #include "internal/stack.h" 27 #if defined(__clang__) 29 RAPIDJSON_DIAG_OFF(c++98-compat)
32 RAPIDJSON_NAMESPACE_BEGIN
40 template <
typename Encoding,
typename Allocator = CrtAllocator>
41 class GenericStringBuffer {
43 typedef typename Encoding::Ch Ch;
45 GenericStringBuffer(Allocator* allocator = 0,
size_t capacity = kDefaultCapacity) : stack_(allocator, capacity) {}
47 #if RAPIDJSON_HAS_CXX11_RVALUE_REFS 48 GenericStringBuffer(GenericStringBuffer&& rhs) : stack_(std::move(rhs.stack_)) {}
49 GenericStringBuffer& operator=(GenericStringBuffer&& rhs) {
51 stack_ = std::move(rhs.stack_);
56 void Put(Ch c) { *stack_.template Push<Ch>() = c; }
57 void PutUnsafe(Ch c) { *stack_.template PushUnsafe<Ch>() = c; }
60 void Clear() { stack_.Clear(); }
63 *stack_.template Push<Ch>() =
'\0';
65 stack_.template Pop<Ch>(1);
68 void Reserve(
size_t count) { stack_.template Reserve<Ch>(count); }
69 Ch* Push(
size_t count) {
return stack_.template Push<Ch>(count); }
70 Ch* PushUnsafe(
size_t count) {
return stack_.template PushUnsafe<Ch>(count); }
71 void Pop(
size_t count) { stack_.template Pop<Ch>(count); }
73 const Ch* GetString()
const {
75 *stack_.template Push<Ch>() =
'\0';
76 stack_.template Pop<Ch>(1);
78 return stack_.template Bottom<Ch>();
81 size_t GetSize()
const {
return stack_.GetSize(); }
83 static const size_t kDefaultCapacity = 256;
84 mutable internal::Stack<Allocator> stack_;
88 GenericStringBuffer(
const GenericStringBuffer&);
89 GenericStringBuffer& operator=(
const GenericStringBuffer&);
95 template<
typename Encoding,
typename Allocator>
96 inline void PutReserve(GenericStringBuffer<Encoding, Allocator>& stream,
size_t count) {
97 stream.Reserve(count);
100 template<
typename Encoding,
typename Allocator>
101 inline void PutUnsafe(GenericStringBuffer<Encoding, Allocator>& stream,
typename Encoding::Ch c) {
108 std::memset(stream.stack_.Push<
char>(n), c, n *
sizeof(c));
111 RAPIDJSON_NAMESPACE_END
113 #if defined(__clang__) 117 #endif // RAPIDJSON_STRINGBUFFER_H_ void PutReserve(Stream &stream, size_t count)
Reserve n characters for writing to a stream.
Definition: stream.h:84
Represents an in-memory output stream.
Definition: fwd.h:59
GenericStringBuffer< UTF8< char >, CrtAllocator > StringBuffer
String buffer with UTF8 encoding.
Definition: fwd.h:59
void PutN(FileWriteStream &stream, char c, size_t n)
Implement specialized version of PutN() with memset() for better performance.
Definition: filewritestream.h:94
UTF-8 encoding.
Definition: encodings.h:96
void PutUnsafe(Stream &stream, typename Stream::Ch c)
Write character to a stream, presuming buffer is reserved.
Definition: stream.h:91