#ifndef RAPIDJSON_FILESTREAM_H_
#define RAPIDJSON_FILESTREAM_H_

#include <cstdio>

namespace rapidjson {

//! Wrapper of C file stream for input or output.
/*!
 This simple wrapper does not check the validity of the stream.
 \implements Stream
*/
class FileStream {
public:
 typedef char Ch; //!< Character type. Only support char.

 FileStream(FILE* fp) : fp_(fp), count_(0) { Read(); }
 char Peek() const { return current_; }
 char Take() { char c = current_; Read(); return c; }
 size_t Tell() const { return count_; }
 void Put(char c) { fputc(c, fp_); }

 // Not implemented
 char* PutBegin() { return 0; }
 size_t PutEnd(char*) { return 0; }

private:
 void Read() {
  RAPIDJSON_ASSERT(fp_ != 0);
  int c = fgetc(fp_);
  if (c != EOF) {
   current_ = (char)c;
   count_++;
  }
  else
   current_ = '\0';
 }

 FILE* fp_;
 char current_;
 size_t count_;
};

} // namespace rapidjson

#endif // RAPIDJSON_FILESTREAM_H_
