src/output_stream.cc

// Copyright 2025 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "output_stream.h"

#include "util.h"

OutputStream& OutputStream::Format(const char* fmt, ...) {
  va_list args;
  va_start(args, fmt);
  FormatArgs(fmt, args);
  va_end(args);
  return *this;
}

OutputStream& OutputStream::FormatArgs(const char* fmt, va_list args) {
  std::string str = StringFormat(fmt, args);
  Write(str.c_str(), str.size());
  return *this;
}

OutputStream& OutputStream::operator<<(bool value) {
  if (value)
    Write("true", 4u);
  else
    Write("false", 5u);
  return *this;
}

OutputStream& OutputStream::operator<<(char value) {
  Write(&value, 1u);
  return *this;
}

OutputStream& OutputStream::operator<<(int value) {
  char buffer[16];
  int len = snprintf(buffer, sizeof(buffer), "%d", value);
  if (len > 0)
    Write(buffer, static_cast<size_t>(len));
  return *this;
}

OutputStream& OutputStream::operator<<(long value) {
  char buffer[32];
  int len = snprintf(buffer, sizeof(buffer), "%ld", value);
  if (len > 0)
    Write(buffer, static_cast<size_t>(len));
  return *this;
}

OutputStream& OutputStream::operator<<(long long value) {
  char buffer[32];
  int len = snprintf(buffer, sizeof(buffer), "%lld", value);
  if (len > 0)
    Write(buffer, static_cast<size_t>(len));
  return *this;
}

OutputStream& OutputStream::operator<<(unsigned value) {
  char buffer[16];
  int len = snprintf(buffer, sizeof(buffer), "%u", value);
  if (len > 0)
    Write(buffer, static_cast<size_t>(len));
  return *this;
}

OutputStream& OutputStream::operator<<(unsigned long value) {
  char buffer[32];
  int len = snprintf(buffer, sizeof(buffer), "%lu", value);
  if (len > 0)
    Write(buffer, static_cast<size_t>(len));
  return *this;
}

OutputStream& OutputStream::operator<<(unsigned long long value) {
  char buffer[32];
  int len = snprintf(buffer, sizeof(buffer), "%llu", value);
  if (len > 0)
    Write(buffer, static_cast<size_t>(len));
  return *this;
}

OutputStream& OutputStream::operator<<(double value) {
  char buffer[32];
  int len = snprintf(buffer, sizeof(buffer), "%g", value);
  if (len > 0)
    Write(buffer, static_cast<size_t>(len));
  return *this;
}

OutputStream& OutputStream::operator<<(const void* value) {
  char buffer[32];
  int len = snprintf(buffer, sizeof(buffer), "%p", value);
  if (len > 0)
    Write(buffer, static_cast<size_t>(len));
  return *this;
}