String16_cpp.template

// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <cstdlib>
#include <cstring>
#include <string>

namespace blink {
namespace protocol {

namespace internal {

void intToStr(int number, char* buffer, size_t length)
{
    std::snprintf(buffer, length, "%d", number);
}

void doubleToStr(double number, char* buffer, size_t length)
{
    std::snprintf(buffer, length, "%f", number);
}

void doubleToStr3(double number, char* buffer, size_t length)
{
    std::snprintf(buffer, length, "%.3g", number);
}

void doubleToStr6(double number, char* buffer, size_t length)
{
    std::snprintf(buffer, length, "%.6g", number);
}

double strToDouble(const char* buffer, bool* ok)
{
    char* endptr;
    double result = std::strtod(buffer, &endptr);
    if (ok)
        *ok = !(*endptr);
    return result;
}

int strToInt(const char* buffer, bool* ok)
{
    char* endptr;
    int result = std::strtol(buffer, &endptr, 10);
    if (ok)
        *ok = !(*endptr);
    return result;
}

} // namespace internal

String16Builder::String16Builder()
{
}

void String16Builder::append(const String16& s)
{
    m_buffer.insert(m_buffer.end(), s.characters16(), s.characters16() + s.length());
}

void String16Builder::append(UChar c)
{
    m_buffer.push_back(c);
}

void String16Builder::append(char c)
{
    UChar u = c;
    m_buffer.push_back(u);
}

void String16Builder::append(const UChar* characters, size_t length)
{
    m_buffer.insert(m_buffer.end(), characters, characters + length);
}

void String16Builder::append(const char* characters, size_t length)
{
    m_buffer.reserve(m_buffer.size() + length);
    for (size_t i = 0; i < length; ++i, ++characters) {
        UChar u = *characters;
        m_buffer.push_back(u);
    }
}

String16 String16Builder::toString()
{
    return String16(m_buffer.data(), m_buffer.size());
}

void String16Builder::reserveCapacity(size_t capacity)
{
    m_buffer.reserve(capacity);
}

} // namespace protocol
} // namespace blink