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      1 /*
      2  * Copyright (C) 2004, 2008, 2010 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "TextStream.h"
     28 
     29 #include "PlatformString.h"
     30 #include <wtf/StringExtras.h>
     31 
     32 using namespace std;
     33 
     34 namespace WebCore {
     35 
     36 static const size_t printBufferSize = 100; // large enough for any integer or floating point value in string format, including trailing null character
     37 
     38 TextStream& TextStream::operator<<(bool b)
     39 {
     40     return *this << (b ? "1" : "0");
     41 }
     42 
     43 TextStream& TextStream::operator<<(int i)
     44 {
     45     char buffer[printBufferSize];
     46     snprintf(buffer, sizeof(buffer) - 1, "%d", i);
     47     return *this << buffer;
     48 }
     49 
     50 TextStream& TextStream::operator<<(unsigned i)
     51 {
     52     char buffer[printBufferSize];
     53     snprintf(buffer, sizeof(buffer) - 1, "%u", i);
     54     return *this << buffer;
     55 }
     56 
     57 TextStream& TextStream::operator<<(long i)
     58 {
     59     char buffer[printBufferSize];
     60     snprintf(buffer, sizeof(buffer) - 1, "%ld", i);
     61     return *this << buffer;
     62 }
     63 
     64 TextStream& TextStream::operator<<(unsigned long i)
     65 {
     66     char buffer[printBufferSize];
     67     snprintf(buffer, sizeof(buffer) - 1, "%lu", i);
     68     return *this << buffer;
     69 }
     70 
     71 TextStream& TextStream::operator<<(float f)
     72 {
     73     char buffer[printBufferSize];
     74     snprintf(buffer, sizeof(buffer) - 1, "%.2f", f);
     75     return *this << buffer;
     76 }
     77 
     78 TextStream& TextStream::operator<<(double d)
     79 {
     80     char buffer[printBufferSize];
     81     snprintf(buffer, sizeof(buffer) - 1, "%.2f", d);
     82     return *this << buffer;
     83 }
     84 
     85 TextStream& TextStream::operator<<(const char* string)
     86 {
     87     size_t stringLength = strlen(string);
     88     size_t textLength = m_text.size();
     89     if (stringLength > numeric_limits<size_t>::max() - textLength)
     90         CRASH();
     91     m_text.grow(textLength + stringLength);
     92     for (size_t i = 0; i < stringLength; ++i)
     93         m_text[textLength + i] = string[i];
     94     return *this;
     95 }
     96 
     97 TextStream& TextStream::operator<<(const void* p)
     98 {
     99     char buffer[printBufferSize];
    100     snprintf(buffer, sizeof(buffer) - 1, "%p", p);
    101     return *this << buffer;
    102 }
    103 
    104 TextStream& TextStream::operator<<(const String& string)
    105 {
    106     append(m_text, string);
    107     return *this;
    108 }
    109 
    110 String TextStream::release()
    111 {
    112     return String::adopt(m_text);
    113 }
    114 
    115 #if OS(WINDOWS) && CPU(X86_64)
    116 TextStream& TextStream::operator<<(__int64 i)
    117 {
    118     char buffer[printBufferSize];
    119     snprintf(buffer, sizeof(buffer) - 1, "%I64i", i);
    120     return *this << buffer;
    121 }
    122 TextStream& TextStream::operator<<(unsigned __int64 i)
    123 {
    124     char buffer[printBufferSize];
    125     snprintf(buffer, sizeof(buffer) - 1, "%I64u", i);
    126     return *this << buffer;
    127 }
    128 #endif
    129 
    130 }
    131