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      1 /*
      2 www.sourceforge.net/projects/tinyxml
      3 
      4 This software is provided 'as-is', without any express or implied
      5 warranty. In no event will the authors be held liable for any
      6 damages arising from the use of this software.
      7 
      8 Permission is granted to anyone to use this software for any
      9 purpose, including commercial applications, and to alter it and
     10 redistribute it freely, subject to the following restrictions:
     11 
     12 1. The origin of this software must not be misrepresented; you must
     13 not claim that you wrote the original software. If you use this
     14 software in a product, an acknowledgment in the product documentation
     15 would be appreciated but is not required.
     16 
     17 2. Altered source versions must be plainly marked as such, and
     18 must not be misrepresented as being the original software.
     19 
     20 3. This notice may not be removed or altered from any source
     21 distribution.
     22 */
     23 
     24 
     25 #ifndef TIXML_USE_STL
     26 
     27 #include "tinystr.h"
     28 
     29 // Error value for find primitive
     30 const TiXmlString::size_type TiXmlString::npos = static_cast< TiXmlString::size_type >(-1);
     31 
     32 
     33 // Null rep.
     34 TiXmlString::Rep TiXmlString::nullrep_ = { 0, 0, { '\0' } };
     35 
     36 
     37 void TiXmlString::reserve (size_type cap)
     38 {
     39 	if (cap > capacity())
     40 	{
     41 		TiXmlString tmp;
     42 		tmp.init(length(), cap);
     43 		memcpy(tmp.start(), data(), length());
     44 		swap(tmp);
     45 	}
     46 }
     47 
     48 
     49 TiXmlString& TiXmlString::assign(const char* str, size_type len)
     50 {
     51 	size_type cap = capacity();
     52 	if (len > cap || cap > 3*(len + 8))
     53 	{
     54 		TiXmlString tmp;
     55 		tmp.init(len);
     56 		memcpy(tmp.start(), str, len);
     57 		swap(tmp);
     58 	}
     59 	else
     60 	{
     61 		memmove(start(), str, len);
     62 		set_size(len);
     63 	}
     64 	return *this;
     65 }
     66 
     67 
     68 TiXmlString& TiXmlString::append(const char* str, size_type len)
     69 {
     70 	size_type newsize = length() + len;
     71 	if (newsize > capacity())
     72 	{
     73 		reserve (newsize + capacity());
     74 	}
     75 	memmove(finish(), str, len);
     76 	set_size(newsize);
     77 	return *this;
     78 }
     79 
     80 
     81 TiXmlString operator + (const TiXmlString & a, const TiXmlString & b)
     82 {
     83 	TiXmlString tmp;
     84 	tmp.reserve(a.length() + b.length());
     85 	tmp += a;
     86 	tmp += b;
     87 	return tmp;
     88 }
     89 
     90 TiXmlString operator + (const TiXmlString & a, const char* b)
     91 {
     92 	TiXmlString tmp;
     93 	TiXmlString::size_type b_len = static_cast<TiXmlString::size_type>( strlen(b) );
     94 	tmp.reserve(a.length() + b_len);
     95 	tmp += a;
     96 	tmp.append(b, b_len);
     97 	return tmp;
     98 }
     99 
    100 TiXmlString operator + (const char* a, const TiXmlString & b)
    101 {
    102 	TiXmlString tmp;
    103 	TiXmlString::size_type a_len = static_cast<TiXmlString::size_type>( strlen(a) );
    104 	tmp.reserve(a_len + b.length());
    105 	tmp.append(a, a_len);
    106 	tmp += b;
    107 	return tmp;
    108 }
    109 
    110 
    111 #endif	// TIXML_USE_STL
    112