/usr/include/dcmtk/oflog/helpers/strhelp.h is in libdcmtk2-dev 3.6.0-15.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 | // Module: Log4CPLUS
// File: stringhelper.h
// Created: 3/2003
// Author: Tad E. Smith
//
//
// Copyright 2003-2010 Tad E. Smith
//
// 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.
/** @file */
#ifndef LOG4CPLUS_HELPERS_STRINGHELPER_HEADER_
#define LOG4CPLUS_HELPERS_STRINGHELPER_HEADER_
#include "dcmtk/oflog/config.h"
#include "dcmtk/oflog/tstring.h"
#include "dcmtk/ofstd/oflist.h"
//#include <algorithm>
//#include <limits>
//#include <iterator>
namespace log4cplus {
namespace helpers {
/**
* Returns <code>s</code> in upper case.
*/
LOG4CPLUS_EXPORT log4cplus::tstring toUpper(const log4cplus::tstring& s);
/**
* Returns <code>s</code> in lower case.
*/
LOG4CPLUS_EXPORT log4cplus::tstring toLower(const log4cplus::tstring& s);
/**
* Tokenize <code>s</code> using <code>c</code> as the delimiter and
* put the resulting tokens in <code>_result</code>. If
* <code>collapseTokens</code> is false, multiple adjacent delimiters
* will result in zero length tokens.
*
* <b>Example:</b>
* <pre>
* string s = // Set string with '.' as delimiters
* list<log4cplus::tstring> tokens;
* tokenize(s, '.', back_insert_iterator<list<string> >(tokens));
* </pre>
*/
template <class StringType>
inline
void
tokenize(const StringType& s, typename StringType::value_type c,
OFList<StringType>& result, bool collapseTokens = true)
{
typedef typename StringType::size_type size_type;
size_type const slen = s.length();
size_type first = 0;
size_type i = 0;
for (i=0; i < slen; ++i)
{
if (s[i] == c)
{
result.push_back(StringType (s, first, i - first));
if (collapseTokens)
while (i+1 < slen && s[i+1] == c)
++i;
first = i + 1;
}
}
if (first != i)
result.push_back(StringType (s, first, i - first));
}
template <typename intType>
struct ConvertIntegerToStringHelper
{
static inline
void
step1 (tchar * & it, intType & value)
{
// This code assumes two-compliments'. The problem here is that
// integer overflow of an signed type is undefined behavior :(
// This code is based upon http://www.fefe.de/intof.html
// True if intType is unsigned
const OFBool isUnsigned = (OFstatic_cast(intType, -1) < 0) ? OFFalse : OFTrue;
// If intType is a signed type, halfMaxSigned is intType_MAX / 2
const intType halfMaxSigned = OFstatic_cast(intType, 1) << (sizeof(intType) * 8 - 2);
// if intType is a signed type, MaxSigned is its intType_MAX
const intType maxSigned = halfMaxSigned - 1 + halfMaxSigned;
// if intType is a signed type, MinSigned is its intType_MIN
const intType minSigned = OFstatic_cast(intType, -1) - maxSigned;
// This is the minimum value that intType can represent;
const intType minVal = isUnsigned ? 0 : minSigned;
//if (value == (STD_NAMESPACE numeric_limits<intType>::min) ())
if (value == minVal)
{
intType const r = value / 10;
intType const a = (0-r) * 10;
intType const mod = 0-(a + value);
value = 0-r;
*(it - 1) = OFstatic_cast(tchar, LOG4CPLUS_TEXT('0') + mod);
--it;
}
else
value = 0-value;
}
};
template<class intType>
inline
void
convertIntegerToString (tstring & str, intType value)
{
if (value == 0)
str = LOG4CPLUS_TEXT("0");
// We can't use (value < 0) because that could cause a compiler
// warning for unsigned types.
bool const negative = !(value > 0 || value == 0);
const size_t buffer_size = 30; // More than enough space, even for 64 bit integers
// = intTypeLimits::digits10 + 2;
tchar buffer[buffer_size];
tchar * it = &buffer[buffer_size];
tchar const * const buf_end = it;
if (negative)
ConvertIntegerToStringHelper<intType>::step1(it, value);
for (; value != 0; --it)
{
intType mod = value % 10;
value = value / 10;
*(it - 1) = OFstatic_cast(tchar, LOG4CPLUS_TEXT('0') + mod);
}
if (negative)
{
--it;
*it = LOG4CPLUS_TEXT('-');
}
str.assign (OFstatic_cast(tchar const *, it), buf_end - it);
}
template<class intType>
inline
tstring
convertIntegerToString (intType value)
{
tstring result;
convertIntegerToString (result, value);
return result;
}
} // namespace helpers
} // namespace log4cplus
#endif // LOG4CPLUS_HELPERS_STRINGHELPER_HEADER_
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