Add cv::String class

cmake/OpenCVModule.cmake

@@ -507,6 +507,8 @@ macro(ocv_create_module)
     )
   endif()
 
+  set_target_properties(${the_module} PROPERTIES COMPILE_DEFINITIONS OPENCV_NOSTL)
+
   if(BUILD_SHARED_LIBS)
     if(MSVC)
       set_target_properties(${the_module} PROPERTIES DEFINE_SYMBOL CVAPI_EXPORTS)

modules/core/include/opencv2/core.hpp

@@ -47,11 +47,12 @@
 #define __OPENCV_CORE_HPP__
 
 #include "opencv2/core/cvdef.h"
+#include "opencv2/core/version.hpp"
 
 #include "opencv2/core/types_c.h"
-#include "opencv2/core/version.hpp"
 
 #ifdef __cplusplus
+#include "opencv2/core/cvstd.hpp"
 
 #ifndef SKIP_INCLUDES
 #include <limits.h>
@@ -3939,7 +3940,10 @@ public:
     //! returns the node content as double
     operator double() const;
     //! returns the node content as text string
+    operator String() const;
+#ifndef OPENCV_NOSTL
     operator std::string() const;
+#endif
 
     //! returns pointer to the underlying file node
     CvFileNode* operator *();
@@ -4419,9 +4423,11 @@ template<> struct ParamType<uchar>
 
 } //namespace cv
 
-#endif // __cplusplus
-
 #include "opencv2/core/operations.hpp"
 #include "opencv2/core/mat.hpp"
 
+#include "opencv2/core/cvstd.inl.hpp"
+#endif // __cplusplus
+
+
 #endif /*__OPENCV_CORE_HPP__*/

modules/core/include/opencv2/core/cvstd.hpp

@@ -0,0 +1,470 @@
+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                          License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Copyright (C) 2013, OpenCV Foundation, all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#ifndef __OPENCV_CORE_CVSTD_HPP__
+#define __OPENCV_CORE_CVSTD_HPP__
+
+#include <cstddef>
+#include <cstring>
+
+#include "opencv2/core/cvdef.h"
+
+#ifndef OPENCV_NOSTL
+#  include <string>
+#endif
+
+// import useful primitives from stl
+#ifndef OPENCV_NOSTL_TRANSITIONAL
+#  include <algorithm>
+#  include <utility>
+#  include <cmath>
+
+namespace cv
+{
+    using std::min;
+    using std::max;
+    using std::abs;
+    using std::swap;
+}
+
+#else
+namespace cv
+{
+    template<typename T> inline T min(T a, T b) { return a < b ? a : b; }
+    template<typename T> inline T max(T a, T b) { return a > b ? a : b; }
+    template<typename T> inline T abs(T a) { return a < 0 ? -a : a; }
+    template<typename T> inline void swap(T& a, T& b) { T tmp = a; a = b; b = tmp; }
+
+    template<> inline uchar abs(uchar a) { return a; }
+    template<> inline ushort abs(ushort a) { return a; }
+    template<> inline uint abs(uint a) { return a; }
+    template<> inline uint64 abs(uint64 a) { return a; }
+}
+#endif
+
+namespace cv {
+
+class CV_EXPORTS FileNode; //for string constructor from FileNode
+
+class CV_EXPORTS String
+{
+public:
+    typedef char value_type;
+    typedef char& reference;
+    typedef const char& const_reference;
+    typedef char* pointer;
+    typedef const char* const_pointer;
+    typedef ptrdiff_t difference_type;
+    typedef size_t size_type;
+
+    typedef char* iterator;
+    typedef const char* const_iterator;
+
+    static const size_t npos = size_t(-1);
+
+    explicit String() : cstr_(0), len_(0) {}
+
+    String(const String& str) : cstr_(str.cstr_), len_(str.len_)
+    {
+        if (cstr_) CV_XADD(((int*)cstr_)-1, 1);
+    }
+
+    String(const String& str, size_t pos, size_t len = npos) : cstr_(0), len_(0)
+    {
+        pos = min(pos, str.len_);
+        len = min(str.len_ - pos, len);
+        if (!len) return;
+        if (len == str.len_)
+        {
+            CV_XADD(((int*)str.cstr_)-1, 1);
+            cstr_ = str.cstr_;
+            len_ = str.len_;
+            return;
+        }
+        memcpy(allocate(len), str.cstr_ + pos, len);
+    }
+
+    String(const char* s): cstr_(0), len_(0)
+    {
+        if (!s) return;
+        size_t len = strlen(s);
+        memcpy(allocate(len), s, len);
+    }
+
+    String(const char* s, size_t n): cstr_(0), len_(0)
+    {
+        if (!n) return;
+        memcpy(allocate(n), s, n);
+    }
+
+    String(size_t n, char c): cstr_(0), len_(0)
+    {
+        memset(allocate(n), c, n);
+    }
+
+    String(const char* first, const char* last): cstr_(0), len_(0)
+    {
+        size_t len = (size_t)(last - first);
+        memcpy(allocate(len), first, len);
+    }
+
+    template<typename Iterator>
+    String(Iterator first, Iterator last): cstr_(0), len_(0)
+    {
+        size_t len = (size_t)(last - first);
+        char* str = allocate(len);
+        while (first != last)
+        {
+            *str++ = *first;
+            ++first;
+        }
+    }
+
+    ~String() { deallocate(); }
+
+    String& operator=(const String& str)
+    {
+        deallocate();
+        if (str.cstr_) CV_XADD(((int*)str.cstr_)-1, 1);
+        cstr_ = str.cstr_;
+        len_ = str.len_;
+        return *this;
+    }
+
+    String& operator=(const char* s)
+    {
+        deallocate();
+        if (!s) return *this;
+        size_t len = strlen(s);
+        memcpy(allocate(len), s, len);
+        return *this;
+    }
+
+    String& operator=(char c)
+    {
+        deallocate();
+        allocate(1)[0] = c;
+        return *this;
+    }
+
+    size_t size() const { return len_; }
+    size_t length() const { return len_; }
+
+    char operator[](size_t idx) const { return cstr_[idx]; }
+    char operator[](int idx) const    { return cstr_[idx]; }
+
+    const char* begin() const { return cstr_; }
+    const char* end() const { return len_ ? cstr_ + 1 : 0; }
+
+    bool empty() const { return len_ == 0; }
+
+    const char* c_str() const { return cstr_ ? cstr_ : ""; }
+
+    void swap(String& str)
+    {
+        cv::swap(cstr_, str.cstr_);
+        cv::swap(len_, str.len_);
+    }
+
+    void clear() { deallocate(); }
+
+    int compare(const char* s) const
+    {
+        if (cstr_ == s) return 0;
+
+        return strcmp(c_str(), s);
+    }
+
+    int compare(const String& str) const
+    {
+        if (cstr_ == str.cstr_) return 0;
+
+        return strcmp(c_str(), str.c_str());
+    }
+
+    String substr(size_t pos = 0, size_t len = npos) const
+    {
+        return String(*this, pos, len);
+    }
+
+    size_t find(const char* s, size_t pos, size_t n) const
+    {
+        if (n == 0 || pos + n > len_) return npos;
+        const char* lmax = cstr_ + len_ - n;
+        for (const char* i = cstr_ + pos; i <= lmax; ++i)
+        {
+            size_t j = 0;
+            while (j < n && s[j] == i[j]) ++j;
+            if (j == n) return (size_t)(i - cstr_);
+        }
+        return npos;
+    }
+
+    size_t find(char c, size_t pos = 0) const
+    {
+        return find(&c, pos, 1);
+    }
+
+    size_t find(const String& str, size_t pos = 0) const
+    {
+        return find(str.c_str(), pos, str.len_);
+    }
+
+    size_t find(const char* s, size_t pos = 0) const
+    {
+        if (pos >= len_ || !s[0]) return npos;
+        const char* lmax = cstr_ + len_;
+        for (const char* i = cstr_ + pos; i < lmax; ++i)
+        {
+            size_t j = 0;
+            while (s[j] && s[j] == i[j])
+            {   if(i + j >= lmax) return npos;
+                ++j;
+            }
+            if (!s[j]) return (size_t)(i - cstr_);
+        }
+        return npos;
+    }
+
+    size_t rfind(const char* s, size_t pos, size_t n) const
+    {
+        if (n > len_) return npos;
+        if (pos > len_ - n) pos = len_ - n;
+        for (const char* i = cstr_ + pos; i >= cstr_; --i)
+        {
+            size_t j = 0;
+            while (j < n && s[j] == i[j]) ++j;
+            if (j == n) return (size_t)(i - cstr_);
+        }
+        return npos;
+    }
+
+    size_t rfind(char c, size_t pos = npos) const
+    {
+        return rfind(&c, pos, 1);
+    }
+
+    size_t rfind(const String& str, size_t pos = npos) const
+    {
+        return rfind(str.c_str(), pos, str.len_);
+    }
+
+    size_t rfind(const char* s, size_t pos = npos) const
+    {
+        return rfind(s, pos, strlen(s));
+    }
+
+    size_t find_first_of(const char* s, size_t pos, size_t n) const
+    {
+        if (n == 0 || pos + n > len_) return npos;
+        const char* lmax = cstr_ + len_;
+        for (const char* i = cstr_ + pos; i < lmax; ++i)
+        {
+            for (size_t j = 0; j < n; ++j)
+                if (s[j] == *i)
+                    return (size_t)(i - cstr_);
+        }
+        return npos;
+    }
+
+    size_t find_first_of(char c, size_t pos = 0) const
+    {
+        return find_first_of(&c, pos, 1);
+    }
+
+    size_t find_first_of(const String& str, size_t pos = 0) const
+    {
+        return find_first_of(str.c_str(), pos, str.len_);
+    }
+
+    size_t find_first_of(const char* s, size_t pos = 0) const
+    {
+        if (pos >= len_ || !s[0]) return npos;
+        const char* lmax = cstr_ + len_;
+        for (const char* i = cstr_ + pos; i < lmax; ++i)
+        {
+            for (size_t j = 0; s[j]; ++j)
+                if (s[j] == *i)
+                    return (size_t)(i - cstr_);
+        }
+        return npos;
+    }
+
+    size_t find_last_of(const char* s, size_t pos, size_t n) const
+    {
+        if (pos >= len_) pos = len_ - 1;
+        for (const char* i = cstr_ + pos; i >= cstr_; --i)
+        {
+            for (size_t j = 0; j < n; ++j)
+                if (s[j] == *i)
+                    return (size_t)(i - cstr_);
+        }
+        return npos;
+    }
+
+    size_t find_last_of(char c, size_t pos = npos) const
+    {
+        return find_last_of(&c, pos, 1);
+    }
+
+    size_t find_last_of(const String& str, size_t pos = npos) const
+    {
+        return find_last_of(str.c_str(), pos, str.len_);
+    }
+
+    size_t find_last_of(const char* s, size_t pos = npos) const
+    {
+        if (pos >= len_) pos = len_ - 1;
+        for (const char* i = cstr_ + pos; i >= cstr_; --i)
+        {
+            for (size_t j = 0; s[j]; ++j)
+                if (s[j] == *i)
+                    return (size_t)(i - cstr_);
+        }
+        return npos;
+    }
+
+    friend String operator+ (const String& lhs, const String& rhs);
+    friend String operator+ (const String& lhs, const char*   rhs);
+    friend String operator+ (const char*   lhs, const String& rhs);
+    friend String operator+ (const String& lhs, char          rhs);
+    friend String operator+ (char          lhs, const String& rhs);
+
+#ifndef OPENCV_NOSTL
+    String(const std::string& str);
+    String(const std::string& str, size_t pos, size_t len = npos);
+    String& operator=(const std::string& str);
+    operator std::string() const;
+
+    friend String operator+ (const String& lhs, const std::string& rhs);
+    friend String operator+ (const std::string& lhs, const String& rhs);
+#endif
+
+    explicit String(const FileNode& fn);
+
+private:
+    char*  cstr_;
+    size_t len_;
+
+    char* allocate(size_t len); // len_ without trailing 0
+    void deallocate();
+};
+
+inline String operator+ (const String& lhs, const String& rhs)
+{
+    String s;
+    s.allocate(lhs.len_ + rhs.len_);
+    memcpy(s.cstr_, lhs.cstr_, lhs.len_);
+    memcpy(s.cstr_ + lhs.len_, rhs.cstr_, rhs.len_);
+    return s;
+}
+
+inline String operator+ (const String& lhs, const char* rhs)
+{
+    String s;
+    size_t rhslen = strlen(rhs);
+    s.allocate(lhs.len_ + rhslen);
+    memcpy(s.cstr_, lhs.cstr_, lhs.len_);
+    memcpy(s.cstr_ + lhs.len_, rhs, rhslen);
+    return s;
+}
+
+inline String operator+ (const char* lhs, const String& rhs)
+{
+    String s;
+    size_t lhslen = strlen(lhs);
+    s.allocate(lhslen + rhs.len_);
+    memcpy(s.cstr_, lhs, lhslen);
+    memcpy(s.cstr_ + lhslen, rhs.cstr_, rhs.len_);
+    return s;
+}
+
+inline String operator+ (const String& lhs, char rhs)
+{
+    String s;
+    s.allocate(lhs.len_ + 1);
+    memcpy(s.cstr_, lhs.cstr_, lhs.len_);
+    s.cstr_[lhs.len_] = rhs;
+    return s;
+}
+
+inline String operator+ (char lhs, const String& rhs)
+{
+    String s;
+    s.allocate(rhs.len_ + 1);
+    s.cstr_[0] = lhs;
+    memcpy(s.cstr_ + 1, rhs.cstr_, rhs.len_);
+    return s;
+}
+
+inline bool operator== (const String& lhs, const String& rhs) { return 0 == lhs.compare(rhs); }
+inline bool operator== (const char*   lhs, const String& rhs) { return 0 == rhs.compare(lhs); }
+inline bool operator== (const String& lhs, const char*   rhs) { return 0 == lhs.compare(rhs); }
+inline bool operator!= (const String& lhs, const String& rhs) { return 0 != lhs.compare(rhs); }
+inline bool operator!= (const char*   lhs, const String& rhs) { return 0 != rhs.compare(lhs); }
+inline bool operator!= (const String& lhs, const char*   rhs) { return 0 != lhs.compare(rhs); }
+inline bool operator<  (const String& lhs, const String& rhs) { return lhs.compare(rhs) <  0; }
+inline bool operator<  (const char*   lhs, const String& rhs) { return rhs.compare(lhs) >  0; }
+inline bool operator<  (const String& lhs, const char*   rhs) { return lhs.compare(rhs) <  0; }
+inline bool operator<= (const String& lhs, const String& rhs) { return lhs.compare(rhs) <= 0; }
+inline bool operator<= (const char*   lhs, const String& rhs) { return rhs.compare(lhs) >= 0; }
+inline bool operator<= (const String& lhs, const char*   rhs) { return lhs.compare(rhs) <= 0; }
+inline bool operator>  (const String& lhs, const String& rhs) { return lhs.compare(rhs) >  0; }
+inline bool operator>  (const char*   lhs, const String& rhs) { return rhs.compare(lhs) <  0; }
+inline bool operator>  (const String& lhs, const char*   rhs) { return lhs.compare(rhs) >  0; }
+inline bool operator>= (const String& lhs, const String& rhs) { return lhs.compare(rhs) >= 0; }
+inline bool operator>= (const char*   lhs, const String& rhs) { return rhs.compare(lhs) <= 0; }
+inline bool operator>= (const String& lhs, const char*   rhs) { return lhs.compare(rhs) >= 0; }
+
+} // cv
+
+#ifndef OPENCV_NOSTL_TRANSITIONAL
+namespace std
+#else
+namespace cv
+#endif
+{
+    template<> inline void swap<cv::String>(cv::String& a, cv::String& b) { a.swap(b); }
+}
+
+#endif //__OPENCV_CORE_CVSTD_HPP__

modules/core/include/opencv2/core/cvstd.inl.hpp

@@ -0,0 +1,131 @@
+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                          License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Copyright (C) 2013, OpenCV Foundation, all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#ifndef __OPENCV_CORE_CVSTDINL_HPP__
+#define __OPENCV_CORE_CVSTDINL_HPP__
+
+#ifndef OPENCV_NOSTL
+#  include <ostream>
+#endif
+
+namespace cv
+{
+#ifndef OPENCV_NOSTL
+
+inline String::String(const std::string& str) : cstr_(0), len_(0)
+{
+    if (!str.empty())
+    {
+        size_t len = str.size();
+        memcpy(allocate(len), str.c_str(), len);
+    }
+}
+
+inline String::String(const std::string& str, size_t pos, size_t len) : cstr_(0), len_(0)
+{
+    size_t strlen = str.size();
+    pos = max(pos, strlen);
+    len = min(strlen - pos, len);
+    if (!len) return;
+    memcpy(allocate(len), str.c_str() + pos, len);
+}
+
+inline String& String::operator=(const std::string& str)
+{
+    deallocate();
+    if (!str.empty())
+    {
+        size_t len = str.size();
+        memcpy(allocate(len), str.c_str(), len);
+    }
+    return *this;
+}
+
+inline String::operator std::string() const
+{
+    return std::string(cstr_, len_);
+}
+
+inline String operator+ (const String& lhs, const std::string& rhs)
+{
+    String s;
+    size_t rhslen = rhs.size();
+    s.allocate(lhs.len_ + rhslen);
+    memcpy(s.cstr_, lhs.cstr_, lhs.len_);
+    memcpy(s.cstr_ + lhs.len_, rhs.c_str(), rhslen);
+    return s;
+}
+
+inline String operator+ (const std::string& lhs, const String& rhs)
+{
+    String s;
+    size_t lhslen = lhs.size();
+    s.allocate(lhslen + rhs.len_);
+    memcpy(s.cstr_, lhs.c_str(), lhslen);
+    memcpy(s.cstr_ + lhslen, rhs.cstr_, rhs.len_);
+    return s;
+}
+
+inline std::ostream& operator << (std::ostream& os, const String& str)
+{
+    return os << str.c_str();
+}
+
+inline FileNode::operator std::string() const
+{
+    cv::String value;
+    read(*this, value, value);
+    return value;
+}
+
+template<> inline void operator >> (const FileNode& n, std::string& value)
+{
+    cv::String val;
+    read(n, val, val);
+    value = val;
+}
+
+#endif // OPENCV_NOSTL
+} // cv
+
+#endif // __OPENCV_CORE_CVSTDINL_HPP__

modules/core/include/opencv2/core/operations.hpp

@@ -2902,9 +2902,9 @@ static inline void read(const FileNode& node, double& value, double default_valu
         CV_NODE_IS_REAL(node.node->tag) ? node.node->data.f : 1e300;
 }
 
-static inline void read(const FileNode& node, std::string& value, const std::string& default_value)
+static inline void read(const FileNode& node, cv::String& value, const cv::String& default_value)
 {
-    value = !node.node ? default_value : CV_NODE_IS_STRING(node.node->tag) ? std::string(node.node->data.str.ptr) : std::string("");
+    value = !node.node ? default_value : CV_NODE_IS_STRING(node.node->tag) ? cv::String(node.node->data.str.ptr) : cv::String();
 }
 
 CV_EXPORTS_W void read(const FileNode& node, Mat& mat, const Mat& default_mat=Mat() );
@@ -2935,7 +2935,12 @@ inline FileNode::operator std::string() const
     return value;
 }
 
-inline void FileNode::readRaw( const std::string& fmt, uchar* vec, size_t len ) const
+inline String::String(const FileNode& fn): cstr_(0), len_(0)
+{
+    read(fn, *this, *this);
+}
+
+inline void FileNode::readRaw( const cv::String& fmt, uchar* vec, size_t len ) const
 {
     begin().readRaw( fmt, vec, len );
 }

modules/core/include/opencv2/core/utility.hpp

@@ -143,14 +143,14 @@ typedef int (CV_CDECL *ErrorCallback)( int status, const char* func_name,
 */
 CV_EXPORTS ErrorCallback redirectError( ErrorCallback errCallback, void* userdata=0, void** prevUserdata=0);
 
-CV_EXPORTS std::string format( const char* fmt, ... );
+CV_EXPORTS cv::String format( const char* fmt, ... );
-CV_EXPORTS std::string tempfile( const char* suffix CV_DEFAULT(0));
+CV_EXPORTS cv::String tempfile( const char* suffix CV_DEFAULT(0));
-CV_EXPORTS void glob(std::string pattern, std::vector<std::string>& result, bool recursive = false);
+CV_EXPORTS void glob(cv::String pattern, std::vector<cv::String>& result, bool recursive = false);
 CV_EXPORTS void setNumThreads(int nthreads);
 CV_EXPORTS int getNumThreads();
 CV_EXPORTS int getThreadNum();
 
-CV_EXPORTS_W const std::string& getBuildInformation();
+CV_EXPORTS_W const cv::String& getBuildInformation();
 
 //! Returns the number of ticks.
 
@@ -297,19 +297,19 @@ protected:
 class CV_EXPORTS CommandLineParser
 {
     public:
-    CommandLineParser(int argc, const char* const argv[], const std::string& keys);
+    CommandLineParser(int argc, const char* const argv[], const cv::String& keys);
     CommandLineParser(const CommandLineParser& parser);
     CommandLineParser& operator = (const CommandLineParser& parser);
 
-    std::string getPathToApplication() const;
+    cv::String getPathToApplication() const;
 
     template <typename T>
-    T get(const std::string& name, bool space_delete = true) const
+    T get(const cv::String& name, bool space_delete = true) const
-        {
+    {
         T val = T();
         getByName(name, space_delete, ParamType<T>::type, (void*)&val);
         return val;
-        }
+    }
 
     template <typename T>
     T get(int index, bool space_delete = true) const
@@ -319,17 +319,17 @@ class CV_EXPORTS CommandLineParser
         return val;
     }
 
-    bool has(const std::string& name) const;
+    bool has(const cv::String& name) const;
 
     bool check() const;
 
-    void about(const std::string& message);
+    void about(const cv::String& message);
 
     void printMessage() const;
     void printErrors() const;
 
 protected:
-    void getByName(const std::string& name, bool space_delete, int type, void* dst) const;
+    void getByName(const cv::String& name, bool space_delete, int type, void* dst) const;
     void getByIndex(int index, bool space_delete, int type, void* dst) const;
 
     struct Impl;
@@ -454,6 +454,17 @@ static inline Mat cvarrToMatND(const CvArr* arr, bool copyData=false, int coiMod
     return cvarrToMat(arr, copyData, true, coiMode);
 }
 
+#ifndef OPENCV_NOSTL
+template<> inline std::string CommandLineParser::get<std::string>(int index, bool space_delete) const
+{
+    return get<String>(index, space_delete);
+}
+template<> inline std::string CommandLineParser::get<std::string>(const cv::String& name, bool space_delete) const
+{
+    return get<String>(name, space_delete);
+}
+#endif // OPENCV_NOSTL
+
 } //namespace cv
 
 #endif //__OPENCV_CORE_UTILITY_H__

modules/core/src/stl.cpp

@@ -0,0 +1,69 @@
+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                          License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Copyright (C) 2013, OpenCV Foundation, all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+
+#include "precomp.hpp"
+
+char* cv::String::allocate(size_t len)
+{
+    size_t totalsize = alignSize(len + 1, (int)sizeof(int));
+    int* data = (int*)cv::fastMalloc(totalsize + sizeof(int));
+    data[0] = 1;
+    cstr_ = (char*)(data + 1);
+    len_ = len;
+    cstr_[len] = 0;
+    return cstr_;
+}
+
+
+void cv::String::deallocate()
+{
+    int* data = (int*)cstr_;
+    len_ = 0;
+    cstr_ = 0;
+
+    if(data && 1 == CV_XADD(data-1, -1))
+    {
+        cv::fastFree(data-1);
+    }
+}