#ifndef _WX_WXSTRINGH__
#define _WX_WXSTRINGH__
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
- #pragma interface "string.h"
-#endif
-
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#endif // OS/compiler
}
-#if wxUSE_STL
+// ----------------------------------------------------------------------------
+// deal with STL/non-STL/non-STL-but-wxUSE_STD_STRING
+// ----------------------------------------------------------------------------
+
+// in both cases we need to define wxStdString
+#if wxUSE_STL || wxUSE_STD_STRING
#include "wx/beforestd.h"
#include <string>
#if wxUSE_UNICODE
#ifdef HAVE_STD_WSTRING
- typedef std::wstring wxStringBase;
+ typedef std::wstring wxStdString;
#else
- typedef std::basic_string<wxChar> wxStringBase;
+ typedef std::basic_string<wxChar> wxStdString;
#endif
#else
- typedef std::string wxStringBase;
+ typedef std::string wxStdString;
#endif
-#if (defined(__GNUG__) && (__GNUG__ < 3)) || \
- (defined(_MSC_VER) && (_MSC_VER <= 1200))
- #define wxSTRING_BASE_HASNT_CLEAR
-#endif
+#endif // need <string>
+
+#if wxUSE_STL
+
+ // we don't need an extra ctor from std::string when copy ctor already does
+ // the work
+ #undef wxUSE_STD_STRING
+ #define wxUSE_STD_STRING 0
+
+ #if (defined(__GNUG__) && (__GNUG__ < 3)) || \
+ (defined(_MSC_VER) && (_MSC_VER <= 1200))
+ #define wxSTRING_BASE_HASNT_CLEAR
+ #endif
+ typedef wxStdString wxStringBase;
#else // if !wxUSE_STL
-#ifndef HAVE_STD_STRING_COMPARE
+#if !defined(HAVE_STD_STRING_COMPARE) && \
+ (!defined(__WX_SETUP_H__) || wxUSE_STL == 0)
#define HAVE_STD_STRING_COMPARE
#endif
// initializes the string to the empty value (must be called only from
// ctors, use Reinit() otherwise)
void Init() { m_pchData = (wxChar *)wxEmptyString; }
- // initializaes the string with (a part of) C-string
+ // initializes the string with (a part of) C-string
void InitWith(const wxChar *psz, size_t nPos = 0, size_t nLen = npos);
// as Init, but also frees old data
void Reinit() { GetStringData()->Unlock(); Init(); }
// return the character at position n
value_type at(size_type n) const
{ wxASSERT_VALID_INDEX( n ); return m_pchData[n]; }
- value_type operator[](size_type n) const { return at(n); }
// returns the writable character at position n
reference at(size_type n)
{ wxASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; }
- reference operator[](size_type n)
- { wxASSERT_VALID_INDEX( n ); CopyBeforeWrite(); return m_pchData[n]; }
// lib.string.modifiers
// append elements str[pos], ..., str[pos+n]
// find a substring
size_t find(const wxStringBase& str, size_t nStart = 0) const;
- // VC++ 1.5 can't cope with this syntax.
-#if !defined(__VISUALC__) || defined(__WIN32__)
// find first n characters of sz
size_t find(const wxChar* sz, size_t nStart = 0, size_t n = npos) const;
-#endif // VC++ 1.5
// find the first occurence of character ch after nStart
size_t find(wxChar ch, size_t nStart = 0) const;
// as find, but from the end
size_t rfind(const wxStringBase& str, size_t nStart = npos) const;
- // VC++ 1.5 can't cope with this syntax.
// as find, but from the end
size_t rfind(const wxChar* sz, size_t nStart = npos,
size_t n = npos) const;
wxString(const wxChar *psz, wxMBConv& WXUNUSED(conv), size_t nLength = npos)
: wxStringBase(psz, nLength == npos ? wxStrlen(psz) : nLength) { }
+ // even we're not build with wxUSE_STL == 1 it is very convenient to allow
+ // implicit conversions from std::string to wxString as this allows to use
+ // the same strings in non-GUI and GUI code, however we don't want to
+ // unconditionally add this ctor as it would make wx lib dependent on
+ // libstdc++ on some Linux versions which is bad, so instead we ask the
+ // client code to define this wxUSE_STD_STRING symbol if they need it
+#if wxUSE_STD_STRING
+ wxString(const wxStdString& s)
+ : wxStringBase(s.c_str()) { }
+#endif // wxUSE_STD_STRING
+
#if wxUSE_UNICODE
// from multibyte string
wxString(const char *psz, wxMBConv& conv, size_t nLength = npos);
wxString(const wxWCharBuffer& psz) : wxStringBase(psz.data()) { }
#else // ANSI
// from C string (for compilers using unsigned char)
- wxString(const unsigned char* psz, size_t nLength = npos)
+ wxString(const unsigned char* psz)
+ : wxStringBase((const char*)psz) { }
+ // from part of C string (for compilers using unsigned char)
+ wxString(const unsigned char* psz, size_t nLength)
: wxStringBase((const char*)psz, nLength) { }
#if wxUSE_WCHAR_T
{
Truncate(0);
- wxASSERT_MSG( IsEmpty(), _T("string not empty after call to Empty()?") );
+ wxASSERT_MSG( empty(), _T("string not empty after call to Empty()?") );
}
// empty the string and free memory
void Clear()
// data access (all indexes are 0 based)
// read access
wxChar GetChar(size_t n) const
- { return operator[](n); }
+ { return at(n); }
// read/write access
wxChar& GetWritableChar(size_t n)
- { return operator[](n); }
+ { return at(n); }
// write access
void SetChar(size_t n, wxChar ch)
- { operator[](n) = ch; }
+ { at(n) = ch; }
// get last character
wxChar Last() const
{
- wxASSERT_MSG( !IsEmpty(), _T("wxString: index out of bounds") );
+ wxASSERT_MSG( !empty(), _T("wxString: index out of bounds") );
- return operator[](length() - 1);
+ return at(length() - 1);
}
// get writable last character
wxChar& Last()
{
- wxASSERT_MSG( !IsEmpty(), _T("wxString: index out of bounds") );
- return operator[](length() - 1);
+ wxASSERT_MSG( !empty(), _T("wxString: index out of bounds") );
+ return at(length() - 1);
}
/*
- So why do we have all these overloaded operator[]s? A bit of history:
- initially there was only one of them, taking size_t. Then people
- started complaining because they wanted to use ints as indices (I
- wonder why) and compilers were giving warnings about it, so we had to
- add the operator[](int). Then it became apparent that you couldn't
- write str[0] any longer because there was ambiguity between two
- overloads and so you now had to write str[0u] (or, of course, use the
- explicit casts to either int or size_t but nobody did this).
-
- Finally, someone decided to compile wxWin on an Alpha machine and got
- a surprize: str[0u] didn't compile there because it is of type
- unsigned int and size_t is unsigned _long_ on Alpha and so there was
- ambiguity between converting uint to int or ulong. To fix this one we
- now add operator[](uint) for the machines where size_t is not already
- the same as unsigned int - hopefully this fixes the problem (for some
- time)
-
- The only real fix is, of course, to remove all versions but the one
- taking size_t...
+ Note that we we must define all of the overloads below to avoid
+ ambiguity when using str[0]. Also note that for a conforming compiler we
+ don't need const version of operatorp[] at all as indexed access to
+ const string is provided by implicit conversion to "const wxChar *"
+ below and defining them would only result in ambiguities, but some other
+ compilers refuse to compile "str[0]" without them.
*/
- // operator version of GetChar
- wxChar operator[](int n) const
- { return wxStringBase::operator[](n); }
- wxChar& operator[](size_type n)
- { return wxStringBase::operator[](n); }
+#if defined(__BORLANDC__) || defined(__WATCOMC__) || defined(__MWERKS__)
+ wxChar operator[](int n) const
+ { return wxStringBase::at(n); }
wxChar operator[](size_type n) const
- { return wxStringBase::operator[](n); }
+ { return wxStringBase::at(n); }
#ifndef wxSIZE_T_IS_UINT
- // operator version of GetChar
wxChar operator[](unsigned int n) const
- { return wxStringBase::operator[](n); }
+ { return wxStringBase::at(n); }
+#endif // size_t != unsigned int
+#endif // broken compiler
+
- // operator version of GetWriteableChar
+ // operator versions of GetWriteableChar()
+ wxChar& operator[](int n)
+ { return wxStringBase::at(n); }
+ wxChar& operator[](size_type n)
+ { return wxStringBase::at(n); }
+#ifndef wxSIZE_T_IS_UINT
wxChar& operator[](unsigned int n)
- { return wxStringBase::operator[](n); }
+ { return wxStringBase::at(n); }
#endif // size_t != unsigned int
// implicit conversion to C string
// from a character
wxString& operator=(wxChar ch)
{ return (wxString&)wxStringBase::operator=(ch); }
- // from a C string
+ // from a C string - STL probably will crash on NULL,
+ // so we need to compensate in that case
+#if wxUSE_STL
+ wxString& operator=(const wxChar *psz)
+ { if(psz) wxStringBase::operator=(psz); else Clear(); return *this; }
+#else
wxString& operator=(const wxChar *psz)
{ return (wxString&)wxStringBase::operator=(psz); }
+#endif
+
#if wxUSE_UNICODE
// from wxWCharBuffer
wxString& operator=(const wxWCharBuffer& psz)
// string += C string
wxString& Append(const wxString& s)
{
- // test for IsEmpty() to share the string if possible
- if ( IsEmpty() )
+ // test for empty() to share the string if possible
+ if ( empty() )
*this = s;
else
append(s);
{ *this = str + *this; return *this; }
// non-destructive concatenation
- //
- friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string1, const wxString& string2);
- //
+ // two strings
+ friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string1,
+ const wxString& string2);
+ // string with a single char
friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string, wxChar ch);
- //
+ // char with a string
friend wxString WXDLLIMPEXP_BASE operator+(wxChar ch, const wxString& string);
- //
- friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string, const wxChar *psz);
- //
- friend wxString WXDLLIMPEXP_BASE operator+(const wxChar *psz, const wxString& string);
+ // string with C string
+ friend wxString WXDLLIMPEXP_BASE operator+(const wxString& string,
+ const wxChar *psz);
+ // C string with string
+ friend wxString WXDLLIMPEXP_BASE operator+(const wxChar *psz,
+ const wxString& string);
// stream-like functions
// insert an int into string
// insert an unsigned long into string
wxString& operator<<(unsigned long ul)
{ return (*this) << Format(_T("%lu"), ul); }
+#if defined wxLongLong_t && !defined wxLongLongIsLong
+ // insert a long long if they exist and aren't longs
+ wxString& operator<<(wxLongLong_t ll)
+ {
+ const wxChar *fmt = _T("%") wxLongLongFmtSpec _T("d");
+ return (*this) << Format(fmt, ll);
+ }
+ // insert an unsigned long long
+ wxString& operator<<(wxULongLong_t ull)
+ {
+ const wxChar *fmt = _T("%") wxLongLongFmtSpec _T("u");
+ return (*this) << Format(fmt , ull);
+ }
+#endif
// insert a float into string
wxString& operator<<(float f)
{ return (*this) << Format(_T("%f"), f); }
// convert to a double
bool ToDouble(double *val) const;
- // formated input/output
+ // formatted input/output
// as sprintf(), returns the number of characters written or < 0 on error
// (take 'this' into account in attribute parameter count)
int Printf(const wxChar *pszFormat, ...) ATTRIBUTE_PRINTF_2;
int Last( const wxChar ch ) const { return Find(ch, true); }
bool Contains(const wxString& str) const { return Find(str) != wxNOT_FOUND; }
- // use IsEmpty()
- bool IsNull() const { return IsEmpty(); }
+ // use empty()
+ bool IsNull() const { return empty(); }
// std::string compatibility functions
{ return (wxString&)wxStringBase::assign(first, last); }
// string comparison
-#ifndef HAVE_STD_STRING_COMPARE
+#if !defined(HAVE_STD_STRING_COMPARE)
int compare(const wxStringBase& str) const;
// comparison with a substring
int compare(size_t nStart, size_t nLen, const wxStringBase& str) const;
{ return (wxString&)wxStringBase::operator+=(ch); }
};
+// notice that even though for many compilers the friend declarations above are
+// enough, from the point of view of C++ standard we must have the declarations
+// here as friend ones are not injected in the enclosing namespace and without
+// them the code fails to compile with conforming compilers such as xlC or g++4
+wxString WXDLLIMPEXP_BASE operator+(const wxString& string1, const wxString& string2);
+wxString WXDLLIMPEXP_BASE operator+(const wxString& string, wxChar ch);
+wxString WXDLLIMPEXP_BASE operator+(wxChar ch, const wxString& string);
+wxString WXDLLIMPEXP_BASE operator+(const wxString& string, const wxChar *psz);
+wxString WXDLLIMPEXP_BASE operator+(const wxChar *psz, const wxString& string);
+
+
// define wxArrayString, for compatibility
#if WXWIN_COMPATIBILITY_2_4 && !wxUSE_STL
#include "wx/arrstr.h"
{ return (s2.Cmp((const char *)s1) != 0); }
#endif // wxUSE_UNICODE/!wxUSE_UNICODE
-wxString WXDLLIMPEXP_BASE operator+(const wxString& string1, const wxString& string2);
-wxString WXDLLIMPEXP_BASE operator+(const wxString& string, wxChar ch);
-wxString WXDLLIMPEXP_BASE operator+(wxChar ch, const wxString& string);
-wxString WXDLLIMPEXP_BASE operator+(const wxString& string, const wxChar *psz);
-wxString WXDLLIMPEXP_BASE operator+(const wxChar *psz, const wxString& string);
-
#if wxUSE_UNICODE
inline wxString operator+(const wxString& string, const wxWCharBuffer& buf)
{ return string + (const wchar_t *)buf; }
projects / wxWidgets.git / blobdiff