X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/53dfbfa5c994400f8dfddc8ef3ee3d1e7e0146fe..a703012aedeb8064c8294c6aeeea95e6950ad170:/include/wx/string.h?ds=sidebyside diff --git a/include/wx/string.h b/include/wx/string.h index 32eb250aa9..e1cc80ae33 100644 --- a/include/wx/string.h +++ b/include/wx/string.h @@ -1345,12 +1345,13 @@ public: } #endif // wxUSE_STRING_POS_CACHE - // even if we're not built with wxUSE_STL == 1 it is very convenient to allow - // implicit conversions from std::string to wxString and vice verse 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 + // even if we're not built with wxUSE_STD_STRING_CONV_IN_WXSTRING == 1 it is + // very convenient to allow implicit conversions from std::string to wxString + // and vice verse 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 #if wxUSE_UNICODE_WCHAR wxString(const wxStdWideString& str) : m_impl(str) {} @@ -1368,10 +1369,8 @@ public: #endif #endif // wxUSE_STD_STRING - // Unlike ctor from std::string, we provide conversion to std::string only - // if wxUSE_STL and not merely wxUSE_STD_STRING (which is on by default), - // because it conflicts with operator const char/wchar_t* but we still - // provide explicit conversions to std::[w]string for convenience in any case + // Also always provide explicit conversions to std::[w]string in any case, + // see below for the implicit ones. #if wxUSE_STD_STRING // We can avoid a copy if we already use this string type internally, // otherwise we create a copy on the fly: @@ -1383,7 +1382,13 @@ public: #define wxStringToStdWstringRetType wxStdWideString wxStdWideString ToStdWstring() const { +#if wxUSE_UNICODE_WCHAR + wxScopedWCharBuffer buf = + wxScopedWCharBuffer::CreateNonOwned(m_impl.c_str(), m_impl.length()); +#else // !wxUSE_UNICODE_WCHAR wxScopedWCharBuffer buf(wc_str()); +#endif + return wxStdWideString(buf.data(), buf.length()); } #endif @@ -1402,13 +1407,14 @@ public: } #endif -#if wxUSE_STL - // In wxUSE_STL case we also provide implicit conversions as there is no - // ambiguity with the const char/wchar_t* ones as they are disabled in this - // build (for consistency with std::basic_string<>) +#if wxUSE_STD_STRING_CONV_IN_WXSTRING + // Implicit conversions to std::[w]string are not provided by default as + // they conflict with the implicit conversions to "const char/wchar_t *" + // which we use for backwards compatibility but do provide them if + // explicitly requested. operator wxStringToStdStringRetType() const { return ToStdString(); } operator wxStringToStdWstringRetType() const { return ToStdWstring(); } -#endif // wxUSE_STL +#endif // wxUSE_STD_STRING_CONV_IN_WXSTRING #undef wxStringToStdStringRetType #undef wxStringToStdWstringRetType @@ -1648,11 +1654,12 @@ public: operator wxCStrData() const { return c_str(); } // the first two operators conflict with operators for conversion to - // std::string and they must be disabled in STL build; the next one only - // makes sense if conversions to char* are also defined and not defining it - // in STL build also helps us to get more clear error messages for the code - // which relies on implicit conversion to char* in STL build -#if !wxUSE_STL + // std::string and they must be disabled if those conversions are enabled; + // the next one only makes sense if conversions to char* are also defined + // and not defining it in STL build also helps us to get more clear error + // messages for the code which relies on implicit conversion to char* in + // STL build +#if !wxUSE_STD_STRING_CONV_IN_WXSTRING operator const char*() const { return c_str(); } operator const wchar_t*() const { return c_str(); } @@ -1660,7 +1667,7 @@ public: // wxWidgets versions: this is the same as conversion to const char * so it // may fail! operator const void*() const { return c_str(); } -#endif // wxUSE_STL +#endif // !wxUSE_STD_STRING_CONV_IN_WXSTRING // identical to c_str(), for MFC compatibility const wxCStrData GetData() const { return c_str(); } @@ -2115,7 +2122,7 @@ public: // insert an unsigned long into string wxString& operator<<(unsigned long ul) { return (*this) << Format(wxT("%lu"), ul); } -#if defined wxLongLong_t && !defined wxLongLongIsLong +#ifdef wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG // insert a long long if they exist and aren't longs wxString& operator<<(wxLongLong_t ll) { @@ -2126,7 +2133,7 @@ public: { return (*this) << Format("%" wxLongLongFmtSpec "u" , ull); } -#endif // wxLongLong_t && !wxLongLongIsLong +#endif // wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG // insert a float into string wxString& operator<<(float f) { return (*this) << Format(wxT("%f"), f); } @@ -2210,11 +2217,13 @@ public: // get last nCount characters wxString Right(size_t nCount) const; // get all characters before the first occurrence of ch - // (returns the whole string if ch not found) - wxString BeforeFirst(wxUniChar ch) const; + // (returns the whole string if ch not found) and also put everything + // following the first occurrence of ch into rest if it's non-NULL + wxString BeforeFirst(wxUniChar ch, wxString *rest = NULL) const; // get all characters before the last occurrence of ch - // (returns empty string if ch not found) - wxString BeforeLast(wxUniChar ch) const; + // (returns empty string if ch not found) and also put everything + // following the last occurrence of ch into rest if it's non-NULL + wxString BeforeLast(wxUniChar ch, wxString *rest = NULL) const; // get all characters after the first occurrence of ch // (returns empty string if ch not found) wxString AfterFirst(wxUniChar ch) const; @@ -2318,12 +2327,12 @@ public: // convert to a double bool ToCDouble(double *val) const; - // create a string representing the given floating point number + // create a string representing the given floating point number with the + // default (like %g) or fixed (if precision >=0) precision // in the current locale - static wxString FromDouble(double val) - { return wxString::Format(wxS("%g"), val); } + static wxString FromDouble(double val, int precision = -1); // in C locale - static wxString FromCDouble(double val); + static wxString FromCDouble(double val, int precision = -1); #ifndef wxNEEDS_WXSTRING_PRINTF_MIXIN // formatted input/output