#include <string.h>
#include <stdlib.h>
+// This probably isn't right, what should it be Vadim?
+// Otherwise we end up with no wxVsprintf defined.
+#ifdef __WXMOTIF__
+#define HAVE_VPRINTF
+#endif
+
#ifdef wxUSE_WCSRTOMBS
#include <wchar.h> // for wcsrtombs(), see comments where it's used
#endif // GNU
// empty C style string: points to 'string data' byte of g_strEmpty
extern const char *g_szNul = &g_strEmpty.dummy;
+// ----------------------------------------------------------------------------
+// conditional compilation
+// ----------------------------------------------------------------------------
+
+// we want to find out if the current platform supports vsnprintf()-like
+// function: for Unix this is done with configure, for Windows we test the
+// compiler explicitly.
+#ifdef __WXMSW__
+ #ifdef _MSC_VER
+ #define wxVsprintf _vsnprintf
+ #endif
+#else // !Windows
+ #ifdef HAVE_VSNPRINTF
+ #define wxVsprintf vsnprintf
+ #endif
+#endif // Windows/!Windows
+
+#ifndef wxVsprintf
+ // in this case we'll use vsprintf() (which is ANSI and thus should be
+ // always available), but it's unsafe because it doesn't check for buffer
+ // size - so give a warning
+ #define wxVsprintf(buffer,len,format,argptr) vsprintf(buffer,format, argptr)
+#ifndef __SC__
+ #pragma message("Using sprintf() because no snprintf()-like function defined")
+#endif
+#endif
+
// ----------------------------------------------------------------------------
// global functions
// ----------------------------------------------------------------------------
pData->Unlock();
AllocBuffer(nLen);
}
+ else {
+ // update the string length
+ pData->nDataLength = nLen;
+ }
wxASSERT( !GetStringData()->IsShared() ); // we must be the only owner
}
// truncate the string
wxString& wxString::Truncate(size_t uiLen)
{
- *(m_pchData + uiLen) = '\0';
- GetStringData()->nDataLength = uiLen;
+ if ( uiLen < Len() ) {
+ CopyBeforeWrite();
+
+ *(m_pchData + uiLen) = '\0';
+ GetStringData()->nDataLength = uiLen;
+ }
+ //else: nothing to do, string is already short enough
return *this;
}
// static buffer to avoid dynamic memory allocation each time
static char s_szScratch[1024];
+ // NB: wxVsprintf() may return either less than the buffer size or -1 if there
+ // is not enough place depending on implementation
int iLen = wxVsprintf(s_szScratch, WXSIZEOF(s_szScratch), pszFormat, argptr);
char *buffer;
- if ( (size_t)iLen < WXSIZEOF(s_szScratch) ) {
+ if ( iLen < (int)WXSIZEOF(s_szScratch) ) {
buffer = s_szScratch;
}
else {
return *pszTxt == '\0';
}
+// Count the number of chars
+int wxString::Freq(char ch) const
+{
+ int count = 0;
+ int len = Len();
+ for (int i = 0; i < len; i++)
+ {
+ if (GetChar(i) == ch)
+ count ++;
+ }
+ return count;
+}
+
// ---------------------------------------------------------------------------
// standard C++ library string functions
// ---------------------------------------------------------------------------
}
#endif
+// Gives a duplicate symbol (presumably a case-insensitivity problem)
+#if !defined(__BORLANDC__)
size_t wxString::find(char ch, size_t nStart) const
{
wxASSERT( nStart <= Len() );
return p == NULL ? npos : p - c_str();
}
+#endif
size_t wxString::rfind(const wxString& str, size_t nStart) const
{