wxWidgets/interface/wxcrt.h
2008-03-08 14:43:31 +00:00

106 lines
3.4 KiB
C

/////////////////////////////////////////////////////////////////////////////
// Name: wxcrt.h
// Purpose: documentation for global functions
// Author: wxWidgets team
// RCS-ID: $Id$
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
/**
Returns a negative value, 0, or positive value if @e p1 is less than, equal
to or greater than @e p2. The comparison is case-sensitive.
This function complements the standard C function @e stricmp() which performs
case-insensitive comparison.
*/
int wxStrcmp(const char * p1, const char * p2);
/**
@b NB: This function is obsolete, use wxString instead.
A macro defined as:
@code
#define wxStringEq(s1, s2) (s1 && s2 && (strcmp(s1, s2) == 0))
@endcode
*/
bool wxStringEq(const wxString& s1, const wxString& s2);
/**
@b NB: This function is obsolete, use wxString::Find instead.
Returns @true if the substring @e s1 is found within @e s2,
ignoring case if @e exact is @false. If @e subString is @false,
no substring matching is done.
*/
bool wxStringMatch(const wxString& s1, const wxString& s2,
bool subString = @true,
bool exact = @false);
/**
This function replaces the dangerous standard function @c sprintf() and is
like @c snprintf() available on some platforms. The only difference with
sprintf() is that an additional argument - buffer size - is taken and the
buffer is never overflowed.
Returns the number of characters copied to the buffer or -1 if there is not
enough space.
@sa wxVsnprintf, wxString::Printf
*/
int wxSnprintf(wxChar * buf, size_t len, const wxChar * format,
...);
/**
This is a convenience function wrapping
wxStringTokenizer which simply returns all tokens
found in the given @e str in an array.
Please see
wxStringTokenizer::wxStringTokenizer
for the description of the other parameters.
*/
wxArrayString wxStringTokenize(const wxString& str,
const wxString& delims = wxDEFAULT_DELIMITERS,
wxStringTokenizerMode mode = wxTOKEN_DEFAULT);
/**
This is a safe version of standard function @e strlen(): it does exactly the
same thing (i.e. returns the length of the string) except that it returns 0 if
@e p is the @NULL pointer.
*/
size_t wxStrlen(const char * p);
/**
The same as wxSnprintf but takes a @c va_list
argument instead of arbitrary number of parameters.
Note that if @c wxUSE_PRINTF_POS_PARAMS is set to 1, then this function supports
positional arguments (see wxString::Printf for more information).
However other functions of the same family (wxPrintf, wxSprintf, wxFprintf,
wxVfprintf,
wxVfprintf, wxVprintf, wxVsprintf) currently do not to support positional
parameters
even when @c wxUSE_PRINTF_POS_PARAMS is 1.
@sa wxSnprintf, wxString::PrintfV
*/
int wxVsnprintf(wxChar * buf, size_t len, const wxChar * format,
va_list argPtr);
/**
Returns @true if the pointer is either @NULL or points to an empty
string, @false otherwise.
*/
bool wxIsEmpty(const char * p);
/**
Returns a negative value, 0, or positive value if @e p1 is less than, equal
to or greater than @e p2. The comparison is case-insensitive.
This function complements the standard C function @e strcmp() which performs
case-sensitive comparison.
*/
int wxStricmp(const char * p1, const char * p2);