2010年6月14日 · strncpy_s(lstr, "Hello, this is a long string", _TRUNCATE); This does what I want. It would be nice to still get an ASSERT() in the debug version, but at least the above code doesn't terminate the program in the release build, and doesn't require the programmer to give the correct string length every time.

2000年6月12日 · Use str.operator LPCSTR() as parameter for strncpy function, for every CString. Or, try this: CString Left( int nCount ) const; throw( CMemoryException ); Return Value A CString object containing a copy of the specified range of characters. Note that the returned CString object may be empty. Parameters nCount

2014年2月6日 · If I use strncpy, then found other errors.Works only with strncpy_s part of code: std::strncpy_s(username, 40, text + 1, accend - 1);

2004年12月8日 · 2) If you have a buffer of known size, you should use strncpy(). strncpy() represents a slight inefficiency on buffers excessively larger than the copied string since it zeros out the remainder of the buffer; and due to its poor behavior if the buffer is too small, you have to set buffer[bufsize-1] = 0 after the strncpy() call to ensure safety.

2017年6月2日 · All advice is offered in good faith only. All my code is tested (unless stated explicitly otherwise) with the latest version of Microsoft Visual Studio (using the supported features of the latest standard) and is offered as examples only - not as production quality.

2007年11月20日 · If I understood right, the only difference is that one is secure and the other isn't? Why can I use strncpy_s like this: strncpy_s(Nouveau.album, album.c_str(), 30); But I can't use it like this: strncpy_s(Nouveau.annee, annee.c_str(), 4); The only difference between Nouveau.album and Nouveau.annee is that album is a char array of size 30, and annee is a …

2009年5月29日 · There's almost no reason to prefer strcpy_s over strncpy. Both limit the number of characters written to the buffer size. The latter doesn't guarantee to NULL-terminate the buffer, so just make sure to strncpy with a limit of 1 byte fewer than you actually have, and then set the last byte to 0 to be on the safe side.

2005年7月20日 · I need to do bit operations on some binary data stored in a buffer called "memory_buffer" shown below. Being new to the STL, I didn't know how to do this within the string (or stringstream in this case).

2008年12月16日 · I have been tasked fixing deprecations and need some help with some rather newbie problems. Listed below are two examples of some warnings that I need to address. I am seeking some examples on the proper use of strcpy_s & strncpy_s or a link to some "How To:".

2008年1月18日 · It's not safe. Use strncpy instead, to avoid the possibility of buffer overflow. January 18th, 2008, 03:55 ...