String Manipulation (CRT)
These routines operate on null-terminated single-byte character, wide-character, and multibyte-character strings. Use the buffer-manipulation routines, described in Buffer Manipulation, to work with character arrays that do not end with a null character.
String-Manipulation Routines
Routine |
Use |
.NET Framework equivalent |
---|---|---|
strcoll, wcscoll, _mbscoll, _strcoll_l, _wcscoll_l, _mbscoll_l, _stricoll, _wcsicoll, _mbsicoll, _stricoll_l, _wcsicoll_l, _mbsicoll_l, _strncoll, _wcsncoll, _mbsncoll, _strncoll_l, _wcsncoll_l, _mbsncoll_l, _strnicoll, _wcsnicoll, _mbsnicoll, _strnicoll_l, _wcsnicoll_l, _mbsnicoll_l |
Compare two character strings using code page information (_mbsicoll and _mbsnicoll are case-insensitive) |
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Move string pointer back one character |
Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples. |
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Advance string pointer by one character |
Not applicable. |
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Append, at most, first n bytes of one character string to another |
Not applicable. |
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Compare first n bytes of two character strings |
Not applicable. |
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_mbsnbcnt, _mbsnbcnt_l, _mbsnccnt, _mbsnccnt_l, _strncnt, _wcsncnt |
Return number of character bytes within supplied character count |
Not applicable. |
Copy n bytes of string |
Not applicable. |
|
Compare n bytes of two character strings, ignoring case |
Not applicable. |
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Set first n bytes of character string to specified character |
Not applicable. |
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_mbsnbcnt, _mbsnbcnt_l, _mbsnccnt, _mbsnccnt_l, _strncnt, _wcsncnt |
Return number of characters within supplied byte count |
Not applicable. |
Find next character in string |
Not applicable. |
|
Advance string pointer by n characters |
Not applicable. |
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Return pointer to first character in given string that is not in another given string |
Not applicable. |
|
Return the number of characters in a formatted string |
Not applicable. |
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_snscanf, _snscanf_l, _snwscanf, _snwscanf_l, _snscanf_s, _snscanf_s_l, _snwscanf_s, _snwscanf_s_l |
Read formatted data of a specified length from the standard input stream. |
Not applicable. |
sscanf, _sscanf_l, swscanf, _swscanf_l, sscanf_s, _sscanf_s_l, swscanf_s, _swscanf_s_l |
Read formatted data of a specified length from the standard input stream. |
Not applicable. |
sprintf, _sprintf_l, swprintf, _swprintf_l, __swprintf_l, sprintf_s, _sprintf_s_l, swprintf_s, _swprintf_s_l, _sprintf_p, _sprintf_p_l, _swprintf_p, _swprintf_p_l |
Write formatted data to a string |
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Append one string to another |
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Find first occurrence of specified character in string |
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Compare two strings |
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strcoll, wcscoll, _mbscoll, _strcoll_l, _wcscoll_l, _mbscoll_l, _stricoll, _wcsicoll, _mbsicoll, _stricoll_l, _wcsicoll_l, _mbsicoll_l, _strncoll, _wcsncoll, _mbsncoll, _strncoll_l, _wcsncoll_l, _mbsncoll_l, _strnicoll, _wcsnicoll, _mbsnicoll, _strnicoll_l, _wcsnicoll_l, _mbsnicoll_l |
Compare two strings using current locale code page information (_stricoll, _wcsicoll, _strnicoll, and _wcsnicoll are case-insensitive) |
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Copy one string to another |
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Find first occurrence of character from specified character set in string |
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Duplicate string |
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strerror, _strerror, _wcserror, __wcserror, strerror_s, _strerror_s, _wcserror_s, __wcserror_s |
Map error number to message string |
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Format date-and-time string |
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_stricmp, _wcsicmp, _mbsicmp, _stricmp_l, _wcsicmp_l, _mbsicmp_l |
Compare two strings without regard to case |
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strlen, strlen_l, wcslen, wcslen_l, _mbslen, _mbslen_l, _mbstrlen, _mbstrlen_l, strnlen, strnlen_s, strnlen_l, wcsnlen, wcsnlen_s, wcsnlen_l, _mbsnlen, _mbsnlen_l, _mbstrnlen, _mbstrnlen_l |
Find length of string |
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_strlwr, _wcslwr, _mbslwr, _strlwr_l, _wcslwr_l, _mbslwr_l, _strlwr_s, _strlwr_s_l, _mbslwr_s, _mbslwr_s_l, _wcslwr_s, _wcslwr_s_l |
Convert string to lowercase |
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strncat, _strncat_l, wcsncat, wcsncat_l, _mbsncat _mbsncat_l, strncat_s, _strncat_s_l, wcsncat_s, _wcsncat_s_l, _mbsncat_s, _mbsncat_s_l |
Append characters of string |
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Compare characters of two strings |
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strncpy, _strncpy_l, wcsncpy, _wcsncpy_l, _mbsncpy, _mbsncpy_l, strncpy_s, _strncpy_s_l, wcsncpy_s, _wcsncpy_s_l, _mbsncpy_s, _mbsncpy_s_l |
Copy characters of one string to another |
|
_strnicmp, _wcsnicmp, _mbsnicmp, _strnicmp_l, _wcsnicmp_l, _mbsnicmp_l |
Compare characters of two strings without regard to case |
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_strnset, _strnset_l, _wcsnset, _wcsnset_l, _mbsnset, _mbsnset_l |
Set first n characters of string to specified character |
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Find first occurrence of character from one string in another string |
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Find last occurrence of given character in string |
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Reverse string |
Not applicable. |
|
Set all characters of string to specified character |
Not applicable. |
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Find first occurrence in a string of a character not found in another string |
Not applicable. |
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Find first occurrence of specified string in another string |
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strtok, _strtok_l, wcstok, _wcstok_l, _mbstok, _mbstok_l, strtok_s, _strtok_s_l, wcstok_s, _wcstok_s_l, _mbstok_s, _mbstok_s_l |
Find next token in string |
Not applicable. |
_strupr, _strupr_l, _mbsupr, _mbsupr_l, _wcsupr_l, _wcsupr, _strupr_s, _strupr_s_l, _mbsupr_s, _mbsupr_s_l, _wcsupr_s, _wcsupr_s_l |
Convert string to uppercase |
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Transform string into collated form based on locale-specific information |
Not applicable. |
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vsprintf, _vsprintf_l, vswprintf, _vswprintf_l, __vswprintf_l, vsprintf_s, _vsprintf_s_l, vswprintf_s, _vswprintf_s_l, _vsprintf_p, _vsprintf_p_l, _vswprintf_p, _vswprintf_p_l |
Write formatted output using a pointer to a list of arguments |
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vsnprintf, _vsnprintf, _vsnprintf_l, _vsnwprintf, _vsnwprintf_l, vsnprintf_s, _vsnprintf_s, _vsnprintf_s_l, _vsnwprintf_s, _vsnwprintf_s_l |
Write formatted output using a pointer to a list of arguments |