Share via


String Manipulation

Other versions of this page are also available for the following:

Windows Mobile Not SupportedWindows Embedded CE Supported

8/27/2008

String manipulation routines operate on null-terminated single-byte character and wide-character strings. Use the buffer-manipulation routines, described in Buffer Manipulation, to work with character arrays that do not end with a null character.

Generally, Windows Embedded CE supports wide-character versions of functions rather than other versions. This enables Windows Embedded CE to support Unicode while keeping the library compact.

Routine Use

sprintf, swprintf

Writes formatted data to a string.

These functions have been deprecated because more secure versions are available.

sprintf_s, swprintf_s

Writes formatted data to a string.

Security-enhanced versions of deprecated functions sprintf and swprintf.

Windows Embedded CE 6.0 does not support forms of this function that use the Locale parameter, sprintf_s_l, and swprintf_s_l.

strcat, wcscat

Appends one string to another.

These functions have been deprecated because more secure versions are available.

strcat_s, wsccat_s

Appends a string.

Security-enhanced versions of deprecated functions strcat and wcscat. Template overload available.

Windows Embedded CE 6.0 does not support the multibyte form of this function, _mbscat_s.

strchr, wcschr

Finds first occurrence of specified character in string

strcmp, wcscmp

Compares two strings

strcpy, wcscpy

Copies one string to another.

These functions have been deprecated because more secure versions are available.

strcpy_s, wcscpy_s

Copies a string.

Security-enhanced versions of deprecated functions strcpy and wcscpy. Buffers require NULL termination and should assert on truncation. Template overload available.

Windows Embedded CE 6.0 does not support the multibyte form of this function, _mbscpy_s.

strcspn, wcscspn

Finds first occurrence of character from specified character set in string

_strdup, _wcsdup

Duplicates string

_stricmp, _wcsicmp

Compares two strings without regard to case

strlen, wcslen

Finds length of string.

These functions have been deprecated because more secure versions are available.

strnlen, wcsnlen

Gets the length of a string, using the current locale or one that has been passed in.

More secure than previous versions of strlen and wcslen.

Windows Embedded CE 6.0 does not support the multibyte forms of this function or forms that use the Locale parameter, strnlen_s_l, _mbsnlen_s, _mbsnlen_s_l and _wcsnlen_s_l.

_strlwr, _wcslwr

Converts string to lowercase.

These functions have been deprecated because more secure versions are available.

_strlwr_s, _wcslwr_s

Converts a string to lowercase, using the current locale or a locale object passed in.

Security-enhanced versions of deprecated function _strlwr and _wcslwr.

Windows Embedded CE 6.0 does not support the multibyte forms of this function or forms of this function that use the Locale parameter, _mbslwr_s,

strncat, wcsncat

Appends characters of string.

These functions have been deprecated because more secure versions are available.

strncat_s, wcsncat_s

Appends characters to a string.

Security-enhanced versions of deprecated functions strncat and wcsncat. Validates parameters, template overload available.

Windows Embedded CE 6.0 does not support the multibyte forms of this function or forms that use the Locale parameter, strncat_s_l, _mbsncat_s, _mbsncat_s_l and _wcsncat_s_l.

strncmp, wcsncmp

Compares characters of two strings

strncpy, wcsncpy

Copies characters of one string to another.

These functions have been deprecated because more secure versions are available.

strncpy_s, wcsncpy_s

Copies characters of one string to another.

Security-enhanced versions of deprecated functions strncpy and wcsncpy. Template overload available.

Windows Embedded CE 6.0 does not support the multibyte forms of this function or forms that use the Locale parameter, strncpy_s_l, _mbsncpy_s, _mbsncpy_s_l and _wcsncpy_s_l.

_strnicmp, _wcsnicmp

Compares characters of two strings without regard to case

_strnset, _wcsnset

Sets first n characters of string to specified character.

These functions have been deprecated because more secure versions are available.

_strnset_s, _wcsnset_s

Initializes characters of a string to a given character.

Security-enhanced versions of deprecated functions _strnset and _wcsnet.

Windows Embedded CE 6.0 does not support the multibyte forms of this function or forms that use the Locale parameter, strnset_s_l, _mbsnset_s, _mbsnset_s_l and _wcsnset_s_l.

strpbrk, wcspbrk

Finds first occurrence of character from one string in another string

strrchr, wcsrchr

Finds last occurrence of given character in string

_strrev, _wcsrev

Reverses string

_strset, _wcsset

Sets all characters of string to specified character.

These functions have been deprecated because more secure versions are available.

_strset_s, _wcsset_s

Sets characters of a string to a character.

Security-enhanced versions of deprecated functions _strset and _wcsset.

Windows Embedded CE 6.0 does not support the multibyte forms of this function or forms that use the Locale parameter, strset_s_l, _mbsset_s, _mbsset_s_l and _wcsset_s_l.

strspn, wcsspn

Finds first substring from one string in another string

strstr, wcsstr

Finds first occurrence of specified string in another string

strtod, wcstod

Converts to double-precision value

strtok, wcstok

Finds next token in string.

These functions have been deprecated because more secure versions are available.

strtok_s, wcstok_s

Finds the next token in a string, using the current locale or a locale passed in.

Security-enhanced versions of deprecated functions strtok and wcstok.

Windows Embedded CE 6.0 does not support the multibyte forms of this function or forms that use the Locale parameter, strtok_s_l, _mbstok_s, _mbstok_s_l and _wcstok_s_l.

strtol, wcstol

Converts to long integer value

strtoul, wcstoul

Converts to unsigned long integer value

_strupr, _wcsupr

Converts string to uppercase.

These functions have been deprecated because more secure versions are available.

_strupr_s, _wcsupr_s

Converts a string to uppercase, using the current locale or a specified locale passed in.

Security-enhanced versions of deprecated functions _strup and _wcsrup.

See Also

Other Resources

C/C++ Libraries for Windows Embedded CE
What's New in the C Run-Time Library