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Obsolescent | Recommended |
|---|---|
| bsearch() | bsearch_s() |
| fprintf() | fprintf_s() |
| fscanf() | fscanf_s() |
| fwprintf() | fwprintf_s() |
| fwscanf() | fwscanf_s() |
| getenv() | getenv_s() |
| gmtime() | gmtime_s() |
| localtime() | localtime_s() |
| mbsrtowcs() | mbsrtowcs_s() |
| mbstowcs() | mbstowcs_s() |
| memcpy() | memcpy_s() |
| memmove() | memmove_s() |
| printf() | printf_s() |
| qsort() | qsort_s() |
| scanf() | scanf_s() |
| snprintf() | snprintf_s() |
| sprintf() | sprintf_s() |
| sscanf() | sscanf_s() |
| strcat() | strcat_s() |
| strcpy() | strcpy_s() |
| strerror() | strerror_s() |
| strlen() | strnlen_s() |
| strncat() | strncat_s() |
| strncpy() | strncpy_s() |
| strtok() | strtok_s() |
| swprintf() | swprintf_s() |
| swscanf() | swscanf_s() |
| vfprintf() | vfprintf_s() |
| vfscanf() | vfscanf_s() |
| vfwprintf() | vfwprintf_s() |
| vfwscanf() | vfwscanf_s() |
| vprintf() | vprintf_s() |
| vscanf() | vscanf_s() |
| vsnprintf() | vsnprintf_s() |
| vsprintf() | vsprintf_s() |
| vsscanf() | vsscanf_s() |
| vswprintf() | vswprintf_s() |
| vswscanf() | vswscanf_s() |
| vwprintf() | vwprintf_s() |
| vwscanf() | vwscanf_s() |
| wcrtomb() | wcrtomb_s() |
| wcscat() | wcscat_s() |
| wcscpy() | wcscpy_s() |
| wcslen() | wcsnlen_s() |
| wcsncat() | wcsncat_s() |
| wcsncpy() | wcsncpy_s() |
| wcsrtombs() | wcsrtombs_s() |
| wcstok() | wcstok_s() |
| wcstombs() | wcstombs_s() |
| wctomb() | wctomb_s() |
| wmemcpy() | wmemcpy_s() |
| wmemmove() | wmemmove_s() |
| wprintf() | wprintf_s() |
| wscanf() | wscanf_s() |
For information on the tmpfile() and tmpfile_s() functions, see FIO21-C. Do not create temporary files in shared directories.
For information on the memset() and memset_s() functions, see MSC06-C. Beware of compiler optimizations.
To remediate invocations of obsolescent functions, an application might use any of the following recommended functions from ISO/IEC TR 24731-2, Extensions to the C Library—Part II: Dynamic Allocation Functions [ISO/IEC TR 24731-2]:
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