### IBM C and C++ Compilers Functions and Macros: "V"

Function/Macro | #include file | ANSI/ISO | ANSI/ISO 93 | POSIX | XPG4 | Extension | Subsystem
va_arg | <stdarg.h> | X |  |  |  |  | X
va_end | <stdarg.h> | X |  |  |  |  | X
va_start | <stdarg.h> | X |  |  |  |  | X
vfprintf | <stdarg.h> <stdio.h> | X X |  |  | X X | X X | X X
vfwprintf | <stdarg.h> <stdio.h> <wchar.h> |  | X |  | X |  |
vprintf | <stdarg.h> <stdio.h> | X X |  |  | X X | X X | X X
vsprintf | <stdarg.h> <stdio.h> | X X |  |  | X X | X X | X X
vswprintf | <wchar.h> |  | X |  | X |  |
vwprintf | <stdarg.h> <wchar.h> |  | X |  | X |  |

IBM C and C++ Compilers Functions and Macros