vfprintf, vprintf, vsnprintf, vsprintf - format output of a stdarg argument list
#include <stdarg.h> #include <stdio.h> int vfprintf(FILE *stream, const char *format, va_list ap); int vprintf(const char *format, va_list ap); int vsnprintf(char *s, size_t n, const char *format, va_list ap); int vsprintf(char *s, const char *format, va_list ap);
The vprintf(), vfprintf(), vsnprintf() and vsprintf() functions are the same as printf(), fprintf(), snprintf() and sprintf() respectively, except that instead of being called with a variable number of arguments, they are called with an argument list as defined by <stdarg.h>.These functions do not invoke the va_end macro. As these functions invoke the va_arg macro, the value of ap after the return is indeterminate.
Refer to printf().
Refer to printf().
None.
Applications using these functions should call va_end(ap) afterwards to clean up.
None.
printf(), <stdarg.h>, <stdio.h>.
Derived from Issue 1 of the SVID.