Preprocessor macro expanding to a string
#include <SYS/TYPES.H>
__sec_t_format
This macro expands to a format string qualifier that specifies printf or scanf arguments for __sec_t or __usec_t types. Because different configurations may have different definitions for these types, an extra definition for the qualifier is needed.
__sec_t variable = 3;
_printf("%"__sec_t_format"u\n", variable);