5.35 printf_args Pragma

Use this pragma directive on a function with a printf-style format string. For any call to that function, the compiler verifies that the argument to each conversion specifier, for example %d, is syntactically correct.

Suggested Replacement

Not officially supported in XC32 (contradicts IAR compatibility chart but use of attribute is not documented).

Caveats

None.

Examples

Consider migrating IAR code such as:

#pragma __printf_args 
int printf(char const *,...);  

void PrintNumbers(unsigned short x) 
{ 
  printf("%d", x);  /* Compiler checks that x is an integer */ 
}

to MPLAB XC codes similar to:

extern int 
          my_printf (void *my_object, const char *my_format, ...) 

                __attribute__ ((format (printf, 2, 3)));

Further Information

None.