Helper macros for printing Q values.

Extends the existing inttypes headers for print formatting. More...

Macros
#define	PRIq(precision)   "s%" PRIu32 ".%0" STRINGIFY(precision) PRIu32
	Insert Q value format string.
#define	PRIq_arg(q, precision, shift)
	Insert Q value arguments to print format.

Detailed Description

Extends the existing inttypes headers for print formatting.

Usage:

printk("Value=%" PRIq "\n", PRIq_arg(value, 6, 2));

For a Q value representing 0.5, the expected output will be: "Value=2.000000"

Macro Definition Documentation

PRIq

#define PRIq

(

precision

)

"s%" PRIu32 ".%0" STRINGIFY(precision) PRIu32

#include <zephyr/dsp/print_format.h>

Insert Q value format string.

PRIq_arg

#define PRIq_arg	(		q,
			precision,
			shift
	)

#include <zephyr/dsp/print_format.h>

Value:

        ((q) < 0 ? "-" : ""), (uint32_t)__PRIq_arg_get_int(q, shift),                              \
                (uint32_t)__PRIq_arg_get_frac(q, precision, shift)

Insert Q value arguments to print format.

Parameters

[in]	q	The q value
[in]	precision	Number of decimal points to print
[in]	shift	The "scale" to shift q by