5.1.4 Printing Functions Set

The functions set below provides four utilities, one for character output (‘obyte’), one for integer output (‘ointeger’), one for real output (‘oreal’) and one for text output (‘otext’).

#define I_MODE(i)			(*((X1f4_E4_C_MODE *) (i)))
#define I_REAL(r)			(*((X1f4_E4_C_REAL *) (r)))
#define I_TEXT(r)			(*((X1f4_E4_C_TEXT *) (r)))

static int obyte(void *, void *, void **);
static int omode(void *, void *, void **);
static int oreal(void *, void *, void **);
static int otext(void *, void *, void **);

static const int c_____m__[] = {
/* *INDENT-OFF* */
    X1f4_E4_MODE
/* *INDENT-ON* */
}, c_____r__[] = {
/* *INDENT-OFF* */
    X1f4_E4_REAL
/* *INDENT-ON* */
}, c_____t__[] = {
/* *INDENT-OFF* */
    X1f4_E4_TEXT
/* *INDENT-ON* */
};

const struct x1f4_function_type simple_output[] = {
/* *INDENT-OFF* */
    {	"obyte",		obyte,
	X1f4_E4_VOID,		c_____m__,	1,
	X1f4_E4_KEEP_CALL,			5		},
    {	"ointeger",		omode,
	X1f4_E4_VOID,		c_____m__,	1,
	X1f4_E4_KEEP_CALL,			8		},
    {	"oreal",		oreal,
	X1f4_E4_VOID,		c_____r__,	1,
	X1f4_E4_KEEP_CALL,			5		},
    {	"otext",		otext,
	X1f4_E4_VOID,		c_____t__,	1,
	X1f4_E4_KEEP_CALL,			5		},
    {	NULL,			NULL,
	0,			NULL,		0,
	0,					1		}
/* *INDENT-ON* */
};

static int
obyte(void *context, void *output, void **input)
{
    fputc(I_MODE(input[0]), stdout);

    return 0;
}


static int
omode(void *context, void *output, void **input)
{
    x1f4_fprint_lintegral(stdout, 0, 10, I_MODE(input[0]));

    return 0;
}


static int
oreal(void *context, void *output, void **input)
{
    x1f4_fprint_wfloat(stdout, 0, 0, 6, I_REAL(input[0]));

    return 0;
}


static int
otext(void *context, void *output, void **input)
{
    fputs(I_TEXT(input[0]), stdout);

    return 0;
}

The omode and oreal functions may be implemented alternatively as:

static int
omode(void *context, void *output, void **input)
{
    printf("%d", (int) I_MODE(input[0]));

    return 0;
}

and:

static int
oreal(void *context, void *output, void **input)
{
    printf("%f", I_REAL(input[0]));

    return 0;
}