ODPH MACROS

API Description

Helper macros.

Macros
#define	ODPH_ARRAY_SIZE(a)   (sizeof(a) / sizeof((a)[0]))
	Return number of elements in array.
#define	ODPH_MIN(a, b)
	Return minimum of two numbers. More...
#define	ODPH_MAX(a, b)
	Return maximum of two numbers. More...
#define	ODPH_ABS(v)
	Return absolute value of signed variable. More...
#define	ODPH_DIV_ROUNDUP(dividend, divisor)
	Return division of two numbers rounded up to the closest integer (positive values expected) More...
#define	ODPH_ROUNDUP_MULTIPLE(x, y)
	Round up 'x' to next multiple of 'y' (positive values expected) More...

Macro Definition Documentation

ODPH_MIN

#define ODPH_MIN	(		a,
			b
	)

Value:

    __extension__ ({            \
        __typeof__(a) min_a = (a);  \
        __typeof__(b) min_b = (b);  \
        min_a < min_b ? min_a : min_b;  \
    })

Return minimum of two numbers.

Definition at line 33 of file macros.h.

ODPH_MAX

#define ODPH_MAX	(		a,
			b
	)

Value:

    __extension__ ({            \
        __typeof__(a) max_a = (a);  \
        __typeof__(b) max_b = (b);  \
        max_a > max_b ? max_a : max_b;  \
    })

Return maximum of two numbers.

Definition at line 43 of file macros.h.

ODPH_ABS

#define ODPH_ABS

(

v

)

Value:

    __extension__ ({            \
        __typeof__(v) abs_v = (v);  \
        abs_v < 0 ? -abs_v : abs_v; \
    })

Return absolute value of signed variable.

Definition at line 53 of file macros.h.

ODPH_DIV_ROUNDUP

#define ODPH_DIV_ROUNDUP	(		dividend,
			divisor
	)

Value:

    __extension__ ({                    \
        __typeof__(dividend) _dividend = (dividend);    \
        __typeof__(divisor) _divisor = (divisor);   \
        (_dividend + _divisor - 1) / _divisor;      \
    })

Return division of two numbers rounded up to the closest integer (positive values expected)

Definition at line 63 of file macros.h.

ODPH_ROUNDUP_MULTIPLE

#define ODPH_ROUNDUP_MULTIPLE	(		x,
			y
	)

Value:

    __extension__ ({                \
        __typeof__(x) _x = (x);         \
        __typeof__(y) _y = (y);         \
        _y * (ODPH_DIV_ROUNDUP(_x, _y));    \
    })

Round up 'x' to next multiple of 'y' (positive values expected)

Definition at line 73 of file macros.h.