Arithmetic functions

Functions
int	mirml_ipow (int base, int exp)
	Integer exponentiation: baseexp. More...
mirkl_int64_t	mirml_i64pow (mirkl_int64_t base, mirkl_int64_t exp)
	Similar to mirml_ipow but for 64-bit integers.
int	mirml_test_int64add (mirkl_int64_t si1, mirkl_int64_t si2)
	Tests whether the result of addition of two signed 64-bit integers si1 + si2 fits into a 64-bit signed integer. More...
int	mirml_test_int64sub (mirkl_int64_t si1, mirkl_int64_t si2)
	Tests whether the result of substraction of two signed 64-bit integers si1 - si2 fits into a 64-bit signed integer. More...
int	mirml_test_int64mult (mirkl_int64_t si1, mirkl_int64_t si2)
	Tests whether the result of multiplication of two signed 64-bit integers si1 * si2 fits into a 64-bit signed integer. More...
int	mirml_test_int64rem (mirkl_int64_t si1, mirkl_int64_t si2)
	Tests whether it is possible to calculate remainder of division si1 / si2. More...
int	mirml_test_int64div (mirkl_int64_t si1, mirkl_int64_t si2)
	Tests whether it is possible to calculate result of division si1 / si2. More...
int	mirml_test_int64umin (mirkl_int64_t s)
	Tests whether it is possible to apply unary negation operation to s. More...
int	mirml_is_number (double x)
	Tests the double number if it is NaN or not. More...
int	mirml_is_finite_number (double x)
	Tests the double number is finite. More...
int	mirml_cmp_double (double a, double b, double epsilon)
	Comparison of two double numbers. More...
int	mirml_cmp_float (float a, float b, float epsilon)
	Comparison of two float numbers. More...

Detailed Description

Function Documentation

mirml_cmp_double()

int mirml_cmp_double	(	double	a,
		double	b,
		double	epsilon
	)

Comparison of two double numbers.

This functions takes into account magnitude of the numbers and precision.

Parameters

[in]	a	First value to be compared with the second one.
[in]	b	Second value.
[in]	epsilon	Precision for comparison. This is compared to relative difference. Only if the difference is close to zero or one of the numbers is exactly zero, then this number is used as absolute precision.

Returns

This function returns 0 if numbers are equal, 1 when a > b and -1 when a < b.

mirml_cmp_float()

int mirml_cmp_float	(	float	a,
		float	b,
		float	epsilon
	)

Comparison of two float numbers.

Similar to mirml_cmp_double, see details therein.

mirml_ipow()

int mirml_ipow	(	int	base,
		int	exp
	)

Integer exponentiation: base^exp.

Parameters

[in]	base	Must be positive.
[in]	exp	Must be positive.

Returns

positive result or negative value in case when result does not fit into signed integer.

mirml_is_finite_number()

int mirml_is_finite_number

(

double

x

)

Tests the double number is finite.

Parameters

[in]

x

Tested value

Returns

1 if the number is finite, 0 otherwise.

mirml_is_number()

int mirml_is_number

(

double

x

)

Tests the double number if it is NaN or not.

Parameters

[in]

x

Tested value

Returns

1 if number, 0 if NaN.

mirml_test_int64add()

int mirml_test_int64add	(	mirkl_int64_t	si1,
		mirkl_int64_t	si2
	)

Tests whether the result of addition of two signed 64-bit integers si1 + si2 fits into a 64-bit signed integer.

Parameters

[in]	si1	First value
[in]	si2	Second value

Returns

1 if the result fits into 64-bit signed integer, otherwise - 0.

mirml_test_int64div()

int mirml_test_int64div	(	mirkl_int64_t	si1,
		mirkl_int64_t	si2
	)

Tests whether it is possible to calculate result of division si1 / si2.

Parameters

[in]	si1	Numerator
[in]	si2	Denominator

Returns

1 if possible, otherwise - 0.

mirml_test_int64mult()

int mirml_test_int64mult	(	mirkl_int64_t	si1,
		mirkl_int64_t	si2
	)

Tests whether the result of multiplication of two signed 64-bit integers si1 * si2 fits into a 64-bit signed integer.

Parameters

[in]	si1	First value
[in]	si2	Second value

Returns

1 if the result fits into 64-bit signed integer, otherwise - 0.

mirml_test_int64rem()

int mirml_test_int64rem	(	mirkl_int64_t	si1,
		mirkl_int64_t	si2
	)

Tests whether it is possible to calculate remainder of division si1 / si2.

Parameters

[in]	si1	Numerator
[in]	si2	Denominator

Returns

1 if possible, otherwise - 0.

mirml_test_int64sub()

int mirml_test_int64sub	(	mirkl_int64_t	si1,
		mirkl_int64_t	si2
	)

Tests whether the result of substraction of two signed 64-bit integers si1 - si2 fits into a 64-bit signed integer.

Parameters

[in]	si1	First value
[in]	si2	Second value

Returns

1 if the result fits into 64-bit signed integer, otherwise - 0.

mirml_test_int64umin()

int mirml_test_int64umin

(

mirkl_int64_t

s

)

Tests whether it is possible to apply unary negation operation to s.

Parameters

[in]

s

Tested value

Returns

1 if possible, otherwise - 0.