can_mul.c File Reference

#include "ft_math.h"
#include <limits.h>
#include <stdint.h>

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Functions
bool	can_mul (int a, int b)
bool	can_mulu (unsigned int a, unsigned int b)
bool	can_mull (long a, long b)
bool	can_mulp (size_t a, size_t b)

Function Documentation

can_mul()

bool can_mul	(	int	a,
		int	b
	)

Definition at line 18 of file can_mul.c.

{
    if (a == 0 || b == 0)
        return (true);
    else if ((0 < a && 0 < b) || (a < 0 && b < 0))
        return (b <= (INT_MAX / a));
    else if (b < 0)
        return ((INT_MIN / a) <= b);
    else
        return ((INT_MIN / b) <= a);
}

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can_mull()

bool can_mull	(	long	a,
		long	b
	)

Definition at line 38 of file can_mul.c.

{
    if (a == 0 || b == 0)
        return (true);
    else if ((0 < a && 0 < b) || (a < 0 && b < 0))
        return (b <= (LONG_MAX / a));
    else if (b < 0)
        return ((LONG_MIN / a) <= b);
    else
        return ((LONG_MIN / b) <= a);
}

can_mulp()

bool can_mulp	(	size_t	a,
		size_t	b
	)

Definition at line 50 of file can_mul.c.

{
    if (a == 0 || b == 0)
        return (true);
    else
        return (b <= (UINTPTR_MAX / a));
}

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can_mulu()

bool can_mulu	(	unsigned int	a,
		unsigned int	b
	)

Definition at line 30 of file can_mul.c.

{
    if (a == 0 || b == 0)
        return (true);
    else
        return (b <= (UINT_MAX / a));
}