[babeltrace.git] / src / common / safe.h


#include <stdbool.h>
#include <stdint.h>

static inline
bool bt_safe_to_mul_int64(int64_t a, int64_t b)
{
	if (a == 0 || b == 0) {
		return true;
	}

	return a < INT64_MAX / b;
}

static inline
bool bt_safe_to_mul_uint64(uint64_t a, uint64_t b)
{
	if (a == 0 || b == 0) {
		return true;
	}

	return a < UINT64_MAX / b;
}

static inline
bool bt_safe_to_add_int64(int64_t a, int64_t b)
{
	return a <= INT64_MAX - b;
}

static inline
bool bt_safe_to_add_uint64(uint64_t a, uint64_t b)
{
	return a <= UINT64_MAX - b;
}
Commit	Line	Data
91d81473 MJ	1
	2	#include <stdbool.h>
	3	#include <stdint.h>
	4
	5	static inline
	6	bool bt_safe_to_mul_int64(int64_t a, int64_t b)
	7	{
	8	if (a == 0 \|\| b == 0) {
	9	return true;
	10	}
	11
	12	return a < INT64_MAX / b;
	13	}
	14
	15	static inline
	16	bool bt_safe_to_mul_uint64(uint64_t a, uint64_t b)
	17	{
	18	if (a == 0 \|\| b == 0) {
	19	return true;
	20	}
	21
	22	return a < UINT64_MAX / b;
	23	}
	24
	25	static inline
	26	bool bt_safe_to_add_int64(int64_t a, int64_t b)
	27	{
	28	return a <= INT64_MAX - b;
	29	}
	30
	31	static inline
	32	bool bt_safe_to_add_uint64(uint64_t a, uint64_t b)
	33	{
	34	return a <= UINT64_MAX - b;
	35	}