Comparison between some programming languages
about the behavior of round of 0.5
and about Euclidean division: quotient * divisor + remainder
(for example if 7/-3 = -2 and remainder = 1: 7 = -2 * -3 + 1)

	Language		round(0.5)		quotient	remainder			7/3	remainder			-7/3	remainder			7/-3	remainder			-7/-3	remainder
1	Ada		1.00000E+00		/	rem	mod		2	1	1		-2	-1	2		-2	1	-2		2	-1	-1
2	bc				/	%			2	1			-2	-1			-2	1			2	-1
3	C		1.000000		/	%			2	1			-2	-1			-2	1			2	-1
4	C++		1		/	%			2	1			-2	-1			-2	1			2	-1
5	GMP C				mpz_div	mpz_mod			2	1			-3	2			-3				2
6	Java		1		/	%			2	1			-2	-1			-2	1			2	-1
7	JavaScript Node.js		1		Math.trunc(n/d)	%			2	1			-2	-1			-2	1			2	-1
8	PHP		1		intdiv	%			2	1			-2	-1			-2	1			2	-1
9	Python 2		1.0		/	%			2	1			-3	2			-3	-2			2	-1
10	Python 3		0		//	%			2	1			-3	2			-3	-2			2	-1
11	Scala		1		/	%			2	1			-2	-1			-2	1			2	-1
12	Scheme Guile		0.0		quotient	remainder	modulo		2	1	1		-2	-1	2		-2	1	-2		2	-1	-1