Template:cpp/language/types/range of values

Type	Size in bits	Format	Value range
			Approximate	Exact
character	8	signed		−128 to 127
		unsigned		0 to 255
	16	UTF-16		0 to 65535
	32	UTF-32		0 to 1114111 (0x10ffff)
integer	16	signed	± 3.27 · 104	−32768 to 32767
		unsigned	0 to 6.55 · 104	0 to 65535
	32	signed	± 2.14 · 109	−2,147,483,648 to 2,147,483,647
		unsigned	0 to 4.29 · 109	0 to 4,294,967,295
	64	signed	± 9.22 · 1018	−9,223,372,036,854,775,808 to 9,223,372,036,854,775,807
		unsigned	0 to 1.84 · 1019	0 to 18,446,744,073,709,551,615
binary floating- point	32	IEEE-754	min subnormal: ± 1.401,298,4 · 10−45 min normal: ± 1.175,494,3 · 10−38 max: ± 3.402,823,4 · 1038	min subnormal: ±0x1p−149 min normal: ±0x1p−126 max: ±0x1.fffffep+127
	64	IEEE-754	min subnormal: ± 4.940,656,458,412 · 10−324 min normal: ± 2.225,073,858,507,201,4 · 10−308 max: ± 1.797,693,134,862,315,7 · 10308	min subnormal: ±0x1p−1074 min normal: ±0x1p−1022 max: ±0x1.fffffffffffffp+1023
	80	x86	min subnormal: ± 3.645,199,531,882,474,602,528  · 10−4951 min normal: ± 3.362,103,143,112,093,506,263  · 10−4932 max: ± 1.189,731,495,357,231,765,021  · 104932	min subnormal: ±0x1p−16445 min normal: ±0x1p−16382 max: ±0x1.fffffffffffffffep+16383
	128	IEEE-754	min subnormal: ± 6.475,175,119,438,025,110,924, 438,958,227,646,552,5 · 10−4966 min normal: ± 3.362,103,143,112,093,506,262, 677,817,321,752,602,6 · 10−4932 max: ± 1.189,731,495,357,231,765,085, 759,326,628,007,016,2 · 104932	min subnormal: ±0x1p−16494 min normal: ±0x1p−16382 max: ±0x1.ffffffffffffffffffffffffffff p+16383