Narrowest integer types of at least 8 bits

Names specified here
Name	Description	Notes				Source
`atomic_int_least8_t`	Atomic integer type		?		T	`<stdatomic.h>`		C11
`atomic_uint_least8_t`	Atomic integer type		?		T	`<stdatomic.h>`		C11
`INT8_C()`	Create constant of type `int_least8_t`	L		M	(·)	`<stdint.h>`	C99	C11
`INT_LEAST8_MAX`	Maximum value of `int_least8_t`	L		M		`<stdint.h>`	C99	C11
`INT_LEAST8_MIN`	Minimum value of `int_least8_t`	L		M		`<stdint.h>`	C99	C11
`int_least8_t`	Smallest signed integer type with at least 8 bits	L			T	`<stdint.h>`	C99	C11
`PRIdLEAST8`	Decimal output conversion specifier for `int_least8_t`			M		`<inttypes.h>`	C99	C11
`PRIiLEAST8`	Decimal output conversion specifier for `int_least8_t`			M		`<inttypes.h>`	C99	C11
`PRIoLEAST8`	Octal output conversion specifier for `uint_least8_t`			M		`<inttypes.h>`	C99	C11
`PRIuLEAST8`	Decimal output conversion specifier for `uint_least8_t`			M		`<inttypes.h>`	C99	C11
`PRIXLEAST8`	Hexdecimal output conversion specifier for `uint_least8_t`			M		`<inttypes.h>`	C99	C11
`PRIxLEAST8`	Hexdecimal output conversion specifier for `uint_least8_t`			M		`<inttypes.h>`	C99	C11
`SCNdLEAST8`	Decimal input conversion specifier for `int_least8_t`			M		`<inttypes.h>`	C99	C11
`SCNiLEAST8`	General input conversion specifier for `int_least8_t`			M		`<inttypes.h>`	C99	C11
`SCNoLEAST8`	Octal input conversion specifier for `uint_least8_t`			M		`<inttypes.h>`	C99	C11
`SCNuLEAST8`	Decimal input conversion specifier for `uint_least8_t`			M		`<inttypes.h>`	C99	C11
`SCNxLEAST8`	Hexdecimal input conversion specifier for `uint_least8_t`			M		`<inttypes.h>`	C99	C11
`UINT8_C()`	Create constant of type `uint_least8_t`	L		M	(·)	`<stdint.h>`	C99	C11
`UINT_LEAST8_MAX`	Maximum value of `uint_least8_t`	L		M		`<stdint.h>`	C99	C11
`uint_least8_t`	Smallest unsigned integer type with at least 8 bits	L			T	`<stdint.h>`	C99	C11

uint_least8_t and int_least8_t are the smallest integer types of at least 8 bits. uint_least8_t is unsigned, and has the range zero to UINT_LEAST8_MAX, which is at least [0, +255]. int_least8_t is signed, and has the range INT_LEAST8_MIN to INT_LEAST8_MAX, which is at least [−127, +127].

The following macros can be used in the fmt argument of printf to print arguments of types uint_least8_t and int_least8_t:

PRIuLEAST8
PRIoLEAST8
PRIxLEAST8
PRIXLEAST8
PRIdLEAST8
PRIiLEAST8

The following macros can be used in the fmt argument of scanf to scan arguments of types uint_least8_t * and int_least8_t *:

SCNuLEAST8
SCNoLEAST8
SCNxLEAST8
SCNdLEAST8
SCNiLEAST8

atomic_uint_least8_t is an alias for _Atomic uint_least8_t. atomic_int_least8_t is an alias for _Atomic int_least8_t.

Related types:

uint8_t
int8_t
uint_least8_t
int_least8_t
uint_fast8_t
int_fast8_t

Property		`uint_least8_t`	`int_least8_t`
Minimum width (bits)		8
Lowest value		0	≤−127
Highest value		≥+255	≥+127
Constant		`UINT8_C(untyped-integer-constant)`	`INT8_C(untyped-integer-constant)`
`printf`	base 10	`"%" PRIuLEAST8`	`"%" PRIdLEAST8` or `"%" PRIiLEAST8`
	base 8	`"%" PRIoLEAST8`
	upper-case base 16	`"%" PRIXLEAST8`
	lower-case base 16	`"%" PRIxLEAST8`
`scanf`	base 10	`"%" SCNuLEAST8`	`"%" SCNdLEAST8`
	base 8	`"%" SCNoLEAST8`
	base 16	`"%" SCNxLEAST8`
	base 16, 8 or 10 by prefix		`"%" SCNiLEAST8`