Narrowest integer types of at least 16 bits

Names specified here
Name	Description	Notes				Source
`atomic_int_least16_t`	Atomic integer type		?		T	`<stdatomic.h>`		C11
`atomic_uint_least16_t`	Atomic integer type		?		T	`<stdatomic.h>`		C11
`INT16_C()`	Create constant of type `int_least16_t`	L		M	(·)	`<stdint.h>`	C99	C11
`INT_LEAST16_MAX`	Maximum value of `int_least16_t`	L		M		`<stdint.h>`	C99	C11
`INT_LEAST16_MIN`	Minimum value of `int_least16_t`	L		M		`<stdint.h>`	C99	C11
`int_least16_t`	Smallest signed integer type with at least 16 bits	L			T	`<stdint.h>`	C99	C11
`PRIdLEAST16`	Decimal output conversion specifier for `int_least16_t`			M		`<inttypes.h>`	C99	C11
`PRIiLEAST16`	Decimal output conversion specifier for `int_least16_t`			M		`<inttypes.h>`	C99	C11
`PRIoLEAST16`	Octal output conversion specifier for `uint_least16_t`			M		`<inttypes.h>`	C99	C11
`PRIuLEAST16`	Decimal output conversion specifier for `uint_least16_t`			M		`<inttypes.h>`	C99	C11
`PRIXLEAST16`	Hexdecimal output conversion specifier for `uint_least16_t`			M		`<inttypes.h>`	C99	C11
`PRIxLEAST16`	Hexdecimal output conversion specifier for `uint_least16_t`			M		`<inttypes.h>`	C99	C11
`SCNdLEAST16`	Decimal input conversion specifier for `int_least16_t`			M		`<inttypes.h>`	C99	C11
`SCNiLEAST16`	General input conversion specifier for `int_least16_t`			M		`<inttypes.h>`	C99	C11
`SCNoLEAST16`	Octal input conversion specifier for `uint_least16_t`			M		`<inttypes.h>`	C99	C11
`SCNuLEAST16`	Decimal input conversion specifier for `uint_least16_t`			M		`<inttypes.h>`	C99	C11
`SCNxLEAST16`	Hexdecimal input conversion specifier for `uint_least16_t`			M		`<inttypes.h>`	C99	C11
`UINT16_C()`	Create constant of type `uint_least16_t`	L		M	(·)	`<stdint.h>`	C99	C11
`UINT_LEAST16_MAX`	Maximum value of `uint_least16_t`	L		M		`<stdint.h>`	C99	C11
`uint_least16_t`	Smallest unsigned integer type with at least 16 bits	L			T	`<stdint.h>`	C99	C11

uint_least16_t and int_least16_t are the smallest integer types of at least 16 bits. uint_least16_t is unsigned, and has the range zero to UINT_LEAST16_MAX, which is at least [0, +65535]. int_least16_t is signed, and has the range INT_LEAST16_MIN to INT_LEAST16_MAX, which is at least [−32767, +32767].

The following macros can be used in the fmt argument of printf to print arguments of types uint_least16_t and int_least16_t:

PRIuLEAST16
PRIoLEAST16
PRIxLEAST16
PRIXLEAST16
PRIdLEAST16
PRIiLEAST16

The following macros can be used in the fmt argument of scanf to scan arguments of types uint_least16_t * and int_least16_t *:

SCNuLEAST16
SCNoLEAST16
SCNxLEAST16
SCNdLEAST16
SCNiLEAST16

atomic_uint_least16_t is an alias for _Atomic uint_least16_t. atomic_int_least16_t is an alias for _Atomic int_least16_t.

Related types:

uint16_t
int16_t
uint_least16_t
int_least16_t
uint_fast16_t
int_fast16_t

Property		`uint_least16_t`	`int_least16_t`
Minimum width (bits)		16
Lowest value		0	≤−32767
Highest value		≥+65535	≥+32767
Constant		`UINT16_C(untyped-integer-constant)`	`INT16_C(untyped-integer-constant)`
`printf`	base 10	`"%" PRIuLEAST16`	`"%" PRIdLEAST16` or `"%" PRIiLEAST16`
	base 8	`"%" PRIoLEAST16`
	upper-case base 16	`"%" PRIXLEAST16`
	lower-case base 16	`"%" PRIxLEAST16`
`scanf`	base 10	`"%" SCNuLEAST16`	`"%" SCNdLEAST16`
	base 8	`"%" SCNoLEAST16`
	base 16	`"%" SCNxLEAST16`
	base 16, 8 or 10 by prefix		`"%" SCNiLEAST16`