C data types

https://en.wikipedia.org/wiki/C_data_types

Type	Explanation	Min size (bits	Format specifier
char	Smallest addressable unit of the machine that can contain basic character set. It is an integer type. Actual type can be either signed or unsigned.  It contains CHAR_BIT bits.	8	%c
signed char	Of the same size as char, but guaranteed to be signed. Capable of containing at least the [−127, +127] range.	8	%c (or %hhi for numerical output)
unsigned char	Of the same size as char, but guaranteed to be unsigned.  Contains at least the [0, 255] range.	8	%c (or %hhu for numerical output)
short short int signed short signed short int	Short signed integer type. Capable of containing at least the [−32,767, +32,767] range.	16	%hi or %hd
unsigned short unsigned short int	Short unsigned integer type. Contains at least the [0, 65,535] range.	16	%hu
int signed signed int	Basic signed integer type. Capable of containing at least the [−32,767, +32,767] range.	16	%i or %d
unsigned unsigned int	Basic unsigned integer type. Contains at least the [0, 65,535] range.	16	%u
long long int signed long signed long int	Long signed integer type. Capable of containing at least the [−2,147,483,647, +2,147,483,647] range.	32	%li or %ld
unsigned long unsigned long int	Long unsigned integer type. Capable of containing at least the [0, 4,294,967,295] range.	32	%lu
long long long long int signed long long signed long long int	Long long signed integer type. Capable of containing at least the [−9,223,372,036,854,775,807, +9,223,372,036,854,775,807] range. Specified since the C99 version of the standard.	64	%lli or %lld
unsigned long long unsigned long long int	Long long unsigned integer type. Contains at least the [0, +18,446,744,073,709,551,615] range. Specified since the C99 version of the standard.	64	%llu
float	Real floating-point type, usually referred to as a single-precision floating-point type. Actual properties unspecified (except minimum limits); however, on most systems, this is the IEEE 754 single-precision binary floating-point format (32 bits). This format is required by the optional Annex F "IEC 60559 floating-point arithmetic".		Converting from text: %f %F %g %G %e %E %a %A
double	Real floating-point type, usually referred to as a double-precision floating-point type. Actual properties unspecified (except minimum limits); however, on most systems, this is the IEEE 754 double-precision binary floating-point format (64 bits). This format is required by the optional Annex F "IEC 60559 floating-point arithmetic".		%lf %lF %lg %lG %le %lE %la %lA
long double	Real floating-point type, usually mapped to an extended precision floating-point number format. Actual properties unspecified. It can be either x86 extended-precision floating-point format (80 bits, but typically 96 bits or 128 bits in memory with padding bytes), the non-IEEE "double-double" (128 bits), IEEE 754 quadruple-precision floating-point format (128 bits), or the same as double. See the article on long double for details.		%Lf %LF %Lg %LG %Le %LE %La %LA