Architecture-Independent Data Types

Instead of using native C/C++ scalar data types, function parameters and return values in the SmartSockets API use architecture-independent SmartSockets data types listed in the table. These data types make the SmartSockets API more portable and consistent across different 32-bit and 64-bit architectures.


SmartSockets Data Type	Description	Example 32-bit C Data Type	Example 64-bit C Data Type
T_STR	character string	`char *`	`char *`
T_PTR	generic pointer	`void *`	`void *`
T_BOOL	boolean	`int`	`int`
T_CHAR	character	`char`	`char`
T_UCHAR	unsigned character	`unsigned char`	`unsigned char`
T_INT1	one-byte integer	`signed char`	`signed char`
T_UINT1	unsigned one-byte integer	`unsigned char`	`unsigned char`
T_INT2	two-byte integer	`short`	`short`
T_UINT2	unsigned two-byte integer	`unsigned short`	`unsigned short`
T_INT4	four-byte integer	`long`	`int`
T_UINT4	unsigned four-byte integer	`unsigned long`	`unsigned int`
T_INT8	eight-byte integer	`long long` `__int64` (Windows)	`long` `__int64` (Windows)
T_REAL4	four-byte real	`float`	`float`
T_REAL8	eight-byte real	`double`	`double`
T_REAL16	sixteen-byte real	`char [16]`	`long double`