C++MS_DOS编程常用数据类型

最新推荐文章于 2025-12-11 13:54:18 发布

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本文详细介绍了多种数据类型的描述、默认符号及位数，包括布尔型、字节型、字符型、双精度浮点型等，涵盖了整数、浮点数、错误状态返回值等多种常见数据类型。

Data type	Description	Default sign
Boolean	8 bits. Not compatible with oleautomation interfaces; use VARIANT_BOOL instead.	Unsigned
byte	8 bits.	(not applicable)
char	8 bits.	Unsigned
double	64-bit floating point number.	(not applicable)
error_status_t	32-bit unsigned integer for returning status values for error handling.	Unsigned
float	32-bit floating point number.	(not applicable)
handle_t	Primitive handle type for binding.	(not applicable)
hyper	64-bit integer.	Signed
int	32-bit integer. On 16-bit platforms, cannot appear in remote functions without a size qualifier such as short, small, long or hyper.	Signed
__int8	8-bit integer. Equivalent to small.	Signed
__int16	16-bit integer. Equivalent to short.	Signed
__int32	32-bit integer. Equivalent to long.	Signed
__int3264	An integer that is 32-bit on 32-bit platforms, and is 64-bit on 64-bit platforms.	Signed
__int64	64-bit integer. Equivalent to hyper.	Signed
long	32-bit integer.	Signed
short	16-bt integer.	Signed
small	8-bit integer.	Signed
void	Indicates that the procedure does not return a value.	(not applicable)
void *	32-bit pointer for context handles only.	(not applicable)
wchar_t	16-bit predefined type for wide characters.	Unsigned