《java—c和操作系统数据类型的对应表》.doc

Java—C和操作系统数据类型的对应表
Java Type
C Type
Native Representation
boolean
int
32-bit integer (customizable)
byte
char
8-bit integer
char
wchar_t
platform-dependent
short
short
16-bit integer
int
int
32-bit integer
long
long long, __int64
64-bit integer
float
float
32-bit floating point
double
double
64-bit floating point
Buffer
Pointer
pointer
platform-dependent (32- or 64-bit pointer to memory)
<T>[] (array of primitive type)
pointer
array
32- or 64-bit pointer to memory (argument/return)
contiguous memory (struct member)
除了上面的类型，JNA还支持常见的数据类型的映射。
String
char*
NUL-terminated array (native encoding or )
WString
wchar_t*
NUL-terminated array (unicode)
String[]
char**
NULL-terminated array of C strings
WString[]
wchar_t**
NULL-terminated array of wide C strings
Structure
struct*
struct
pointer to struct (argument