Headers types.h(3HEAD)
NAME
types.h, types - primitive system data types
SYNOPSIS
#include
DESCRIPTION
The data types defined in are as follows:
32-bit Solaris
The data types listed below are defined in for
32-bit Solaris.
typedef struct { int r[1]; } *physadr;
typedef long clockt;
typedef long daddrt;
typedef char * caddrt;
typedef unsigned char unchar;
typedef unsigned short ushort;
typedef unsigned int uint;
typedef unsigned long ulongt;
typedef unsigned long inot;
typedef long uidt;
typedef long gidt;
typedef ulongt nlinkt;
typedef ulongt modet;
typedef short cntt;
typedef long timet;
typedef int labelt[10];
typedef ulongt devt;
typedef long offt;
typedef long pidt;
typedef long paddrt;
typedef int keyt;
typedef unsigned char uset;
typedef short sysidt;
typedef short indext;
typedef short lockt;
typedef unsigned int sizet;
typedef long clockt;
typedef long pidt;
64-bit Solaris
The data types listed below are defined in for
64-bit Solaris.
typedef long blkcntt
typedef long clockt
typedef long daddrt
typedef ulongt devt
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typedef ulongt fsblkcntt
typedef ulongt fsfilcntt
typedef int gidt
typedef int idt
typedef long inot
typedef int keyt
typedef uintt majort
typedef uintt minort
typedef uintt modet
typedef uintt nlinkt
typedef int pidt
typedef ptrdifft intptrt
typedef ulongt rlimt
typedef ulongt sizet
typedef uintt speedt
typedef long ssizet
typedef long susecondst
typedef uintt tcflagt
typedef long timet
typedef int uidt
typedef int wchart
Preprocessor Symbols
For 32-bit programs, pointers and the C data types int and
long are all 32-bit quantities. For 64-bit programs,
pointers and the C data type long are defined as 64-bit
quantities.
The preprocessor symbol ILP32, made visible by the inclu-
sion of , can be used with the preprocessor
#ifdef construct to define sections of code that will be
compiled only as part of a 32-bit version of a given C pro-
gram.
The preprocessor symbol LP64 can be used in the same way to
define sections of code that will be compiled only as part
of a 64-bit version of a given C program. See EXAMPLES.
This header incorporates definitions of other preprocessor
symbols that can be useful when keeping code portable
between different instruction set architectures.
LITLENDIAN The natural byte order of the
BIGENDIAN processor. A pointer to an int
points to the least/most signifi-
cant byte of that int.
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STACKGROWSUPWARD The processor specific direction
STACKGROWSDOWNWARD of stack growth. A push onto the
stack increases/decreases the
stack pointer, so it stores data
at successively higher/lower
addresses.
CHARISUNSIGNED The C Compiler implements objects
CHARISIGNED of type char as unsigned or
signed respectively. This is
really an implementation choice
of the compiler, but it is speci-
fied in the ABI and tends to be
uniform across compilers for an
instruction set architecture.
CHARALIGNMENT The ABI defines alignment
SHORTALIGNMENT requirements of each of the prim-
INTALIGNMENT itive object types. Some, if not
LONGALIGNMENT all, might be hardware require-
LONGLONGALIGNMENT ments as well. The values are
DOUBLEALIGNMENT expressed in bytes.
LONGDOUBLEALIGNMENT
POINTERALIGNMENT
FMLAOXATALAILGINGMNEMNETNT The most stringent alignment
requirement as specified by the
ABI. Equal to the maximum of all
the above XALIGNMENT values.
LONGLONGALIGNMENT32 The 32-bit ABI supported by a
64-bit kernel may have different
alignment requirements for primi-
tive object types. The value of
this identifier is expressed in
bytes.
USAGE
The daddrt type is used for disk addresses except in an
inode on disk. Times are encoded in seconds since 00:00:00
UTC, January 1, 1970. The major and minor parts of a device
code specify kind and unit number of a device and are
installation-dependent. Offsets are measured in bytes from
the beginning of a file.
The labelt[] types are used to save the processor state
while another process is running.
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EXAMPLES
Example 1 Use of preprocessor symbol LP64.
In the following example, the preprocessor symbol LP64
defines sections of code that will be compiled only as part
of a 64-bit version of the given C program.
#include
...
#ifdef LP64
printf("The data model is LP64 in this environment\n");
#else
#ifdef ILP32
printf("The data model is ILP32 in this environment\n");
#else
#error "Unknown data model!"
#endif
#endif
ATRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
ATRIBUTE TYPE ATRIBUTE VALUE
Interface Stability Stable
SEE ALSO
types32.h(3HEAD), attributes(5), standards(5)
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