architectures.md

Architectures

Source

src/architectures.h

Contents

__arch__

The type of __arch__

macro

Description of __arch__

Represents the processor architecture type. If the judgment fails, the value is set to '__arch_unknown__'.

Value of __arch__

Architecture	Macro
Alpha	__arch_alpha__
x86	__arch_x86__
ARM	__arch_arm__
Blackfin	__arch_blackfin__
Convex	__arch_convex__
Epiphany	__arch_epiphany__
HP/PA RISC	__arch_hppa__
Itanium	__arch_itanium__
Motorola8k	__arch_motorola68k__
MIPS	__arch_mips__0
PowerPC	__arch_ppc__1
Pyramid810	__arch_pyramid9810__2
RS/6000	__arch_rs6000__3
SPARC	__arch_sparc__4
SuperH	__arch_superh__5
SystemZ	__arch_systemz__6
TMS320	__arch_tms320__7
TMS470	__arch_tms470__8
Unknown architecture	__arch_unknown__

Example of __arch__

#include <cppp/cppp-platform.h>

#if (__arch__ == __arch_x86__)
#pragma message "Build in x86."
#elif (__arch__ == __arch_arm__)
#pragma message "Build in arm."
#elif
#pragma message "Build in other."
#endif

int main()
{
    return 0;
}

__arch_name__

Type of __arch_name__

macro

Description of __arch_name__

Architecture name, like uname -m. If the judgment fails, the value is "Unknown".

Example of __arch_name__

#include <cppp/cppp-platform.h>

#include <stdio.h>

int main()
{
    printf("Arch name: %s\n", __arch_name__);
}

__POINTER_WIDTH__

Type of __POINTER_WIDTH__

macro

Description of __POINTER_WIDTH__

This represents the pointer length. The value is generally 32 or 64.

Example of __POINTER_WIDTH__

#include <cppp/cppp-platform.h>
#include <stdio.h>
int main()
{
    printf("Pointer width: %ld\n", __POINTER_WIDTH__);
}