The <QtProcessorDetection> header file includes various architecture-specific macros. 更多...
| 头： | #include <QtProcessorDetection> |
The <QtProcessorDetection> header file declares a range of macros (Q_PROCESSOR_*) that are defined if the application is compiled for specified processor architectures. For example, the Q_PROCESSOR_X86 macro is defined if the application is compiled for x86 processors.
The purpose of these macros is to enable programmers to add architecture-specific code to their application.
Expands to the size of a pointer in bytes (4 or 8). This is equivalent to
sizeof(void *)
but can be used in a preprocessor directive.
This macro represents a value you can compare to the macro Q_BYTE_ORDER to determine the endian-ness of your system. In a big-endian system, the most significant byte is stored at the lowest address. The other bytes follow in decreasing order of significance.
#if Q_BYTE_ORDER == Q_BIG_ENDIAN ... #endif
另请参阅 Q_BYTE_ORDER and Q_LITTLE_ENDIAN .
This macro can be used to determine the byte order your system uses for storing data in memory. i.e., whether your system is little-endian or big-endian. It is set by Qt to one of the macros Q_LITTLE_ENDIAN or Q_BIG_ENDIAN . You normally won't need to worry about endian-ness, but you might, for example if you need to know which byte of an integer or UTF-16 character is stored in the lowest address. Endian-ness is important in networking, where computers with different values for Q_BYTE_ORDER must pass data back and forth.
Use this macro as in the following examples.
#if Q_BYTE_ORDER == Q_BIG_ENDIAN ... #endif or #if Q_BYTE_ORDER == Q_LITTLE_ENDIAN ... #endif
另请参阅 Q_BIG_ENDIAN and Q_LITTLE_ENDIAN .
This macro represents a value you can compare to the macro Q_BYTE_ORDER to determine the endian-ness of your system. In a little-endian system, the least significant byte is stored at the lowest address. The other bytes follow in increasing order of significance.
#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN ... #endif
另请参阅 Q_BYTE_ORDER and Q_BIG_ENDIAN .
Defined if the application is compiled for x86 processors. Qt currently supports two x86 variants: Q_PROCESSOR_X86_32 and Q_PROCESSOR_X86_64 .
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for S/390 processors. Qt supports one optional variant of S/390: Q_PROCESSOR_S390_X .
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for Alpha processors.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for ARM processors. Qt currently supports three optional ARM revisions: Q_PROCESSOR_ARM_V5 , Q_PROCESSOR_ARM_V6 ，和 Q_PROCESSOR_ARM_V7 .
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for ARMv5 processors. The Q_PROCESSOR_ARM macro is also defined when Q_PROCESSOR_ARM_V5 is defined.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for ARMv6 processors. The Q_PROCESSOR_ARM and Q_PROCESSOR_ARM_V5 macros are also defined when Q_PROCESSOR_ARM_V6 is defined.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for ARMv7 processors. The Q_PROCESSOR_ARM , Q_PROCESSOR_ARM_V5 ，和 Q_PROCESSOR_ARM_V6 macros are also defined when Q_PROCESSOR_ARM_V7 is defined.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for AVR32 processors.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for Blackfin processors.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for PA-RISC processors.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for IA-64 processors. This includes all Itanium and Itanium 2 processors.
另请参阅 QSysInfo::buildCpuArchitecture ().
[since 6.5]
Q_PROCESSOR_LOONGARCH
Defined if the application is compiled for LoongArch processors.
This macro was introduced in Qt 6.5.
另请参阅 QSysInfo::buildCpuArchitecture ().
[since 6.5]
Q_PROCESSOR_LOONGARCH_32
Defined if the application is compiled for 32-bit LoongArch processors. The Q_PROCESSOR_LOONGARCH macro is also defined when Q_PROCESSOR_LOONGARCH_32 is defined.
This macro was introduced in Qt 6.5.
另请参阅 QSysInfo::buildCpuArchitecture ().
[since 6.5]
Q_PROCESSOR_LOONGARCH_64
Defined if the application is compiled for 64-bit LoongArch processors. The Q_PROCESSOR_LOONGARCH macro is also defined when Q_PROCESSOR_LOONGARCH_64 is defined.
This macro was introduced in Qt 6.5.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for Motorola 68000 processors.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for MIPS processors. Qt currently supports seven MIPS revisions: Q_PROCESSOR_MIPS_I , Q_PROCESSOR_MIPS_II , Q_PROCESSOR_MIPS_III , Q_PROCESSOR_MIPS_IV , Q_PROCESSOR_MIPS_V , Q_PROCESSOR_MIPS_32 ，和 Q_PROCESSOR_MIPS_64 .
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for MIPS32 processors. The Q_PROCESSOR_MIPS , Q_PROCESSOR_MIPS_I ，和 Q_PROCESSOR_MIPS_II macros are also defined when Q_PROCESSOR_MIPS_32 is defined.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for MIPS64 processors. The Q_PROCESSOR_MIPS , Q_PROCESSOR_MIPS_I , Q_PROCESSOR_MIPS_II , Q_PROCESSOR_MIPS_III , Q_PROCESSOR_MIPS_IV ，和 Q_PROCESSOR_MIPS_V macros are also defined when Q_PROCESSOR_MIPS_64 is defined.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for MIPS-I processors. The Q_PROCESSOR_MIPS macro is also defined when Q_PROCESSOR_MIPS_I is defined.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for MIPS-II processors. The Q_PROCESSOR_MIPS and Q_PROCESSOR_MIPS_I macros are also defined when Q_PROCESSOR_MIPS_II is defined.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for MIPS-III processors. The Q_PROCESSOR_MIPS , Q_PROCESSOR_MIPS_I ，和 Q_PROCESSOR_MIPS_II macros are also defined when Q_PROCESSOR_MIPS_III is defined.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for MIPS-IV processors. The Q_PROCESSOR_MIPS , Q_PROCESSOR_MIPS_I , Q_PROCESSOR_MIPS_II ，和 Q_PROCESSOR_MIPS_III macros are also defined when Q_PROCESSOR_MIPS_IV is defined.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for MIPS-V processors. The Q_PROCESSOR_MIPS , Q_PROCESSOR_MIPS_I , Q_PROCESSOR_MIPS_II , Q_PROCESSOR_MIPS_III ，和 Q_PROCESSOR_MIPS_IV macros are also defined when Q_PROCESSOR_MIPS_V is defined.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for POWER processors. Qt currently supports two Power variants: Q_PROCESSOR_POWER_32 and Q_PROCESSOR_POWER_64 .
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for 32-bit Power processors. The Q_PROCESSOR_POWER macro is also defined when Q_PROCESSOR_POWER_32 is defined.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for 64-bit Power processors. The Q_PROCESSOR_POWER macro is also defined when Q_PROCESSOR_POWER_64 is defined.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for RISC-V processors. Qt currently supports two RISC-V variants: Q_PROCESSOR_RISCV_32 and Q_PROCESSOR_RISCV_64 .
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for 32-bit RISC-V processors. The Q_PROCESSOR_RISCV macro is also defined when Q_PROCESSOR_RISCV_32 is defined.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for 64-bit RISC-V processors. The Q_PROCESSOR_RISCV macro is also defined when Q_PROCESSOR_RISCV_64 is defined.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for S/390x processors. The Q_PROCESSOR_S390 macro is also defined when Q_PROCESSOR_S390_X is defined.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for SuperH processors. Qt currently supports one SuperH revision: Q_PROCESSOR_SH_4A .
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for SuperH 4A processors. The Q_PROCESSOR_SH macro is also defined when Q_PROCESSOR_SH_4A is defined.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for SPARC processors. Qt currently supports one optional SPARC revision: Q_PROCESSOR_SPARC_V9 .
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for SPARC V9 processors. The Q_PROCESSOR_SPARC macro is also defined when Q_PROCESSOR_SPARC_V9 is defined.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for 32-bit x86 processors. This includes all i386, i486, i586, and i686 processors. The Q_PROCESSOR_X86 macro is also defined when Q_PROCESSOR_X86_32 is defined.
另请参阅 QSysInfo::buildCpuArchitecture ().
Defined if the application is compiled for 64-bit x86 processors. This includes all AMD64, Intel 64, and other x86_64/x64 processors. The Q_PROCESSOR_X86 macro is also defined when Q_PROCESSOR_X86_64 is defined.
另请参阅 QSysInfo::buildCpuArchitecture ().