Crate std_detect

🔬This is a nightly-only experimental API. (stdarch_internal)

Run-time feature detection for the Rust standard library.

To detect whether a feature is enabled in the system running the binary use one of the appropriate macro for the target:

• x86 and x86_64: is_x86_feature_detected
• arm: is_arm_feature_detected
• aarch64: is_aarch64_feature_detected
• riscv: is_riscv_feature_detected
• mips: is_mips_feature_detected
• mips64: is_mips64_feature_detected
• powerpc: is_powerpc_feature_detected
• powerpc64: is_powerpc64_feature_detected
• loongarch: is_loongarch_feature_detected
• s390x: is_s390x_feature_detected

Modules

detect 👻 Experimental

This module implements run-time feature detection.

Macros

detect_featureExperimental

is_aarch64_feature_detectedExperimentalAArch64 or target_arch="arm64ec"

This macro tests, at runtime, whether an aarch64 feature is enabled on aarch64 platforms. Currently most features are only supported on linux-based platforms.

is_arm_feature_detectedExperimentalARM

Checks if arm feature is enabled.

is_loongarch_feature_detectedExperimentalLoongArch LA64

Checks if loongarch feature is enabled. Supported arguments are:

is_mips64_feature_detectedExperimentalMIPS-64

Checks if mips64 feature is enabled.

is_mips_feature_detectedExperimentalMIPS

Checks if mips feature is enabled.

is_powerpc64_feature_detectedExperimentalPowerPC-64

Checks if powerpc feature is enabled.

is_powerpc_feature_detectedExperimentalPowerPC

Checks if powerpc feature is enabled.

is_riscv_feature_detectedExperimentalRISC-V RV32 or RISC-V RV64

A macro to test at runtime whether instruction sets are available on RISC-V platforms.

is_s390x_feature_detectedExperimentals390x

Checks if s390x feature is enabled.

is_x86_feature_detectedExperimentalx86 or x86-64

A macro to test at runtime whether a CPU feature is available on x86/x86-64 platforms.