      1
      2
      3
      4
      5
      6
      7
      8
      9
     10
     11
     12
     13
     14
     15
     16
     17
     18
     19
     20
     21
     22
     23
     24
     25
     26
     27
     28
     29
     30
     31
     32
     33
     34
     35
     36
     37
     38
     39
     40
     41
     42
     43
     44
     45
     46
     47
     48
     49
     50
     51
     52
     53
     54
     55
     56
     57
     58
     59
     60
     61
     62
     63
     64
     65
     66
     67
     68
     69
     70
     71
     72
     73
     74
     75
     76
     77
     78
     79
     80
     81
     82
     83
     84
     85
     86
     87
     88
     89
     90
     91
     92
     93
     94
     95
     96
     97
     98
     99
    100
    101
    102
    103
    104
    105
    106
    107
    108
    109
    110
    111
    112
    113
    114
    115
    116
    117
    118
    119
    120
    121
    122
    123
    124
    125
    126
    127
    128
    129
    130
    131
    132
    133
    134
    135
    136
    137
    138
    139
    140
    141
    142
    143
    144
    145
    146
    147
    148
    149
    150

    //! The `is_{target_arch}_feature_detected!` macro are only available on their
    //! architecture. These macros provide a better error messages when the user
    //! attempts to call them in a different architecture.

    /// Prevents compilation if `is_x86_feature_detected` is used somewhere
    /// else than `x86` and `x86_64` targets.
    #[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))]
    #[macro_export]
    #[unstable(feature = "stdsimd", issue = "27731")]
    macro_rules! is_x86_feature_detected {
        ($t: tt) => {
            compile_error!(
                r#"
            is_x86_feature_detected can only be used on x86 and x86_64 targets.
            You can prevent it from being used in other architectures by
            guarding it behind a cfg(target_arch) as follows:

                #[cfg(any(target_arch = "x86", target_arch = "x86_64"))] {
                    if is_x86_feature_detected(...) { ... }
                }
            "#
            )
        };
    }

    /// Prevents compilation if `is_arm_feature_detected` is used somewhere else
    /// than `ARM` targets.
    #[cfg(not(target_arch = "arm"))]
    #[macro_export]
    #[unstable(feature = "stdsimd", issue = "27731")]
    macro_rules! is_arm_feature_detected {
        ($t:tt) => {
            compile_error!(
                r#"
            is_arm_feature_detected can only be used on ARM targets.
            You can prevent it from being used in other architectures by
            guarding it behind a cfg(target_arch) as follows:

                #[cfg(target_arch = "arm")] {
                    if is_arm_feature_detected(...) { ... }
                }
            "#
            )
        };
    }

    /// Prevents compilation if `is_aarch64_feature_detected` is used somewhere else
    /// than `aarch64` targets.
    #[cfg(not(target_arch = "aarch64"))]
    #[macro_export]
    #[unstable(feature = "stdsimd", issue = "27731")]
    macro_rules! is_aarch64_feature_detected {
        ($t: tt) => {
            compile_error!(
                r#"
            is_aarch64_feature_detected can only be used on AArch64 targets.
            You can prevent it from being used in other architectures by
            guarding it behind a cfg(target_arch) as follows:

                #[cfg(target_arch = "aarch64")] {
                    if is_aarch64_feature_detected(...) { ... }
                }
            "#
            )
        };
    }

    /// Prevents compilation if `is_powerpc_feature_detected` is used somewhere else
    /// than `PowerPC` targets.
    #[cfg(not(target_arch = "powerpc"))]
    #[macro_export]
    #[unstable(feature = "stdsimd", issue = "27731")]
    macro_rules! is_powerpc_feature_detected {
        ($t:tt) => {
            compile_error!(
                r#"
    is_powerpc_feature_detected can only be used on PowerPC targets.
    You can prevent it from being used in other architectures by
    guarding it behind a cfg(target_arch) as follows:

        #[cfg(target_arch = "powerpc")] {
            if is_powerpc_feature_detected(...) { ... }
        }
    "#
            )
        };
    }

    /// Prevents compilation if `is_powerpc64_feature_detected` is used somewhere
    /// else than `PowerPC64` targets.
    #[cfg(not(target_arch = "powerpc64"))]
    #[macro_export]
    #[unstable(feature = "stdsimd", issue = "27731")]
    macro_rules! is_powerpc64_feature_detected {
        ($t:tt) => {
            compile_error!(
                r#"
    is_powerpc64_feature_detected can only be used on PowerPC64 targets.
    You can prevent it from being used in other architectures by
    guarding it behind a cfg(target_arch) as follows:

        #[cfg(target_arch = "powerpc64")] {
            if is_powerpc64_feature_detected(...) { ... }
        }
    "#
            )
        };
    }

    /// Prevents compilation if `is_mips_feature_detected` is used somewhere else
    /// than `MIPS` targets.
    #[cfg(not(target_arch = "mips"))]
    #[macro_export]
    #[unstable(feature = "stdsimd", issue = "27731")]
    macro_rules! is_mips_feature_detected {
        ($t:tt) => {
            compile_error!(
                r#"
            is_mips_feature_detected can only be used on MIPS targets.
            You can prevent it from being used in other architectures by
            guarding it behind a cfg(target_arch) as follows:

                #[cfg(target_arch = "mips")] {
                    if is_mips_feature_detected(...) { ... }
                }
            "#
            )
        };
    }

    /// Prevents compilation if `is_mips64_feature_detected` is used somewhere else
    /// than `MIPS64` targets.
    #[cfg(not(target_arch = "mips64"))]
    #[macro_export]
    #[unstable(feature = "stdsimd", issue = "27731")]
    macro_rules! is_mips64_feature_detected {
        ($t:tt) => {
            compile_error!(
                r#"
            is_mips64_feature_detected can only be used on MIPS64 targets.
            You can prevent it from being used in other architectures by
            guarding it behind a cfg(target_arch) as follows:

                #[cfg(target_arch = "mips64")] {
                    if is_mips64_feature_detected(...) { ... }
                }
            "#
            )
        };
    }