diff options
Diffstat (limited to 'vendor/num-traits/build.rs')
-rw-r--r-- | vendor/num-traits/build.rs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/vendor/num-traits/build.rs b/vendor/num-traits/build.rs new file mode 100644 index 0000000..bb78328 --- /dev/null +++ b/vendor/num-traits/build.rs @@ -0,0 +1,24 @@ +use std::env; + +fn main() { + let ac = autocfg::new(); + + ac.emit_expression_cfg( + "unsafe { 1f64.to_int_unchecked::<i32>() }", + "has_to_int_unchecked", + ); + + ac.emit_expression_cfg("1u32.reverse_bits()", "has_reverse_bits"); + ac.emit_expression_cfg("1u32.trailing_ones()", "has_leading_trailing_ones"); + ac.emit_expression_cfg("1u32.div_euclid(1u32)", "has_div_euclid"); + + if env::var_os("CARGO_FEATURE_STD").is_some() { + ac.emit_expression_cfg("1f64.copysign(-1f64)", "has_copysign"); + } + ac.emit_expression_cfg("1f64.is_subnormal()", "has_is_subnormal"); + + ac.emit_expression_cfg("1u32.to_ne_bytes()", "has_int_to_from_bytes"); + ac.emit_expression_cfg("3.14f64.to_ne_bytes()", "has_float_to_from_bytes"); + + autocfg::rerun_path("build.rs"); +} |