1#![cfg_attr(not(restricted_std), stable(feature = "rust1", since = "1.0.0"))]
220#![cfg_attr(
221 restricted_std,
222 unstable(
223 feature = "restricted_std",
224 issue = "none",
225 reason = "You have attempted to use a standard library built for a platform that it doesn't \
226 know how to support. Consider building it for a known environment, disabling it with \
227 `#![no_std]` or overriding this warning by enabling this feature."
228 )
229)]
230#![rustc_preserve_ub_checks]
231#![doc(
232 html_playground_url = "https://play.rust-lang.org/",
233 issue_tracker_base_url = "https://github.com/rust-lang/rust/issues/",
234 test(no_crate_inject, attr(deny(warnings))),
235 test(attr(allow(dead_code, deprecated, unused_variables, unused_mut)))
236)]
237#![doc(rust_logo)]
238#![doc(cfg_hide(
239 not(test),
240 not(any(test, bootstrap)),
241 no_global_oom_handling,
242 not(no_global_oom_handling)
243))]
244#![no_std]
246#![needs_panic_runtime]
248#![warn(deprecated_in_future)]
251#![warn(missing_docs)]
252#![warn(missing_debug_implementations)]
253#![allow(explicit_outlives_requirements)]
254#![allow(unused_lifetimes)]
255#![allow(internal_features)]
256#![deny(fuzzy_provenance_casts)]
257#![deny(unsafe_op_in_unsafe_fn)]
258#![allow(rustdoc::redundant_explicit_links)]
259#![warn(rustdoc::unescaped_backticks)]
260#![deny(ffi_unwind_calls)]
262#![allow(unused_features)]
264#![cfg_attr(test, feature(internal_output_capture, print_internals, update_panic_count, rt))]
267#![cfg_attr(
268 all(target_vendor = "fortanix", target_env = "sgx"),
269 feature(slice_index_methods, coerce_unsized, sgx_platform)
270)]
271#![cfg_attr(any(windows, target_os = "uefi"), feature(round_char_boundary))]
272#![cfg_attr(target_family = "wasm", feature(stdarch_wasm_atomic_wait))]
273#![cfg_attr(target_arch = "wasm64", feature(simd_wasm64))]
274#![cfg_attr(not(bootstrap), feature(autodiff))]
280#![feature(alloc_error_handler)]
281#![feature(allocator_internals)]
282#![feature(allow_internal_unsafe)]
283#![feature(allow_internal_unstable)]
284#![feature(asm_experimental_arch)]
285#![feature(cfg_sanitizer_cfi)]
286#![feature(cfg_target_thread_local)]
287#![feature(cfi_encoding)]
288#![feature(char_max_len)]
289#![feature(concat_idents)]
290#![feature(core_float_math)]
291#![feature(decl_macro)]
292#![feature(deprecated_suggestion)]
293#![feature(doc_cfg)]
294#![feature(doc_cfg_hide)]
295#![feature(doc_masked)]
296#![feature(doc_notable_trait)]
297#![feature(dropck_eyepatch)]
298#![feature(extended_varargs_abi_support)]
299#![feature(f128)]
300#![feature(f16)]
301#![feature(ffi_const)]
302#![feature(formatting_options)]
303#![feature(if_let_guard)]
304#![feature(intra_doc_pointers)]
305#![feature(iter_advance_by)]
306#![feature(iter_next_chunk)]
307#![feature(lang_items)]
308#![feature(link_cfg)]
309#![feature(linkage)]
310#![feature(macro_metavar_expr_concat)]
311#![feature(maybe_uninit_fill)]
312#![feature(min_specialization)]
313#![feature(must_not_suspend)]
314#![feature(needs_panic_runtime)]
315#![feature(negative_impls)]
316#![feature(never_type)]
317#![feature(optimize_attribute)]
318#![feature(prelude_import)]
319#![feature(rustc_attrs)]
320#![feature(rustdoc_internals)]
321#![feature(staged_api)]
322#![feature(stmt_expr_attributes)]
323#![feature(strict_provenance_lints)]
324#![feature(thread_local)]
325#![feature(try_blocks)]
326#![feature(try_trait_v2)]
327#![feature(type_alias_impl_trait)]
328#![feature(unsigned_signed_diff)]
329#![feature(array_chunks)]
334#![feature(bstr)]
335#![feature(bstr_internals)]
336#![feature(char_internals)]
337#![feature(clone_to_uninit)]
338#![feature(const_float_round_methods)]
339#![feature(core_intrinsics)]
340#![feature(core_io_borrowed_buf)]
341#![feature(duration_constants)]
342#![feature(error_generic_member_access)]
343#![feature(error_iter)]
344#![feature(exact_size_is_empty)]
345#![feature(exclusive_wrapper)]
346#![feature(extend_one)]
347#![feature(float_algebraic)]
348#![feature(float_gamma)]
349#![feature(float_minimum_maximum)]
350#![feature(fmt_internals)]
351#![feature(generic_atomic)]
352#![feature(hasher_prefixfree_extras)]
353#![feature(hashmap_internals)]
354#![feature(hint_must_use)]
355#![feature(ip)]
356#![feature(lazy_get)]
357#![feature(maybe_uninit_slice)]
358#![feature(maybe_uninit_write_slice)]
359#![feature(nonnull_provenance)]
360#![feature(panic_can_unwind)]
361#![feature(panic_internals)]
362#![feature(pin_coerce_unsized_trait)]
363#![feature(pointer_is_aligned_to)]
364#![feature(portable_simd)]
365#![feature(ptr_as_uninit)]
366#![feature(ptr_mask)]
367#![feature(random)]
368#![feature(slice_internals)]
369#![feature(slice_ptr_get)]
370#![feature(slice_range)]
371#![feature(std_internals)]
372#![feature(str_internals)]
373#![feature(strict_provenance_atomic_ptr)]
374#![feature(sync_unsafe_cell)]
375#![feature(temporary_niche_types)]
376#![feature(ub_checks)]
377#![feature(used_with_arg)]
378#![feature(alloc_layout_extra)]
383#![feature(allocator_api)]
384#![feature(get_mut_unchecked)]
385#![feature(map_try_insert)]
386#![feature(new_zeroed_alloc)]
387#![feature(slice_concat_trait)]
388#![feature(thin_box)]
389#![feature(try_reserve_kind)]
390#![feature(try_with_capacity)]
391#![feature(unique_rc_arc)]
392#![feature(vec_into_raw_parts)]
393#![feature(panic_unwind)]
398#![feature(stdarch_internal)]
403#![feature(assert_matches)]
408#![feature(async_iterator)]
409#![feature(c_variadic)]
410#![feature(cfg_accessible)]
411#![feature(cfg_eval)]
412#![feature(concat_bytes)]
413#![feature(const_format_args)]
414#![feature(custom_test_frameworks)]
415#![feature(edition_panic)]
416#![feature(format_args_nl)]
417#![feature(log_syntax)]
418#![feature(test)]
419#![feature(trace_macros)]
420#![feature(io_const_error)]
427#![default_lib_allocator]
430
431#[prelude_import]
434#[allow(unused)]
435use prelude::rust_2021::*;
436
437#[cfg(test)]
439extern crate test;
440
441#[allow(unused_imports)] #[macro_use]
443extern crate alloc as alloc_crate;
444
445#[doc(masked)]
448#[allow(unused_extern_crates)]
449#[cfg(not(all(windows, target_env = "msvc")))]
450extern crate libc;
451
452#[doc(masked)]
454#[allow(unused_extern_crates)]
455extern crate unwind;
456
457#[doc(masked)]
461#[allow(unused_extern_crates)]
462#[cfg(all(
463 not(all(windows, target_env = "msvc", not(target_vendor = "uwp"))),
464 feature = "miniz_oxide"
465))]
466extern crate miniz_oxide;
467
468#[cfg(test)]
475extern crate std as realstd;
476
477#[macro_use]
479mod macros;
480
481#[macro_use]
484pub mod rt;
485
486pub mod prelude;
488
489#[stable(feature = "rust1", since = "1.0.0")]
490pub use core::any;
491#[stable(feature = "core_array", since = "1.35.0")]
492pub use core::array;
493#[unstable(feature = "async_iterator", issue = "79024")]
494pub use core::async_iter;
495#[stable(feature = "rust1", since = "1.0.0")]
496pub use core::cell;
497#[stable(feature = "rust1", since = "1.0.0")]
498pub use core::char;
499#[stable(feature = "rust1", since = "1.0.0")]
500pub use core::clone;
501#[stable(feature = "rust1", since = "1.0.0")]
502pub use core::cmp;
503#[stable(feature = "rust1", since = "1.0.0")]
504pub use core::convert;
505#[stable(feature = "rust1", since = "1.0.0")]
506pub use core::default;
507#[stable(feature = "futures_api", since = "1.36.0")]
508pub use core::future;
509#[stable(feature = "core_hint", since = "1.27.0")]
510pub use core::hint;
511#[stable(feature = "rust1", since = "1.0.0")]
512#[allow(deprecated, deprecated_in_future)]
513pub use core::i8;
514#[stable(feature = "rust1", since = "1.0.0")]
515#[allow(deprecated, deprecated_in_future)]
516pub use core::i16;
517#[stable(feature = "rust1", since = "1.0.0")]
518#[allow(deprecated, deprecated_in_future)]
519pub use core::i32;
520#[stable(feature = "rust1", since = "1.0.0")]
521#[allow(deprecated, deprecated_in_future)]
522pub use core::i64;
523#[stable(feature = "i128", since = "1.26.0")]
524#[allow(deprecated, deprecated_in_future)]
525pub use core::i128;
526#[stable(feature = "rust1", since = "1.0.0")]
527pub use core::intrinsics;
528#[stable(feature = "rust1", since = "1.0.0")]
529#[allow(deprecated, deprecated_in_future)]
530pub use core::isize;
531#[stable(feature = "rust1", since = "1.0.0")]
532pub use core::iter;
533#[stable(feature = "rust1", since = "1.0.0")]
534pub use core::marker;
535#[stable(feature = "rust1", since = "1.0.0")]
536pub use core::mem;
537#[stable(feature = "rust1", since = "1.0.0")]
538pub use core::ops;
539#[stable(feature = "rust1", since = "1.0.0")]
540pub use core::option;
541#[stable(feature = "pin", since = "1.33.0")]
542pub use core::pin;
543#[stable(feature = "rust1", since = "1.0.0")]
544pub use core::ptr;
545#[unstable(feature = "new_range_api", issue = "125687")]
546pub use core::range;
547#[stable(feature = "rust1", since = "1.0.0")]
548pub use core::result;
549#[stable(feature = "rust1", since = "1.0.0")]
550#[allow(deprecated, deprecated_in_future)]
551pub use core::u8;
552#[stable(feature = "rust1", since = "1.0.0")]
553#[allow(deprecated, deprecated_in_future)]
554pub use core::u16;
555#[stable(feature = "rust1", since = "1.0.0")]
556#[allow(deprecated, deprecated_in_future)]
557pub use core::u32;
558#[stable(feature = "rust1", since = "1.0.0")]
559#[allow(deprecated, deprecated_in_future)]
560pub use core::u64;
561#[stable(feature = "i128", since = "1.26.0")]
562#[allow(deprecated, deprecated_in_future)]
563pub use core::u128;
564#[unstable(feature = "unsafe_binders", issue = "130516")]
565pub use core::unsafe_binder;
566#[stable(feature = "rust1", since = "1.0.0")]
567#[allow(deprecated, deprecated_in_future)]
568pub use core::usize;
569
570#[stable(feature = "rust1", since = "1.0.0")]
571pub use alloc_crate::borrow;
572#[stable(feature = "rust1", since = "1.0.0")]
573pub use alloc_crate::boxed;
574#[stable(feature = "rust1", since = "1.0.0")]
575pub use alloc_crate::fmt;
576#[stable(feature = "rust1", since = "1.0.0")]
577pub use alloc_crate::format;
578#[stable(feature = "rust1", since = "1.0.0")]
579pub use alloc_crate::rc;
580#[stable(feature = "rust1", since = "1.0.0")]
581pub use alloc_crate::slice;
582#[stable(feature = "rust1", since = "1.0.0")]
583pub use alloc_crate::str;
584#[stable(feature = "rust1", since = "1.0.0")]
585pub use alloc_crate::string;
586#[stable(feature = "rust1", since = "1.0.0")]
587pub use alloc_crate::vec;
588
589#[path = "num/f128.rs"]
590pub mod f128;
591#[path = "num/f16.rs"]
592pub mod f16;
593#[path = "num/f32.rs"]
594pub mod f32;
595#[path = "num/f64.rs"]
596pub mod f64;
597
598#[macro_use]
599pub mod thread;
600pub mod ascii;
601pub mod backtrace;
602#[unstable(feature = "bstr", issue = "134915")]
603pub mod bstr;
604pub mod collections;
605pub mod env;
606pub mod error;
607pub mod ffi;
608pub mod fs;
609pub mod hash;
610pub mod io;
611pub mod net;
612pub mod num;
613pub mod os;
614pub mod panic;
615#[unstable(feature = "pattern_type_macro", issue = "123646")]
616pub mod pat;
617pub mod path;
618pub mod process;
619#[unstable(feature = "random", issue = "130703")]
620pub mod random;
621pub mod sync;
622pub mod time;
623
624#[path = "../../portable-simd/crates/std_float/src/lib.rs"]
627#[allow(missing_debug_implementations, dead_code, unsafe_op_in_unsafe_fn)]
628#[allow(rustdoc::bare_urls)]
629#[unstable(feature = "portable_simd", issue = "86656")]
630mod std_float;
631
632#[unstable(feature = "portable_simd", issue = "86656")]
633pub mod simd {
634 #![doc = include_str!("../../portable-simd/crates/core_simd/src/core_simd_docs.md")]
635
636 #[doc(inline)]
637 pub use core::simd::*;
638
639 #[doc(inline)]
640 pub use crate::std_float::StdFloat;
641}
642
643#[unstable(feature = "autodiff", issue = "124509")]
644#[cfg(not(bootstrap))]
645pub mod autodiff {
647 pub use core::autodiff::{autodiff_forward, autodiff_reverse};
649}
650
651#[stable(feature = "futures_api", since = "1.36.0")]
652pub mod task {
653 #[doc(inline)]
656 #[stable(feature = "wake_trait", since = "1.51.0")]
657 pub use alloc::task::*;
658 #[doc(inline)]
659 #[stable(feature = "futures_api", since = "1.36.0")]
660 pub use core::task::*;
661}
662
663#[doc = include_str!("../../stdarch/crates/core_arch/src/core_arch_docs.md")]
664#[stable(feature = "simd_arch", since = "1.27.0")]
665pub mod arch {
666 #[stable(feature = "simd_arch", since = "1.27.0")]
667 #[doc(no_inline)] pub use core::arch::*;
673
674 #[stable(feature = "simd_aarch64", since = "1.60.0")]
675 pub use std_detect::is_aarch64_feature_detected;
676 #[unstable(feature = "stdarch_arm_feature_detection", issue = "111190")]
677 pub use std_detect::is_arm_feature_detected;
678 #[unstable(feature = "is_loongarch_feature_detected", issue = "117425")]
679 pub use std_detect::is_loongarch_feature_detected;
680 #[unstable(feature = "is_riscv_feature_detected", issue = "111192")]
681 pub use std_detect::is_riscv_feature_detected;
682 #[unstable(feature = "stdarch_s390x_feature_detection", issue = "135413")]
683 pub use std_detect::is_s390x_feature_detected;
684 #[stable(feature = "simd_x86", since = "1.27.0")]
685 pub use std_detect::is_x86_feature_detected;
686 #[unstable(feature = "stdarch_mips_feature_detection", issue = "111188")]
687 pub use std_detect::{is_mips_feature_detected, is_mips64_feature_detected};
688 #[unstable(feature = "stdarch_powerpc_feature_detection", issue = "111191")]
689 pub use std_detect::{is_powerpc_feature_detected, is_powerpc64_feature_detected};
690}
691
692#[stable(feature = "simd_x86", since = "1.27.0")]
694pub use std_detect::is_x86_feature_detected;
695
696mod sys;
698mod sys_common;
699
700pub mod alloc;
701
702mod panicking;
704
705#[path = "../../backtrace/src/lib.rs"]
706#[allow(dead_code, unused_attributes, fuzzy_provenance_casts, unsafe_op_in_unsafe_fn)]
707mod backtrace_rs;
708
709#[unstable(feature = "cfg_select", issue = "115585")]
710pub use core::cfg_select;
711#[unstable(
712 feature = "concat_bytes",
713 issue = "87555",
714 reason = "`concat_bytes` is not stable enough for use and is subject to change"
715)]
716pub use core::concat_bytes;
717#[stable(feature = "matches_macro", since = "1.42.0")]
718#[allow(deprecated, deprecated_in_future)]
719pub use core::matches;
720#[stable(feature = "core_primitive", since = "1.43.0")]
721pub use core::primitive;
722#[stable(feature = "todo_macro", since = "1.40.0")]
723#[allow(deprecated, deprecated_in_future)]
724pub use core::todo;
725#[stable(feature = "builtin_macro_prelude", since = "1.38.0")]
727#[allow(deprecated)]
728pub use core::{
729 assert, assert_matches, cfg, column, compile_error, concat, concat_idents, const_format_args,
730 env, file, format_args, format_args_nl, include, include_bytes, include_str, line, log_syntax,
731 module_path, option_env, stringify, trace_macros,
732};
733#[stable(feature = "rust1", since = "1.0.0")]
735#[allow(deprecated, deprecated_in_future)]
736pub use core::{
737 assert_eq, assert_ne, debug_assert, debug_assert_eq, debug_assert_ne, r#try, unimplemented,
738 unreachable, write, writeln,
739};
740
741include!("../../core/src/primitive_docs.rs");
745
746include!("keyword_docs.rs");
750
751#[unstable(feature = "restricted_std", issue = "none")]
755mod __restricted_std_workaround {}
756
757mod sealed {
758 #[unstable(feature = "sealed", issue = "none")]
762 pub trait Sealed {}
763}
764
765#[cfg(test)]
766#[allow(dead_code)] pub(crate) mod test_helpers;