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path: root/lib/std/math/log10.zig
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2025-08-30std: skip some failing tests on hexagonAlex Rønne Petersen
2025-07-22aarch64: add new from scratch self-hosted backendJacob Young
2025-02-17std.Target: Remove functions that just wrap component functions.Alex Rønne Petersen
Functions like isMinGW() and isGnuLibC() have a good reason to exist: They look at multiple components of the target. But functions like isWasm(), isDarwin(), isGnu(), etc only exist to save 4-8 characters. I don't think this is a good enough reason to keep them, especially given that: * It's not immediately obvious to a reader whether target.isDarwin() means the same thing as target.os.tag.isDarwin() precisely because isMinGW() and similar functions *do* look at multiple components. * It's not clear where we would draw the line. The logical conclusion before this commit would be to also wrap Arch.isX86(), Os.Tag.isSolarish(), Abi.isOpenHarmony(), etc... this obviously quickly gets out of hand. * It's nice to just have a single correct way of doing something.
2024-08-28std: update `std.builtin.Type` fields to follow naming conventionsmlugg
The compiler actually doesn't need any functional changes for this: Sema does reification based on the tag indices of `std.builtin.Type` already! So, no zig1.wasm update is necessary. This change is necessary to disallow name clashes between fields and decls on a type, which is a prerequisite of #9938.
2024-02-12x86_64: implement shifts of big integersJacob Young
2023-10-23x86_64: implement enough to pass unicode testsJacob Young
* implement vector comparison * implement reduce for bool vectors * fix `@memcpy` bug * enable passing std tests
2023-10-22Revert "Revert "Merge pull request #17637 from jacobly0/x86_64-test-std""Jacob Young
This reverts commit 6f0198cadbe29294f2bf3153a27beebd64377566.
2023-10-22Revert "Merge pull request #17637 from jacobly0/x86_64-test-std"Andrew Kelley
This reverts commit 0c99ba1eab63865592bb084feb271cd4e4b0357e, reversing changes made to 5f92b070bf284f1493b1b5d433dd3adde2f46727. This caused a CI failure when it landed in master branch due to a 128-bit `@byteSwap` in std.mem.
2023-10-21x86_64: disable difficult std tests and hack around more zero-bit typesJacob Young
2023-06-24all: migrate code to new cast builtin syntaxmlugg
Most of this migration was performed automatically with `zig fmt`. There were a few exceptions which I had to manually fix: * `@alignCast` and `@addrSpaceCast` cannot be automatically rewritten * `@truncate`'s fixup is incorrect for vectors * Test cases are not formatted, and their error locations change
2023-06-19all: zig fmt and rename "@XToY" to "@YFromX"Eric Joldasov
Signed-off-by: Eric Joldasov <bratishkaerik@getgoogleoff.me>
2023-04-30std: fix a bunch of typosLinus Groh
The majority of these are in comments, some in doc comments which might affect the generated documentation, and a few in parameter names - nothing that should be breaking, however.
2023-03-22workaround bootstrapping limitationsAdrian Delgado
2023-03-22std.math: port int log10 from RustAdrian Delgado
2022-04-27compiler-rt: math functions reorgAndrew Kelley
* unify the logic for exporting math functions from compiler-rt, with the appropriate suffixes and prefixes. - add all missing f128 and f80 exports. Functions with missing implementations call other functions and have TODO comments. - also add f16 functions * move math functions from freestanding libc to compiler-rt (#7265) * enable all the f128 and f80 code in the stage2 compiler and behavior tests (#11161). * update std lib to use builtins rather than `std.math`.
2021-11-24AstGen: use reachableExpr for return operandAndrew Kelley
Related: #9630
2021-08-24remove redundant license headers from zig standard libraryAndrew Kelley
We already have a LICENSE file that covers the Zig Standard Library. We no longer need to remind everyone that the license is MIT in every single file. Previously this was introduced to clarify the situation for a fork of Zig that made Zig's LICENSE file harder to find, and replaced it with their own license that required annual payments to their company. However that fork now appears to be dead. So there is no need to reinforce the copyright notice in every single file.
2021-05-08std: update usage of std.testingVeikka Tuominen
2021-04-03Compile error for signed integer mathantlilja
Output compile errors when signed integer types are used on functions where the answer might've been a complex number but that functionality hasn't been implemented. This applies to sqrt, log, log2, log10 and ln. A test which used a signed integer was also changed to use an unsigned integer instead.
2020-12-31Year++Frank Denis
2020-11-05std: Implement more useful approxEq semanticsLemonBoy
Comparisons with absolute epsilons are usually useful when comparing numbers to zero, for non-zero numbers it's advised to switch to relative epsilons instead to obtain meaningful results (check [1] for more details). The new API introduces approxEqAbs and approxEqRel, where the former aliases and deprecated the old `approxEq`, allowing the user to pick the right tool for the job. The documentation is meant to guide the user in the choice of the correct alternative. [1] https://randomascii.wordpress.com/2012/02/25/comparing-floating-point-numbers-2012-edition/
2020-08-20add license header to all std lib filesAndrew Kelley
add SPDX license identifier copyright ownership is zig contributors
2020-07-11run zig fmt on std lib and self hostedVexu
2020-02-24remove usages of `@typeId`, `@memberCount`, `@memberName` and `@memberType`Vexu
2020-01-05remove @TypeOf() hacks for comptime_int/comptime_floatHaze Booth
2019-12-10Replace @typeOf with @TypeOf in all zig sourceRobin Voetter
This change was mostly made with `zig fmt` and this also modified some whitespace. Note that in some files, `zig fmt` produced incorrect code, so the change was made manually.
2019-11-08update more of the std lib to use `@as`Andrew Kelley
2019-11-08update the codebase to use `@as`Andrew Kelley
2019-09-25mv std/ lib/Andrew Kelley
that's all this commit does. further commits will fix cli flags and such. see #2221