zig-functools
所属分类：开发工具
开发工具：Zig
文件大小：0KB
下载次数：0
上传日期：2023-12-23 20:23:03
上 传 者：
sh-1993
说明： 具有用于Zig的有用函数编程工具的库。
(Library with useful functional programming tools for Zig.)
文件列表:
benchmarks/
src/
build.zig
build.zig.zon
# Zig Functools
A Zig library that provides functional programming tools such as map, reduce and filter.
### Add it to your project
Add the `.functools` dependency to your `build.zig.zon`.
```zig
.{
.name = "Your project name",
.version = "x.y.z",
.dependencies = .{
.functools = .{
.url = "https://github.com/ali-shahwali/zig-functools/archive/refs/tags/v0.0.1.tar.gz",
.hash = "12207e0d856ef9cd7f84926ddcd6e1603d75ed2c6f0ed24444ebe2856679629e9055",
},
},
}
```
Add this to your `build.zig` inside the `build` function.
```zig
const functools = b.dependency("functools", .{
.target = target,
.optimize = optimize,
});
exe.addModule("functools", functools.module("functools"));
// Or, if you are building a library
// lib.addModule("functools", functools.module("functools"));
```
The library can now be imported as a module.
```zig
const functools = @import("functools");
```
### Examples
The [tests](https://github.com/ali-shahwali/zig-functools/blob/master/./src/tests.zig) are some examples of how to use the library, below are some simple examples from the tests.
**Map over slice and increment each element.**
```zig
test "test map slice on i32 slice without args " {
const allocator = testing.allocator;
const slice = [3]i32{ 1, 2, 3 };
const incremented = try functools.mapSlice(
allocator,
i32,
&slice,
functools.CommonMappers.inc(i32),
.{},
);
defer allocator.free(incremented);
try testing.expectEqual(incremented[0], 2);
try testing.expectEqual(incremented[1], 3);
try testing.expectEqual(incremented[2], 4);
}
```
**Filter even integers.**
```zig
test "test filter on i32 slice" {
const slice = [5]i32{ 1, 2, 3, 4, 5 };
const allocator = testing.allocator;
const even = try functools.filterSlice(
allocator,
i32,
&slice,
functools.CommonPredicates.even(i32),
.{},
);
defer allocator.free(even);
try testing.expectEqual(even[0], 2);
try testing.expectEqual(even[1], 4);
try testing.expectEqual(even.len, 2);
}
```
**Check that every vector is orthogonal to the x basis vector.**
```zig
fn orthogonal(p1: Point2D, p2: Point2D) bool {
return (p1.x * p2.x + p1.y * p2.y) == 0;
}
test "test every on Point2D slice" {
const slice = [3]Point2D{
.{
.x = 0,
.y = 1,
},
.{
.x = 0,
.y = 3,
},
// This one is not orthogonal to (1, 0)
.{
.x = 1,
.y = 4,
},
};
const e_x = Point2D{
.x = 1,
.y = 0,
};
const every_orthogonal = try functools.everySlice(Point2D, &slice, orthogonal, .{e_x});
try testing.expect(!every_orthogonal);
}
```
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