Built-ins and standard library status
Scarp v0.0.5-alpha.1 does not have a general-purpose standard library or package manager. What exists today is a set of interpreted built-in numerical operations, source-language output statements, and a Rust embedding API. They are not interchangeable.
Newer released alpha.2 built-ins
v0.0.5-alpha.2, published November 2, adds immutable integer collections with operations such as ints_range, ints_window, ints_set, ints_join, ints_to_vector; explicit checked to_float and to_integer conversions; seven Unicode text queries; numerical variance, stddev, relu, sigmoid and tanh; and additional score/loss utilities. The compiler-verified alpha.2 tutorial exercises these capabilities using real published programs. This section does not backport them into the alpha.1 table below, nor claim a full package system.
Built-in numerical operations
The following names appear in the compiler's current references and example fixtures. These are not a promise of a complete scientific-computing library; verify signatures and error behavior in the linked sources before use.
| Area | Shipped examples |
|---|---|
| Vector construction and inspection | len, fill, checked values[index] |
| Elementwise vector work | scale, clamp |
| Reductions and products | sum, mean, dot, mse |
| Classification/numerical helpers | softmax, argmax, onehot |
| Tiles and matrices | tile, height, width, cell, lane, unroll, turn, matvec, matmul, tileadd, tilescale |
bind values = [1.0, 2.0, 3.0, 4.0];
print(sum(values), mean(values));
print(dot(values, [2.0, -1.0, 0.5, 2.0]));
Additional numerical kernels include specialized vector window, norm, log-space, and loss operations. For signatures, input validation, finite-result rules and exact support, refer to the compiler's vector and tile references. These functions are intentionally not described as generic collections or a package API.
Output statements
print, println, write, eprint, and ewrite are language statements, not imported library functions. See output.
Rust embedding API
See the practical Rust embedding reference for the host API boundaries and code examples.
Scarp's host library, implemented in Rust, exposes lexer, parser, resolution, compile and interpreter operations. For example:
let mut output = Vec::new();
scarp::run(r#"print("Hello from Scarp!");"#, &mut output).unwrap();
assert_eq!(output, b"Hello from Scarp!\n");
Multiple-file programs require explicit modules::compile_file or an in-memory loader API; source-only entry points do not automatically resolve filesystem imports. This is a Rust API and cannot be imported as a Scarp source module.
Verified against: compiler README, embedding reference.