vyre 0.4.0

GPU compute intermediate representation with a standard operation library
Documentation 
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// Substring contains operation module.



// Backend-specific lowering marker.



// CPU reference kernel for `string_matching.substring_contains`.

use crate::ops::string_matching::search_contract::{validate_search_inputs, MatchError};

/// Return true when `needle` appears in `haystack`.
///
/// # Errors
///
/// Returns `Fix: ...` when either input exceeds the documented T47 cap.
pub fn substring_contains(haystack: &[u8], needle: &[u8]) -> Result<bool, MatchError> {
    validate_search_inputs(haystack, needle)?;
    if needle.is_empty() {
        return Ok(true);
    }
    Ok(haystack.windows(needle.len()).any(|window| window == needle))
}