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Fix tokenize implementation in Swift #4321

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Merged
merged 1 commit into from
Dec 4, 2023
Merged

Fix tokenize implementation in Swift #4321

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5 changes: 3 additions & 2 deletions examples/batched.swift/Sources/main.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -215,9 +215,10 @@ print("decoded \(n_decode) tokens in \(String(format: "%.2f", Double(t_main_end
llama_print_timings(context)

private func tokenize(text: String, add_bos: Bool) -> [llama_token] {
let n_tokens = text.count + (add_bos ? 1 : 0)
let utf8Count = text.utf8.count
let n_tokens = utf8Count + (add_bos ? 1 : 0)
let tokens = UnsafeMutablePointer<llama_token>.allocate(capacity: n_tokens)
let tokenCount = llama_tokenize(model, text, Int32(text.count), tokens, Int32(n_tokens), add_bos, /*special tokens*/ false)
let tokenCount = llama_tokenize(model, text, Int32(utf8Count), tokens, Int32(n_tokens), add_bos, /*special tokens*/ false)
var swiftTokens: [llama_token] = []
for i in 0 ..< tokenCount {
swiftTokens.append(tokens[Int(i)])
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5 changes: 3 additions & 2 deletions examples/llama.swiftui/llama.cpp.swift/LibLlama.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -147,9 +147,10 @@ actor LlamaContext {
}

private func tokenize(text: String, add_bos: Bool) -> [llama_token] {
let n_tokens = text.count + (add_bos ? 1 : 0)
let utf8Count = text.utf8.count
let n_tokens = utf8Count + (add_bos ? 1 : 0)
let tokens = UnsafeMutablePointer<llama_token>.allocate(capacity: n_tokens)
let tokenCount = llama_tokenize(model, text, Int32(text.count), tokens, Int32(n_tokens), add_bos, false)
let tokenCount = llama_tokenize(model, text, Int32(utf8Count), tokens, Int32(n_tokens), add_bos, false)

var swiftTokens: [llama_token] = []
for i in 0..<tokenCount {
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