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add exception error prelude.

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This commit is contained in:
Mark Thom
2017-08-18 12:44:04 -06:00
parent 02c0f1cf56
commit 502f498114
1 changed files with 1 additions and 1 deletions
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src/prolog/io.rs
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@@ -404,7 +404,7 @@ Each predicate must have the same name and arity.";
} }
fn error_string(e: &String) -> String { fn error_string(e: &String) -> String {
format!("error: {}", e) format!("error: exception thrown: {}", e)
} }
pub fn print(wam: &mut Machine, result: EvalSession) { pub fn print(wam: &mut Machine, result: EvalSession) {