Use alloc for no_std builds

[rust-lightning] / lightning / src / util / transaction_utils.rs

diff --git a/lightning/src/util/transaction_utils.rs b/lightning/src/util/transaction_utils.rs
index 34d0fb275764a339ce13c9b50bef0eaebda43683..5c02fe156aaeffad0355c9f95aaafc3fbba26c88 100644 (file)
--- a/lightning/src/util/transaction_utils.rs
+++ b/lightning/src/util/transaction_utils.rs
@@ -14,6 +14,7 @@ use bitcoin::consensus::encode::VarInt;
 
 use ln::msgs::MAX_VALUE_MSAT;
 
+use prelude::*;
 use core::cmp::Ordering;
 
 pub fn sort_outputs<T, C : Fn(&T, &T) -> Ordering>(outputs: &mut Vec<(TxOut, T)>, tie_breaker: C) {
@@ -83,6 +84,8 @@ mod tests {
 
        use hex::decode;
 
+       use alloc::vec;
+
        #[test]
        fn sort_output_by_value() {
                let txout1 = TxOut {