1 files changed, 4 insertions, 4 deletions
diff --git a/src/math/numbertheory/dsa_gen.cpp b/src/math/numbertheory/dsa_gen.cpp
index 670f103da..612370804 100644
--- a/src/math/numbertheory/dsa_gen.cpp
+++ b/src/math/numbertheory/dsa_gen.cpp
@@ -47,15 +47,15 @@ bool generate_dsa_primes(RandomNumberGenerator& rng,
    if(!fips186_3_valid_size(pbits, qbits))
       throw Invalid_Argument(
          "FIPS 186-3 does not allow DSA domain parameters of " +
-         to_string(pbits) + "/" + to_string(qbits) + " bits long");
+         std::to_string(pbits) + "/" + std::to_string(qbits) + " bits long");
 
    if(seed_c.size() * 8 < qbits)
       throw Invalid_Argument(
-         "Generating a DSA parameter set with a " + to_string(qbits) +
+         "Generating a DSA parameter set with a " + std::to_string(qbits) +
          "long q requires a seed at least as many bits long");
 
-   std::auto_ptr<HashFunction> hash(
-      af.make_hash_function("SHA-" + to_string(qbits)));
+   std::unique_ptr<HashFunction> hash(
+      af.make_hash_function("SHA-" + std::to_string(qbits)));
 
    const size_t HASH_SIZE = hash->output_length();