Remove to_string, replacing with std::to_string

Convert to_u32bit to use the new C++0x library func stoul instead of
hand-written code.

2 files changed, 5 insertions, 5 deletions

diff --git a/src/math/numbertheory/dsa_gen.cpp b/src/math/numbertheory/dsa_gen.cpp
index d5f6dc792..39a7cf5fa 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::unique_ptr<HashFunction> hash(
-      af.make_hash_function("SHA-" + to_string(qbits)));
+      af.make_hash_function("SHA-" + std::to_string(qbits)));
 
    const u32bit HASH_SIZE = hash->OUTPUT_LENGTH;
 
diff --git a/src/math/numbertheory/make_prm.cpp b/src/math/numbertheory/make_prm.cpp
index b136b6d25..3eb01cd42 100644
--- a/src/math/numbertheory/make_prm.cpp
+++ b/src/math/numbertheory/make_prm.cpp
@@ -20,7 +20,7 @@ BigInt random_prime(RandomNumberGenerator& rng,
    {
    if(bits <= 1)
       throw Invalid_Argument("random_prime: Can't make a prime of " +
-                             to_string(bits) + " bits");
+                             std::to_string(bits) + " bits");
    else if(bits == 2)
       return ((rng.next_byte() % 2) ? 2 : 3);
    else if(bits == 3)
@@ -85,7 +85,7 @@ BigInt random_safe_prime(RandomNumberGenerator& rng, u32bit bits)
    {
    if(bits <= 64)
       throw Invalid_Argument("random_safe_prime: Can't make a prime of " +
-                             to_string(bits) + " bits");
+                             std::to_string(bits) + " bits");
 
    BigInt p;
    do