diff options
Diffstat (limited to 'src/wolff_ising.cpp')
| -rw-r--r-- | src/wolff_ising.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/wolff_ising.cpp b/src/wolff_ising.cpp index 410e046..0c9485d 100644 --- a/src/wolff_ising.cpp +++ b/src/wolff_ising.cpp @@ -99,7 +99,7 @@ int main(int argc, char *argv[]) { gsl_rng_set(r, rand_seed()); // define spin-spin coupling - std::function <double(ising_t, ising_t)> Z = [] (ising_t s1, ising_t s2) -> double { + std::function <double(const ising_t&, const ising_t&)> Z = [] (const ising_t& s1, const ising_t& s2) -> double { if (s1.x == s2.x) { return 1.0; } else { @@ -108,7 +108,7 @@ int main(int argc, char *argv[]) { }; // define spin-field coupling - std::function <double(ising_t)> B = [=] (ising_t s) -> double { + std::function <double(const ising_t&)> B = [=] (const ising_t& s) -> double { if (s.x) { return -H; } else { |