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[configuration] Allow multiplication by negative numbers
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In SOCC, final solutions are linear combinations of particular solutions
with not necessarily positive coefficients.
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krivenko committed Mar 17, 2022
1 parent 0b0e434 commit 6cb1e31
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Showing 2 changed files with 0 additions and 6 deletions.
3 changes: 0 additions & 3 deletions c++/som/configuration.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -115,9 +115,6 @@ configuration configuration::operator+(configuration const& c) const {
}

configuration& configuration::operator*=(double alpha) {
if(alpha < 0)
TRIQS_RUNTIME_ERROR
<< "Cannot multiply a configuration by a negative number " << alpha;
std::transform(rects.begin(), rects.end(), rects.begin(),
[&](rectangle const& r) { return r * alpha; });
cache_ptr.invalidate_entry();
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3 changes: 0 additions & 3 deletions test/c++/configuration.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -64,9 +64,6 @@ TEST(configuration, Detached) {
TEST(configuration, Arithmetics) {
EXPECT_PRINT(conf1_str + "," + conf2_str, conf1 + conf2);

EXPECT_THROW(-2.0 * conf1, triqs::runtime_error);
EXPECT_THROW(conf1 * (-2.0), triqs::runtime_error);

EXPECT_PRINT("(c:-2, w:2.6, h:0.6),(c:1.3, w:2.6, h:1.2),(c:2, w:2.6, h:1.4)",
2.0 * conf1);
EXPECT_PRINT(
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