foo.cc: In member function 'void ComplexArray::mysort()':
foo.cc:79:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Complex>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
79 | for (int i = 0; i < Cs.size() - 1; i++)
| ~~^~~~~~~~~~~~~~~
foo.cc:81:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Complex>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
81 | for (int j = 0; j < Cs.size() - 1 - i; j++)
| ~~^~~~~~~~~~~~~~~~~~~
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