LSSTApplications  18.1.0
LSSTDataManagementBasePackage
PermMap.cc
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22 #include <memory>
23 #include <algorithm> // for std::max
24 #include <sstream>
25 #include <stdexcept>
26 
27 #include "astshim/base.h"
28 #include "astshim/Mapping.h"
29 #include "astshim/PermMap.h"
30 
31 namespace {
32 
40 void checkConstant(int numConst, std::vector<int> const& perm, std::string const& name) {
41  int maxConst = 0;
42  for (int const& innum : perm) {
43  maxConst = std::max(maxConst, -innum);
44  }
45  if (maxConst > numConst) {
47  os << name << " specifies max constant number (min negative number) " << maxConst << ", but only "
48  << numConst << " constants are available";
49  throw std::invalid_argument(os.str());
50  }
51 }
52 
53 } // anonymous namespace
54 
55 namespace ast {
56 
57 AstPermMap* PermMap::makeRawMap(std::vector<int> const& inperm, std::vector<int> const& outperm,
58  std::vector<double> const& constant, std::string const& options) {
59  if (inperm.empty()) {
60  throw std::invalid_argument("inperm has no elements");
61  }
62  if (outperm.empty()) {
63  throw std::invalid_argument("outperm has no elements");
64  }
65  // check `constant` (since AST does not)
66  checkConstant(constant.size(), inperm, "inperm");
67  checkConstant(constant.size(), outperm, "outperm");
68 
69  double const* constptr = constant.size() > 0 ? constant.data() : nullptr;
70  auto result = astPermMap(inperm.size(), inperm.data(), outperm.size(), outperm.data(), constptr, "%s",
71  options.c_str());
72  assertOK();
73  return result;
74 }
75 
76 } // namespace ast
T empty(T... args)
AST wrapper classes and functions.
py::object result
Definition: schema.cc:418
void assertOK(AstObject *rawPtr1=nullptr, AstObject *rawPtr2=nullptr)
Throw std::runtime_error if AST&#39;s state is bad.
Definition: base.cc:49
tuple options
Definition: lsstimport.py:47
STL class.
T data(T... args)
T str(T... args)
T max(T... args)
T size(T... args)
T c_str(T... args)
std::ostream * os
Definition: Schema.cc:746