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Add helpers for validating ranges #124

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merged 2 commits into from
Nov 7, 2024
Merged

Add helpers for validating ranges #124

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808aeea
Add helpers for validating ranges
richfitz Nov 6, 2024
0caeec1
Fix helpers
richfitz Nov 7, 2024
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9 changes: 9 additions & 0 deletions inst/include/dust2/common.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -55,6 +55,15 @@ void read_dimensions(cpp11::list args, const char * name, dust2::array::dimensio
template <>
void read_dimensions(cpp11::list args, const char * name, dust2::array::dimensions<1>& dest);

template <typename T>
void check_min_array(const std::vector<T>& x, const T min, const char * name);
template <typename T>
void check_max_array(const std::vector<T>& x, const T min, const char * name);
template <typename T>
void check_min_scalar(const T x, const T min, const char * name);
template <typename T>
void check_max_scalar(const T x, const T min, const char * name);

}

}
40 changes: 40 additions & 0 deletions inst/include/dust2/r/helpers.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -582,6 +582,46 @@ void read_int_array(cpp11::list args, const dust2::array::dimensions<rank>& dim,
}
}

template <typename T>
void check_min_array(const std::vector<T>& x, const T min, const char * name) {
for (size_t i = 0; i < x.size(); ++i) {
if (x[i] < min) {
const auto min_str = std::to_string(min);
cpp11::stop("All values of '%s' must be at least %s",
name, min_str.c_str());
}
}
}

template <typename T>
void check_max_array(const std::vector<T>& x, const T max, const char * name) {
for (size_t i = 0; i < x.size(); ++i) {
if (x[i] > max) {
const auto max_str = std::to_string(max);
cpp11::stop("All values of '%s' must be at most %s",
name, max_str.c_str());
}
}
}

template <typename T>
void check_min_scalar(const T x, const T min, const char * name) {
if (x < min) {
const auto min_str = std::to_string(min);
cpp11::stop("'%s' must be at least %s",
name, min_str.c_str());
}
}

template <typename T>
void check_max_scalar(const T x, const T max, const char * name) {
if (x > max) {
const auto max_str = std::to_string(max);
cpp11::stop("'%s' must be at most %s",
name, max_str.c_str());
}
}

inline cpp11::sexp packing_to_r(const dust2::packing& packing_info) {
if (packing_info.size() == 0) {
return R_NilValue;
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