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sprinkle a number of noexcepts into the code

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This commit is contained in:
Dennis Luxen 2015-04-02 11:36:04 +02:00
parent 9a61f8b894
commit c2deedac8b
10 changed files with 36 additions and 31 deletions
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2
util/bearing.cpp
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@ -27,7 +27,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "bearing.hpp"
std::string bearing::get(const double heading)
std::string bearing::get(const double heading) noexcept
{
if (heading <= 22.5)
{

2
util/bearing.hpp
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@ -32,7 +32,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
struct bearing
{
static std::string get(const double heading);
static std::string get(const double heading) noexcept;
};
#endif // BEARING_HPP

2
util/cast.hpp
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@ -109,7 +109,7 @@ struct cast
}
// source: http://tinodidriksen.com/2011/05/28/cpp-convert-string-to-double-speed/
static double string_to_double(const char *p)
static double string_to_double(const char *p) noexcept
{
double r = 0.0;
bool neg = false;

2
util/compute_angle.cpp
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@ -36,7 +36,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
double ComputeAngle::OfThreeFixedPointCoordinates(const FixedPointCoordinate &first,
const FixedPointCoordinate &second,
const FixedPointCoordinate &third)
const FixedPointCoordinate &third) noexcept
{
const double v1x = (first.lon - second.lon) / COORDINATE_PRECISION;
const double v1y = mercator::lat2y(first.lat / COORDINATE_PRECISION) -

2
util/compute_angle.hpp
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@ -36,7 +36,7 @@ struct ComputeAngle
// atan2 magic, formerly cosine theorem
static double OfThreeFixedPointCoordinates(const FixedPointCoordinate &first,
const FixedPointCoordinate &second,
const FixedPointCoordinate &third);
const FixedPointCoordinate &third) noexcept;
};
#endif // COMPUTE_ANGLE_HPP

11
util/container.hpp
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@ -37,16 +37,17 @@ namespace osrm
namespace detail
{
// Culled by SFINAE if reserve does not exist or is not accessible
template <typename T> constexpr auto has_resize_method(T &t) -> decltype(t.resize(0), bool())
template <typename T>
constexpr auto has_resize_method(T &t) noexcept -> decltype(t.resize(0), bool())
{
return true;
}
// Used as fallback when SFINAE culls the template method
constexpr bool has_resize_method(...) { return false; }
constexpr bool has_resize_method(...) noexcept { return false; }
}
template <typename Container> void sort_unique_resize(Container &vector)
template <typename Container> void sort_unique_resize(Container &vector) noexcept
{
std::sort(std::begin(vector), std::end(vector));
const auto number_of_unique_elements =
@ -72,7 +73,9 @@ template <typename Container> void sort_unique_resize(Container &vector)
// }
template <typename ForwardIterator, typename Function>
Function for_each_pair(ForwardIterator begin, ForwardIterator end, Function function)
Function for_each_pair(ForwardIterator begin,
ForwardIterator end,
Function function) noexcept(noexcept(function))
{
if (begin == end)
{

25
util/integer_range.hpp
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@ -40,29 +40,30 @@ template <typename Integer> class range
Integer iter;
public:
range(Integer start, Integer end) : last(end), iter(start)
range(Integer start, Integer end) noexcept : last(end), iter(start)
{
static_assert(std::is_integral<Integer>::value, "range type must be integral");
}
// Iterable functions
const range &begin() const { return *this; }
const range &end() const { return *this; }
Integer front() const { return iter; }
Integer back() const { return last - 1; }
Integer size() const { return last - iter; }
const range &begin() const noexcept { return *this; }
const range &end() const noexcept { return *this; }
Integer front() const noexcept { return iter; }
Integer back() const noexcept { return last - 1; }
Integer size() const noexcept { return last - iter; }
// Iterator functions
bool operator!=(const range &) const { return iter < last; }
void operator++() { ++iter; }
Integer operator*() const { return iter; }
bool operator!=(const range &) const noexcept { return iter < last; }
void operator++() noexcept { ++iter; }
Integer operator*() const noexcept { return iter; }
};
// convenience function to construct an integer range with type deduction
template <typename Integer>
range<Integer> irange(const Integer first,
const Integer last,
typename std::enable_if<std::is_integral<Integer>::value>::type * = 0)
range<Integer>
irange(const Integer first,
const Integer last,
typename std::enable_if<std::is_integral<Integer>::value>::type * = 0) noexcept
{
return range<Integer>(first, last);
}

13
util/iterator_range.hpp
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@ -33,10 +33,10 @@ namespace osrm
template <typename Iterator> class iter_range
{
public:
iter_range(Iterator begin, Iterator end) : begin_(begin), end_(end) {}
iter_range(Iterator begin, Iterator end) noexcept : begin_(begin), end_(end) {}
Iterator begin() const { return begin_; }
Iterator end() const { return end_; }
Iterator begin() const noexcept { return begin_; }
Iterator end() const noexcept { return end_; }
private:
Iterator begin_;
@ -46,13 +46,14 @@ template <typename Iterator> class iter_range
// Convenience functions for template parameter inference,
// akin to std::make_pair.
template <typename Iterator> iter_range<Iterator> integer_range(Iterator begin, Iterator end)
template <typename Iterator>
iter_range<Iterator> integer_range(Iterator begin, Iterator end) noexcept
{
return iter_range<Iterator>(begin, end);
}
template <typename Reversable>
iter_range<typename Reversable::reverse_iterator> reverse(Reversable *reversable)
iter_range<typename Reversable::reverse_iterator> reverse(Reversable *reversable) noexcept
{
return iter_range<typename Reversable::reverse_iterator>(reversable->rbegin(),
reversable->rend());
@ -60,7 +61,7 @@ iter_range<typename Reversable::reverse_iterator> reverse(Reversable *reversable
template <typename ConstReversable>
iter_range<typename ConstReversable::const_reverse_iterator>
const_reverse(const ConstReversable *const_reversable)
const_reverse(const ConstReversable *const_reversable) noexcept
{
return iter_range<typename ConstReversable::const_reverse_iterator>(const_reversable->crbegin(),
const_reversable->crend());

4
util/mercator.cpp
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@ -29,12 +29,12 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <cmath>
double mercator::y2lat(const double value)
double mercator::y2lat(const double value) noexcept
{
return 180. * M_1_PI * (2. * std::atan(std::exp(value * M_PI / 180.)) - M_PI_2);
}
double mercator::lat2y(const double latitude)
double mercator::lat2y(const double latitude) noexcept
{
return 180. * M_1_PI * std::log(std::tan(M_PI_4 + latitude * (M_PI / 180.) / 2.));
}

4
util/mercator.hpp
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@ -30,9 +30,9 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
struct mercator
{
static double y2lat(const double value);
static double y2lat(const double value) noexcept;
static double lat2y(const double latitude);
static double lat2y(const double latitude) noexcept;
};
#endif // MERCATOR_HPP