bes::Collection Namespace Reference

Classes
struct	bes::Collection::DeleteArray
struct	bes::Collection::DeleteObject
struct	bes::Collection::PtrLess
Functions
template<class C, class T>
C::difference_type	findIndex (const C &container, const T &value)

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Function Documentation

template<class C, class T> C::difference_type bes::Collection::findIndex (  const C &  container, const T &  value )

Determines the offset of the first occurrence of a specified value in a container. This is _not_ an STL-ish way to work; the use of std::find() and iterators instead of offsets is _strongly_ preferred, even for vectors. This function is supplied only as a migration aid for previous users of the Rogue Wave vector classes. It is valid for any container type C for whose iterators operator- is defined. When a restriction in the STL supplied by RW for Sun is removed in the future (see below), it could be rewritten to work for all containers. { typename C::const_iterator found = std::find( container.begin(), container.end(), value ); // Were std::distance available, one would write: FIXME // Meanwhile, this should only compile for iterators for which it is efficient: return found - container.begin(); }

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