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fei::impl_utils Namespace Reference


void find_offsets (const std::vector< int > &sources, const std::vector< int > &targets, std::vector< int > &offsets)
void unpack_FillableMat (const char *buffer_begin, const char *buffer_end, fei::FillableMat &mat, bool clear_mat_on_entry, bool overwrite_entries)
bool unpack_CSRMat (const char *buffer_begin, const char *buffer_end, fei::CSRMat &mat)

Detailed Description

The impl_utils namespace contains implementation-utilities. Helpers for implementation code, not part of the public API.

Function Documentation

void fei::impl_utils::find_offsets ( const std::vector< int > &  sources,
const std::vector< int > &  targets,
std::vector< int > &  offsets 

Given a vector of sources and a vector of targets, fill the offsets vector such that if offsets[i] >= 0, then sources[i] == targets[offsets[i]]. For any i such that sources[i] is not found in targets, then offsets[i] == -1. The offsets vector will have length equal to the length of sources.

For efficiency, it is assumed that both sources and targets are sorted.

Definition at line 23 of file fei_impl_utils.cpp.

void fei::impl_utils::unpack_FillableMat ( const char *  data_begin,
const char *  data_end,
fei::FillableMat &  mat,
bool  clear_mat_on_entry = true,
bool  overwrite_entries = true 

unpack a pair of std::vector objects into an fei::FillableMat object. The std::vector objects are assumed to have been produced by the function pack_FillableMat(...).

Definition at line 105 of file fei_impl_utils.cpp.

bool fei::impl_utils::unpack_CSRMat ( const char *  buffer_begin,
const char *  buffer_end,
fei::CSRMat mat 

return-value is true if the unpacked matrix contains nothing but zeros...

Definition at line 153 of file fei_impl_utils.cpp.

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