linesearch.h

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#ifndef LINESEARCH_H
#define LINESEARCH_H

#include "types.h"
#include "constants.h"


c_float exact_linesearch(QPALMWorkspace *work, solver_common *c);

void vec_array_copy(c_float       *a, 
                    array_element *b, 
                    size_t         n);

void select_subsequence(const array_element *a, 
                        array_element       *b,
                        const c_int         *L,
                        size_t               n);

c_float vec_prod_ind(const c_float *a,
                     const c_float *b,
                     const c_int   *L,
                     size_t         n);

int compare (const void * a, 
             const void * b);

#endif