45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
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/*
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* sparseMatrix.h
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*
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* This file contains declarations for functions in sparseMatrix.c. There may be
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* useful functions in sparseMatrix.c that are not represented here.
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*/
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#ifndef SPARSE_MATRIX_H_INCLUDED
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#define SPARSE_MATRIX_H_INCLUDED
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#include "type_sizes.h"
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/*
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* Initialize a sparse matrix. Note that the matrix is stored as a static
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* variable in sparseMatrix.c, so if a matrix is already initialized then it
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* will get clobbered if this function is called a second time.
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*/
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void createSparseMatrix(
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int_ptrsize numberOfEquations,
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int_ptrsize sparseMatrixEntrySize,
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int_ptrsize Compression,
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double Epsilon);
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/*
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* Return TRUE if i,j exists and FALSE otherwise. This function assumes that the
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* matrix has been initialized.
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*/
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int_ptrsize entryExists(
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int_ptrsize index_i,
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int_ptrsize index_j);
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/*
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* Set the i, j entry in the matrix. This function assumes that the matrix has
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* been initialized.
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*/
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void setEntry(
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int_ptrsize index_i,
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int_ptrsize index_j,
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double volContrib,
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double *value);
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void setDiagonalEntries();
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#endif /* SPARSE_MATRIX_H_INCLUDED */
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