XLPack 7.0
XLPack Numerical Library (C API) Reference Manual
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◆ csx_sort()

void csx_sort ( int  n,
double  val[],
const int  ptr[],
int  ind[],
int  base,
int *  info 
)

Sort elements of sparse matrix (CSC/CSR)

Purpose
This function sorts the elements of sparse matrix in CSC or CSR format within each column (if CSC) or row (if CSR).
Parameters
[in]nNumber of columns (if CSC) or rows (if CSR) of the matrix. (n >= 0) (if n = 0, returns without computation)
[in,out]val[]Array val[lval] (lval >= nnz)
Values of nonzero elements of input matrix (where nnz is the number of nonzero elements).
[in]ptr[]Array ptr[lptr] (lptr >= n + 1)
Column pointers (if CSC) or row pointers (if CSR) of input matrix.
[in,out]ind[]Array ind[lind] (lind >= nnz)
Row indices (if CSC) or column indices (if CSR) of input matrix (where nnz is the number of nonzero elements).
[in]baseIndexing of ptr[] and ind[].
= 0: Zero-based (C style) indexing: Starting index is 0.
= 1: One-based (Fortran style) indexing: Starting index is 1.
[out]info= 0: Successful exit.
= i < 0: The (-i)-th argument is invalid.
= 10: Algorithm failed due to insufficient stack area.