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/*
* Matrix Market I/O library for ANSI C
*
* See http://math.nist.gov/MatrixMarket for details.
*
*
*/
#ifndef MM_IO_H
#define MM_IO_H
#define MM_MAX_LINE_LENGTH 1025
#define MatrixMarketBanner "%%MatrixMarket"
#define MM_MAX_TOKEN_LENGTH 64
typedef char MM_typecode[4];
char *mm_typecode_to_str(MM_typecode matcode);
int mm_read_banner(FILE *f, MM_typecode *matcode);
int mm_read_mtx_crd_size(FILE *f, int *M, int *N, int *nz);
int mm_read_mtx_array_size(FILE *f, int *M, int *N);
int mm_write_banner(FILE *f, MM_typecode matcode);
int mm_write_mtx_crd_size(FILE *f, int M, int N, int nz);
int mm_write_mtx_array_size(FILE *f, int M, int N);
/********************* MM_typecode query fucntions ***************************/
#define mm_is_matrix(typecode) ((typecode)[0]=='M')
#define mm_is_sparse(typecode) ((typecode)[1]=='C')
#define mm_is_coordinate(typecode)((typecode)[1]=='C')
#define mm_is_dense(typecode) ((typecode)[1]=='A')
#define mm_is_array(typecode) ((typecode)[1]=='A')
#define mm_is_complex(typecode) ((typecode)[2]=='C')
#define mm_is_real(typecode) ((typecode)[2]=='R')
#define mm_is_pattern(typecode) ((typecode)[2]=='P')
#define mm_is_integer(typecode) ((typecode)[2]=='I')
#define mm_is_symmetric(typecode)((typecode)[3]=='S')
#define mm_is_general(typecode) ((typecode)[3]=='G')
#define mm_is_skew(typecode) ((typecode)[3]=='K')
#define mm_is_hermitian(typecode)((typecode)[3]=='H')
int mm_is_valid(MM_typecode matcode); /* too complex for a macro */
/********************* MM_typecode modify fucntions ***************************/
#define mm_set_matrix(typecode) ((*typecode)[0]='M')
#define mm_set_coordinate(typecode) ((*typecode)[1]='C')
#define mm_set_array(typecode) ((*typecode)[1]='A')
#define mm_set_dense(typecode) mm_set_array(typecode)
#define mm_set_sparse(typecode) mm_set_coordinate(typecode)
#define mm_set_complex(typecode)((*typecode)[2]='C')
#define mm_set_real(typecode) ((*typecode)[2]='R')
#define mm_set_pattern(typecode)((*typecode)[2]='P')
#define mm_set_integer(typecode)((*typecode)[2]='I')
#define mm_set_symmetric(typecode)((*typecode)[3]='S')
#define mm_set_general(typecode)((*typecode)[3]='G')
#define mm_set_skew(typecode) ((*typecode)[3]='K')
#define mm_set_hermitian(typecode)((*typecode)[3]='H')
#define mm_clear_typecode(typecode) ((*typecode)[0]=(*typecode)[1]= \
(*typecode)[2]=' ',(*typecode)[3]='G')
#define mm_initialize_typecode(typecode) mm_clear_typecode(typecode)
/********************* Matrix Market error codes ***************************/
#define MM_COULD_NOT_READ_FILE 11
#define MM_PREMATURE_EOF 12
#define MM_NOT_MTX 13
#define MM_NO_HEADER 14
#define MM_UNSUPPORTED_TYPE 15
#define MM_LINE_TOO_LONG 16
#define MM_COULD_NOT_WRITE_FILE 17
/******************** Matrix Market internal definitions ********************
MM_matrix_typecode: 4-character sequence
ojbect sparse/ data storage
dense type scheme
string position: [0] [1] [2] [3]
Matrix typecode: M(atrix) C(oord) R(eal) G(eneral)
A(array) C(omplex) H(ermitian)
P(attern) S(ymmetric)
I(nteger) K(kew)
***********************************************************************/
#define MM_MTX_STR "matrix"
#define MM_ARRAY_STR "array"
#define MM_DENSE_STR "array"
#define MM_COORDINATE_STR "coordinate"
#define MM_SPARSE_STR "coordinate"
#define MM_COMPLEX_STR "complex"
#define MM_REAL_STR "real"
#define MM_INT_STR "integer"
#define MM_GENERAL_STR "general"
#define MM_SYMM_STR "symmetric"
#define MM_HERM_STR "hermitian"
#define MM_SKEW_STR "skew-symmetric"
#define MM_PATTERN_STR "pattern"
/* high level routines */
int mm_write_mtx_crd(char fname[], int M, int N, int nz, int I[], int J[],
double val[], MM_typecode matcode);
int mm_read_mtx_crd_data(FILE *f, int M, int N, int nz, int I[], int J[],
double val[], MM_typecode matcode);
int mm_read_mtx_crd_entry(FILE *f, int *I, int *J, double *real, double *img,
MM_typecode matcode);
int mm_read_unsymmetric_sparse(const char *fname, int *M_, int *N_, int *nz_,
double **val_, int **I_, int **J_);
#endif