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mmio.h
1 /*
2 * Matrix Market I/O library for ANSI C
3 *
4 * See http://math.nist.gov/MatrixMarket for details.
5 *
6 *
7 */
8
9 #ifndef MM_IO_H
10 #define MM_IO_H
11
12 #define MM_MAX_LINE_LENGTH 1025
13 #define MatrixMarketBanner "%%MatrixMarket"
14 #define MM_MAX_TOKEN_LENGTH 64
15
16 typedef char MM_typecode[4];
17
18 char *mm_typecode_to_str(MM_typecode matcode);
19
20 int mm_read_banner(FILE *f, MM_typecode *matcode);
21 int mm_read_mtx_crd_size(FILE *f, int *M, int *N, int *nz);
22 int mm_read_mtx_array_size(FILE *f, int *M, int *N);
23
24 int mm_write_banner(FILE *f, MM_typecode matcode);
25 int mm_write_mtx_crd_size(FILE *f, int M, int N, int nz);
26 int mm_write_mtx_array_size(FILE *f, int M, int N);
27
28
29 /********************* MM_typecode query fucntions ***************************/
30
31 #define mm_is_matrix(typecode) ((typecode)[0]=='M')
32
33 #define mm_is_sparse(typecode) ((typecode)[1]=='C')
34 #define mm_is_coordinate(typecode)((typecode)[1]=='C')
35 #define mm_is_dense(typecode) ((typecode)[1]=='A')
36 #define mm_is_array(typecode) ((typecode)[1]=='A')
37
38 #define mm_is_complex(typecode) ((typecode)[2]=='C')
39 #define mm_is_real(typecode) ((typecode)[2]=='R')
40 #define mm_is_pattern(typecode) ((typecode)[2]=='P')
41 #define mm_is_integer(typecode) ((typecode)[2]=='I')
42
43 #define mm_is_symmetric(typecode)((typecode)[3]=='S')
44 #define mm_is_general(typecode) ((typecode)[3]=='G')
45 #define mm_is_skew(typecode) ((typecode)[3]=='K')
46 #define mm_is_hermitian(typecode)((typecode)[3]=='H')
47
48 int mm_is_valid(MM_typecode matcode); /* too complex for a macro */
49
50
51 /********************* MM_typecode modify fucntions ***************************/
52
53 #define mm_set_matrix(typecode) ((*typecode)[0]='M')
54 #define mm_set_coordinate(typecode) ((*typecode)[1]='C')
55 #define mm_set_array(typecode) ((*typecode)[1]='A')
56 #define mm_set_dense(typecode) mm_set_array(typecode)
57 #define mm_set_sparse(typecode) mm_set_coordinate(typecode)
58
59 #define mm_set_complex(typecode)((*typecode)[2]='C')
60 #define mm_set_real(typecode) ((*typecode)[2]='R')
61 #define mm_set_pattern(typecode)((*typecode)[2]='P')
62 #define mm_set_integer(typecode)((*typecode)[2]='I')
63
64
65 #define mm_set_symmetric(typecode)((*typecode)[3]='S')
66 #define mm_set_general(typecode)((*typecode)[3]='G')
67 #define mm_set_skew(typecode) ((*typecode)[3]='K')
68 #define mm_set_hermitian(typecode)((*typecode)[3]='H')
69
70 #define mm_clear_typecode(typecode) ((*typecode)[0]=(*typecode)[1]= \
71 (*typecode)[2]=' ',(*typecode)[3]='G')
72
73 #define mm_initialize_typecode(typecode) mm_clear_typecode(typecode)
74
75
76 /********************* Matrix Market error codes ***************************/
77
78
79 #define MM_COULD_NOT_READ_FILE 11
80 #define MM_PREMATURE_EOF 12
81 #define MM_NOT_MTX 13
82 #define MM_NO_HEADER 14
83 #define MM_UNSUPPORTED_TYPE 15
84 #define MM_LINE_TOO_LONG 16
85 #define MM_COULD_NOT_WRITE_FILE 17
86
87
88 /******************** Matrix Market internal definitions ********************
89
90 MM_matrix_typecode: 4-character sequence
91
92 ojbect sparse/ data storage
93 dense type scheme
94
95 string position: [0] [1] [2] [3]
96
97 Matrix typecode: M(atrix) C(oord) R(eal) G(eneral)
98 A(array) C(omplex) H(ermitian)
99 P(attern) S(ymmetric)
100 I(nteger) K(kew)
101
102 ***********************************************************************/
103
104 #define MM_MTX_STR "matrix"
105 #define MM_ARRAY_STR "array"
106 #define MM_DENSE_STR "array"
107 #define MM_COORDINATE_STR "coordinate"
108 #define MM_SPARSE_STR "coordinate"
109 #define MM_COMPLEX_STR "complex"
110 #define MM_REAL_STR "real"
111 #define MM_INT_STR "integer"
112 #define MM_GENERAL_STR "general"
113 #define MM_SYMM_STR "symmetric"
114 #define MM_HERM_STR "hermitian"
115 #define MM_SKEW_STR "skew-symmetric"
116 #define MM_PATTERN_STR "pattern"
117
118
119 /* high level routines */
120
121 int mm_write_mtx_crd(char fname[], int M, int N, int nz, int I[], int J[],
122 double val[], MM_typecode matcode);
123 int mm_read_mtx_crd_data(FILE *f, int M, int N, int nz, int I[], int J[],
124 double val[], MM_typecode matcode);
125 int mm_read_mtx_crd_entry(FILE *f, int *I, int *J, double *real, double *img,
126 MM_typecode matcode);
127
128 int mm_read_unsymmetric_sparse(const char *fname, int *M_, int *N_, int *nz_,
129 double **val_, int **I_, int **J_);
130
131
132
133 #endif