| 1 | #ifndef __MATIO_H |
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| 2 | #define __MATIO_H |
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| 3 | #include <stdio.h> |
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| 4 | #include <stdlib.h> |
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| 5 | #include <cstring> |
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| 6 | // Reading and writing matrices over double |
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| 7 | |
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| 8 | // Reading a matrice from a (eventually zipped) file |
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| 9 | double * read_dbl(char * mat_file,int* tni,int* tnj) { |
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| 10 | char *UT; |
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| 11 | int is_gzipped = 0; |
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| 12 | size_t s = strlen(mat_file); |
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| 13 | double* X=NULL; |
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| 14 | const char * File_Name = mat_file; |
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| 15 | |
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| 16 | FILE* FileDes = fopen(File_Name, "r"); |
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| 17 | if (FileDes != NULL) { |
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| 18 | char * tmp = new char[200];// usigned long tni, tnj; |
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| 19 | fscanf(FileDes,"%d %d %s\n",tni, tnj, tmp) ; |
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| 20 | int n=*tni; |
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| 21 | int p=*tnj; |
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| 22 | X = new double[n*p]; |
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| 23 | for (int i=0;i<n*p;++i) |
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| 24 | X[i] = (double) 0; |
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| 25 | long i,j; long val; |
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| 26 | fscanf(FileDes,"%ld %ld %ld\n",&i, &j, &val) ; |
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| 27 | while(i && j) { |
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| 28 | X[p*(i-1)+j-1] = (double) val; |
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| 29 | fscanf(FileDes,"%ld %ld %ld\n",&i, &j, &val) ; |
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| 30 | } |
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| 31 | } |
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| 32 | |
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| 33 | fclose(FileDes); |
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| 34 | return X; |
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| 35 | } |
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| 36 | |
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| 37 | // Displays a matrix |
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| 38 | std::ostream& write_dbl(std::ostream& c, |
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| 39 | double* E, |
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| 40 | int n, int m, int id){ |
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| 41 | |
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| 42 | for (int i = 0; i<n;++i){ |
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| 43 | for (int j=0; j<m;++j) |
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| 44 | c << *(E+j+id*i) << " "; |
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| 45 | c << std::endl; |
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| 46 | } |
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| 47 | return c << std::endl; |
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| 48 | } |
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| 49 | |
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| 50 | // Reading and writing matrices over field |
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| 51 | |
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| 52 | // Reading a matrice from a (eventually zipped) file |
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| 53 | template<class Field> |
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| 54 | typename Field::Element * read_field(const Field& F,char * mat_file,int* tni,int* tnj) |
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| 55 | { |
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| 56 | char *UT; |
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| 57 | int is_gzipped = 0; |
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| 58 | size_t s = strlen(mat_file); |
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| 59 | typename Field::Element zero; |
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| 60 | F.init(zero,0.0); |
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| 61 | typename Field::Element * X=NULL; |
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| 62 | const char * File_Name = mat_file; |
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| 63 | FILE* FileDes = fopen(File_Name, "r"); |
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| 64 | if (FileDes != NULL) { |
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| 65 | char tmp[200];// usigned long tni, tnj; |
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| 66 | fscanf(FileDes,"%d %d %s\n",tni, tnj, tmp) ; |
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| 67 | |
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| 68 | int n=*tni; |
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| 69 | int p=*tnj; |
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| 70 | X = new typename Field::Element[n*p]; |
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| 71 | for (int i=0;i<n*p;++i) |
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| 72 | X[i] = zero; |
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| 73 | long i,j; long val; |
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| 74 | fscanf(FileDes,"%ld %ld %ld\n",&i, &j, &val) ; |
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| 75 | while(i && j) { |
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| 76 | F.init(X[p*(i-1)+j-1],double(val)); |
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| 77 | fscanf(FileDes,"%ld %ld %ld\n",&i, &j, &val) ; |
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| 78 | } |
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| 79 | } |
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| 80 | |
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| 81 | fclose(FileDes); |
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| 82 | return X; |
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| 83 | } |
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| 84 | |
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| 85 | // Displays a matrix |
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| 86 | template<class Field> |
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| 87 | std::ostream& write_field(const Field& F,std::ostream& c, |
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| 88 | const typename Field::Element* E, |
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| 89 | int n, int m, int id){ |
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| 90 | |
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| 91 | typename Field::Element tmp; |
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| 92 | //#if DEBUG |
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| 93 | for (int i = 0; i<n;++i){ |
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| 94 | for (int j=0; j<m;++j){ |
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| 95 | F.convert(tmp,*(E+j+id*i)); |
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| 96 | c << tmp << " ";} |
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| 97 | c << std::endl; |
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| 98 | } |
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| 99 | return c << std::endl; |
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| 100 | //#endif |
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| 101 | } |
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| 102 | #endif |
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