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Fixed sqrt and implemented matrix load

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This commit is contained in:
Jakob Stornig 2023-09-19 12:51:19 +02:00
parent a8d2141d5c
commit 53553842ed
2 changed files with 32 additions and 2 deletions
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1
CMakeLists.txt
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@ -4,3 +4,4 @@ project(c_net C)
set(CMAKE_C_STANDARD 11) set(CMAKE_C_STANDARD 11)
add_executable(c_net main.c matrix.c) add_executable(c_net main.c matrix.c)
target_link_libraries(c_net m)

33
matrix.c
View file

@ -2,6 +2,7 @@
#include <stdlib.h> #include <stdlib.h>
#include <stdio.h> #include <stdio.h>
#include <math.h> #include <math.h>
#define MAX_BYTES 100
// operational functions // operational functions
Matrix* matrix_create(int rows, int columns) { Matrix* matrix_create(int rows, int columns) {
@ -252,12 +253,40 @@ void matrix_save(Matrix* matrix, char* file_string){
printf("Unable to get handle for \"%s\"", file_string); printf("Unable to get handle for \"%s\"", file_string);
exit(1); exit(1);
} }
fprintf(fptr, "%d\n", matrix->rows);
fprintf(fptr, "%d\n", matrix->columns);
for(int i = 0; i < matrix->rows; i++){ for(int i = 0; i < matrix->rows; i++){
for(int j = 0; j < matrix->columns; j++){ for(int j = 0; j < matrix->columns; j++){
fprintf(fptr, "%f.12 ", matrix->numbers[i][j]); fprintf(fptr, "%.10f\n", matrix->numbers[i][j]);
} }
fputc('\n', fptr);
} }
printf("saved matrix to %s", file_string);
fclose(fptr);
}
Matrix* matrix_load(char* file_string){
FILE *fptr = fopen(file_string, "r");
if(!fptr){
printf("Could not open \"%s\"", file_string);
exit(1);
}
char buffer[MAX_BYTES];
fgets(buffer, MAX_BYTES, fptr);
int rows = (int)strtol(buffer, NULL, 10);
fgets(buffer, MAX_BYTES, fptr);
int cols = (int)strtol(buffer, NULL, 10);
Matrix *matrix = matrix_create(rows, cols);
for(int i = 0; i < rows; i++){
for(int j = 0; j < cols; j++){
fgets(buffer, MAX_BYTES, fptr);
matrix->numbers[i][j] = strtod(buffer, NULL);
}
}
return matrix;
} }