Untitled
unknown
c_cpp
a year ago
681 B
8
Indexable
double *ReadDataFromFile(const char *fileName, int *numPoints) { FILE *fileIn = fopen(fileName, "r"); *numPoints = 0; char *line = NULL; size_t len = 0; // Read how many points while (getline(&line, &len, fileIn) != -1) *numPoints = *numPoints + 1; // Restart file rewind(fileIn); // free line if (line) free(line); // reserve memory for points double *points = (double *)malloc(*numPoints * 2 * sizeof(double)); // Read points for (int i = 0; i < *numPoints; ++i) { double x, y; fscanf(fileIn, "%lf\t%lf\n", &x, &y); printf("Read coordinate {%g,%g}\n", x, y); points[i * 2] = x; points[i * 2 + 1] = y; } return points; }
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