50 lines
1 KiB
C
50 lines
1 KiB
C
#include "tools.h"
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FILE * getFile(void)
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{
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FILE * file;
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char filename[50];
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printf("Enter filename: ");
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if (scanf("%s", filename) == 1)
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{
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file = fopen(filename, "r");
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if (file == NULL) {
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printf("Error file!\n");
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return NULL;
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} else {
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return file;
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}
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} else
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{
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printf("Empty name!\n");
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return NULL;
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}
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}
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double * getList(FILE * file) {
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double current;
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int i, length = 2;
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double * numbers = NULL;
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if (fscanf(file, "%lf", ¤t) != 1) {
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printf("File is empty!");
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return numbers;
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}
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numbers = (double *)malloc(length * sizeof(double));
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i = 1;
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do {
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if (i >= length) {
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length *= 2;
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numbers = (double *)realloc(numbers, (length * sizeof(double)));
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}
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numbers[i] = current;
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i++;
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} while (fscanf(file, "%lf", ¤t) == 1);
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numbers = (double *)realloc(numbers, i * sizeof(double));
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numbers[0] = i;
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return numbers;
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}
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