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#include <stdlib.h>
#include <stdio.h>
#include <float.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
void main(int argc, char* argv[])
{
float *array = NULL;
int arrayLength = 0;
int arrayUsage = 0;
float max = FLT_MIN;
float current;
FILE *fp;
for (int i = 1; i < argc; i++)
{
fp = fopen(argv[i], "r");
if (fp == NULL)
{
fprintf(stderr, "Could not open `%s´: %s\n", argv[i], strerror(errno));
exit(EXIT_FAILURE);
}
for (int res; res = fscanf(fp, "%f\n", ¤t); )
{
if (res == EOF || res != 1)
break;
if (arrayUsage >= arrayLength)
{
if (arrayLength <= 1)
arrayLength = 1;
// fprintf(stderr, "Reallocating array %d → %d\n", arrayLength, arrayLength * 2);
arrayLength *= 2;
array = realloc(array, sizeof(float) * arrayLength);
}
array[arrayUsage] = current;
arrayUsage++;
}
if (ferror(fp))
{
fprintf(stderr, "Error while reading from file `%s´: %s\n", argv[i], strerror(errno));
exit(EXIT_FAILURE);
}
fclose(fp);
}
for (int i = 0; i < arrayUsage; i++)
{
if (array[i] > max)
max = array[i];
}
printf("%.2f\n", max);
}
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