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#include <stdio.h>
#include <stdlib.h>
int main() {
int c;
size_t size = 1024; // initial buffer size
size_t len = 0;
char *buffer = malloc(size);
if (!buffer) {
perror("malloc");
return 1;
}
printf("Type input (Ctrl+D to end):\n");
while ((c = getchar()) != EOF) {
// Resize buffer if needed
if (len + 1 >= size) {
size *= 2;
char *tmp = realloc(buffer, size);
if (!tmp) {
free(buffer);
perror("realloc");
return 1;
}
buffer = tmp;
}
buffer[len++] = (char)c;
}
// Null-terminate string
buffer[len] = '\0';
printf("\nYou typed:\n%s\n", buffer);
free(buffer);
return 0;
}
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