main (void)
{
FILE *f;
- char *line = NULL;
- size_t len = 0;
+ char *line;
+ size_t len;
ssize_t result;
/* Create test file. */
f = fopen ("test-getline.txt", "wb");
- if (!f || fwrite ("a\nbc\nd\0f", 1, 8, f) != 8 || fclose (f) != 0)
+ if (!f || fwrite ("a\nA\nbc\nd\0f", 1, 10, f) != 10 || fclose (f) != 0)
{
fputs ("Failed to create sample file.\n", stderr);
remove ("test-getline.txt");
}
/* Test initial allocation, which must include trailing NUL. */
+ line = NULL;
+ len = 0;
result = getline (&line, &len, f);
ASSERT (result == 2);
ASSERT (strcmp (line, "a\n") == 0);
ASSERT (2 < len);
+ free (line);
- /* Test growth of buffer, must not leak. */
+ /* Test initial allocation again, with line = NULL and len != 0. */
+ line = NULL;
+ len = (size_t)(~0) / 4;
+ result = getline (&line, &len, f);
+ ASSERT (result == 2);
+ ASSERT (strcmp (line, "A\n") == 0);
+ ASSERT (2 < len);
free (line);
+
+ /* Test growth of buffer, must not leak. */
line = malloc (1);
len = 0;
result = getline (&line, &len, f);