Initial commit: libft Part 1 with tests and documentation

Reimplements 24 libc functions with Doxygen-documented header
and test suite comparing against libc.

1 files changed, 43 insertions, 0 deletions

diff --git a/tests/test_is.c b/tests/test_is.c
new file mode 100644
index 0000000..1af5d40
--- /dev/null
+++ b/tests/test_is.c
@@ -0,0 +1,43 @@
+#include "../libft.h"
+#include "test_utils.h"
+#include <ctype.h>
+
+static void
+_s_test_func (const char *name, int (*ft) (int), int (*libc) (int))
+{
+  int i;
+  int ft_r;
+  int libc_r;
+  int ok;
+
+  ok = 1;
+  for (i = -1; i <= 255; i++)
+    {
+      ft_r = !!ft (i);
+      libc_r = !!libc (i);
+      if (ft_r != libc_r)
+        {
+          printf ("  FAIL %s(%d): ft=%d libc=%d\n", name, i, ft_r, libc_r);
+          _s_fail++;
+          ok = 0;
+        }
+    }
+  if (ok)
+    {
+      printf ("  PASS %s (all -1..255)\n", name);
+      _s_pass++;
+    }
+}
+
+int
+main (void)
+{
+  printf ("=== is* functions ===\n");
+  _s_test_func ("ft_isalpha", ft_isalpha, isalpha);
+  _s_test_func ("ft_isdigit", ft_isdigit, isdigit);
+  _s_test_func ("ft_isalnum", ft_isalnum, isalnum);
+  _s_test_func ("ft_isascii", ft_isascii, isascii);
+  _s_test_func ("ft_isprint", ft_isprint, isprint);
+  _s_print_results ();
+  return (_s_fail != 0);
+}