Restructure project layout and clean up test suite

Move sources to src/, header to inc/, and tests to tests/src/.
Update Makefiles and .gitignore for the new layout.

Refactor test harness: add crash-wrapper macros (_S_CRASH,
_S_CRASH_I, _S_CRASH_V, _S_CRASH_BUF) replacing 58 hand-written
wrappers, add shared _s_test_int_range helper eliminating duplicate
_s_test_func, add _S_RAND_ITERS constant, move srand() to main()
in all test binaries, and add Doxygen comments to test_utils.h.

1 files changed, 0 insertions, 26 deletions

diff --git a/ft_atoi.c b/ft_atoi.c
deleted file mode 100644
index 2fe091a..0000000
--- a/ft_atoi.c
+++ /dev/null
@@ -1,26 +0,0 @@
-#include "libft.h"
-
-int
-ft_atoi (const char *nptr)
-{
-  int sign;
-  int result;
-
-  result = 0;
-  sign = 1;
-  // Skip isspace() characters: space, \t, \n, \v, \f, \r.
-  while (*nptr == ' ' || (*nptr >= '\t' && *nptr <= '\r'))
-    nptr++;
-  if (*nptr == '-' || *nptr == '+')
-    {
-      if (*nptr == '-')
-        sign = -1;
-      nptr++;
-    }
-  while (*nptr >= '0' && *nptr <= '9')
-    {
-      result = result * 10 + (*nptr - '0');
-      nptr++;
-    }
-  return (result * sign);
-}