Standard compliance.

Apparently ssize_t isn't a standard type...

2 files changed, 50 insertions, 2 deletions

diff --git a/libdimension/dimension/inline.h b/libdimension/dimension/inline.h
new file mode 100644
index 0000000..edf92b1
--- /dev/null
+++ b/libdimension/dimension/inline.h
@@ -0,0 +1,48 @@
+/*************************************************************************
+ * Copyright (C) 2009-2010 Tavian Barnes <tavianator@gmail.com>          *
+ *                                                                       *
+ * This file is part of The Dimension Library.                           *
+ *                                                                       *
+ * The Dimension Library is free software; you can redistribute it and/  *
+ * or modify it under the terms of the GNU Lesser General Public License *
+ * as published by the Free Software Foundation; either version 3 of the *
+ * License, or (at your option) any later version.                       *
+ *                                                                       *
+ * The Dimension Library is distributed in the hope that it will be      *
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty   *
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU  *
+ * Lesser General Public License for more details.                       *
+ *                                                                       *
+ * You should have received a copy of the GNU Lesser General Public      *
+ * License along with this program.  If not, see                         *
+ * <http://www.gnu.org/licenses/>.                                       *
+ *************************************************************************/
+
+/*
+ * Handle inlines nicely without cheating and making them static.  The
+ * DMNSN_INLINE macro is set appropriately for the version of C you're using,
+ * and non-inline versions are emitted in exactly one translation unit when
+ * necessary.
+ */
+
+#ifndef DIMENSION_INLINE_H
+#define DIMENSION_INLINE_H
+
+#ifndef DMNSN_INLINE
+  #ifdef __cplusplus
+    /* C++ inline semantics */
+    #define DMNSN_INLINE inline
+  #elif __STDC_VERSION__ >= 199901L
+    /* C99 inline semantics */
+    #define DMNSN_INLINE inline
+  #elif defined(__GNUC__)
+    /* GCC inline semantics */
+    #define DMNSN_INLINE __extension__ extern __inline__
+  #else
+    /* Unknown C - mark functions static and hope the compiler is smart enough
+       to inline them */
+    #define DMNSN_INLINE static
+  #endif
+#endif
+
+#endif /* DIMENSION_INLINE_H */
diff --git a/libdimension/dimension/polynomial.h b/libdimension/dimension/polynomial.h
index ffe3014..56e3ac0 100644
--- a/libdimension/dimension/polynomial.h
+++ b/libdimension/dimension/polynomial.h
@@ -34,8 +34,8 @@ DMNSN_INLINE double
 dmnsn_evaluate_polynomial(const double poly[], size_t degree, double x)
 {
   double ret = poly[degree];
-  ssize_t i;
-  for (i = degree - 1; i >= 0; --i) {
+  size_t i;
+  for (i = degree; i-- > 0;) {
     ret = ret*x + poly[i];
   }
   return ret;