2 files changed, 27 insertions, 19 deletions
diff --git a/include/mruby.h b/include/mruby.h
index 33a15de0e..568ed4876 100644
--- a/include/mruby.h
+++ b/include/mruby.h
@@ -239,9 +239,11 @@ mrb_sym mrb_intern(mrb_state *mrb,const char *cstr)
   return mrb_intern_cstr(mrb, cstr);
 }
 
-void *mrb_malloc(mrb_state*, size_t);
-void *mrb_calloc(mrb_state*, size_t, size_t);
-void *mrb_realloc(mrb_state*, void*, size_t);
+void *mrb_malloc(mrb_state*, size_t);         /* raise RuntimeError if no mem */
+void *mrb_calloc(mrb_state*, size_t, size_t); /* ditto */
+void *mrb_realloc(mrb_state*, void*, size_t); /* ditto */
+void *mrb_realloc_simple(mrb_state*, void*, size_t); /* return NULL if no memory available */
+void *mrb_malloc_simple(mrb_state*, size_t);  /* return NULL if no memory available */
 struct RBasic *mrb_obj_alloc(mrb_state*, enum mrb_vtype, struct RClass*);
 void mrb_free(mrb_state*, void*);
 
diff --git a/include/mruby/value.h b/include/mruby/value.h
index 06241ec76..e78035b5f 100644
--- a/include/mruby/value.h
+++ b/include/mruby/value.h
@@ -51,23 +51,29 @@
 typedef short mrb_sym;
 
 #ifdef _MSC_VER
-# define _ALLOW_KEYWORD_MACROS
-# include <float.h>
-# define inline __inline
+# ifndef __cplusplus
+#  define inline __inline
+# endif
 # define snprintf _snprintf
-# define isnan _isnan
-# define isinf(n) (!_finite(n) && !_isnan(n))
-# define strtoll _strtoi64
-# define PRId32 "I32d"
-# define PRIi32 "I32i"
-# define PRIo32 "I32o"
-# define PRIx32 "I32x"
-# define PRIX32 "I32X"
-# define PRId64 "I64d"
-# define PRIi64 "I64i"
-# define PRIo64 "I64o"
-# define PRIx64 "I64x"
-# define PRIX64 "I64X"
+# if _MSC_VER < 1800
+#  include <float.h>
+#  define isnan _isnan
+#  define isinf(n) (!_finite(n) && !_isnan(n))
+#  define strtoll _strtoi64
+#  define strtof (float)strtod
+#  define PRId32 "I32d"
+#  define PRIi32 "I32i"
+#  define PRIo32 "I32o"
+#  define PRIx32 "I32x"
+#  define PRIX32 "I32X"
+#  define PRId64 "I64d"
+#  define PRIi64 "I64i"
+#  define PRIo64 "I64o"
+#  define PRIx64 "I64x"
+#  define PRIX64 "I64X"
+# else
+#  include <inttypes.h>
+# endif
 #else
 # include <inttypes.h>
 #endif