Rename float configuration option names.

- `MRB_WITHOUT_FLOAT` => `MRB_NO_FLOAT`
- `MRB_USE_FLOAT` => `MRB_USE_FLOAT32`

The former is to use `USE_XXX` naming convention. The latter is to make
sure `float` is 32bit float and not floating point number in general.

9 files changed, 50 insertions, 40 deletions

diff --git a/include/mrbconf.h b/include/mrbconf.h
index 734ec98e7..159aee48f 100644
--- a/include/mrbconf.h
+++ b/include/mrbconf.h
@@ -25,14 +25,24 @@
 #endif
 
 /* configuration options: */
-/* add -DMRB_USE_FLOAT to use float instead of double for floating point numbers */
-//#define MRB_USE_FLOAT
+/* add -DMRB_USE_FLOAT32 to use float instead of double for floating point numbers */
+//#define MRB_USE_FLOAT32
 
 /* exclude floating point numbers */
-//#define MRB_WITHOUT_FLOAT
+//#define MRB_NO_FLOAT
 
-#if defined(MRB_USE_FLOAT) && defined(MRB_WITHOUT_FLOAT)
-#error Cannot define MRB_USE_FLOAT and MRB_WITHOUT_FLOAT at the same time
+/* obsolete configuration */
+#if defined(MRB_USE_FLOAT)
+# define MRB_USE_FLOAT32
+#endif
+
+/* obsolete configuration */
+#if defined(MRB_WITHOUT_FLOAT)
+# define MRB_NO_FLOAT
+#endif
+
+#if defined(MRB_USE_FLOAT32) && defined(MRB_NO_FLOAT)
+#error Cannot define MRB_USE_FLOAT32 and MRB_NO_FLOAT at the same time
 #endif
 
 /* stop inlining floating point numbers in mrb_value (effective only with MRB_WORD_BOXING)*/
@@ -65,7 +75,7 @@
 # endif
 #endif
 
-/* represent mrb_value in boxed double; conflict with MRB_USE_FLOAT and MRB_WITHOUT_FLOAT */
+/* represent mrb_value in boxed double; conflict with MRB_USE_FLOAT32 and MRB_NO_FLOAT */
 //#define MRB_NAN_BOXING
 
 /* represent mrb_value as a word (natural unit of data for the processor) */
diff --git a/include/mruby.h b/include/mruby.h
index dea0a9c88..485a94d70 100644
--- a/include/mruby.h
+++ b/include/mruby.h
@@ -92,7 +92,7 @@
 #include <mruby/presym.h>
 #include <mruby/version.h>
 
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
 #include <float.h>
 #ifndef FLT_EPSILON
 #define FLT_EPSILON (1.19209290e-07f)
@@ -104,7 +104,7 @@
 #define LDBL_EPSILON (1.08420217248550443401e-19L)
 #endif
 
-#ifdef MRB_USE_FLOAT
+#ifdef MRB_USE_FLOAT32
 #define MRB_FLOAT_EPSILON FLT_EPSILON
 #else
 #define MRB_FLOAT_EPSILON DBL_EPSILON
@@ -245,7 +245,7 @@ typedef struct mrb_state {
   struct RClass *hash_class;
   struct RClass *range_class;
 
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
   struct RClass *float_class;
 #endif
   struct RClass *fixnum_class;
@@ -1211,7 +1211,7 @@ MRB_API mrb_bool mrb_obj_equal(mrb_state *mrb, mrb_value a, mrb_value b);
 MRB_API mrb_bool mrb_equal(mrb_state *mrb, mrb_value obj1, mrb_value obj2);
 MRB_API mrb_value mrb_convert_to_integer(mrb_state *mrb, mrb_value val, mrb_int base);
 MRB_API mrb_value mrb_Integer(mrb_state *mrb, mrb_value val);
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
 MRB_API mrb_value mrb_Float(mrb_state *mrb, mrb_value val);
 #endif
 MRB_API mrb_value mrb_inspect(mrb_state *mrb, mrb_value obj);
@@ -1304,7 +1304,7 @@ MRB_API mrb_value mrb_vformat(mrb_state *mrb, const char *format, va_list ap);
 #define E_FROZEN_ERROR              (mrb_exc_get_id(mrb, MRB_SYM(FrozenError)))
 
 #define E_NOTIMP_ERROR              (mrb_exc_get_id(mrb, MRB_SYM(NotImplementedError)))
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
 #define E_FLOATDOMAIN_ERROR         (mrb_exc_get_id(mrb, MRB_SYM(FloatDomainError)))
 #endif
 
diff --git a/include/mruby/boxing_nan.h b/include/mruby/boxing_nan.h
index a8655ca19..eb89ac1f9 100644
--- a/include/mruby/boxing_nan.h
+++ b/include/mruby/boxing_nan.h
@@ -7,12 +7,12 @@
 #ifndef MRUBY_BOXING_NAN_H
 #define MRUBY_BOXING_NAN_H
 
-#ifdef MRB_USE_FLOAT
-# error ---->> MRB_NAN_BOXING and MRB_USE_FLOAT conflict <<----
+#ifdef MRB_USE_FLOAT32
+# error ---->> MRB_NAN_BOXING and MRB_USE_FLOAT32 conflict <<----
 #endif
 
-#ifdef MRB_WITHOUT_FLOAT
-# error ---->> MRB_NAN_BOXING and MRB_WITHOUT_FLOAT conflict <<----
+#ifdef MRB_NO_FLOAT
+# error ---->> MRB_NAN_BOXING and MRB_NO_FLOAT conflict <<----
 #endif
 
 #ifdef MRB_INT64
diff --git a/include/mruby/boxing_no.h b/include/mruby/boxing_no.h
index 23b48c6f8..345f6b35b 100644
--- a/include/mruby/boxing_no.h
+++ b/include/mruby/boxing_no.h
@@ -11,7 +11,7 @@
 #define MRB_SYMBOL_SHIFT 0
 
 union mrb_value_union {
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
   mrb_float f;
 #endif
   void *p;
@@ -26,7 +26,7 @@ typedef struct mrb_value {
 
 #define mrb_ptr(o)      (o).value.p
 #define mrb_cptr(o)     mrb_ptr(o)
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
 #define mrb_float(o)    (o).value.f
 #endif
 #define mrb_fixnum(o)   (o).value.i
@@ -43,7 +43,7 @@ typedef struct mrb_value {
 #define SET_TRUE_VALUE(r) BOXNIX_SET_VALUE(r, MRB_TT_TRUE, value.i, 1)
 #define SET_BOOL_VALUE(r,b) BOXNIX_SET_VALUE(r, b ? MRB_TT_TRUE : MRB_TT_FALSE, value.i, 1)
 #define SET_INT_VALUE(r,n) BOXNIX_SET_VALUE(r, MRB_TT_FIXNUM, value.i, (n))
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
 #define SET_FLOAT_VALUE(mrb,r,v) BOXNIX_SET_VALUE(r, MRB_TT_FLOAT, value.f, (v))
 #endif
 #define SET_SYM_VALUE(r,v) BOXNIX_SET_VALUE(r, MRB_TT_SYMBOL, value.sym, (v))
diff --git a/include/mruby/boxing_word.h b/include/mruby/boxing_word.h
index a91d10421..b9b6a3fe9 100644
--- a/include/mruby/boxing_word.h
+++ b/include/mruby/boxing_word.h
@@ -11,7 +11,7 @@
 #error MRB_INT64 cannot be used with MRB_WORD_BOXING in 32-bit mode.
 #endif
 
-#if !defined(MRB_WITHOUT_FLOAT) || defined(MRB_NO_FLOAT_INLINE)
+#if !defined(MRB_NO_FLOAT) || defined(MRB_NO_FLOAT_INLINE)
 struct RFloat {
   MRB_OBJECT_HEADER;
   mrb_float f;
@@ -80,7 +80,7 @@ union mrb_value_ {
   };
 #endif
   struct RBasic *bp;
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
   struct RFloat *fp;
 #endif
   struct RCptr *vp;
@@ -96,13 +96,13 @@ mrb_val_union(mrb_value v)
 }
 
 MRB_API mrb_value mrb_word_boxing_cptr_value(struct mrb_state*, void*);
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
 MRB_API mrb_value mrb_word_boxing_float_value(struct mrb_state*, mrb_float);
 #endif
 
 #define mrb_ptr(o)     mrb_val_union(o).p
 #define mrb_cptr(o)    mrb_val_union(o).vp->p
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
 #define mrb_float(o)   mrb_val_union(o).fp->f
 #endif
 #define mrb_fixnum(o)  BOXWORD_SHIFT_VALUE(o, FIXNUM, mrb_int)
@@ -124,7 +124,7 @@ MRB_API mrb_value mrb_word_boxing_float_value(struct mrb_state*, mrb_float);
 #define mrb_nil_p(o)  ((o) == MRB_Qnil)
 #define mrb_false_p(o) ((o) == MRB_Qfalse)
 #define mrb_true_p(o)  ((o) == MRB_Qtrue)
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
 #define mrb_float_p(o) BOXWORD_OBJ_TYPE_P(o, FLOAT)
 #endif
 #define mrb_array_p(o) BOXWORD_OBJ_TYPE_P(o, ARRAY)
@@ -146,7 +146,7 @@ MRB_API mrb_value mrb_word_boxing_float_value(struct mrb_state*, mrb_float);
 #define mrb_istruct_p(o) BOXWORD_OBJ_TYPE_P(o, ISTRUCT)
 #define mrb_break_p(o) BOXWORD_OBJ_TYPE_P(o, BREAK)
 
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
 #define SET_FLOAT_VALUE(mrb,r,v) ((r) = mrb_word_boxing_float_value(mrb, v))
 #endif
 #define SET_CPTR_VALUE(mrb,r,v) ((r) = mrb_word_boxing_cptr_value(mrb, v))
diff --git a/include/mruby/class.h b/include/mruby/class.h
index 88e5915e5..a02c4ef17 100644
--- a/include/mruby/class.h
+++ b/include/mruby/class.h
@@ -37,7 +37,7 @@ mrb_class(mrb_state *mrb, mrb_value v)
     return mrb->symbol_class;
   case MRB_TT_FIXNUM:
     return mrb->fixnum_class;
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
   case MRB_TT_FLOAT:
     return mrb->float_class;
 #endif
diff --git a/include/mruby/error.h b/include/mruby/error.h
index 67a0a539e..b607dd957 100644
--- a/include/mruby/error.h
+++ b/include/mruby/error.h
@@ -32,7 +32,7 @@ MRB_API mrb_noreturn void mrb_no_method_error(mrb_state *mrb, mrb_sym id, mrb_va
 /* declaration for `fail` method */
 MRB_API mrb_value mrb_f_raise(mrb_state*, mrb_value);
 
-#if defined(MRB_64BIT) || defined(MRB_USE_FLOAT) || defined(MRB_NAN_BOXING) || defined(MRB_WORD_BOXING)
+#if defined(MRB_64BIT) || defined(MRB_USE_FLOAT32) || defined(MRB_NAN_BOXING) || defined(MRB_WORD_BOXING)
 struct RBreak {
   MRB_OBJECT_HEADER;
   const struct RProc *proc;
@@ -62,7 +62,7 @@ mrb_break_value_set(struct RBreak *brk, mrb_value val)
   brk->flags &= ~RBREAK_VALUE_TT_MASK;
   brk->flags |= val.tt;
 }
-#endif  /* MRB_64BIT || MRB_USE_FLOAT || MRB_NAN_BOXING || MRB_WORD_BOXING */
+#endif  /* MRB_64BIT || MRB_USE_FLOAT32 || MRB_NAN_BOXING || MRB_WORD_BOXING */
 #define mrb_break_proc_get(brk) ((brk)->proc)
 #define mrb_break_proc_set(brk, p) ((brk)->proc = p)
 
diff --git a/include/mruby/numeric.h b/include/mruby/numeric.h
index 06a33cc6f..10b242688 100644
--- a/include/mruby/numeric.h
+++ b/include/mruby/numeric.h
@@ -22,7 +22,7 @@ MRB_BEGIN_DECL
 #define POSFIXABLE(f) TYPED_POSFIXABLE(f,mrb_int)
 #define NEGFIXABLE(f) TYPED_NEGFIXABLE(f,mrb_int)
 #define FIXABLE(f) TYPED_FIXABLE(f,mrb_int)
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
 #ifdef MRB_INT64
 #define FIXABLE_FLOAT(f) ((f)>=-9223372036854775808.0 && (f)<9223372036854775808.0)
 #else
@@ -30,12 +30,12 @@ MRB_BEGIN_DECL
 #endif
 #endif
 
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
 MRB_API mrb_value mrb_flo_to_fixnum(mrb_state *mrb, mrb_value val);
 #endif
 MRB_API mrb_value mrb_fixnum_to_str(mrb_state *mrb, mrb_value x, mrb_int base);
 /* ArgumentError if format string doesn't match /%(\.[0-9]+)?[aAeEfFgG]/ */
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
 MRB_API mrb_value mrb_float_to_str(mrb_state *mrb, mrb_value x, const char *fmt);
 MRB_API int mrb_float_to_cstr(mrb_state *mrb, char *buf, size_t len, const char *fmt, mrb_float f);
 MRB_API mrb_float mrb_to_flo(mrb_state *mrb, mrb_value x);
@@ -161,13 +161,13 @@ mrb_int_mul_overflow(mrb_int multiplier, mrb_int multiplicand, mrb_int *product)
 
 #endif
 
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
 # include <stdint.h>
 # include <float.h>
 
 # define MRB_FLT_RADIX          FLT_RADIX
 
-# ifdef MRB_USE_FLOAT
+# ifdef MRB_USE_FLOAT32
 #  define MRB_FLT_MANT_DIG      FLT_MANT_DIG
 #  define MRB_FLT_EPSILON       FLT_EPSILON
 #  define MRB_FLT_DIG           FLT_DIG
@@ -178,7 +178,7 @@ mrb_int_mul_overflow(mrb_int multiplier, mrb_int multiplicand, mrb_int *product)
 #  define MRB_FLT_MAX           FLT_MAX
 #  define MRB_FLT_MAX_10_EXP    FLT_MAX_10_EXP
 
-# else /* not MRB_USE_FLOAT */
+# else /* not MRB_USE_FLOAT32 */
 #  define MRB_FLT_MANT_DIG      DBL_MANT_DIG
 #  define MRB_FLT_EPSILON       DBL_EPSILON
 #  define MRB_FLT_DIG           DBL_DIG
@@ -188,8 +188,8 @@ mrb_int_mul_overflow(mrb_int multiplier, mrb_int multiplicand, mrb_int *product)
 #  define MRB_FLT_MAX_EXP       DBL_MAX_EXP
 #  define MRB_FLT_MAX           DBL_MAX
 #  define MRB_FLT_MAX_10_EXP    DBL_MAX_10_EXP
-# endif /* MRB_USE_FLOAT */
-#endif /* MRB_WITHOUT_FLOAT */
+# endif /* MRB_USE_FLOAT32 */
+#endif /* MRB_NO_FLOAT */
 
 MRB_END_DECL
 
diff --git a/include/mruby/value.h b/include/mruby/value.h
index 473774b00..88c8d4dba 100644
--- a/include/mruby/value.h
+++ b/include/mruby/value.h
@@ -75,9 +75,9 @@ struct mrb_state;
 # define MRB_ENDIAN_LOHI(a,b) b a
 #endif
 
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
 MRB_API double mrb_float_read(const char*, char**);
-#ifdef MRB_USE_FLOAT
+#ifdef MRB_USE_FLOAT32
   typedef float mrb_float;
 #else
   typedef double mrb_float;
@@ -90,7 +90,7 @@ MRB_API int mrb_msvc_vsnprintf(char *s, size_t n, const char *format, va_list ar
 MRB_API int mrb_msvc_snprintf(char *s, size_t n, const char *format, ...);
 # define vsnprintf(s, n, format, arg) mrb_msvc_vsnprintf(s, n, format, arg)
 # define snprintf(s, n, format, ...) mrb_msvc_snprintf(s, n, format, __VA_ARGS__)
-# if _MSC_VER < 1800 && !defined MRB_WITHOUT_FLOAT
+# if _MSC_VER < 1800 && !defined MRB_NO_FLOAT
 #  include <float.h>
 #  define isfinite(n) _finite(n)
 #  define isnan _isnan
@@ -195,7 +195,7 @@ struct RCptr {
 #ifndef mrb_true_p
 #define mrb_true_p(o)  (mrb_type(o) == MRB_TT_TRUE)
 #endif
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
 #ifndef mrb_float_p
 #define mrb_float_p(o) (mrb_type(o) == MRB_TT_FLOAT)
 #endif
@@ -264,7 +264,7 @@ struct RCptr {
  *
  * Takes a float and boxes it into an mrb_value
  */
-#ifndef MRB_WITHOUT_FLOAT
+#ifndef MRB_NO_FLOAT
 MRB_INLINE mrb_value mrb_float_value(struct mrb_state *mrb, mrb_float f)
 {
   mrb_value v;