admin/mruby-mruby
1
0
Fork 0
mirror of https://github.com/mruby/mruby synced 2026-06-08 16:11:16 +00:00
Code Issues Packages Projects Releases Wiki Activity

mrbconf.h: rename MRB_WORDBOX_NO_FLOAT_TRUNCATE to MRB_WORDBOX_NO_INLINE_FLOAT

Browse Source 
The old name referred to "truncation" of float precision, which no
longer happens with rotation encoding. The new name describes the
actual behavior: disabling inline float encoding in word boxing.
The old name is kept as an obsolete alias for backward compatibility.

Co-authored-by: Claude <noreply@anthropic.com>
This commit is contained in:
Yukihiro "Matz" Matsumoto
2026-02-27 10:30:01 +09:00
parent 32f99a622d
commit 59e1fe29d6
7 changed files with 29 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/mruby/boxing_word.h
+10 -10
View File
@@ -7,14 +7,14 @@
#ifndef MRUBY_BOXING_WORD_H
#define MRUBY_BOXING_WORD_H
#if defined(MRB_32BIT) && !defined(MRB_USE_FLOAT32) && !defined(MRB_WORDBOX_NO_FLOAT_TRUNCATE)
# define MRB_WORDBOX_NO_FLOAT_TRUNCATE
#if defined(MRB_32BIT) && !defined(MRB_USE_FLOAT32) && !defined(MRB_WORDBOX_NO_INLINE_FLOAT)
# define MRB_WORDBOX_NO_INLINE_FLOAT
#endif
#ifndef MRB_NO_FLOAT
struct RFloat {
MRB_OBJECT_HEADER;
#ifdef MRB_WORDBOX_NO_FLOAT_TRUNCATE
#ifdef MRB_WORDBOX_NO_INLINE_FLOAT
/* avoid 8-byte alignment on 32-bit; use memcpy-based accessors */
char f[sizeof(mrb_float)];
#else
@@ -27,7 +27,7 @@ struct RFloat {
static inline mrb_float
mrb_rfloat_value(const struct RFloat *p)
{
#ifdef MRB_WORDBOX_NO_FLOAT_TRUNCATE
#ifdef MRB_WORDBOX_NO_INLINE_FLOAT
mrb_float f;
memcpy(&f, p->f, sizeof(mrb_float));
return f;
@@ -39,7 +39,7 @@ mrb_rfloat_value(const struct RFloat *p)
static inline void
mrb_rfloat_set(struct RFloat *p, mrb_float f)
{
#ifdef MRB_WORDBOX_NO_FLOAT_TRUNCATE
#ifdef MRB_WORDBOX_NO_INLINE_FLOAT
memcpy(p->f, &f, sizeof(mrb_float));
#else
p->f = f;
@@ -79,7 +79,7 @@ enum mrb_special_consts {
#define WORDBOX_FIXNUM_FLAG (1 << (WORDBOX_FIXNUM_BIT_POS - 1))
#define WORDBOX_FIXNUM_MASK ((1 << WORDBOX_FIXNUM_BIT_POS) - 1)
#if defined(MRB_WORDBOX_NO_FLOAT_TRUNCATE) || defined(MRB_NO_FLOAT)
#if defined(MRB_WORDBOX_NO_INLINE_FLOAT) || defined(MRB_NO_FLOAT)
/* floats are allocated in heaps */
#define WORDBOX_IMMEDIATE_MASK 0x03
#define WORDBOX_SYMBOL_BIT_POS 2
@@ -127,7 +127,7 @@ enum mrb_special_consts {
* float : ...FFFF FF10 (float32 shifted left by 2)
* (other values same as above)
*
* word boxing without inline float (MRB_WORDBOX_NO_FLOAT_TRUNCATE):
* word boxing without inline float (MRB_WORDBOX_NO_INLINE_FLOAT):
* nil : ...0000 0000 (all bits are 0)
* false : ...0000 0100 (mrb_fixnum(v) != 0)
* true : ...0000 1100
@@ -145,7 +145,7 @@ union mrb_value_ {
struct RBasic *bp;
#ifndef MRB_NO_FLOAT
struct RFloat *fp;
#if !defined(MRB_WORDBOX_NO_FLOAT_TRUNCATE) && defined(MRB_USE_FLOAT32)
#if !defined(MRB_WORDBOX_NO_INLINE_FLOAT) && defined(MRB_USE_FLOAT32)
mrb_float f;
#endif
#endif
@@ -180,7 +180,7 @@ MRB_API mrb_value mrb_boxing_int_value(struct mrb_state*, mrb_int);
#define mrb_ptr(o) mrb_val_union(o).p
#define mrb_cptr(o) mrb_val_union(o).vp->p
#ifndef MRB_NO_FLOAT
#ifndef MRB_WORDBOX_NO_FLOAT_TRUNCATE
#ifndef MRB_WORDBOX_NO_INLINE_FLOAT
MRB_API mrb_float mrb_word_boxing_value_float(mrb_value v);
#define mrb_float(o) mrb_word_boxing_value_float(o)
#else
@@ -205,7 +205,7 @@ mrb_integer_func(mrb_value o) {
#define mrb_false_p(o) ((o).w == MRB_Qfalse)
#define mrb_true_p(o) ((o).w == MRB_Qtrue)
#ifndef MRB_NO_FLOAT
#ifdef MRB_WORDBOX_NO_FLOAT_TRUNCATE
#ifdef MRB_WORDBOX_NO_INLINE_FLOAT
#define mrb_float_p(o) WORDBOX_OBJ_TYPE_P(o, FLOAT)
#elif defined(MRB_USE_FLOAT32) && defined(MRB_64BIT)
#define mrb_float_p(o) WORDBOX_SHIFT_VALUE_P(o, FLOAT)