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fix overflow error like #2244 on MRB_WORD_BOXING

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This commit is contained in:
Yukihiro "Matz" Matsumoto
2014-05-13 23:15:44 +09:00
parent 190d9ebbe2
commit c12f64271a
3 changed files with 22 additions and 11 deletions
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include/mruby/value.h
+17 -4
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@@ -27,8 +27,13 @@
# else
typedef int64_t mrb_int;
# define MRB_INT_BIT 64
# define MRB_INT_MIN INT64_MIN
# define MRB_INT_MAX INT64_MAX
# ifdef MRB_WORD_BOXING
# define MRB_INT_MIN (INT64_MIN>>MRB_FIXNUM_SHIFT)
# define MRB_INT_MAX (INT64_MAX>>MRB_FIXNUM_SHIFT)
# else
# define MRB_INT_MIN INT64_MIN
# define MRB_INT_MAX INT64_MAX
# endif
# define PRIdMRB_INT PRId64
# define PRIiMRB_INT PRIi64
# define PRIoMRB_INT PRIo64
@@ -36,6 +41,9 @@
# define PRIXMRB_INT PRIX64
# endif
#elif defined(MRB_INT16)
# ifdef MRB_WORD_BOXING
# error "MRB_INT16 is too small for MRB_WORD_BOXING."
# endif
typedef int16_t mrb_int;
# define MRB_INT_BIT 16
# define MRB_INT_MIN INT16_MIN
@@ -43,8 +51,13 @@
#else
typedef int32_t mrb_int;
# define MRB_INT_BIT 32
# define MRB_INT_MIN INT32_MIN
# define MRB_INT_MAX INT32_MAX
# ifdef MRB_WORD_BOXING
# define MRB_INT_MIN (INT32_MIN>>MRB_FIXNUM_SHIFT)
# define MRB_INT_MAX (INT32_MAX>>MRB_FIXNUM_SHIFT)
# else
# define MRB_INT_MIN INT32_MIN
# define MRB_INT_MAX INT32_MAX
# endif
# define PRIdMRB_INT PRId32
# define PRIiMRB_INT PRIi32
# define PRIoMRB_INT PRIo32