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Revert "SCM is a union"

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This reverts commit 8787d7a170.
This commit is contained in:
Andy Wingo 2011-09-15 12:28:17 -07:00
parent 75917d6243
commit 25f4a88032
1 changed files with 3 additions and 3 deletions
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6
libguile/tags.h
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@ -74,9 +74,9 @@ typedef scm_t_uintptr scm_t_bits;
* desired level of type checking, be defined in several ways:
*/
#if (SCM_DEBUG_TYPING_STRICTNESS == 2)
typedef union SCM { scm_t_bits n; } SCM;
# define SCM_UNPACK(x) ((x).n)
# define SCM_PACK(x) ((SCM) { (scm_t_bits) (x) })
typedef union SCM { struct { scm_t_bits n; } n; } SCM;
# define SCM_UNPACK(x) ((x).n.n)
# define SCM_PACK(x) ((SCM) { { (scm_t_bits) (x) } })
#elif (SCM_DEBUG_TYPING_STRICTNESS == 1)
/* This is the default, which provides an intermediate level of compile time
* type checking while still resulting in very efficient code.