Where is defined lispobj struct in SBCL sources

Question

My question is self-explanatory. I'm grepping for ages and I can't find it ...

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Answer 1

lispobj is not a struct, just a typedef. It is defined in src/runtime/runtime.h currently after line 234:

#if 64 == N_WORD_BITS
#define LOW_WORD(c) ((pointer_sized_uint_t)c)
#define OBJ_FMTX "lx"
typedef uintptr_t lispobj;
#else
#define OBJ_FMTX "x"
#define LOW_WORD(c) ((long)(c) & 0xFFFFFFFFL)
/* fake it on alpha32 */
typedef unsigned int lispobj;
#endif