in reply to Re^2: Looking at a SV in C
in thread Looking at a SV in C
The struct is self referential.
The primary purpose of the tag name on structs is to allow for self referential definitions.
This compiles clean with MSVC:
typedef struct pMG { XPVMG *sv_any; U32 sv_refcnt; union { U32 sv_flags; struct { unsigned long type : 8; unsigned long f_IOK : 1; unsigned long f_NOK : 1; unsigned long f_POK : 1; unsigned long f_ROK : 1; unsigned long p_IOK: 1; unsigned long p_NOK: 1; unsigned long p_POK : 1; unsigned long p_SCREAM_phv_CLONEABLE_phv_CLONEABLE_prv_PCS +_IMPORTED : 1; unsigned long s_PADSTALE_SVpad_STATE : 1; unsigned long s_PADTMP_SVpad_TYPED : 1; unsigned long s_PADMY_SVpad_OUR : 1; unsigned long s_TEMP : 1; unsigned long s_OBJECT : 1; unsigned long s_GMG : 1; unsigned long s_SMG : 1; unsigned long s_RMG : 1; unsigned long f_FAKE_SVphv_REHASH : 1; unsigned long f_OOK : 1; unsigned long f_BREAK: 1; unsigned long f_READONLY : 1; unsigned long f_AMAGIC : 1; unsigned long f_UTF8_SVphv_SHAREKEYS : 1; unsigned long pav_REAL_phv_LAZYDEL_pbm_VALID_repl_EVAL : 1 +; unsigned long f_IVisUV_pav_REIFY_phv_HASKFLAGS_pfm_COMPILE +D_pbm_TAIL_prv_WEAKREF : 1; } flagsraw; }; union { IV svu_iv; UV svu_uv; struct pMG *svu_rv; char *svu_pv; struct pMG **svu_array; HE **svu_hash; GP *svu_gp; } sv_u; };
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