Leaked source code of windows server 2003
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#define DOOP(ppname) PUTBACK; PL_op = ppname(aTHX); SPAGAIN
#define CCPP(s) OP * s(pTHX)
#define PP_LIST(g) do { \
dMARK; \ if (g != G_ARRAY) { \ if (++MARK <= SP) \ *MARK = *SP; \ else \ *MARK = &PL_sv_undef; \ SP = MARK; \ } \ } while (0)
#define MAYBE_TAINT_SASSIGN_SRC(sv) \
if (PL_tainting && PL_tainted && (!SvGMAGICAL(left) || !SvSMAGICAL(left) || \ !((mg=mg_find(left, 't')) && mg->mg_len & 1)))\ TAINT_NOT
#define PP_PREINC(sv) do { \
if (SvIOK(sv)) { \ ++SvIVX(sv); \ SvFLAGS(sv) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK); \ } \ else \ sv_inc(sv); \ SvSETMAGIC(sv); \ } while (0)
#define PP_UNSTACK do { \
TAINT_NOT; \ PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; \ FREETMPS; \ oldsave = PL_scopestack[PL_scopestack_ix - 1]; \ LEAVE_SCOPE(oldsave); \ SPAGAIN; \ } while(0)
/* Anyone using eval "" deserves this mess */ #define PP_EVAL(ppaddr, nxt) do { \
dJMPENV; \ int ret; \ PUTBACK; \ JMPENV_PUSH(ret); \ switch (ret) { \ case 0: \ PL_op = ppaddr(aTHX); \ PL_retstack[PL_retstack_ix - 1] = Nullop; \ if (PL_op != nxt) CALLRUNOPS(); \ JMPENV_POP; \ break; \ case 1: JMPENV_POP; JMPENV_JUMP(1); \ case 2: JMPENV_POP; JMPENV_JUMP(2); \ case 3: \ JMPENV_POP; \ if (PL_restartop && PL_restartop != nxt) \ JMPENV_JUMP(3); \ } \ PL_op = nxt; \ SPAGAIN; \ } while (0)
#define PP_ENTERTRY(jmpbuf,label) \
STMT_START { \ int ret; \ JMPENV_PUSH_ENV(jmpbuf,ret); \ switch (ret) { \ case 1: JMPENV_POP_ENV(jmpbuf); JMPENV_JUMP(1);\ case 2: JMPENV_POP_ENV(jmpbuf); JMPENV_JUMP(2);\ case 3: JMPENV_POP_ENV(jmpbuf); SPAGAIN; goto label;\ } \ } STMT_END #define PP_LEAVETRY \
STMT_START{ PL_top_env=PL_top_env->je_prev; }STMT_END
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