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fix sigsegv error

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ValKmjolnir
2021-10-18 21:50:25 +08:00
parent 885b57cd52
commit 56280db2c7
3 changed files with 48 additions and 36 deletions
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nasal_vm.h
+3 -2
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@@ -340,10 +340,11 @@ inline void nasal_vm::opr_pstr()
}
inline void nasal_vm::opr_newv()
{
nasal_ref newv=gc.alloc(vm_vec);
nasal_ref newv=gc.alloc(vm_vec);
auto& vec=newv.vec()->elems;// top-imm[pc] stores the vector
vec.resize(imm[pc]);
top-=imm[pc]-1;
// use top-=imm[pc]-1 here will cause error if imm[pc] is 0
top=top-imm[pc]+1;
for(uint32_t i=0;i<imm[pc];++i)
vec[i]=top[i];
top[0]=newv;