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fourindex: by default ignore assignments to zero elements due to antisymmetry

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Jiri Pittner
2025-11-27 14:11:54 +01:00
parent 831404d08d
commit 76d00b6b2b
1 changed files with 12 additions and 2 deletions
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14
fourindex.h
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@@ -1385,7 +1385,12 @@ if(i<j) elem = -elem;
if(k<l) elem = -elem;
int I = ASMat_index_1(i,j);
int J = ASMat_index_1(k,l);
if (I<0 || J<0) laerror("assignment to nonexisting element");
if (I<0 || J<0)
#ifdef FORBID_NONEXISTENT_ASSIGNMENTS
laerror("assignment to nonexisting element");
#else
return;
#endif
#ifdef DEBUG
if (I>=NRSMat<T>::nn || J>=NRSMat<T>::nn) laerror("index out of range");
if (!NRSMat<T>::v) laerror("access to unallocated fourindex_dense");
@@ -1401,7 +1406,12 @@ if(i<j) elem = -elem;
if(k<l) elem = -elem;
int I = ASMat_index_1(i,j);
int J = ASMat_index_1(k,l);
if (I<0 || J<0) laerror("assignment to nonexisting element");
if (I<0 || J<0)
#ifdef FORBID_NONEXISTENT_ASSIGNMENTS
laerror("assignment to nonexisting element");
#else
return;
#endif
#ifdef DEBUG
if (I>=NRSMat<T>::nn || J>=NRSMat<T>::nn) laerror("index out of range");
if (!NRSMat<T>::v) laerror("access to unallocated fourindex_dense");