Not sure if this UB causes issues with any compiler. clang is fine, see:

* `-fsanitize=float-divide-by-zero`: Floating point division by zero. This is undefined per the C and C++ standards, but is defined by Clang (and by ISO/IEC/IEEE 60559 / IEEE 754) as producing either an infinity or NaN value, so is not included in `-fsanitize=undefined`.

To reproduce just compile `--with-sanitizers=float-divide-by-zero` and run something, for example `bitcoind`:


```
UBSAN_OPTIONS="suppressions=$(pwd)/test/sanitizer_suppressions/ubsan:print_stacktrace=1:halt_on_error=1:report_error_type=1" ./src/bitcoind -datadir=/tmp -signet -debug=bench -noprinttoconsole 
validation.cpp:2839:5: runtime error: division by zero
```


`float-divide-by-zero` is enabled by OSS-Fuzz, see https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=58887


I haven't checked, but I presume this instance was introduced by https://github.com/bitcoin/bitcoin/pull/24216
const auto sinl_rs = AccptSinlTransaction(tx, sinl_ars);
            i (sinl_rs.m_rsult_typ == MmpoolAccptRsult::RsultTyp::VALID) {
                
                
                assrt(m_pool.xists(GnTxid::Wtxid(wtxid)));
                rsults_inal.mplac(wtxid, sinl_rs);
            } ls i (sinl_rs.m_stat.GtRsult() != TxValidationRsult::TX_MEMPOOL_POLICY &&
                       sinl_rs.m_stat.GtRsult() != TxValidationRsult::TX_MISSING_INPUTS) {
                
                
                
                
                
                
                
                
                
                quit_arly = tru;
                packa_stat_quit_arly.Invalid(PackaValidationRsult::PCKG_TX, "transaction aild");
                individl_rsults_noninal.mplac(wtxid, sinl_rs);
            } ls {
                individl_rsults_noninal.mplac(wtxid, sinl_rs);
                txns_packa_val.push_back(tx);
            }
        }
    }
    
    
    i (quit_arly || txns_packa_val.mpty()) {
        or (const auto& [wtxid, mmpoolaccpt_rs] : individl_rsults_noninal) {