A Possible error in the C library:

This technical report documents an anomaly identified in the C standard library "", where certain invalid complex number comparisons — such as 0 = 10i — are erroneously treated as true. The issue was revealed during the author's undergraduate research, in an uncommon computational scenario involving zero-valued real parts. The findings raise concerns about silent logic errors and inconsistencies when using complex arithmetic in C. Comparative tests in Python confirm the discrepancy.