Module types 

Fundamental scalar types.

Mirrors Common/IpTypes.h and Common/IpTypes.hpp. We commit to f64 and i32 for v1.0 because Ipopt’s MUMPS/HSL ABI is built around those widths; widening here would force us off the bit-equivalence path.

Constants

NLP_LOWER_BOUND_INF

Sentinel used by Ipopt for “no bound” in TNLP get_bounds_info. Value 1e19 is hard-coded throughout upstream; we match it.

NLP_UPPER_BOUND_INF

Type Aliases

Index

Signed index — Index in Ipopt. Held at 32 bits for ABI parity with MUMPS, MA27, etc.

Number

Floating-point scalar — Number in Ipopt.