Module mathfunc 

Mathematical functions for arithmetic expressions — port of Src/Modules/mathfunc.c.

C source has THREE anonymous enum {} blocks (lines 35, 90, 104) generating int-typed constants — no named C type, so the Rust port mirrors them as pub const ... : i32 = ...; definitions only (rule 1: no Rust-only struct/enum types).

All math-fn dispatch lives in a single math_func() switch, matching the C structure 1:1.

Constants

MF_ABS

MF_ACOS

MF_ACOSH

MF_ASIN

MF_ASINH

MF_ATAN

MF_ATANH

MF_CBRT

MF_CEIL

MF_COPYSIGN

MF_COS

MF_COSH

MF_ERF

MF_ERFC

MF_EXP

MF_EXPM1

MF_FABS

MF_FLOAT

MF_FLOOR

MF_FMOD

MF_GAMMA

MF_HYPOT

MF_ILOGB

MF_INT

MF_ISINF

MF_ISNAN

MF_J0

MF_J1

MF_JN

MF_LDEXP

MF_LGAMMA

MF_LOG

MF_LOG2

MF_LOG1P

MF_LOG10

MF_LOGB

MF_NEXTAFTER

MF_RINT

MF_SCALB

MF_SIGNGAM

MF_SIN

MF_SINH

MF_SQRT

MF_TAN

MF_TANH

MF_Y0

MF_Y1

MF_YN

MS_RAND48

TF_INT1

TF_INT2

TF_NOASS

TF_NOCONV

Functions

boot_

Port of boot_(UNUSED(Module m)) from Src/Modules/mathfunc.c:570.

cleanup_

Port of cleanup_(UNUSED(Module m)) from Src/Modules/mathfunc.c:577. C body: return setfeatureenables(m, &module_features, NULL);

enables_

Port of enables_(UNUSED(Module m), UNUSED(int **enables)) from Src/Modules/mathfunc.c:563. C body: return handlefeatures(m, &module_features, enables);

features_

Port of features_(UNUSED(Module m), UNUSED(char ***features)) from Src/Modules/mathfunc.c:555. C body: *features = featuresarray(m, &module_features); return 0;

finish_

Port of finish_(UNUSED(Module m)) from Src/Modules/mathfunc.c:584.

math_func

Port of math_func(UNUSED(char *name), int argc, mnumber *argv, int id) from Src/Modules/mathfunc.c:173. The dispatcher behind every numeric math fn registered via NUMMATHFUNC in mftab[] (mathfunc.c:115-167).

math_string

Port of math_string(UNUSED(char *name), char *arg, int id) from Src/Modules/mathfunc.c:439. The string-arg math-fn dispatcher behind rand48("seedvar") and future string-takers. C signature: static mnumber math_string(char *name, char *arg, int id)

setup_

Port of setup_(UNUSED(Module m)) from Src/Modules/mathfunc.c:548.

tflag

Port of the TFLAG(x) macro from mathfunc.c:113. #define TFLAG(x) ((x) << 8). Shifts the type-flag bits into the high byte of the id arg passed to math_func() so the MF_* numeric ids can occupy the low byte.