Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30610-dfc8ed42cd) Lines: 1865 1987 93.9 % Date: 2026-01-14 09:22:13 Functions: 105 105 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
addTp	7
mulqf	28
kro_quad	35
Zp_nosquare_m1	42
divfq	42
divqf	63
sqrq	70
addqf	77
conjvec	84
is_ext_qfr	98
warn_coercion	105
divRq	301
mulqq	1127
addRq	1288
mulRq	2324
divTp	3674
addsub_polmod	7203
ser_normalize	7658
quad_polmod_conj	18403
quad_polmod_norm	18403
div_scal_ser	19096
div_rfrac_scal	32139
div_polmod_same	37016
div_scal_rfrac	37767
sqr_ser_part	113207
mul_gen_rfrac	161432
inv_polmod	189686
fix_rfrac	207739
Q_to_Fp	226838
div_rfrac_pol	262344
mul_ser_scal	321223
div_intmod_same	341937
gconj	390135
add_ser_scal	414401
sqr_polmod	419385
div_ser	774252
sub_intmod_same	1027929
div_rfrac	1187237
divpT	1204917
div_ser_scal	1343391
gdivgunextu	1583803
Qdivis	1592287
divRc	2286172
mul_intmod_same	2629396
mul_polmod	2674945
mulcxmI	2985930
add_rfrac	3018271
gsubsg	3234917
mul_polmod_scal	3238984
add_intmod_same	3344858
ser_add	3592942
addQp	4763003
mulTp	4984978
mulcxpowIs	5563963
fill_ser	5715854
init_ser	5728306
quad_polmod_mul	5860209
div_T_scal	7128503
_serprec	7185086
mul_self_scal	7645863
mul_rfrac	7910299
mul_polmod_same	8529774
add_rfrac_scal	8811940
div_scal_pol	9257079
div_scal_T	9265322
rfrac_denom_mul_scal	9959106
mul_rfrac_scal	10454863
mulcIR	11645622
gdivgs	13001581
divpp	13212952
addsub_polmod_scal	13456507
addsub_frac_i	14120393
setfrac	14999098
mulcxI	15627907
mulpp	17503068
addsub_pp	19972523
divcR	23352256
mkpadic_mod	24593387
conj_i	31490894
ginv	36594890
mulrfrac	37791169
addsub_frac	40598203
add_scal	42809354
gred_rfrac2	44825557
Leading_is_neg	57792799
gred_rfrac_simple	57796888
gdivgu	60367328
utoi_sign	64531515
Qdivii	141903347
gmul2n	143701236
Qdiviu	148668440
mul_scal	154321991
transtype	154402745
divrunextu	213570612
gmulsg	236558591
gaddsg	270740216
mulcc	279004110
gmulug	282637823
addRc	307843085
mulRc	354344579
gdiv	439029519
gsqr	1184003419
gsub	2887112012
gadd	6137147605
gmul	8684862331

Generated by: LCOV version 1.16