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 30622-caa25a75db) Lines: 1865 1987 93.9 % Date: 2026-01-22 09:18:00 Functions: 105 105 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
Leading_is_neg	57792799
Q_to_Fp	226838
Qdivii	139463052
Qdivis	1591089
Qdiviu	146334612
Zp_nosquare_m1	42
_serprec	7185086
addQp	4763039
addRc	300621050
addRq	1275
addTp	7
add_intmod_same	3344287
add_rfrac	3018271
add_rfrac_scal	8811940
add_scal	42568800
add_ser_scal	414401
addqf	77
addsub_frac	40415484
addsub_frac_i	14024651
addsub_polmod	7203
addsub_polmod_scal	13451620
addsub_pp	19971365
conj_i	31014178
conjvec	84
divRc	2224048
divRq	301
divTp	3674
div_T_scal	6954163
div_intmod_same	341626
div_polmod_same	37000
div_rfrac	1187237
div_rfrac_pol	262344
div_rfrac_scal	32139
div_scal_T	9265322
div_scal_pol	9257079
div_scal_rfrac	37767
div_scal_ser	19096
div_ser	774252
div_ser_scal	1343391
divcR	22924934
divfq	42
divpT	1204917
divpp	13210930
divqf	63
divrunextu	213294933
fill_ser	5715854
fix_rfrac	207739
gadd	6064405533
gaddsg	270735987
gconj	389794
gdiv	434432597
gdivgs	12858745
gdivgu	60307846
gdivgunextu	1583803
ginv	36038275
gmul	8582926296
gmul2n	141040146
gmulsg	233209902
gmulug	282635790
gred_rfrac2	44825557
gred_rfrac_simple	57796888
gsqr	1174903348
gsub	2843360621
gsubsg	3233877
init_ser	5728306
inv_polmod	189670
is_ext_qfr	98
kro_quad	35
mkpadic_mod	24591777
mulRc	346614617
mulRq	2311
mulTp	4985134
mul_gen_rfrac	161432
mul_intmod_same	2628862
mul_polmod	2674945
mul_polmod_same	8529742
mul_polmod_scal	3238260
mul_rfrac	7910299
mul_rfrac_scal	10454863
mul_scal	152774891
mul_self_scal	7574090
mul_ser_scal	321223
mulcIR	11098006
mulcc	272831406
mulcxI	14989344
mulcxmI	2985907
mulcxpowIs	5563987
mulpp	17502827
mulqf	28
mulqq	1123
mulrfrac	37763717
quad_polmod_conj	18403
quad_polmod_mul	5860204
quad_polmod_norm	18403
rfrac_denom_mul_scal	9959106
ser_add	3592942
ser_normalize	7658
setfrac	14895573
sqr_polmod	419385
sqr_ser_part	113207
sqrq	70
sub_intmod_same	1027929
transtype	154402745
utoi_sign	63608360
warn_coercion	105

Generated by: LCOV version 1.16