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) Coverage Total Hit Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 94.0 % 2028 1906 Test Date: 2026-10-08 17:02:35 Functions: 100.0 % 104 104 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	112
divRq	301
mulqq	1127
addRq	1596
mulRq	2324
divTp	3674
addsub_polmod	7203
ser_normalize	7658
quad_polmod_conj	18725
quad_polmod_norm	18725
div_scal_ser	19292
div_rfrac_scal	32139
div_scal_rfrac	37767
div_polmod_same	38087
sqr_ser_part	114411
mul_gen_rfrac	161432
inv_polmod	192253
fix_rfrac	207018
Q_to_Fp	226838
div_rfrac_pol	262365
mul_ser_scal	326494
div_intmod_same	341513
gconj	390611
add_ser_scal	425209
sqr_polmod	426147
div_ser	908987
sub_intmod_same	1031401
div_rfrac	1187251
divpT	1204910
gdivgunextu	1583943
div_ser_scal	1608941
Qdivis	2587664
mul_polmod	2674945
add_rfrac	3017298
mul_intmod_same	3138827
mulcxmI	3166662
gsubsg	3271588
mul_polmod_scal	3288167
divRc	3408135
add_intmod_same	3416162
ser_add	4257657
addQp	4763203
mulTp	4985951
mulcxpowIs	5749844
quad_polmod_mul	5861735
pol2ser	6631815
div_T_scal	7412737
mul_rfrac	7910397
mul_self_scal	8028330
_serprec	8514516
mul_polmod_same	8646527
add_rfrac_scal	8812479
div_scal_pol	9254006
div_scal_T	9263698
rfrac_denom_mul_scal	9959296
mul_rfrac_scal	10454352
mulcIR	11902151
divpp	13216944
addsub_polmod_scal	13604334
addsub_frac_i	14593627
setfrac	15562283
mulcxI	15680824
mulpp	17506470
addsub_pp	19978757
mkpadic_mod	24599342
divcR	24801967
gdivgs	29789303
conj_i	32594556
mulrfrac	38175022
addsub_frac	41416416
add_scal	43070706
gred_rfrac	44825263
ginv	49348857
Leading_is_neg	57792184
gred_rfrac_simple	57797148
gdivgu	61985243
utoi_sign	65809871
Qdivii	146455777
Qdiviu	154021578
base_change	154407970
gmul2n	155005658
mul_scal	155047918
divrunextu	216421240
gmulsg	262170429
gaddsg	270842479
gmulug	283956448
mulcc	286512264
addRc	313302061
mulRc	360942419
gdiv	465798106
gsqr	1218324638
gsub	2937866235
gadd	6605165955
gmul	9176344456

Generated by: LCOV version 2.0-1