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 v2.18.1 lcov report (development 31041-bd73e9fcdd) Lines: 94.0 % 2028 1907 Test Date: 2026-07-22 22:45:42 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	192251
fix_rfrac	207018
Q_to_Fp	226838
div_rfrac_pol	262365
mul_ser_scal	326494
div_intmod_same	341500
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	2582080
mul_polmod	2674945
add_rfrac	3017298
mul_intmod_same	3138696
mulcxmI	3166425
gsubsg	3271588
mul_polmod_scal	3288167
divRc	3408011
add_intmod_same	3416149
ser_add	4257657
addQp	4763037
mulTp	4985910
mulcxpowIs	5746459
quad_polmod_mul	5861735
pol2ser	6631815
div_T_scal	7412314
mul_rfrac	7910397
mul_self_scal	8027393
_serprec	8514516
mul_polmod_same	8646527
add_rfrac_scal	8812479
div_scal_pol	9254006
div_scal_T	9263698
rfrac_denom_mul_scal	9959295
mul_rfrac_scal	10454352
mulcIR	11900098
divpp	13212419
addsub_polmod_scal	13604332
addsub_frac_i	14584195
setfrac	15555600
mulcxI	15677916
mulpp	17505614
addsub_pp	19974091
mkpadic_mod	24594801
divcR	24801170
gdivgs	29176177
conj_i	32592171
mulrfrac	38167471
ginv	38787012
addsub_frac	41416191
add_scal	43070212
gred_rfrac	44825263
Leading_is_neg	57792183
gred_rfrac_simple	57797147
gdivgu	61977051
utoi_sign	65599229
Qdivii	144868112
Qdiviu	152508083
base_change	154407967
gmul2n	155001957
mul_scal	155040995
divrunextu	214278705
gmulsg	261418049
gaddsg	270841641
gmulug	283956448
mulcc	286251189
addRc	313029612
mulRc	358400079
gdiv	464150565
gsqr	1217787972
gsub	2933498489
gadd	6314982618
gmul	8880109104

Generated by: LCOV version 2.0-1