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 30571-c0dfe82732) Lines: 1865 1987 93.9 % Date: 2025-12-11 09:22:11 Functions: 105 105 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
Leading_is_neg	57793121
Q_to_Fp	226838
Qdivii	141945730
Qdivis	1592361
Qdiviu	148710679
Zp_nosquare_m1	42
_serprec	7185086
addQp	4762975
addRc	307905897
addRq	1288
addTp	7
add_intmod_same	3344847
add_rfrac	3018271
add_rfrac_scal	8811954
add_scal	42811293
add_ser_scal	414401
addqf	77
addsub_frac	40600049
addsub_frac_i	14121449
addsub_polmod	7203
addsub_polmod_scal	13456507
addsub_pp	19972390
conj_i	31494790
conjvec	84
divRc	2286559
divRq	301
divTp	3674
div_T_scal	7133755
div_intmod_same	341928
div_polmod_same	37016
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	23356484
divfq	42
divpT	1204917
divpp	13212888
divqf	63
divrunextu	213477866
fill_ser	5715854
fix_rfrac	207739
gadd	6140734860
gaddsg	270740319
gconj	390135
gdiv	439086256
gdivgs	13002616
gdivgu	60367390
gdivgunextu	1583803
ginv	36600756
gmul	8687403069
gmul2n	143738238
gmulsg	236638536
gmulug	282637823
gred_rfrac2	44825781
gred_rfrac_simple	57797210
gsqr	1184063096
gsub	2887105464
gsubsg	3234913
init_ser	5728306
inv_polmod	189690
is_ext_qfr	98
kro_quad	35
mkpadic_mod	24593482
mulRc	354502266
mulRq	2324
mulTp	4984920
mul_gen_rfrac	161432
mul_intmod_same	2629320
mul_polmod	2674945
mul_polmod_same	8529774
mul_polmod_scal	3239013
mul_rfrac	7910299
mul_rfrac_scal	10455087
mul_scal	154341249
mul_self_scal	7650843
mul_ser_scal	321223
mulcIR	11647291
mulcc	279007542
mulcxI	15630042
mulcxmI	2985858
mulcxpowIs	5563228
mulpp	17503057
mulqf	28
mulqq	1127
mulrfrac	37790886
quad_polmod_conj	18403
quad_polmod_mul	5860209
quad_polmod_norm	18403
rfrac_denom_mul_scal	9959393
ser_add	3592942
ser_normalize	7658
setfrac	15000386
sqr_polmod	419385
sqr_ser_part	113207
sqrq	70
sub_intmod_same	1027929
transtype	154403389
utoi_sign	64544083
warn_coercion	105

Generated by: LCOV version 1.16