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 30711-c92306d4b4) Lines: 1880 2002 93.9 % Date: 2026-02-25 09:24:21 Functions: 104 104 100.0 % 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	112
divRq	301
mulqq	1127
addRq	1302
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	189698
fix_rfrac	206780
Q_to_Fp	226838
div_rfrac_pol	262365
mul_ser_scal	321174
div_intmod_same	341514
gconj	390135
add_ser_scal	414450
sqr_polmod	419385
div_ser	774266
sub_intmod_same	1021769
div_rfrac	1187237
divpT	1204910
div_ser_scal	1343391
gdivgunextu	1583803
Qdivis	1592286
divRc	2286158
mul_polmod	2674945
mul_intmod_same	2788953
mulcxmI	2985879
add_rfrac	3017228
gsubsg	3235138
mul_polmod_scal	3238992
add_intmod_same	3338896
ser_add	3592956
addQp	4762997
mulTp	4985899
mulcxpowIs	5563518
pol2ser	5638655
quad_polmod_mul	5860209
div_T_scal	7125959
_serprec	7185114
mul_self_scal	7646401
mul_rfrac	7910299
mul_polmod_same	8529774
add_rfrac_scal	8812213
div_scal_pol	9258220
div_scal_T	9266463
rfrac_denom_mul_scal	9959029
mul_rfrac_scal	10454093
mulcIR	11645652
gdivgs	13001690
divpp	13211854
addsub_polmod_scal	13456528
addsub_frac_i	14120721
setfrac	14999500
mulcxI	15630389
mulpp	17505424
addsub_pp	19974393
divcR	23352664
mkpadic_mod	24594386
conj_i	31492117
ginv	36601173
mulrfrac	37740897
addsub_frac	40598721
add_scal	42826865
gred_rfrac2	44823170
Leading_is_neg	57790181
gred_rfrac_simple	57794270
gdivgu	60480576
utoi_sign	64650828
Qdivii	141924356
gmul2n	143715722
Qdiviu	148802058
mul_scal	154345757
transtype	154397971
divrunextu	213711231
gmulsg	241006783
gaddsg	270740547
mulcc	279009171
gmulug	283683119
addRc	307874383
mulRc	354578064
gdiv	439093415
gsqr	1210013167
gsub	2890522574
gadd	6179833527
gmul	8729484113

Generated by: LCOV version 1.16