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 - gen2.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30824-18397de1d0) Lines: 1554 1658 93.7 % Date: 2026-04-19 09:25:48 Functions: 149 156 95.5 % Legend: Lines: hit not hit

Function Name	Hit count
Q_lval	9430148
Q_lvalrem	6302817
Q_pval	9425954
Q_pvalrem	6304425
ZV_Z_dvd	1309
ZV_lval	0
ZV_lvalrem	0
ZV_pval	30934
ZV_pvalrem	4182936
ZXV_pvalrem	0
ZXX_pvalrem	1400
ZX_gen_pvalrem	1400
ZX_lval	766536
ZX_lvalrem	721
ZX_pval	102493
ZX_pvalrem	4304942
Z_lval	70327777
Z_lvalrem	64495558
Z_lvalrem_stop	116687705
Z_pval	50389827
Z_pvalrem	69394903
Z_pvalrem_DC	2184977
_Fp_div	163005
_domul	2258886
affgc	2590
chk_true_err	189
closure_identical	70
cmp_str	3681020
cmp_universal	89002244
cmp_universal_rec	39283439
cmpfrac	4592193
cmpgen	161
cmpifrac	455744
cmprfrac	81308
col_test	294560
ctop	14
cvstop2	399
cvtop	600618
cvtop2	17620542
cx_approx0	2507711
cx_approx_equal	2496154
ensure_nb	810971
factorial_lval	1993247
frac_lval	381839
frac_val	292596
gabs	53576577
gassoc_proto	2463185
gcmp	282898937
gcmpsg	762230
gcvtop	126
gen_2val	791968
gen_2valrem	4914977
gen_Z_divides	6854
gen_lval	889638
gen_lvalrem	8475658
gen_pval	133427
gen_pvalrem	8487860
gen_pvalrem_DC	11751
gen_z_divides	4935
gequal	240412334
gequal0	2693226466
gequal1	339969449
gequalX	8508151
gequal_try	5316307
gequalm1	74233556
gequalsg	43988
gexpo	842824428
gexpo_safe	843115268
gidentical	123814601
gisexactzero	47328030
glength	5149977
gmax	79310
gmaxgs	0
gmequal_try	28
gmin	12180
gmings	0
gneg	466033994
gneg_i	140242867
gpexponent	90229
gpvaluation	3934
gsigne	83744208
gtolist	5965
gtolong	77
gtranslength	3878
gvaluation	1396053
identicalrr	1547
intdvd	91
is_monomial_test	19829064
is_negative	0
isexactzero	743501667
isless_iu	15152276
isrationalzero	900921260
itop2_coprime	17613029
lexcmp	1617670
lexcmp_i	1617670
lexcmp_s_matvec	21
lexcmp_scal_matvec	357
lexcmp_scal_vecsmall	42
lexcmp_similar	372035
lexcmp_vec_mat	98
lexcmp_vecsmall_mat	42
lexcmp_vecsmall_other	196
lexcmp_vecsmall_vec	154
lexcmpgs	42
lexcmpsg	343
list_cmp	343
listinsert	35014
listinsert0	35028
listpop	21917
listpop0	56
listput	776125
listput0	724955
listsort	21
map_proto_G	462
map_proto_lG	37398515
map_proto_lGL	126
mat_test	16366
matsize	1862
minval	77315
mklist	6870
mklist_typ	6926
mklistcopy	70
mkmap	49
normalizepol	99611025
normalizepol_approx	0
normalizepol_lg	962209223
normalizeser	15095790
padic_to_Fl	421694
padic_to_Fp	4550
polequal	10557579
polidentical	5629340
qtop	42
quadtofp	252
r_approx0	1809502
roughtype	3235683
serequal	420
seridentical	14
sizedigit	7
u_lval	71608910
u_lvalrem	89648764
u_lvalrem_stop	134058337
u_pval	136724
u_pvalrem	2624940
vecequal	5573915
vecidentical	5441458
vecindexmax	503300
vecindexmin	182759
vecmax	66199
vecmax0	226889
vecmin	35234
vecmin0	147402
z_lval	1836751
z_lvalrem	87344
z_pval	1318023
z_pvalrem	399
zx_lval	28931

Generated by: LCOV version 1.16