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 30605-980f9eb85c) Lines: 1554 1658 93.7 % Date: 2026-01-11 09:21:30 Functions: 149 156 95.5 % Legend: Lines: hit not hit

Function Name	Hit count
ZV_lval	0
ZV_lvalrem	0
ZXV_pvalrem	0
gmaxgs	0
gmings	0
is_negative	0
normalizepol_approx	0
sizedigit	7
ctop	14
seridentical	14
lexcmp_s_matvec	21
listsort	21
gmequal_try	28
lexcmp_scal_vecsmall	42
lexcmp_vecsmall_mat	42
lexcmpgs	42
qtop	42
mkmap	49
listpop0	56
mklistcopy	63
closure_identical	70
gtolong	77
intdvd	91
lexcmp_vec_mat	98
gcvtop	126
map_proto_lGL	126
lexcmp_vecsmall_vec	154
cmpgen	161
chk_true_err	189
lexcmp_vecsmall_other	196
quadtofp	252
lexcmpsg	343
list_cmp	343
lexcmp_scal_matvec	357
cvstop2	399
z_pvalrem	399
serequal	420
map_proto_G	462
ZX_lvalrem	721
ZXX_pvalrem	1197
ZX_gen_pvalrem	1197
ZV_Z_dvd	1309
identicalrr	1547
matsize	1862
affgc	2590
gtranslength	3878
gpvaluation	3934
padic_to_Fp	4298
gen_z_divides	4935
gtolist	5930
mklist	6835
gen_Z_divides	6859
mklist_typ	6891
gen_pvalrem_DC	11756
gmin	12179
mat_test	16366
listpop	21917
zx_lval	28931
ZV_pval	30934
listinsert	35014
listinsert0	35028
vecmin	35199
gequalsg	43988
cx_approx_equal	49981
vecmax	66205
gmax	79310
cmprfrac	81308
z_lvalrem	87319
gpexponent	90215
ZX_pval	101303
gen_pval	132237
u_pval	136884
minval	137186
vecmin0	147367
_Fp_div	163005
vecindexmin	182024
vecmax0	226895
frac_val	292596
col_test	294560
lexcmp_similar	372034
frac_lval	381848
padic_to_Fl	421695
cmpifrac	455583
vecindexmax	503306
cvtop	600548
listput0	724955
ZX_lval	748889
gcmpsg	762248
gen_2val	773614
listput	776125
ensure_nb	810971
gen_lval	870801
z_pval	1318008
gvaluation	1400173
polidentical	1528749
lexcmp	1616265
lexcmp_i	1616265
r_approx0	1809543
z_lval	1836757
factorial_lval	1992897
Z_pvalrem_DC	2184806
_domul	2258886
gassoc_proto	2463130
cx_approx0	2558060
u_pvalrem	2624830
gequal_try	3194295
roughtype	3232872
cmp_str	3681020
ZV_pvalrem	4182998
ZX_pvalrem	4301160
cmpfrac	4589516
gen_2valrem	4914584
glength	5148763
vecidentical	5441632
vecequal	5528554
Q_lvalrem	6302840
Q_pvalrem	6304433
gen_lvalrem	8471944
gen_pvalrem	8484159
gequalX	8485541
Q_pval	9423842
Q_lval	9428037
polequal	12730285
normalizeser	13407890
isless_iu	15086121
itop2_coprime	17611414
cvtop2	17618819
is_monomial_test	22658907
map_proto_lG	37456796
cmp_universal_rec	39283642
Z_pval	50322569
gabs	53430463
gidentical	54830908
gisexactzero	57213819
Z_lvalrem	64489545
Z_pvalrem	69391300
Z_lval	70257841
u_lval	71591022
gequalm1	74233486
gsigne	81254308
cmp_universal	88996284
u_lvalrem	89590146
normalizepol	99396630
Z_lvalrem_stop	116836795
gneg_i	129772080
u_lvalrem_stop	134066582
gequal	242438157
gcmp	298820248
gequal1	341890481
gneg	463362775
isexactzero	576029977
isrationalzero	768844209
gexpo	842044404
gexpo_safe	842337430
normalizepol_lg	937994120
gequal0	2495093852

Generated by: LCOV version 1.16