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 30676-32b8a71ec1) Lines: 1554 1658 93.7 % Date: 2026-02-14 09:22:40 Functions: 149 156 95.5 % Legend: Lines: hit not hit

Function Name	Hit count
Q_lval	9428043
Q_lvalrem	6302749
Q_pval	9423849
Q_pvalrem	6304346
ZV_Z_dvd	1309
ZV_lval	0
ZV_lvalrem	0
ZV_pval	30934
ZV_pvalrem	4182943
ZXV_pvalrem	0
ZXX_pvalrem	1197
ZX_gen_pvalrem	1197
ZX_lval	748889
ZX_lvalrem	721
ZX_pval	101303
ZX_pvalrem	4301115
Z_lval	70259205
Z_lvalrem	64493758
Z_lvalrem_stop	117147440
Z_pval	50323988
Z_pvalrem	69395056
Z_pvalrem_DC	2184655
_Fp_div	163005
_domul	2258886
affgc	2590
chk_true_err	189
closure_identical	70
cmp_str	3681020
cmp_universal	88996561
cmp_universal_rec	39283365
cmpfrac	4589519
cmpgen	161
cmpifrac	455583
cmprfrac	81308
col_test	294560
ctop	14
cvstop2	399
cvtop	600619
cvtop2	17620156
cx_approx0	2558196
cx_approx_equal	49981
ensure_nb	810971
factorial_lval	1992860
frac_lval	381849
frac_val	292596
gabs	53433502
gassoc_proto	2463112
gcmp	298646333
gcmpsg	762246
gcvtop	126
gen_2val	773614
gen_2valrem	4914515
gen_Z_divides	6859
gen_lval	870801
gen_lvalrem	8471877
gen_pval	132237
gen_pvalrem	8484067
gen_pvalrem_DC	11756
gen_z_divides	4935
gequal	242201172
gequal0	2498389107
gequal1	341860912
gequalX	8485540
gequal_try	3194295
gequalm1	74233535
gequalsg	43988
gexpo	842107098
gexpo_safe	842396238
gidentical	54824601
gisexactzero	57126582
glength	5148763
gmax	79310
gmaxgs	0
gmequal_try	28
gmin	12180
gmings	0
gneg	463330328
gneg_i	129831112
gpexponent	90215
gpvaluation	3934
gsigne	81361029
gtolist	5930
gtolong	77
gtranslength	3878
gvaluation	1401464
identicalrr	1547
intdvd	91
is_monomial_test	22657967
is_negative	0
isexactzero	576175272
isless_iu	15086045
isrationalzero	768522958
itop2_coprime	17612678
lexcmp	1616261
lexcmp_i	1616261
lexcmp_s_matvec	21
lexcmp_scal_matvec	357
lexcmp_scal_vecsmall	42
lexcmp_similar	372033
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	37327539
map_proto_lGL	126
mat_test	16366
matsize	1862
minval	137186
mklist	6835
mklist_typ	6891
mklistcopy	63
mkmap	49
normalizepol	99402596
normalizepol_approx	0
normalizepol_lg	937786038
normalizeser	13331069
padic_to_Fl	421690
padic_to_Fp	4550
polequal	12730245
polidentical	1528750
qtop	42
quadtofp	252
r_approx0	1809643
roughtype	3232864
serequal	420
seridentical	14
sizedigit	7
u_lval	71592751
u_lvalrem	89594363
u_lvalrem_stop	134390305
u_pval	136779
u_pvalrem	2624774
vecequal	5528767
vecidentical	5441605
vecindexmax	503301
vecindexmin	182059
vecmax	66200
vecmax0	226890
vecmin	35234
vecmin0	147402
z_lval	1836739
z_lvalrem	87344
z_pval	1318007
z_pvalrem	399
zx_lval	28931

Generated by: LCOV version 1.16