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 30711-c92306d4b4) Lines: 1554 1658 93.7 % Date: 2026-02-25 09:24:21 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
closure_identical	70
mklistcopy	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	1204
ZX_gen_pvalrem	1204
ZV_Z_dvd	1309
identicalrr	1547
matsize	1862
affgc	2590
gtranslength	3878
gpvaluation	3934
padic_to_Fp	4550
gen_z_divides	4935
gtolist	5951
mklist	6856
gen_Z_divides	6859
mklist_typ	6912
gen_pvalrem_DC	11756
gmin	12180
mat_test	16366
listpop	21917
zx_lval	28931
ZV_pval	30934
listinsert	35014
listinsert0	35028
vecmin	35234
gequalsg	43988
cx_approx_equal	49981
vecmax	66206
gmax	79310
cmprfrac	81308
z_lvalrem	87344
gpexponent	90215
ZX_pval	101310
gen_pval	132244
u_pval	136772
minval	137186
vecmin0	147402
_Fp_div	163005
vecindexmin	182059
vecmax0	226896
frac_val	292596
col_test	294560
lexcmp_similar	372030
frac_lval	381854
padic_to_Fl	421687
cmpifrac	455583
vecindexmax	503307
cvtop	600618
listput0	724955
ZX_lval	749113
gcmpsg	762248
gen_2val	773845
listput	776125
ensure_nb	810971
gen_lval	871032
z_pval	1317999
gvaluation	1401464
polidentical	1528750
lexcmp_i	1616256
lexcmp	1616257
r_approx0	1809702
z_lval	1836721
factorial_lval	1992863
Z_pvalrem_DC	2185004
_domul	2258886
gassoc_proto	2463116
cx_approx0	2558243
u_pvalrem	2624803
gequal_try	3194295
roughtype	3232858
cmp_str	3681020
ZV_pvalrem	4182974
ZX_pvalrem	4301371
cmpfrac	4589519
gen_2valrem	4914617
glength	5148759
vecidentical	5441587
vecequal	5528769
Q_lvalrem	6302776
Q_pvalrem	6304379
gen_lvalrem	8472104
gen_pvalrem	8484330
gequalX	8485625
Q_pval	9423893
Q_lval	9428085
polequal	12730242
normalizeser	13331097
isless_iu	15092651
itop2_coprime	17612706
cvtop2	17619915
is_monomial_test	22657928
map_proto_lG	37461212
cmp_universal_rec	39282805
Z_pval	50376798
gabs	53430906
gidentical	54824557
gisexactzero	57126478
Z_lvalrem	64494914
Z_pvalrem	69394679
Z_lval	70312182
u_lval	71597029
gequalm1	74233535
gsigne	81361049
cmp_universal	88994730
u_lvalrem	89636464
normalizepol	99407358
Z_lvalrem_stop	117187478
gneg_i	129903748
u_lvalrem_stop	134669528
gequal	242201292
gcmp	282795413
gequal1	341863519
gneg	463380914
isexactzero	576195054
isrationalzero	768525211
gexpo	842139649
gexpo_safe	842421644
normalizepol_lg	937852756
gequal0	2498503837

Generated by: LCOV version 1.16