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) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 93.6 % 1667 1561 Test Date: 2026-07-23 17:04:59 Functions: 94.9 % 158 150 Legend: Lines:     hit not hit

Function Name	Hit count
Q_lval	9431819
Q_lvalrem	6303023
Q_pval	9427628
Q_pvalrem	6304619
ZV_Z_dvd	1414
ZV_lval	0
ZV_lvalrem	0
ZV_pval	30934
ZV_pvalrem	4183603
ZXV_pval	0
ZXV_pvalrem	0
ZXX_pval	952
ZXX_pvalrem	2849
ZX_gen_pvalrem	3801
ZX_lval	788796
ZX_lvalrem	721
ZX_pval	104292
ZX_pvalrem	4318648
Z_lval	68998002
Z_lvalrem	65076147
Z_lvalrem_stop	118016556
Z_pval	50414163
Z_pvalrem	69974560
Z_pvalrem_DC	2159430
_Fp_div	163005
_domul	2258886
affgc	2590
chk_true_err	189
closure_identical	70
cmp_str	3681020
cmp_universal	89011435
cmp_universal_rec	39285396
cmpfrac	4595760
cmpgen	224
cmpifrac	455849
cmprfrac	81756
col_test	294560
ctop	14
cvstop2	399
cvtop	600646
cvtop2	17625449
cx_approx0	2507104
cx_approx_equal	2499437
ensure_nb	810971
factorial_lval	1995486
frac_lval	381841
frac_val	292596
gabs	53744467
gassoc_proto	2462813
gcmp	231723221
gcmpsg	762273
gcvtop	126
gen_2val	816027
gen_2valrem	4924010
gen_Z_divides	6855
gen_lval	913697
gen_lvalrem	8490006
gen_pval	135226
gen_pvalrem	8502251
gen_pvalrem_DC	11752
gen_z_divides	4935
gequal	244360278
gequal0	2541457328
gequal1	342287988
gequalX	8509509
gequal_try	3195604
gequalm1	74234553
gequalsg	44058
gexpo	889748559
gexpo_safe	890035593
gidentical	123903290
gisexactzero	57171910
glength	5150313
gmax	79310
gmaxgs	0
gmequal_try	28
gmin	12180
gmings	0
gneg	473022608
gneg_i	138747808
gpexponent	90285
gpvaluation	3934
gsigne	84282253
gtolist	5972
gtolong	77
gtranslength	3878
gvaluation	1401625
identicalrr	1547
intdvd	91
is_monomial_test	22631522
is_negative	0
isexactzero	582929667
isless_iu	15102562
isrationalzero	792799664
itop2_coprime	17618519
lexcmp	1628653
lexcmp_i	1628653
lexcmp_s_matvec	21
lexcmp_scal_matvec	357
lexcmp_scal_vecsmall	42
lexcmp_similar	372161
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	13885874
map_proto_lGL	126
mat_test	16366
matsize	1862
minval	137186
mklist	6870
mklist_typ	6926
mklistcopy	70
mkmap	49
normalizepol	99744700
normalizepol_approx	0
normalizepol_lg	946181605
normalizeser	15686279
padic_to_Fl	421719
padic_to_Fp	4550
polequal	12918186
polidentical	5634065
qtop	42
quadtofp	252
r_approx0	1808992
roughtype	3257649
serequal	420
seridentical	14
sizedigit	7
u_lval	71118988
u_lvalrem	90419619
u_lvalrem_stop	136195856
u_pval	137019
u_pvalrem	2634774
vecequal	5577413
vecidentical	5440904
vecindexmax	503448
vecindexmin	183130
vecmax	66207
vecmax0	227037
vecmin	35353
vecmin0	147521
z_lval	1839896
z_lvalrem	87353
z_pval	1318037
z_pvalrem	399
zx_lval	28931

Generated by: LCOV version 2.0-1