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 30862-ea47bd413c) Lines: 1554 1658 93.7 % Date: 2026-05-05 09:26:54 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
ZV_Z_dvd	1358
ZXX_pvalrem	1400
ZX_gen_pvalrem	1400
identicalrr	1547
matsize	1862
affgc	2590
gtranslength	3878
gpvaluation	3934
padic_to_Fp	4550
gen_z_divides	4935
gtolist	5965
gen_Z_divides	6854
mklist	6870
mklist_typ	6926
gen_pvalrem_DC	11751
gmin	12180
mat_test	16366
listpop	21917
zx_lval	28931
ZV_pval	30934
listinsert	35014
listinsert0	35028
vecmin	35318
gequalsg	43988
vecmax	66203
minval	77315
gmax	79310
cmprfrac	81756
z_lvalrem	87345
gpexponent	90285
ZX_pval	102493
gen_pval	133427
u_pval	136892
vecmin0	147486
_Fp_div	163005
vecindexmin	183095
vecmax0	227033
frac_val	292596
col_test	294560
lexcmp_similar	372159
frac_lval	381834
padic_to_Fl	421705
cmpifrac	455947
vecindexmax	503445
cvtop	600617
listput0	724955
gcmpsg	762252
ZX_lval	766536
listput	776125
gen_2val	791968
ensure_nb	810971
gen_lval	889638
z_pval	1318025
gvaluation	1396214
lexcmp	1618040
lexcmp_i	1618040
r_approx0	1809553
z_lval	1836770
factorial_lval	1993214
Z_pvalrem_DC	2184999
_domul	2258886
gassoc_proto	2463132
cx_approx_equal	2496154
cx_approx0	2507776
u_pvalrem	2624865
roughtype	3236422
cmp_str	3681020
ZV_pvalrem	4182917
ZX_pvalrem	4304984
cmpfrac	4593173
gen_2valrem	4914748
glength	5150285
gequal_try	5317385
vecidentical	5441421
vecequal	5574578
polidentical	5629340
Q_lvalrem	6302843
Q_pvalrem	6304443
gen_lvalrem	8475665
gen_pvalrem	8487880
gequalX	8508171
Q_pval	9425826
Q_lval	9430023
polequal	10685443
isless_iu	15159641
normalizeser	15685929
itop2_coprime	17612743
cvtop2	17620034
is_monomial_test	19829394
map_proto_lG	37618943
cmp_universal_rec	39284566
gisexactzero	47329234
Z_pval	50390807
gabs	53577656
Z_lvalrem	64497005
Z_pvalrem	69396452
Z_lval	70328553
u_lval	71614410
gequalm1	74234621
gsigne	83748665
cmp_universal	89006469
u_lvalrem	89652787
normalizepol	99623038
Z_lvalrem_stop	116711229
gidentical	123816261
u_lvalrem_stop	134090937
gneg_i	140699573
gequal	241749525
gcmp	283030522
gequal1	339966093
gneg	467174842
isexactzero	745203206
gexpo	843216868
gexpo_safe	843507048
isrationalzero	905299290
normalizepol_lg	963975117
gequal0	2704143389

Generated by: LCOV version 1.16