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 30861-40e9da58f9) Lines: 1554 1658 93.7 % Date: 2026-05-04 09:27:01 Functions: 149 156 95.5 % Legend: Lines: hit not hit

Function Name	Hit count
Q_lval	9430180
Q_lvalrem	6302868
Q_pval	9425986
Q_pvalrem	6304461
ZV_Z_dvd	1358
ZV_lval	0
ZV_lvalrem	0
ZV_pval	30934
ZV_pvalrem	4182910
ZXV_pvalrem	0
ZXX_pvalrem	1400
ZX_gen_pvalrem	1400
ZX_lval	766536
ZX_lvalrem	721
ZX_pval	102493
ZX_pvalrem	4304963
Z_lval	70329212
Z_lvalrem	64498405
Z_lvalrem_stop	116876913
Z_pval	50391055
Z_pvalrem	69397620
Z_pvalrem_DC	2185196
_Fp_div	163005
_domul	2258886
affgc	2590
chk_true_err	189
closure_identical	70
cmp_str	3681020
cmp_universal	89007410
cmp_universal_rec	39284977
cmpfrac	4593173
cmpgen	161
cmpifrac	455947
cmprfrac	81756
col_test	294560
ctop	14
cvstop2	399
cvtop	600626
cvtop2	17621183
cx_approx0	2507538
cx_approx_equal	2496154
ensure_nb	810971
factorial_lval	1993289
frac_lval	381840
frac_val	292596
gabs	53578924
gassoc_proto	2463180
gcmp	282831497
gcmpsg	762258
gcvtop	126
gen_2val	791968
gen_2valrem	4914757
gen_Z_divides	6854
gen_lval	889638
gen_lvalrem	8475633
gen_pval	133427
gen_pvalrem	8487856
gen_pvalrem_DC	11751
gen_z_divides	4935
gequal	241749673
gequal0	2704176593
gequal1	339970508
gequalX	8508171
gequal_try	5317385
gequalm1	74234619
gequalsg	43988
gexpo	843184506
gexpo_safe	843477718
gidentical	123816480
gisexactzero	47329141
glength	5150285
gmax	79310
gmaxgs	0
gmequal_try	28
gmin	12180
gmings	0
gneg	467185323
gneg_i	140692371
gpexponent	90285
gpvaluation	3934
gsigne	83748540
gtolist	5965
gtolong	77
gtranslength	3878
gvaluation	1396214
identicalrr	1547
intdvd	91
is_monomial_test	19829314
is_negative	0
isexactzero	745208634
isless_iu	15153247
isrationalzero	905300236
itop2_coprime	17613659
lexcmp	1618048
lexcmp_i	1618048
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	37417629
map_proto_lGL	126
mat_test	16366
matsize	1862
minval	77315
mklist	6870
mklist_typ	6926
mklistcopy	70
mkmap	49
normalizepol	99623838
normalizepol_approx	0
normalizepol_lg	963994195
normalizeser	15685929
padic_to_Fl	421705
padic_to_Fp	4550
polequal	10685466
polidentical	5629340
qtop	42
quadtofp	252
r_approx0	1809361
roughtype	3236439
serequal	420
seridentical	14
sizedigit	7
u_lval	71614171
u_lvalrem	89653816
u_lvalrem_stop	134265556
u_pval	136780
u_pvalrem	2624896
vecequal	5574581
vecidentical	5441462
vecindexmax	503442
vecindexmin	183095
vecmax	66202
vecmax0	227031
vecmin	35318
vecmin0	147486
z_lval	1836791
z_lvalrem	87348
z_pval	1318034
z_pvalrem	399
zx_lval	28931

Generated by: LCOV version 1.16