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
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	66202
minval	77315
gmax	79310
cmprfrac	81756
z_lvalrem	87348
gpexponent	90285
ZX_pval	102493
gen_pval	133427
u_pval	136780
vecmin0	147486
_Fp_div	163005
vecindexmin	183095
vecmax0	227031
frac_val	292596
col_test	294560
lexcmp_similar	372161
frac_lval	381840
padic_to_Fl	421705
cmpifrac	455947
vecindexmax	503442
cvtop	600626
listput0	724955
gcmpsg	762258
ZX_lval	766536
listput	776125
gen_2val	791968
ensure_nb	810971
gen_lval	889638
z_pval	1318034
gvaluation	1396214
lexcmp	1618048
lexcmp_i	1618048
r_approx0	1809361
z_lval	1836791
factorial_lval	1993289
Z_pvalrem_DC	2185196
_domul	2258886
gassoc_proto	2463180
cx_approx_equal	2496154
cx_approx0	2507538
u_pvalrem	2624896
roughtype	3236439
cmp_str	3681020
ZV_pvalrem	4182910
ZX_pvalrem	4304963
cmpfrac	4593173
gen_2valrem	4914757
glength	5150285
gequal_try	5317385
vecidentical	5441462
vecequal	5574581
polidentical	5629340
Q_lvalrem	6302868
Q_pvalrem	6304461
gen_lvalrem	8475633
gen_pvalrem	8487856
gequalX	8508171
Q_pval	9425986
Q_lval	9430180
polequal	10685466
isless_iu	15153247
normalizeser	15685929
itop2_coprime	17613659
cvtop2	17621183
is_monomial_test	19829314
map_proto_lG	37417629
cmp_universal_rec	39284977
gisexactzero	47329141
Z_pval	50391055
gabs	53578924
Z_lvalrem	64498405
Z_pvalrem	69397620
Z_lval	70329212
u_lval	71614171
gequalm1	74234619
gsigne	83748540
cmp_universal	89007410
u_lvalrem	89653816
normalizepol	99623838
Z_lvalrem_stop	116876913
gidentical	123816480
u_lvalrem_stop	134265556
gneg_i	140692371
gequal	241749673
gcmp	282831497
gequal1	339970508
gneg	467185323
isexactzero	745208634
gexpo	843184506
gexpo_safe	843477718
isrationalzero	905300236
normalizepol_lg	963994195
gequal0	2704176593

Generated by: LCOV version 1.16