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 30764-6b81f1f3fa) Lines: 1554 1658 93.7 % Date: 2026-03-23 09:27:26 Functions: 149 156 95.5 % Legend: Lines: hit not hit

Function Name	Hit count
Q_lval	9430283
Q_lvalrem	6302822
Q_pval	9426093
Q_pvalrem	6304418
ZV_Z_dvd	1309
ZV_lval	0
ZV_lvalrem	0
ZV_pval	30934
ZV_pvalrem	4182924
ZXV_pvalrem	0
ZXX_pvalrem	1400
ZX_gen_pvalrem	1400
ZX_lval	766410
ZX_lvalrem	721
ZX_pval	102493
ZX_pvalrem	4305381
Z_lval	70328214
Z_lvalrem	64496539
Z_lvalrem_stop	117489666
Z_pval	50390351
Z_pvalrem	69395970
Z_pvalrem_DC	2184942
_Fp_div	163005
_domul	2258886
affgc	2590
chk_true_err	189
closure_identical	70
cmp_str	3681020
cmp_universal	89004336
cmp_universal_rec	39284017
cmpfrac	4590919
cmpgen	161
cmpifrac	455583
cmprfrac	81308
col_test	294560
ctop	14
cvstop2	399
cvtop	600621
cvtop2	17620935
cx_approx0	2557865
cx_approx_equal	49981
ensure_nb	810971
factorial_lval	1993342
frac_lval	381839
frac_val	292596
gabs	53583125
gassoc_proto	2463178
gcmp	282624844
gcmpsg	762228
gcvtop	126
gen_2val	791842
gen_2valrem	4915083
gen_Z_divides	6854
gen_lval	889512
gen_lvalrem	8476078
gen_pval	133427
gen_pvalrem	8488309
gen_pvalrem_DC	11751
gen_z_divides	4935
gequal	239745369
gequal0	2690002537
gequal1	339957046
gequalX	8501217
gequal_try	5316307
gequalm1	74233555
gequalsg	43988
gexpo	843086461
gexpo_safe	843373090
gidentical	54817078
gisexactzero	47311442
glength	5149550
gmax	79310
gmaxgs	0
gmequal_try	28
gmin	12180
gmings	0
gneg	463482954
gneg_i	140191406
gpexponent	90215
gpvaluation	3934
gsigne	83606995
gtolist	5951
gtolong	77
gtranslength	3878
gvaluation	1396053
identicalrr	1547
intdvd	91
is_monomial_test	19829037
is_negative	0
isexactzero	743339040
isless_iu	15155180
isrationalzero	900640569
itop2_coprime	17613920
lexcmp	1617654
lexcmp_i	1617654
lexcmp_s_matvec	21
lexcmp_scal_matvec	357
lexcmp_scal_vecsmall	42
lexcmp_similar	372029
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	37295845
map_proto_lGL	126
mat_test	16366
matsize	1862
minval	77315
mklist	6856
mklist_typ	6912
mklistcopy	70
mkmap	49
normalizepol	99621911
normalizepol_approx	0
normalizepol_lg	960769421
normalizeser	15095790
padic_to_Fl	421707
padic_to_Fp	4550
polequal	10490866
polidentical	1528260
qtop	42
quadtofp	252
r_approx0	1809397
roughtype	3235651
serequal	420
seridentical	14
sizedigit	7
u_lval	71609491
u_lvalrem	89650611
u_lvalrem_stop	134996951
u_pval	136809
u_pvalrem	2625208
vecequal	5529385
vecidentical	5441495
vecindexmax	503304
vecindexmin	182759
vecmax	66202
vecmax0	226892
vecmin	35234
vecmin0	147402
z_lval	1836739
z_lvalrem	87342
z_pval	1318026
z_pvalrem	399
zx_lval	28931

Generated by: LCOV version 1.16