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 30744-52374ab6cf) Lines: 1554 1658 93.7 % Date: 2026-03-17 09:26:37 Functions: 149 156 95.5 % Legend: Lines: hit not hit

Function Name	Hit count
Q_lval	9430119
Q_lvalrem	6302833
Q_pval	9425929
Q_pvalrem	6304430
ZV_Z_dvd	1309
ZV_lval	0
ZV_lvalrem	0
ZV_pval	30934
ZV_pvalrem	4182935
ZXV_pvalrem	0
ZXX_pvalrem	1400
ZX_gen_pvalrem	1400
ZX_lval	766410
ZX_lvalrem	721
ZX_pval	102493
ZX_pvalrem	4305230
Z_lval	70328266
Z_lvalrem	64496230
Z_lvalrem_stop	117400746
Z_pval	50390486
Z_pvalrem	69395859
Z_pvalrem_DC	2185004
_Fp_div	163005
_domul	2258886
affgc	2590
chk_true_err	189
closure_identical	70
cmp_str	3681020
cmp_universal	89002730
cmp_universal_rec	39283570
cmpfrac	4590919
cmpgen	161
cmpifrac	455583
cmprfrac	81308
col_test	294560
ctop	14
cvstop2	399
cvtop	600623
cvtop2	17621299
cx_approx0	2557869
cx_approx_equal	49981
ensure_nb	810971
factorial_lval	1993332
frac_lval	381830
frac_val	292596
gabs	53603887
gassoc_proto	2463189
gcmp	282539878
gcmpsg	763449
gcvtop	126
gen_2val	791842
gen_2valrem	4914853
gen_Z_divides	6854
gen_lval	889512
gen_lvalrem	8475920
gen_pval	133427
gen_pvalrem	8488151
gen_pvalrem_DC	11751
gen_z_divides	4935
gequal	239745231
gequal0	2690204875
gequal1	339959487
gequalX	8501209
gequal_try	5316307
gequalm1	74233555
gequalsg	43988
gexpo	843087549
gexpo_safe	843379616
gidentical	54817108
gisexactzero	47311369
glength	5149550
gmax	79310
gmaxgs	0
gmequal_try	28
gmin	31080
gmings	0
gneg	463474805
gneg_i	140128489
gpexponent	90215
gpvaluation	3934
gsigne	83576388
gtolist	5951
gtolong	77
gtranslength	3878
gvaluation	1396053
identicalrr	1547
intdvd	91
is_monomial_test	19829122
is_negative	0
isexactzero	743349207
isless_iu	15159641
isrationalzero	900607149
itop2_coprime	17613834
lexcmp	1617651
lexcmp_i	1617651
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	37223172
map_proto_lGL	126
mat_test	16366
matsize	1862
minval	77315
mklist	6856
mklist_typ	6912
mklistcopy	70
mkmap	49
normalizepol	99620684
normalizepol_approx	0
normalizepol_lg	960756406
normalizeser	15095790
padic_to_Fl	421692
padic_to_Fp	4550
polequal	10490846
polidentical	1528260
qtop	42
quadtofp	252
r_approx0	1809404
roughtype	3235645
serequal	420
seridentical	14
sizedigit	7
u_lval	71609736
u_lvalrem	89650367
u_lvalrem_stop	134890799
u_pval	136923
u_pvalrem	2625081
vecequal	5529387
vecidentical	5441465
vecindexmax	503300
vecindexmin	182759
vecmax	66199
vecmax0	226889
vecmin	35234
vecmin0	147402
z_lval	1836761
z_lvalrem	87346
z_pval	1318026
z_pvalrem	399
zx_lval	28931

Generated by: LCOV version 1.16