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 30622-caa25a75db) Lines: 1554 1658 93.7 % Date: 2026-01-22 09:18:00 Functions: 149 156 95.5 % Legend: Lines: hit not hit

Function Name	Hit count
Q_lval	9364007
Q_lvalrem	6302872
Q_pval	9359817
Q_pvalrem	6304470
ZV_Z_dvd	1308
ZV_lval	0
ZV_lvalrem	0
ZV_pval	30891
ZV_pvalrem	4131772
ZXV_pvalrem	0
ZXX_pvalrem	1197
ZX_gen_pvalrem	1197
ZX_lval	748889
ZX_lvalrem	721
ZX_pval	101303
ZX_pvalrem	3942969
Z_lval	68535696
Z_lvalrem	63750935
Z_lvalrem_stop	117061029
Z_pval	48709319
Z_pvalrem	68559522
Z_pvalrem_DC	2127993
_Fp_div	163047
_domul	2258882
affgc	2590
chk_true_err	189
closure_identical	70
cmp_str	3681020
cmp_universal	87877949
cmp_universal_rec	38944916
cmpfrac	4586086
cmpgen	161
cmpifrac	455516
cmprfrac	81308
col_test	294560
ctop	14
cvstop2	399
cvtop	600730
cvtop2	17617980
cx_approx0	2495821
cx_approx_equal	49981
ensure_nb	810971
factorial_lval	1910286
frac_lval	375222
frac_val	292596
gabs	50313361
gassoc_proto	2459335
gcmp	296834288
gcmpsg	740523
gcvtop	126
gen_2val	773571
gen_2valrem	4598685
gen_Z_divides	6847
gen_lval	870758
gen_lvalrem	8062495
gen_pval	132194
gen_pvalrem	8074736
gen_pvalrem_DC	11735
gen_z_divides	4926
gequal	242159142
gequal0	2449475995
gequal1	339029685
gequalX	8451790
gequal_try	3194276
gequalm1	74233286
gequalsg	43988
gexpo	812415997
gexpo_safe	812701214
gidentical	54540133
gisexactzero	57193393
glength	5148483
gmax	79310
gmaxgs	0
gmequal_try	28
gmin	10955
gmings	0
gneg	453135750
gneg_i	125624906
gpexponent	90213
gpvaluation	3934
gsigne	80898072
gtolist	5930
gtolong	77
gtranslength	3878
gvaluation	1400108
identicalrr	1547
intdvd	91
is_monomial_test	22523833
is_negative	0
isexactzero	563802709
isless_iu	14848336
isrationalzero	756608051
itop2_coprime	17610682
lexcmp	1616267
lexcmp_i	1616266
lexcmp_s_matvec	21
lexcmp_scal_matvec	357
lexcmp_scal_vecsmall	42
lexcmp_similar	372034
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	37118117
map_proto_lGL	126
mat_test	16366
matsize	1862
minval	137186
mklist	6835
mklist_typ	6891
mklistcopy	63
mkmap	49
normalizepol	95121111
normalizepol_approx	0
normalizepol_lg	916007502
normalizeser	13407890
padic_to_Fl	421700
padic_to_Fp	4282
polequal	12729250
polidentical	1528750
qtop	42
quadtofp	252
r_approx0	1764745
roughtype	3232875
serequal	420
seridentical	14
sizedigit	7
u_lval	69879534
u_lvalrem	87295424
u_lvalrem_stop	133491896
u_pval	136872
u_pvalrem	2416162
vecequal	5497380
vecidentical	5397482
vecindexmax	492655
vecindexmin	182024
vecmax	57371
vecmax0	217958
vecmin	35199
vecmin0	147367
z_lval	1836720
z_lvalrem	87326
z_pval	1318000
z_pvalrem	399
zx_lval	28931

Generated by: LCOV version 1.16