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 30465-b757eeabfc) Lines: 1554 1658 93.7 % Date: 2025-08-12 09:23:53 Functions: 149 156 95.5 % Legend: Lines: hit not hit

Function Name	Hit count
Q_lval	9345996
Q_lvalrem	6302700
Q_pval	9341792
Q_pvalrem	6304289
ZV_Z_dvd	1309
ZV_lval	0
ZV_lvalrem	0
ZV_pval	30905
ZV_pvalrem	4173235
ZXV_pvalrem	0
ZXX_pvalrem	1190
ZX_gen_pvalrem	1190
ZX_lval	748784
ZX_lvalrem	721
ZX_pval	101289
ZX_pvalrem	4303784
Z_lval	69004816
Z_lvalrem	64385307
Z_lvalrem_stop	116949008
Z_pval	49638757
Z_pvalrem	68795023
Z_pvalrem_DC	2184642
_Fp_div	163005
_domul	2258887
affgc	2590
chk_true_err	189
closure_identical	70
cmp_str	3681020
cmp_universal	88944896
cmp_universal_rec	39264631
cmpfrac	4589722
cmpgen	161
cmpifrac	455590
cmprfrac	81350
col_test	294560
ctop	14
cvstop2	399
cvtop	600517
cvtop2	17620487
cx_approx0	2558478
cx_approx_equal	49981
ensure_nb	810971
factorial_lval	1993499
frac_lval	381874
frac_val	292596
gabs	53903363
gassoc_proto	2463054
gcmp	298821803
gcmpsg	762291
gcvtop	126
gen_2val	773487
gen_2valrem	4911636
gen_Z_divides	6859
gen_lval	870660
gen_lvalrem	8464832
gen_pval	132194
gen_pvalrem	8477007
gen_pvalrem_DC	11756
gen_z_divides	4935
gequal	243491576
gequal0	2497680672
gequal1	341872481
gequalX	8485622
gequal_try	3192937
gequalm1	74233122
gequalsg	43988
gexpo	841742531
gexpo_safe	842029197
gidentical	54817489
gisexactzero	57212816
glength	5148693
gmax	79310
gmaxgs	0
gmequal_try	28
gmin	12306
gmings	0
gneg	465158229
gneg_i	129757267
gpexponent	90208
gpvaluation	3934
gsigne	81208997
gtolist	5930
gtolong	77
gtranslength	3878
gvaluation	1399767
identicalrr	1547
intdvd	91
is_monomial_test	22661139
is_negative	0
isexactzero	575961342
isless_iu	15006067
isrationalzero	768549932
itop2_coprime	17613381
lexcmp	1616270
lexcmp_i	1616270
lexcmp_s_matvec	21
lexcmp_scal_matvec	357
lexcmp_scal_vecsmall	42
lexcmp_similar	372035
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	37371733
map_proto_lGL	126
mat_test	16366
matsize	1862
minval	137186
mklist	6835
mklist_typ	6891
mklistcopy	63
mkmap	49
normalizepol	99424166
normalizepol_approx	0
normalizepol_lg	938015975
normalizeser	13353884
padic_to_Fl	421688
padic_to_Fp	4298
polequal	12730207
polidentical	1528749
qtop	42
quadtofp	252
r_approx0	1809612
roughtype	3232883
serequal	420
seridentical	14
sizedigit	7
u_lval	70690539
u_lvalrem	89562984
u_lvalrem_stop	135526976
u_pval	136433
u_pvalrem	2626409
vecequal	5528589
vecidentical	5438023
vecindexmax	503186
vecindexmin	181912
vecmax	66201
vecmax0	226786
vecmin	35087
vecmin0	147255
z_lval	1844038
z_lvalrem	87349
z_pval	1318008
z_pvalrem	399
zx_lval	28931

Generated by: LCOV version 1.16