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 30569-8181146aa1) Lines: 1554 1658 93.7 % Date: 2025-12-02 09:22:09 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
mklistcopy	63
closure_identical	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
ZXX_pvalrem	1197
ZX_gen_pvalrem	1197
ZV_Z_dvd	1309
identicalrr	1547
matsize	1862
affgc	2590
gtranslength	3878
gpvaluation	3934
padic_to_Fp	4298
gen_z_divides	4935
gtolist	5930
mklist	6835
gen_Z_divides	6859
mklist_typ	6891
gen_pvalrem_DC	11756
gmin	12313
mat_test	16366
listpop	21917
zx_lval	28931
ZV_pval	30933
listinsert	35014
listinsert0	35028
vecmin	35199
gequalsg	43988
cx_approx_equal	49981
vecmax	66203
gmax	79310
cmprfrac	81308
z_lvalrem	87339
gpexponent	90215
ZX_pval	101303
gen_pval	132236
u_pval	136847
minval	137186
vecmin0	147367
_Fp_div	163005
vecindexmin	182024
vecmax0	226893
frac_val	292596
col_test	294560
lexcmp_similar	372030
frac_lval	381874
padic_to_Fl	421690
cmpifrac	455590
vecindexmax	503333
cvtop	600501
listput0	724955
ZX_lval	748889
gcmpsg	762245
gen_2val	773613
listput	776125
ensure_nb	810971
gen_lval	870800
z_pval	1317994
gvaluation	1400173
polidentical	1528749
lexcmp	1616256
lexcmp_i	1616256
r_approx0	1809914
z_lval	1843990
factorial_lval	1993145
Z_pvalrem_DC	2185102
_domul	2258887
gassoc_proto	2463109
cx_approx0	2558858
u_pvalrem	2626347
gequal_try	3194295
roughtype	3232856
cmp_str	3681020
ZV_pvalrem	4181606
ZX_pvalrem	4303764
cmpfrac	4589841
gen_2valrem	4916111
glength	5148763
vecidentical	5442326
vecequal	5528745
Q_lvalrem	6302653
Q_pvalrem	6304261
gen_lvalrem	8473168
gen_pvalrem	8485353
gequalX	8485677
Q_pval	9413054
Q_lval	9417245
polequal	12730273
normalizeser	13407890
isless_iu	15092891
itop2_coprime	17611454
cvtop2	17618738
is_monomial_test	22663004
map_proto_lG	37216069
cmp_universal_rec	39285997
Z_pval	50227721
gabs	53457058
gidentical	54838724
gisexactzero	57213563
Z_lvalrem	64412181
Z_pvalrem	68957287
Z_lval	70080723
u_lval	71493487
gequalm1	74233485
gsigne	81257043
cmp_universal	89002712
u_lvalrem	89637054
normalizepol	99422070
Z_lvalrem_stop	116877674
gneg_i	129800186
u_lvalrem_stop	135679245
gequal	242439265
gcmp	298530090
gequal1	341911346
gneg	463407299
isexactzero	576093961
isrationalzero	768902175
gexpo	842307332
gexpo_safe	842595010
normalizepol_lg	938089372
gequal0	2495532072

Generated by: LCOV version 1.16