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 30734-f1f26dedcb) Lines: 1554 1658 93.7 % Date: 2026-03-04 09:24:31 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
closure_identical	70
mklistcopy	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	1204
ZX_gen_pvalrem	1204
ZV_Z_dvd	1309
identicalrr	1547
matsize	1862
affgc	2590
gtranslength	3878
gpvaluation	3934
padic_to_Fp	4550
gen_z_divides	4935
gtolist	5951
gen_Z_divides	6854
mklist	6856
mklist_typ	6912
gen_pvalrem_DC	11751
gmin	12180
mat_test	16366
listpop	21917
zx_lval	28931
ZV_pval	30934
listinsert	35014
listinsert0	35028
vecmin	35234
gequalsg	43988
cx_approx_equal	49981
vecmax	66203
minval	77315
gmax	79310
cmprfrac	81308
z_lvalrem	87347
gpexponent	90215
ZX_pval	101310
gen_pval	132244
u_pval	136668
vecmin0	147402
_Fp_div	163005
vecindexmin	182059
vecmax0	226893
frac_val	292596
col_test	294560
lexcmp_similar	372035
frac_lval	381843
padic_to_Fl	421697
cmpifrac	455583
vecindexmax	503305
cvtop	600551
listput0	724955
ZX_lval	749610
gcmpsg	762243
gen_2val	774342
listput	776125
ensure_nb	810971
gen_lval	871529
z_pval	1318027
gvaluation	1396053
polidentical	1528260
lexcmp	1616270
lexcmp_i	1616270
r_approx0	1809397
z_lval	1836790
factorial_lval	1993178
Z_pvalrem_DC	2184764
_domul	2258886
gassoc_proto	2463164
cx_approx0	2557866
u_pvalrem	2625032
roughtype	3232883
cmp_str	3681020
ZV_pvalrem	4182885
ZX_pvalrem	4301954
cmpfrac	4589519
gen_2valrem	4914709
glength	5148864
gequal_try	5316307
vecidentical	5441441
vecequal	5529387
Q_lvalrem	6301712
Q_pvalrem	6303322
gen_lvalrem	8472590
gen_pvalrem	8484818
gequalX	8485708
Q_pval	9424577
Q_lval	9428770
polequal	10490854
normalizeser	13331097
isless_iu	15160162
itop2_coprime	17612498
cvtop2	17619994
is_monomial_test	19828507
map_proto_lG	37317335
cmp_universal_rec	39282813
gisexactzero	47279771
Z_pval	50376840
gabs	53481745
gidentical	54808252
Z_lvalrem	64493783
Z_pvalrem	69394398
Z_lval	70313470
u_lval	71598377
gequalm1	74233558
gsigne	81200601
cmp_universal	88998252
u_lvalrem	89638332
normalizepol	99462102
Z_lvalrem_stop	117256644
gneg_i	134262621
u_lvalrem_stop	134729614
gequal	239705599
gcmp	282561369
gequal1	339806671
gneg	461491792
isexactzero	740718749
gexpo	841898649
gexpo_safe	842190484
isrationalzero	886233694
normalizepol_lg	957211348
gequal0	2671456979

Generated by: LCOV version 1.16