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 30735-65f72320ad) Lines: 1554 1658 93.7 % Date: 2026-03-15 09:23:45 Functions: 149 156 95.5 % Legend: Lines: hit not hit

Function Name	Hit count
Q_lval	9428805
Q_lvalrem	6302835
Q_pval	9424614
Q_pvalrem	6304430
ZV_Z_dvd	1309
ZV_lval	0
ZV_lvalrem	0
ZV_pval	30934
ZV_pvalrem	4182825
ZXV_pvalrem	0
ZXX_pvalrem	1204
ZX_gen_pvalrem	1204
ZX_lval	749610
ZX_lvalrem	721
ZX_pval	101310
ZX_pvalrem	4301770
Z_lval	70314055
Z_lvalrem	64496146
Z_lvalrem_stop	117385627
Z_pval	50377353
Z_pvalrem	69395547
Z_pvalrem_DC	2184690
_Fp_div	163004
_domul	2258886
affgc	2590
chk_true_err	189
closure_identical	70
cmp_str	3681020
cmp_universal	88998012
cmp_universal_rec	39282797
cmpfrac	4589518
cmpgen	161
cmpifrac	455583
cmprfrac	81308
col_test	294560
ctop	14
cvstop2	399
cvtop	600618
cvtop2	17620983
cx_approx0	2557938
cx_approx_equal	49981
ensure_nb	810971
factorial_lval	1993257
frac_lval	381842
frac_val	292596
gabs	53477281
gassoc_proto	2463159
gcmp	282439384
gcmpsg	762243
gcvtop	126
gen_2val	774342
gen_2valrem	4914627
gen_Z_divides	6854
gen_lval	871529
gen_lvalrem	8472372
gen_pval	132244
gen_pvalrem	8484593
gen_pvalrem_DC	11751
gen_z_divides	4935
gequal	239707691
gequal0	2671175377
gequal1	339857259
gequalX	8485716
gequal_try	5316307
gequalm1	74233556
gequalsg	43988
gexpo	841883758
gexpo_safe	842172386
gidentical	54816516
gisexactzero	47280577
glength	5148864
gmax	79310
gmaxgs	0
gmequal_try	28
gmin	12180
gmings	0
gneg	461507954
gneg_i	134270070
gpexponent	90215
gpvaluation	3934
gsigne	81200896
gtolist	5951
gtolong	77
gtranslength	3878
gvaluation	1396053
identicalrr	1547
intdvd	91
is_monomial_test	19829142
is_negative	0
isexactzero	740732566
isless_iu	15153265
isrationalzero	886259492
itop2_coprime	17614120
lexcmp	1616266
lexcmp_i	1616265
lexcmp_s_matvec	21
lexcmp_scal_matvec	357
lexcmp_scal_vecsmall	42
lexcmp_similar	372033
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	37106243
map_proto_lGL	126
mat_test	16366
matsize	1862
minval	77315
mklist	6856
mklist_typ	6912
mklistcopy	70
mkmap	49
normalizepol	99456470
normalizepol_approx	0
normalizepol_lg	957174576
normalizeser	13331097
padic_to_Fl	421694
padic_to_Fp	4550
polequal	10490863
polidentical	1528260
qtop	42
quadtofp	252
r_approx0	1809452
roughtype	3232873
serequal	420
seridentical	14
sizedigit	7
u_lval	71598225
u_lvalrem	89644405
u_lvalrem_stop	134876827
u_pval	136750
u_pvalrem	2624984
vecequal	5529382
vecidentical	5441439
vecindexmax	503302
vecindexmin	182059
vecmax	66199
vecmax0	226889
vecmin	35234
vecmin0	147402
z_lval	1836716
z_lvalrem	87346
z_pval	1318024
z_pvalrem	399
zx_lval	28931

Generated by: LCOV version 1.16