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 30712-26d8f09ef9) Lines: 1554 1658 93.7 % Date: 2026-02-26 09:24:10 Functions: 149 156 95.5 % Legend: Lines: hit not hit

Function Name	Hit count
Q_lval	9427949
Q_lvalrem	6302838
Q_pval	9423753
Q_pvalrem	6304437
ZV_Z_dvd	1309
ZV_lval	0
ZV_lvalrem	0
ZV_pval	30934
ZV_pvalrem	4182873
ZXV_pvalrem	0
ZXX_pvalrem	1204
ZX_gen_pvalrem	1204
ZX_lval	749113
ZX_lvalrem	721
ZX_pval	101310
ZX_pvalrem	4301334
Z_lval	70311787
Z_lvalrem	64496245
Z_lvalrem_stop	117270443
Z_pval	50376246
Z_pvalrem	69396324
Z_pvalrem_DC	2185133
_Fp_div	163005
_domul	2258886
affgc	2590
chk_true_err	189
closure_identical	70
cmp_str	3681020
cmp_universal	88994030
cmp_universal_rec	39282596
cmpfrac	4589519
cmpgen	161
cmpifrac	455583
cmprfrac	81308
col_test	294560
ctop	14
cvstop2	399
cvtop	600620
cvtop2	17620287
cx_approx0	2558237
cx_approx_equal	49981
ensure_nb	810971
factorial_lval	1992916
frac_lval	381847
frac_val	292596
gabs	53430344
gassoc_proto	2463159
gcmp	282579354
gcmpsg	762239
gcvtop	126
gen_2val	773845
gen_2valrem	4914546
gen_Z_divides	6859
gen_lval	871032
gen_lvalrem	8471987
gen_pval	132244
gen_pvalrem	8484201
gen_pvalrem_DC	11756
gen_z_divides	4935
gequal	242201326
gequal0	2498724957
gequal1	341866692
gequalX	8485631
gequal_try	3194295
gequalm1	74233535
gequalsg	43988
gexpo	842119240
gexpo_safe	842405292
gidentical	54824558
gisexactzero	57126293
glength	5148759
gmax	79310
gmaxgs	0
gmequal_try	28
gmin	12180
gmings	0
gneg	463369961
gneg_i	129900077
gpexponent	90215
gpvaluation	3934
gsigne	81360916
gtolist	5951
gtolong	77
gtranslength	3878
gvaluation	1401464
identicalrr	1547
intdvd	91
is_monomial_test	22657810
is_negative	0
isexactzero	576171092
isless_iu	15094127
isrationalzero	768519617
itop2_coprime	17613426
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	37243958
map_proto_lGL	126
mat_test	16366
matsize	1862
minval	137186
mklist	6856
mklist_typ	6912
mklistcopy	70
mkmap	49
normalizepol	99398334
normalizepol_approx	0
normalizepol_lg	937799548
normalizeser	13331097
padic_to_Fl	421703
padic_to_Fp	4550
polequal	12730241
polidentical	1528750
qtop	42
quadtofp	252
r_approx0	1809673
roughtype	3232883
serequal	420
seridentical	14
sizedigit	7
u_lval	71597051
u_lvalrem	89638306
u_lvalrem_stop	134829056
u_pval	136868
u_pvalrem	2624901
vecequal	5528773
vecidentical	5441542
vecindexmax	503303
vecindexmin	182059
vecmax	66201
vecmax0	226891
vecmin	35234
vecmin0	147402
z_lval	1836759
z_lvalrem	87347
z_pval	1318004
z_pvalrem	399
zx_lval	28931

Generated by: LCOV version 1.16