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 30568-0d72d66ef5) Lines: 1554 1658 93.7 % Date: 2025-12-01 09:22:22 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	66204
gmax	79310
cmprfrac	81308
z_lvalrem	87351
gpexponent	90215
ZX_pval	101303
gen_pval	132236
u_pval	136880
minval	137186
vecmin0	147367
_Fp_div	163005
vecindexmin	182024
vecmax0	226894
frac_val	292596
col_test	294560
lexcmp_similar	372035
frac_lval	381873
padic_to_Fl	421698
cmpifrac	455590
vecindexmax	503333
cvtop	600512
listput0	724955
ZX_lval	748889
gcmpsg	762244
gen_2val	773613
listput	776125
ensure_nb	810971
gen_lval	870800
z_pval	1318006
gvaluation	1400173
polidentical	1528749
lexcmp	1616270
lexcmp_i	1616270
r_approx0	1809689
z_lval	1844021
factorial_lval	1993271
Z_pvalrem_DC	2185246
_domul	2258887
gassoc_proto	2463120
cx_approx0	2558594
u_pvalrem	2626526
gequal_try	3194295
roughtype	3232883
cmp_str	3681020
ZV_pvalrem	4181533
ZX_pvalrem	4303960
cmpfrac	4589841
gen_2valrem	4916104
glength	5148763
vecidentical	5442322
vecequal	5528750
Q_lvalrem	6302697
Q_pvalrem	6304299
gen_lvalrem	8473256
gen_pvalrem	8485479
gequalX	8485678
Q_pval	9412952
Q_lval	9417144
polequal	12730294
normalizeser	13407890
isless_iu	15092924
itop2_coprime	17611756
cvtop2	17618757
is_monomial_test	22662942
map_proto_lG	37437248
cmp_universal_rec	39285833
Z_pval	50227388
gabs	53457421
gidentical	54838751
gisexactzero	57213695
Z_lvalrem	64412847
Z_pvalrem	68957789
Z_lval	70080139
u_lval	71493191
gequalm1	74233486
gsigne	81256674
cmp_universal	89001908
u_lvalrem	89638226
normalizepol	99423332
Z_lvalrem_stop	116790735
gneg_i	129788359
u_lvalrem_stop	135637428
gequal	242439544
gcmp	298838835
gequal1	341910210
gneg	463411651
isexactzero	576085786
isrationalzero	768904489
gexpo	842226334
gexpo_safe	842510776
normalizepol_lg	938104523
gequal0	2495417900

Generated by: LCOV version 1.16