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) Coverage Total Hit Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 93.6 % 1668 1562 Test Date: 2026-09-06 17:02:10 Functions: 94.9 % 158 150 Legend: Lines:     hit not hit

Function Name	Hit count
ZV_lval	0
ZV_lvalrem	0
ZXV_pval	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
chk_true_err	189
lexcmp_vecsmall_other	196
cmpgen	224
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_pval	952
ZV_Z_dvd	1414
identicalrr	1547
matsize	1869
affgc	2590
ZXX_pvalrem	2849
ZX_gen_pvalrem	3801
gtranslength	3878
gpvaluation	3934
padic_to_Fp	4550
gen_z_divides	4935
gtolist	5972
gen_Z_divides	6855
mklist	6870
mklist_typ	6926
gen_pvalrem_DC	11752
gmin	12180
mat_test	16366
listpop	21917
zx_lval	28931
ZV_pval	30934
listinsert	35014
listinsert0	35028
vecmin	35353
gequalsg	44058
vecmax	66207
gmax	79310
cmprfrac	81759
z_lvalrem	87353
gpexponent	90285
ZX_pval	104293
gen_pval	135227
u_pval	137019
minval	137186
vecmin0	147521
_Fp_div	163005
vecindexmin	183130
vecmax0	227037
frac_val	292596
col_test	294560
lexcmp_similar	372161
frac_lval	381837
padic_to_Fl	421719
cmpifrac	456500
vecindexmax	503449
cvtop	600631
listput0	724955
gcmpsg	762273
listput	776125
ZX_lval	788825
ensure_nb	810971
gen_2val	816056
gen_lval	913727
z_pval	1318037
gvaluation	1401625
lexcmp	1628653
lexcmp_i	1628653
r_approx0	1809019
z_lval	1839872
factorial_lval	1995391
Z_pvalrem_DC	2159098
_domul	2258886
gassoc_proto	2462808
cx_approx_equal	2499436
cx_approx0	2507125
u_pvalrem	2634795
gequal_try	3195602
roughtype	3257649
cmp_str	3681020
ZV_pvalrem	4183556
ZX_pvalrem	4318730
cmpfrac	4595760
gen_2valrem	4924052
glength	5150313
vecidentical	5440883
vecequal	5577412
polidentical	5634065
Q_lvalrem	6303023
Q_pvalrem	6304619
gen_lvalrem	8490041
gen_pvalrem	8502286
gequalX	8509503
Q_pval	9427849
Q_lval	9432040
polequal	12918186
map_proto_lG	13899380
isless_iu	15103276
normalizeser	15686279
itop2_coprime	17618519
cvtop2	17625449
is_monomial_test	22631578
cmp_universal_rec	39285431
Z_pval	50415264
gabs	53745167
gisexactzero	57171721
Z_lvalrem	65076570
Z_lval	68999635
Z_pvalrem	69976171
u_lval	71120116
gequalm1	74234552
gsigne	84461531
cmp_universal	89011797
u_lvalrem	90419965
normalizepol	99746266
Z_lvalrem_stop	118027913
gidentical	123903166
u_lvalrem_stop	136206563
gneg_i	138756131
gcmp	231805026
gequal	244377604
gequal1	342290655
gneg	473029019
isexactzero	582934707
isrationalzero	792814419
gexpo	889807121
gexpo_safe	890094155
normalizepol_lg	946193807
gequal0	2541600817

Generated by: LCOV version 2.0-1