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 v2.18.1 lcov report (development 31041-bd73e9fcdd) Lines: 93.6 % 1667 1561 Test Date: 2026-07-22 22:45:42 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	1862
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	66202
gmax	79310
cmprfrac	81756
z_lvalrem	87348
gpexponent	90285
ZX_pval	104292
gen_pval	135226
u_pval	136846
minval	137186
vecmin0	147521
_Fp_div	163005
vecindexmin	183130
vecmax0	227032
frac_val	292596
col_test	294560
lexcmp_similar	372163
frac_lval	381836
padic_to_Fl	421699
cmpifrac	455849
vecindexmax	503443
cvtop	600656
listput0	724955
gcmpsg	762253
listput	776125
ZX_lval	788796
ensure_nb	810971
gen_2val	816027
gen_lval	913697
z_pval	1318030
gvaluation	1401625
lexcmp	1628659
lexcmp_i	1628659
r_approx0	1808928
z_lval	1839847
factorial_lval	1995436
Z_pvalrem_DC	2159114
_domul	2258886
gassoc_proto	2462783
cx_approx_equal	2499437
cx_approx0	2507016
u_pvalrem	2634533
gequal_try	3195604
roughtype	3257661
cmp_str	3681020
ZV_pvalrem	4183523
ZX_pvalrem	4317914
cmpfrac	4595760
gen_2valrem	4923700
glength	5150313
vecidentical	5440823
vecequal	5577413
polidentical	5634065
Q_lvalrem	6302861
Q_pvalrem	6304453
gen_lvalrem	8489331
gen_pvalrem	8501435
gequalX	8509513
Q_pval	9427422
Q_lval	9431647
polequal	12918175
isless_iu	15102537
normalizeser	15686279
itop2_coprime	17612726
cvtop2	17619972
is_monomial_test	22631172
map_proto_lG	37435554
cmp_universal_rec	39285081
Z_pval	50412322
gabs	53725196
gisexactzero	57171801
Z_lvalrem	65060097
Z_lval	68995577
Z_pvalrem	69960562
u_lval	71116789
gequalm1	74234551
gsigne	84281262
cmp_universal	89010505
u_lvalrem	90399014
normalizepol	99685779
Z_lvalrem_stop	117185973
gidentical	123902947
u_lvalrem_stop	135102996
gneg_i	138729072
gequal	244359624
gcmp	255146150
gequal1	342203250
gneg	472757998
isexactzero	582549487
isrationalzero	792601127
gexpo	889394892
gexpo_safe	889687081
normalizepol_lg	945334068
gequal0	2539162329

Generated by: LCOV version 2.0-1