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 30556-bb9f5f8fc8) Lines: 1554 1658 93.7 % Date: 2025-11-25 09:20:50 Functions: 149 156 95.5 % Legend: Lines: hit not hit

Function Name	Hit count
Q_lval	9339324
Q_lvalrem	6302710
Q_pval	9335127
Q_pvalrem	6304309
ZV_Z_dvd	1162
ZV_lval	0
ZV_lvalrem	0
ZV_pval	30261
ZV_pvalrem	4169154
ZXV_pvalrem	0
ZXX_pvalrem	1197
ZX_gen_pvalrem	1197
ZX_lval	748889
ZX_lvalrem	721
ZX_pval	101303
ZX_pvalrem	4296753
Z_lval	69269924
Z_lvalrem	64330768
Z_lvalrem_stop	116507066
Z_pval	49573876
Z_pvalrem	68740124
Z_pvalrem_DC	2178336
_Fp_div	163004
_domul	2258845
affgc	2590
chk_true_err	189
closure_identical	70
cmp_str	3681020
cmp_universal	88325611
cmp_universal_rec	39224601
cmpfrac	4588632
cmpgen	161
cmpifrac	455590
cmprfrac	81308
col_test	294798
ctop	14
cvstop2	399
cvtop	600507
cvtop2	17619273
cx_approx0	2551417
cx_approx_equal	49981
ensure_nb	813113
factorial_lval	1991989
frac_lval	378211
frac_val	292592
gabs	52946210
gassoc_proto	2462181
gcmp	297099978
gcmpsg	762239
gcvtop	126
gen_2val	773151
gen_2valrem	4908367
gen_Z_divides	6855
gen_lval	870128
gen_lvalrem	8453669
gen_pval	131564
gen_pvalrem	8465887
gen_pvalrem_DC	11752
gen_z_divides	4935
gequal	239133078
gequal0	2484739140
gequal1	341755272
gequalX	8483149
gequal_try	3189632
gequalm1	74233424
gequalsg	43988
gexpo	836860199
gexpo_safe	837149340
gidentical	54623840
gisexactzero	57208268
glength	5148805
gmax	79310
gmaxgs	0
gmequal_try	28
gmin	12250
gmings	0
gneg	461612799
gneg_i	129080618
gpexponent	90215
gpvaluation	3934
gsigne	81225290
gtolist	5930
gtolong	77
gtranslength	4354
gvaluation	1400173
identicalrr	1547
intdvd	91
is_monomial_test	22646178
is_negative	0
isexactzero	573562603
isless_iu	14946829
isrationalzero	766274789
itop2_coprime	17611764
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	778267
listput0	727097
listsort	21
map_proto_G	462
map_proto_lG	37130871
map_proto_lGL	126
mat_test	16366
matsize	2100
minval	137186
mklist	6835
mklist_typ	6891
mklistcopy	63
mkmap	49
normalizepol	98929462
normalizepol_approx	0
normalizepol_lg	934597467
normalizeser	13407890
padic_to_Fl	421700
padic_to_Fp	4298
polequal	12552485
polidentical	1528749
qtop	42
quadtofp	252
r_approx0	1803779
roughtype	3232883
serequal	420
seridentical	14
sizedigit	7
u_lval	70634959
u_lvalrem	89402319
u_lvalrem_stop	135130538
u_pval	136723
u_pvalrem	2621105
vecequal	5439240
vecidentical	5434302
vecindexmax	501582
vecindexmin	182024
vecmax	66202
vecmax0	226864
vecmin	35199
vecmin0	147367
z_lval	1844038
z_lvalrem	87338
z_pval	1318005
z_pvalrem	399
zx_lval	28931

Generated by: LCOV version 1.16