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 30480-572da319a6) Lines: 1554 1658 93.7 % Date: 2025-08-27 09:24:05 Functions: 149 156 95.5 % Legend: Lines: hit not hit

Function Name	Hit count
Q_lval	9346055
Q_lvalrem	6302726
Q_pval	9341856
Q_pvalrem	6304315
ZV_Z_dvd	1309
ZV_lval	0
ZV_lvalrem	0
ZV_pval	30905
ZV_pvalrem	4173269
ZXV_pvalrem	0
ZXX_pvalrem	1190
ZX_gen_pvalrem	1190
ZX_lval	748784
ZX_lvalrem	721
ZX_pval	101289
ZX_pvalrem	4303849
Z_lval	69005504
Z_lvalrem	64383586
Z_lvalrem_stop	116674082
Z_pval	49639325
Z_pvalrem	68793513
Z_pvalrem_DC	2185095
_Fp_div	163005
_domul	2258887
affgc	2590
chk_true_err	189
closure_identical	70
cmp_str	3681020
cmp_universal	88945297
cmp_universal_rec	39264843
cmpfrac	4589714
cmpgen	161
cmpifrac	455590
cmprfrac	81308
col_test	294560
ctop	14
cvstop2	399
cvtop	600513
cvtop2	17619538
cx_approx0	2558460
cx_approx_equal	49981
ensure_nb	810971
factorial_lval	1993478
frac_lval	381873
frac_val	292596
gabs	53899838
gassoc_proto	2463035
gcmp	299179064
gcmpsg	762242
gcvtop	126
gen_2val	773487
gen_2valrem	4911638
gen_Z_divides	6859
gen_lval	870660
gen_lvalrem	8464905
gen_pval	132194
gen_pvalrem	8477105
gen_pvalrem_DC	11756
gen_z_divides	4935
gequal	243491788
gequal0	2497915803
gequal1	341882089
gequalX	8485623
gequal_try	3192937
gequalm1	74233123
gequalsg	43988
gexpo	841697988
gexpo_safe	841991775
gidentical	54817533
gisexactzero	57213005
glength	5148693
gmax	79310
gmaxgs	0
gmequal_try	28
gmin	12306
gmings	0
gneg	465152684
gneg_i	129750318
gpexponent	90194
gpvaluation	3934
gsigne	81208839
gtolist	5930
gtolong	77
gtranslength	3878
gvaluation	1399767
identicalrr	1547
intdvd	91
is_monomial_test	22661137
is_negative	0
isexactzero	576002963
isless_iu	15008109
isrationalzero	768565878
itop2_coprime	17612021
lexcmp	1616266
lexcmp_i	1616268
lexcmp_s_matvec	21
lexcmp_scal_matvec	357
lexcmp_scal_vecsmall	42
lexcmp_similar	372034
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	37598715
map_proto_lGL	126
mat_test	16366
matsize	1862
minval	137186
mklist	6835
mklist_typ	6891
mklistcopy	63
mkmap	49
normalizepol	99431251
normalizepol_approx	0
normalizepol_lg	938075498
normalizeser	13353884
padic_to_Fl	421699
padic_to_Fp	4298
polequal	12730203
polidentical	1528749
qtop	42
quadtofp	252
r_approx0	1809582
roughtype	3232878
serequal	420
seridentical	14
sizedigit	7
u_lval	70691210
u_lvalrem	89560868
u_lvalrem_stop	135256417
u_pval	136822
u_pvalrem	2626394
vecequal	5528612
vecidentical	5438057
vecindexmax	503184
vecindexmin	181912
vecmax	66200
vecmax0	226785
vecmin	35087
vecmin0	147255
z_lval	1843987
z_lvalrem	87341
z_pval	1318006
z_pvalrem	399
zx_lval	28931

Generated by: LCOV version 1.16