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 - arith1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30584-b9873745ba) Lines: 2080 2301 90.4 % Date: 2025-12-21 09:21:02 Functions: 218 233 93.6 % Legend: Lines: hit not hit

Function Name	Hit count
Fl_log_Fp	0
Fl_sqrtl	0
ZMV_producttree	0
Z_ZV_mod	0
Z_nv_mod	0
gcf2	0
nmV_chinese_center_tree	0
nxCV_chinese_center	0
nxCV_chinese_center_tree	0
pnqn	0
rootsof1_Fp	0
sersfcont	0
sqrt_Cipolla	0
sqrt_Cipolla_msqr	0
sqrt_Cipolla_sqr	0
bestappr_frac	7
fibo	7
sfcont2	14
intmod2polmod	21
padic2mod	21
gc_empty	42
mod_to_frac	42
contfrac0	49
serPade	49
err_oo	56
lucas	56
Fp_log_index	63
Fp_log_sieve	63
check_kernel	63
compute_nbgen	63
opt_param	63
znorder	63
Fp_factored_order	70
Zp_order	70
bestappr_ser	98
get_PHI	98
nxMV_chinese_center	104
nxMV_polint_center_tree	104
Fp_pow_init	105
mpprimorial	105
_gc_upto	112
mod_to_rfrac	112
bestapprPade	119
bestappr_RgX	119
Fp_log_find_ind	126
Fp_log_find_rel	126
bestapprPade0	126
gcf	126
znlog_rec	126
_Fp_rand	160
err_p	161
factorial_Fp	186
err_prec	196
lift_padic	210
znlog	238
gener_Zp	259
contfracpnqn	266
znprimroot	329
Fp_gausssum	351
lift_intmod	420
ZXM_nv_mod_tree	491
nxMV_chinese_center_tree_seq	491
nxMV_polint_center_tree_seq	491
FpV_prod	497
muls_interval	595
Fp_rootsof1	820
ECP_psi	837
_computeG	837
nxMV_polint_center_tree_worker	1225
nonsquare_Fp	1458
_psi	1714
odd_prime_divisors	1812
remove2	1812
Z_chinese	2142
addifsmooth1	2163
chinese1	2415
rootsof1u_Fp	3033
Fp_2gener	3201
is_gener_expo	4909
ZV_chinese	5141
ZVV_nv_mod_tree	5457
ncV_chinese_center_tree	5457
chinese	5495
ZXC_nv_mod_tree	5634
Fp_2gener_all	5888
Fp_powers	5931
nxCV_polint_center_tree	6585
get_Fp_field	6963
mphilbertoo	7329
nonsquare_Fl	7930
ncV_chinese_center	10320
is_gener_Fp	13959
Fp_invmBarrett	14036
Fp_sqrts	18949
_Fp_s	19075
Fp_2gener_i	19392
Fl_log_naive_pre	29059
Fl_log_pre	29457
Fp_log_sieve_worker	30254
_Fp_inv	34307
kroui	35644
krois	40089
Fp_pow_table	43694
pgener_Fp	44282
_Fp_one	47162
Fp_log_halfgcd	55922
factorial_Fl	56778
tr	59731
hilbert	62314
Fl_2gener_pre_i	65765
istotient	70000
Fp_sqrt_ii	75170
addifsmooth2	83825
mulu_interval_step	92800
bestappr	105496
nmV_polint_center_tree_seq	120430
nmV_chinese_center_tree_seq	120432
Fl_log	132361
Fl_log_naive	132361
Fp_order	136410
hilbertii	140826
Fl_lgener_pre_all	147079
ZV_chinese_center	157320
mulu_interval	159077
krosi	159682
rt	169813
pgener_Zp	170793
Fp_sqrtn	173541
Fl_2gener_pre	188510
krouodd	195326
pgener_Zl	205549
ZM_nv_mod_tree	215410
rootsof1_Fl	215522
ZM_nv_mod_tree_t	220867
Fl_sqrtl_pre	229829
Fl_sqrtl_raw	232792
Fl_sqrtn	233410
Fl_sqrtn_pre	233411
ZXX_nv_mod_tree	254805
_Fp_equal0	260724
Z_chinese_all	268096
Z_chinese_pre	271816
Fl_powers	296050
nxV_chinese_center_tree	304191
Z_factor_listP	350651
nmV_polint_center_tree	378320
nmV_chinese_center	378321
polint_chinese	378425
pgener_Fp_local	412317
nxV_chinese_center	429272
u_odd_prime_divisors	463928
u_remove2	463928
mpfact	498570
u_is_gener_expo	544966
Z_chinese_coprime	545318
Fl_order	546543
pgener_Fl	574906
_Fp_rmul	575346
istotient_i	621565
init_montdata	661642
_mul_remiibar	717268
Fp_select_red	869565
nxV_polint_center_tree	875806
_Fp_red	889913
ZV_allpnqn	894831
nmV_polint_center_tree_worker	973078
gc_chinese	980478
pgener_Fl_local	1080966
_Fp_neg	1086846
_Fp_add	1175565
ZV_nv_mod_tree	1234809
bestappr_real	1271173
Fp_pows	1346187
_mul_remii	1474416
ncV_polint_center_tree	1512308
u_chinese_coprime	1636599
u_chinese_post	1636612
is_gener_Fl	1662285
Fp_powu	1754392
_mul2_remiibar	1797854
to_ZX	1888221
chinese1_coprime_Z_aux	2253539
bestappr_Q	2288171
chinese1_coprime_Z	2460663
gen_chinese	2463078
checkp	2568957
ZV_chinesetree	2631762
ZV_invdivexact	2631798
ZV_sqr	2631801
ZV_producttree	2635704
Z_chinese_post	3070965
ZX_nv_mod_tree	3100733
icopy_lg	3137064
Qsfcont	3137414
gboundcf	3142391
_mul2_remii	3544705
Fp_log	4259588
Fl_2powu	4358982
Fp_sqrt	4844555
Fp_sqrt_i	4898211
Fp_log_use_index	5039789
gome	5846323
Fp_invgen	6090809
_mul_montred	6662966
_sqr_remiibar	7579293
_Fp_sqr	8134253
Fp_rem_mBarrett	8296561
Fp_easylog	8819446
_mul2_montred	9363153
nonsquare1_Fl	12023218
Fl_sqrt	12403046
Fl_sqrt_i	12524454
kronecker	12750862
Fl_2powu_pre	12893922
Fl_powers_pre	13045278
ZT_sqr	13615238
_Fp_mul	14228632
Fl_sqrt_pre	23343493
_sqr_remii	23514200
kroiu	27620785
_Fp_pow	28603159
Fl_sqrt_pre_i	35940104
Fp_pow	37752898
ZV_chinese_tree	40734469
lcmii	54527089
Z_ZV_mod_tree	58112632
_sqr_montred	63028788
kross	100205280
krouu	102536477
Fl_powu	141392650
Fl_powu_pre	166096127
krouu_s	235182338
ome	334236922

Generated by: LCOV version 1.16