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 30483-b6b1f87815) Lines: 2080 2301 90.4 % Date: 2025-09-12 09:24:16 Functions: 218 233 93.6 % Legend: Lines: hit not hit

Function Name	Hit count
ECP_psi	837
Fl_2gener_pre	193780
Fl_2gener_pre_i	65765
Fl_2powu	4358177
Fl_2powu_pre	12934323
Fl_lgener_pre_all	148228
Fl_log	132389
Fl_log_Fp	0
Fl_log_naive	132389
Fl_log_naive_pre	29016
Fl_log_pre	29414
Fl_order	542784
Fl_powers	296057
Fl_powers_pre	13093572
Fl_powu	141677875
Fl_powu_pre	165493935
Fl_sqrt	12477823
Fl_sqrt_i	12598593
Fl_sqrt_pre	22628523
Fl_sqrt_pre_i	35295620
Fl_sqrtl	0
Fl_sqrtl_pre	233451
Fl_sqrtl_raw	236293
Fl_sqrtn	232512
Fl_sqrtn_pre	232512
FpV_prod	497
Fp_2gener	3327
Fp_2gener_all	5916
Fp_2gener_i	19392
Fp_easylog	8819112
Fp_factored_order	70
Fp_gausssum	363
Fp_invgen	6087222
Fp_invmBarrett	15402
Fp_log	4259275
Fp_log_find_ind	126
Fp_log_find_rel	126
Fp_log_halfgcd	56425
Fp_log_index	63
Fp_log_sieve	63
Fp_log_sieve_worker	30251
Fp_log_use_index	5039440
Fp_order	132357
Fp_pow	37757324
Fp_pow_init	105
Fp_pow_table	43694
Fp_powers	5931
Fp_pows	1346192
Fp_powu	1755833
Fp_rem_mBarrett	9735329
Fp_rootsof1	846
Fp_select_red	880523
Fp_sqrt	4833009
Fp_sqrt_i	4891493
Fp_sqrt_ii	80249
Fp_sqrtn	173548
Fp_sqrts	18506
Qsfcont	3137414
ZMV_producttree	0
ZM_nv_mod_tree	214991
ZM_nv_mod_tree_t	220448
ZT_sqr	13592480
ZVV_nv_mod_tree	5457
ZV_allpnqn	894831
ZV_chinese	5141
ZV_chinese_center	157261
ZV_chinese_tree	40728661
ZV_chinesetree	2627405
ZV_invdivexact	2627409
ZV_nv_mod_tree	1234349
ZV_producttree	2632074
ZV_sqr	2627408
ZXC_nv_mod_tree	5634
ZXM_nv_mod_tree	491
ZXX_nv_mod_tree	254845
ZX_nv_mod_tree	3106138
Z_ZV_mod	0
Z_ZV_mod_tree	58165876
Z_chinese	2142
Z_chinese_all	267626
Z_chinese_coprime	544293
Z_chinese_post	3069429
Z_chinese_pre	271344
Z_factor_listP	350651
Z_nv_mod	0
Zp_order	70
_Fp_add	1175431
_Fp_equal0	260698
_Fp_inv	34295
_Fp_mul	14228419
_Fp_neg	1086780
_Fp_one	47162
_Fp_pow	28602660
_Fp_rand	167
_Fp_red	889723
_Fp_rmul	575158
_Fp_s	19071
_Fp_sqr	8134253
_computeG	837
_gc_upto	112
_mul2_montred	10512288
_mul2_remii	4286788
_mul2_remiibar	2115674
_mul_montred	7092165
_mul_remii	1819893
_mul_remiibar	842605
_psi	1714
_sqr_montred	67594411
_sqr_remii	26422911
_sqr_remiibar	8892724
addifsmooth1	2163
addifsmooth2	83825
bestappr	105398
bestapprPade	119
bestapprPade0	126
bestappr_Q	2287832
bestappr_RgX	119
bestappr_frac	7
bestappr_real	1272575
bestappr_ser	98
check_kernel	63
checkp	2586330
chinese	5495
chinese1	2415
chinese1_coprime_Z	2460592
chinese1_coprime_Z_aux	2253539
compute_nbgen	63
contfrac0	49
contfracpnqn	266
err_oo	56
err_p	161
err_prec	196
factorial_Fl	56836
factorial_Fp	382
fibo	7
gboundcf	3142391
gc_chinese	980345
gc_empty	42
gcf	126
gcf2	0
gen_chinese	2463007
gener_Zp	259
get_Fp_field	6959
get_PHI	98
gome	5889079
hilbert	62314
hilbertii	140826
icopy_lg	3137064
init_montdata	667557
intmod2polmod	21
is_gener_Fl	1662638
is_gener_Fp	13963
is_gener_expo	4909
istotient	70000
istotient_i	621565
krois	40089
kroiu	27631711
kronecker	12737001
krosi	159626
kross	101947431
kroui	35325
krouodd	194951
krouu	101499240
krouu_s	235882898
lcmii	54521442
lift_intmod	420
lift_padic	210
lucas	56
mod_to_frac	42
mod_to_rfrac	112
mpfact	497221
mphilbertoo	7329
mpprimorial	105
muls_interval	623
mulu_interval	159070
mulu_interval_step	92753
ncV_chinese_center	10565
ncV_chinese_center_tree	5457
ncV_polint_center_tree	1514939
nmV_chinese_center	377917
nmV_chinese_center_tree	0
nmV_chinese_center_tree_seq	120301
nmV_polint_center_tree	377917
nmV_polint_center_tree_seq	120301
nmV_polint_center_tree_worker	974836
nonsquare1_Fl	12180356
nonsquare_Fl	7930
nonsquare_Fp	1460
nxCV_chinese_center	0
nxCV_chinese_center_tree	0
nxCV_polint_center_tree	6585
nxMV_chinese_center	104
nxMV_chinese_center_tree_seq	491
nxMV_polint_center_tree	104
nxMV_polint_center_tree_seq	491
nxMV_polint_center_tree_worker	1225
nxV_chinese_center	429357
nxV_chinese_center_tree	304206
nxV_polint_center_tree	876023
odd_prime_divisors	1812
ome	330869271
opt_param	63
padic2mod	21
pgener_Fl	575219
pgener_Fl_local	1081290
pgener_Fp	44275
pgener_Fp_local	412291
pgener_Zl	205745
pgener_Zp	170989
pnqn	0
polint_chinese	378021
remove2	1812
rootsof1_Fl	215543
rootsof1_Fp	0
rootsof1u_Fp	3033
rt	169813
serPade	49
sersfcont	0
sfcont2	14
sqrt_Cipolla	0
sqrt_Cipolla_msqr	0
sqrt_Cipolla_sqr	0
to_ZX	1893529
tr	59731
u_chinese_coprime	1636715
u_chinese_post	1636732
u_is_gener_expo	545130
u_odd_prime_divisors	464121
u_remove2	464121
znlog	238
znlog_rec	126
znorder	63
znprimroot	329

Generated by: LCOV version 1.16