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 30552-d1d0643eee) Lines: 2080 2301 90.4 % Date: 2025-11-24 09:22:36 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
err_p	161
_Fp_rand	167
factorial_Fp	186
err_prec	196
lift_padic	210
znlog	238
gener_Zp	259
contfracpnqn	266
znprimroot	329
Fp_gausssum	363
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
ECP_psi	837
_computeG	837
Fp_rootsof1	846
nxMV_polint_center_tree_worker	1225
nonsquare_Fp	1460
_psi	1714
odd_prime_divisors	1812
remove2	1812
Z_chinese	2142
addifsmooth1	2163
chinese1	2415
rootsof1u_Fp	3033
Fp_2gener	3327
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	5916
Fp_powers	5931
nxCV_polint_center_tree	6585
get_Fp_field	6963
mphilbertoo	7329
nonsquare_Fl	7930
ncV_chinese_center	10565
is_gener_Fp	13954
Fp_invmBarrett	15404
Fp_sqrts	18504
_Fp_s	19075
Fp_2gener_i	19392
Fl_log_naive_pre	29098
Fl_log_pre	29496
Fp_log_sieve_worker	30258
_Fp_inv	34307
kroui	35316
krois	40089
Fp_pow_table	43694
pgener_Fp	44282
_Fp_one	47162
Fp_log_halfgcd	55922
factorial_Fl	56794
tr	59731
hilbert	62314
Fl_2gener_pre_i	65765
istotient	70000
Fp_sqrt_ii	80244
addifsmooth2	83825
mulu_interval_step	92766
bestappr	105385
nmV_chinese_center_tree_seq	120341
nmV_polint_center_tree_seq	120341
Fl_log	132389
Fl_log_naive	132389
Fp_order	136616
hilbertii	140826
Fl_lgener_pre_all	148477
ZV_chinese_center	157287
mulu_interval	159073
krosi	159682
rt	169813
pgener_Zp	170786
Fp_sqrtn	173548
Fl_2gener_pre	193764
krouodd	194998
pgener_Zl	205542
ZM_nv_mod_tree	215070
rootsof1_Fl	215545
ZM_nv_mod_tree_t	220527
Fl_sqrtn	233412
Fl_sqrtn_pre	233412
Fl_sqrtl_pre	233566
Fl_sqrtl_raw	236526
ZXX_nv_mod_tree	254871
_Fp_equal0	260724
Z_chinese_all	268111
Z_chinese_pre	271829
Fl_powers	296057
nxV_chinese_center_tree	304252
Z_factor_listP	350651
nmV_chinese_center	378045
nmV_polint_center_tree	378045
polint_chinese	378149
pgener_Fp_local	412300
nxV_chinese_center	429408
u_odd_prime_divisors	463954
u_remove2	463954
mpfact	498596
Z_chinese_coprime	544113
u_is_gener_expo	544960
Fl_order	546581
pgener_Fl	574913
_Fp_rmul	575346
istotient_i	621565
init_montdata	667302
_mul_remiibar	842605
nxV_polint_center_tree	876101
Fp_select_red	880210
_Fp_red	889913
ZV_allpnqn	894831
nmV_polint_center_tree_worker	974904
gc_chinese	980551
pgener_Fl_local	1081002
_Fp_neg	1086846
_Fp_add	1175565
ZV_nv_mod_tree	1234612
bestappr_real	1262870
Fp_pows	1346200
ncV_polint_center_tree	1515046
u_chinese_coprime	1636601
u_chinese_post	1636612
is_gener_Fl	1662245
Fp_powu	1755448
_mul_remii	1825099
to_ZX	1893677
_mul2_remiibar	2115908
chinese1_coprime_Z_aux	2253539
bestappr_Q	2274669
chinese1_coprime_Z	2460568
gen_chinese	2462983
checkp	2592841
ZV_chinesetree	2631817
ZV_sqr	2631822
ZV_invdivexact	2631824
ZV_producttree	2636486
Z_chinese_post	3069757
ZX_nv_mod_tree	3106385
icopy_lg	3137064
Qsfcont	3137414
gboundcf	3142391
Fp_log	4259290
_mul2_remii	4308778
Fl_2powu	4358408
Fp_sqrt	4844622
Fp_sqrt_i	4903076
Fp_log_use_index	5039441
gome	5891456
Fp_invgen	6088978
_mul_montred	7093046
_Fp_sqr	8134253
Fp_easylog	8819085
_sqr_remiibar	8893561
Fp_rem_mBarrett	9736166
_mul2_montred	10515968
nonsquare1_Fl	12187174
Fl_sqrt	12488662
Fl_sqrt_i	12610334
kronecker	12751174
Fl_2powu_pre	12939154
Fl_powers_pre	13106698
ZT_sqr	13620842
_Fp_mul	14228533
Fl_sqrt_pre	22641096
_sqr_remii	26639007
kroiu	27628205
_Fp_pow	28602607
Fl_sqrt_pre_i	35324837
Fp_pow	37758680
ZV_chinese_tree	40799975
lcmii	54528203
Z_ZV_mod_tree	58140863
_sqr_montred	67642084
krouu	101497354
kross	101947429
Fl_powu	141514282
Fl_powu_pre	165585855
krouu_s	235891108
ome	330867160

Generated by: LCOV version 1.16