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 30532-0c728fd268) Lines: 2080 2301 90.4 % Date: 2025-10-20 09:22:51 Functions: 218 233 93.6 % Legend: Lines: hit not hit

Function Name	Hit count
ECP_psi	837
Fl_2gener_pre	193764
Fl_2gener_pre_i	65765
Fl_2powu	4359516
Fl_2powu_pre	12931280
Fl_lgener_pre_all	148331
Fl_log	132390
Fl_log_Fp	0
Fl_log_naive	132390
Fl_log_naive_pre	29169
Fl_log_pre	29567
Fl_order	542779
Fl_powers	296057
Fl_powers_pre	13085867
Fl_powu	141560886
Fl_powu_pre	165663259
Fl_sqrt	12491507
Fl_sqrt_i	12612407
Fl_sqrt_pre	22636972
Fl_sqrt_pre_i	35322977
Fl_sqrtl	0
Fl_sqrtl_pre	233570
Fl_sqrtl_raw	236411
Fl_sqrtn	232514
Fl_sqrtn_pre	232514
FpV_prod	497
Fp_2gener	3327
Fp_2gener_all	5916
Fp_2gener_i	19392
Fp_easylog	8819101
Fp_factored_order	70
Fp_gausssum	363
Fp_invgen	6088962
Fp_invmBarrett	15403
Fp_log	4259279
Fp_log_find_ind	126
Fp_log_find_rel	126
Fp_log_halfgcd	56581
Fp_log_index	63
Fp_log_sieve	63
Fp_log_sieve_worker	30250
Fp_log_use_index	5039431
Fp_order	132354
Fp_pow	37760805
Fp_pow_init	105
Fp_pow_table	43694
Fp_powers	5931
Fp_pows	1346189
Fp_powu	1755841
Fp_rem_mBarrett	9735827
Fp_rootsof1	846
Fp_select_red	880837
Fp_sqrt	4845914
Fp_sqrt_i	4904398
Fp_sqrt_ii	80247
Fp_sqrtn	173548
Fp_sqrts	18506
Qsfcont	3137414
ZMV_producttree	0
ZM_nv_mod_tree	214990
ZM_nv_mod_tree_t	220447
ZT_sqr	13619995
ZVV_nv_mod_tree	5457
ZV_allpnqn	894831
ZV_chinese	5141
ZV_chinese_center	157287
ZV_chinese_tree	40761974
ZV_chinesetree	2631544
ZV_invdivexact	2631546
ZV_nv_mod_tree	1234329
ZV_producttree	2636217
ZV_sqr	2631547
ZXC_nv_mod_tree	5634
ZXM_nv_mod_tree	491
ZXX_nv_mod_tree	254850
ZX_nv_mod_tree	3106313
Z_ZV_mod	0
Z_ZV_mod_tree	58145115
Z_chinese	2142
Z_chinese_all	267625
Z_chinese_coprime	544247
Z_chinese_post	3069379
Z_chinese_pre	271343
Z_factor_listP	350651
Z_nv_mod	0
Zp_order	70
_Fp_add	1175565
_Fp_equal0	260724
_Fp_inv	34307
_Fp_mul	14228409
_Fp_neg	1086846
_Fp_one	47162
_Fp_pow	28602577
_Fp_rand	167
_Fp_red	889913
_Fp_rmul	575346
_Fp_s	19075
_Fp_sqr	8134253
_computeG	837
_gc_upto	112
_mul2_montred	10516510
_mul2_remii	4317053
_mul2_remiibar	2115746
_mul_montred	7093969
_mul_remii	1827399
_mul_remiibar	842605
_psi	1714
_sqr_montred	67747784
_sqr_remii	26712915
_sqr_remiibar	8893222
addifsmooth1	2163
addifsmooth2	83825
bestappr	105417
bestapprPade	119
bestapprPade0	126
bestappr_Q	2283884
bestappr_RgX	119
bestappr_frac	7
bestappr_real	1269813
bestappr_ser	98
check_kernel	63
checkp	2591082
chinese	5495
chinese1	2415
chinese1_coprime_Z	2460613
chinese1_coprime_Z_aux	2253539
compute_nbgen	63
contfrac0	49
contfracpnqn	266
err_oo	56
err_p	161
err_prec	196
factorial_Fl	56844
factorial_Fp	382
fibo	7
gboundcf	3142391
gc_chinese	980354
gc_empty	42
gcf	126
gcf2	0
gen_chinese	2463029
gener_Zp	259
get_Fp_field	6963
get_PHI	98
gome	5891499
hilbert	62314
hilbertii	140826
icopy_lg	3137064
init_montdata	667817
intmod2polmod	21
is_gener_Fl	1662692
is_gener_Fp	13977
is_gener_expo	4909
istotient	70000
istotient_i	621565
krois	40089
kroiu	27627128
kronecker	12751207
krosi	159626
kross	101947425
kroui	35339
krouodd	194965
krouu	101494428
krouu_s	235884743
lcmii	54530060
lift_intmod	420
lift_padic	210
lucas	56
mod_to_frac	42
mod_to_rfrac	112
mpfact	497233
mphilbertoo	7329
mpprimorial	105
muls_interval	623
mulu_interval	159073
mulu_interval_step	92798
ncV_chinese_center	10565
ncV_chinese_center_tree	5457
ncV_polint_center_tree	1514856
nmV_chinese_center	377886
nmV_chinese_center_tree	0
nmV_chinese_center_tree_seq	120294
nmV_polint_center_tree	377886
nmV_polint_center_tree_seq	120293
nmV_polint_center_tree_worker	974754
nonsquare1_Fl	12183744
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	429371
nxV_chinese_center_tree	304212
nxV_polint_center_tree	875964
odd_prime_divisors	1812
ome	330844155
opt_param	63
padic2mod	21
pgener_Fl	575261
pgener_Fl_local	1081337
pgener_Fp	44282
pgener_Fp_local	412290
pgener_Zl	205745
pgener_Zp	170989
pnqn	0
polint_chinese	377990
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	1893609
tr	59731
u_chinese_coprime	1636474
u_chinese_post	1636476
u_is_gener_expo	545152
u_odd_prime_divisors	464144
u_remove2	464144
znlog	238
znlog_rec	126
znorder	63
znprimroot	329

Generated by: LCOV version 1.16