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 30568-0d72d66ef5) Lines: 2080 2301 90.4 % Date: 2025-12-01 09:22:22 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	13965
Fp_invmBarrett	15404
Fp_sqrts	18505
_Fp_s	19075
Fp_2gener_i	19392
Fl_log_naive_pre	29126
Fl_log_pre	29524
Fp_log_sieve_worker	30249
_Fp_inv	34307
kroui	35327
krois	40089
Fp_pow_table	43694
pgener_Fp	44282
_Fp_one	47162
factorial_Fl	56783
Fp_log_halfgcd	56886
tr	59731
hilbert	62314
Fl_2gener_pre_i	65765
istotient	70000
Fp_sqrt_ii	80225
addifsmooth2	83825
mulu_interval_step	92765
bestappr	105483
nmV_chinese_center_tree_seq	120586
nmV_polint_center_tree_seq	120586
Fl_log	132572
Fl_log_naive	132572
Fp_order	136616
hilbertii	140826
Fl_lgener_pre_all	148472
ZV_chinese_center	157343
mulu_interval	159074
krosi	159682
rt	169813
pgener_Zp	170807
Fp_sqrtn	173548
Fl_2gener_pre	193797
krouodd	195009
pgener_Zl	205563
ZM_nv_mod_tree	215570
rootsof1_Fl	215571
ZM_nv_mod_tree_t	221027
Fl_sqrtn	233411
Fl_sqrtn_pre	233412
Fl_sqrtl_pre	233538
Fl_sqrtl_raw	236501
ZXX_nv_mod_tree	254877
_Fp_equal0	260724
Z_chinese_all	268042
Z_chinese_pre	271769
Fl_powers	296078
nxV_chinese_center_tree	304275
Z_factor_listP	350651
nmV_chinese_center	378664
nmV_polint_center_tree	378664
polint_chinese	378768
pgener_Fp_local	412300
nxV_chinese_center	429448
u_odd_prime_divisors	463983
u_remove2	463983
mpfact	498596
u_is_gener_expo	545002
Z_chinese_coprime	545127
Fl_order	546582
pgener_Fl	574944
_Fp_rmul	575346
istotient_i	621565
init_montdata	667309
_mul_remiibar	842605
nxV_polint_center_tree	875887
Fp_select_red	880150
_Fp_red	889913
ZV_allpnqn	894831
nmV_polint_center_tree_worker	975517
gc_chinese	981265
pgener_Fl_local	1081042
_Fp_neg	1086846
_Fp_add	1175565
ZV_nv_mod_tree	1235843
bestappr_real	1264303
Fp_pows	1346201
ncV_polint_center_tree	1515866
u_chinese_post	1637947
u_chinese_coprime	1638332
is_gener_Fl	1662385
Fp_powu	1755535
_mul_remii	1802941
to_ZX	1890652
_mul2_remiibar	2115908
chinese1_coprime_Z_aux	2253539
bestappr_Q	2279561
chinese1_coprime_Z	2460655
gen_chinese	2463070
checkp	2594496
ZV_chinesetree	2632992
ZV_invdivexact	2633000
ZV_sqr	2633013
ZV_producttree	2637683
Z_chinese_post	3070769
ZX_nv_mod_tree	3103439
icopy_lg	3137064
Qsfcont	3137414
gboundcf	3142391
Fp_log	4259580
_mul2_remii	4286754
Fl_2powu	4359006
Fp_sqrt	4844387
Fp_sqrt_i	4902860
Fp_log_use_index	5039769
gome	5891473
Fp_invgen	6093316
_mul_montred	7091802
_Fp_sqr	8134253
Fp_easylog	8819448
_sqr_remiibar	8893561
Fp_rem_mBarrett	9736166
_mul2_montred	10512634
nonsquare1_Fl	12199208
Fl_sqrt	12489800
Fl_sqrt_i	12611320
kronecker	12751289
Fl_2powu_pre	12947062
Fl_powers_pre	13105289
ZT_sqr	13626263
_Fp_mul	14228535
Fl_sqrt_pre	22639603
_sqr_remii	26573390
kroiu	27627415
_Fp_pow	28603323
Fl_sqrt_pre_i	35324682
Fp_pow	37763367
ZV_chinese_tree	40710297
lcmii	54531919
Z_ZV_mod_tree	58124632
_sqr_montred	67689549
krouu	101535443
kross	101947426
Fl_powu	141705125
Fl_powu_pre	165478888
krouu_s	235933615
ome	330981656

Generated by: LCOV version 1.16