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 30556-bb9f5f8fc8) Lines: 2080 2301 90.4 % Date: 2025-11-25 09:20:50 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	7935
ncV_chinese_center	10565
is_gener_Fp	13960
Fp_invmBarrett	15402
Fp_sqrts	18504
_Fp_s	19075
Fp_2gener_i	19392
Fl_log_naive_pre	29113
Fl_log_pre	29511
Fp_log_sieve_worker	30250
_Fp_inv	34307
kroui	35308
krois	40089
Fp_pow_table	43694
pgener_Fp	44261
_Fp_one	47162
Fp_log_halfgcd	55922
factorial_Fl	56796
tr	59731
hilbert	62314
Fl_2gener_pre_i	65765
istotient	70000
Fp_sqrt_ii	80249
addifsmooth2	83825
mulu_interval_step	92730
bestappr	104280
nmV_chinese_center_tree_seq	109487
nmV_polint_center_tree_seq	109488
Fl_log	127599
Fl_log_naive	127599
Fp_order	136616
hilbertii	140826
Fl_lgener_pre_all	148491
ZV_chinese_center	156519
mulu_interval	159079
krosi	159682
rt	169813
pgener_Zp	170688
Fp_sqrtn	173527
ZM_nv_mod_tree	193454
Fl_2gener_pre	193768
krouodd	194990
ZM_nv_mod_tree_t	198911
pgener_Zl	205444
rootsof1_Fl	215214
Fl_sqrtn	233457
Fl_sqrtn_pre	233457
Fl_sqrtl_pre	233680
Fl_sqrtl_raw	236641
ZXX_nv_mod_tree	254686
_Fp_equal0	260724
Z_chinese_all	268085
Z_chinese_pre	271809
Fl_powers	295889
nxV_chinese_center_tree	303856
Z_factor_listP	350651
nmV_chinese_center	356109
nmV_polint_center_tree	356109
polint_chinese	356213
pgener_Fp_local	410824
nxV_chinese_center	426613
u_odd_prime_divisors	463629
u_remove2	463629
mpfact	498426
Z_chinese_coprime	535242
u_is_gener_expo	544389
Fl_order	546713
pgener_Fl	574697
_Fp_rmul	575346
istotient_i	621565
init_montdata	667069
_mul_remiibar	842605
nxV_polint_center_tree	872897
Fp_select_red	879932
_Fp_red	889913
ZV_allpnqn	894831
nmV_polint_center_tree_worker	939409
gc_chinese	955052
pgener_Fl_local	1079222
_Fp_neg	1086846
_Fp_add	1175565
ZV_nv_mod_tree	1199046
bestappr_real	1234540
Fp_pows	1346133
ncV_polint_center_tree	1467256
u_chinese_coprime	1618035
u_chinese_post	1618050
is_gener_Fl	1660905
Fp_powu	1751501
_mul_remii	1826184
to_ZX	1892769
_mul2_remiibar	2115123
bestappr_Q	2229613
chinese1_coprime_Z_aux	2253497
chinese1_coprime_Z	2459717
gen_chinese	2462132
ZV_chinesetree	2592575
ZV_invdivexact	2592581
ZV_sqr	2592584
ZV_producttree	2597244
checkp	2598126
Z_chinese_post	3060839
ZX_nv_mod_tree	3102232
icopy_lg	3137064
Qsfcont	3137414
gboundcf	3142391
Fp_log	4259088
_mul2_remii	4323753
Fl_2powu	4358270
Fp_sqrt	4844948
Fp_sqrt_i	4903374
Fp_log_use_index	5039168
gome	5891571
Fp_invgen	6028803
_mul_montred	7093657
_Fp_sqr	8134253
Fp_easylog	8818925
_sqr_remiibar	8891968
Fp_rem_mBarrett	9734573
_mul2_montred	10510442
nonsquare1_Fl	12197677
Fl_sqrt	12491331
Fl_sqrt_i	12612824
kronecker	12751096
Fl_2powu_pre	12842868
Fl_powers_pre	13115692
ZT_sqr	13458851
_Fp_mul	14228414
Fl_sqrt_pre	22648566
_sqr_remii	26677033
kroiu	27630252
_Fp_pow	28601778
Fl_sqrt_pre_i	35335726
Fp_pow	37752581
ZV_chinese_tree	40213503
lcmii	53115443
Z_ZV_mod_tree	57887931
_sqr_montred	67653398
krouu	101429631
kross	101947424
Fl_powu	141668626
Fl_powu_pre	165352140
krouu_s	235829758
ome	330890782

Generated by: LCOV version 1.16