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 30571-c0dfe82732) Lines: 2080 2301 90.4 % Date: 2025-12-06 09:22:10 Functions: 218 233 93.6 % Legend: Lines: hit not hit

Function Name	Hit count
ECP_psi	837
Fl_2gener_pre	193797
Fl_2gener_pre_i	65765
Fl_2powu	4358612
Fl_2powu_pre	12934066
Fl_lgener_pre_all	148513
Fl_log	132572
Fl_log_Fp	0
Fl_log_naive	132572
Fl_log_naive_pre	29176
Fl_log_pre	29574
Fl_order	546583
Fl_powers	296078
Fl_powers_pre	13106231
Fl_powu	141618940
Fl_powu_pre	165461607
Fl_sqrt	12489307
Fl_sqrt_i	12610637
Fl_sqrt_pre	22638606
Fl_sqrt_pre_i	35319878
Fl_sqrtl	0
Fl_sqrtl_pre	233562
Fl_sqrtl_raw	236522
Fl_sqrtn	233411
Fl_sqrtn_pre	233412
FpV_prod	497
Fp_2gener	3327
Fp_2gener_all	5916
Fp_2gener_i	19392
Fp_easylog	8819454
Fp_factored_order	70
Fp_gausssum	363
Fp_invgen	6093384
Fp_invmBarrett	15404
Fp_log	4259586
Fp_log_find_ind	126
Fp_log_find_rel	126
Fp_log_halfgcd	55922
Fp_log_index	63
Fp_log_sieve	63
Fp_log_sieve_worker	30251
Fp_log_use_index	5039776
Fp_order	136618
Fp_pow	37763779
Fp_pow_init	105
Fp_pow_table	43694
Fp_powers	5931
Fp_pows	1346195
Fp_powu	1755528
Fp_rem_mBarrett	9736166
Fp_rootsof1	846
Fp_select_red	880200
Fp_sqrt	4844924
Fp_sqrt_i	4903410
Fp_sqrt_ii	80250
Fp_sqrtn	173548
Fp_sqrts	18505
Qsfcont	3137414
ZMV_producttree	0
ZM_nv_mod_tree	215559
ZM_nv_mod_tree_t	221016
ZT_sqr	13626460
ZVV_nv_mod_tree	5457
ZV_allpnqn	894831
ZV_chinese	5141
ZV_chinese_center	157345
ZV_chinese_tree	40762118
ZV_chinesetree	2633011
ZV_invdivexact	2633014
ZV_nv_mod_tree	1235841
ZV_producttree	2637679
ZV_sqr	2633013
ZXC_nv_mod_tree	5634
ZXM_nv_mod_tree	491
ZXX_nv_mod_tree	254889
ZX_nv_mod_tree	3106922
Z_ZV_mod	0
Z_ZV_mod_tree	58177362
Z_chinese	2142
Z_chinese_all	268054
Z_chinese_coprime	545376
Z_chinese_post	3071020
Z_chinese_pre	271782
Z_factor_listP	350651
Z_nv_mod	0
Zp_order	70
_Fp_add	1175565
_Fp_equal0	260724
_Fp_inv	34307
_Fp_mul	14228651
_Fp_neg	1086846
_Fp_one	47162
_Fp_pow	28603310
_Fp_rand	167
_Fp_red	889913
_Fp_rmul	575346
_Fp_s	19075
_Fp_sqr	8134253
_computeG	837
_gc_upto	112
_mul2_montred	10513460
_mul2_remii	4302032
_mul2_remiibar	2115908
_mul_montred	7093509
_mul_remii	1827271
_mul_remiibar	842605
_psi	1714
_sqr_montred	67702655
_sqr_remii	26658637
_sqr_remiibar	8893561
addifsmooth1	2163
addifsmooth2	83825
bestappr	105504
bestapprPade	119
bestapprPade0	126
bestappr_Q	2285869
bestappr_RgX	119
bestappr_frac	7
bestappr_real	1269816
bestappr_ser	98
check_kernel	63
checkp	2595947
chinese	5495
chinese1	2415
chinese1_coprime_Z	2460654
chinese1_coprime_Z_aux	2253539
compute_nbgen	63
contfrac0	49
contfracpnqn	266
err_oo	56
err_p	161
err_prec	196
factorial_Fl	56798
factorial_Fp	186
fibo	7
gboundcf	3142391
gc_chinese	981282
gc_empty	42
gcf	126
gcf2	0
gen_chinese	2463069
gener_Zp	259
get_Fp_field	6963
get_PHI	98
gome	5891529
hilbert	62314
hilbertii	140826
icopy_lg	3137064
init_montdata	667297
intmod2polmod	21
is_gener_Fl	1662370
is_gener_Fp	13954
is_gener_expo	4909
istotient	70000
istotient_i	621565
krois	40089
kroiu	27627868
kronecker	12751338
krosi	159682
kross	101947416
kroui	35316
krouodd	194998
krouu	101535736
krouu_s	235933420
lcmii	54536511
lift_intmod	420
lift_padic	210
lucas	56
mod_to_frac	42
mod_to_rfrac	112
mpfact	498594
mphilbertoo	7329
mpprimorial	105
muls_interval	595
mulu_interval	159073
mulu_interval_step	92761
ncV_chinese_center	10565
ncV_chinese_center_tree	5457
ncV_polint_center_tree	1515988
nmV_chinese_center	378679
nmV_chinese_center_tree	0
nmV_chinese_center_tree_seq	120585
nmV_polint_center_tree	378679
nmV_polint_center_tree_seq	120585
nmV_polint_center_tree_worker	975597
nonsquare1_Fl	12188220
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	429449
nxV_chinese_center_tree	304269
nxV_polint_center_tree	876095
odd_prime_divisors	1812
ome	330979647
opt_param	63
padic2mod	21
pgener_Fl	574946
pgener_Fl_local	1081051
pgener_Fp	44282
pgener_Fp_local	412305
pgener_Zl	205563
pgener_Zp	170807
pnqn	0
polint_chinese	378783
remove2	1812
rootsof1_Fl	215572
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	1893788
tr	59731
u_chinese_coprime	1638208
u_chinese_post	1638205
u_is_gener_expo	545006
u_odd_prime_divisors	463984
u_remove2	463984
znlog	238
znlog_rec	126
znorder	63
znprimroot	329

Generated by: LCOV version 1.16