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 30580-ef5a862e7f) Lines: 2080 2301 90.4 % Date: 2025-12-19 09:23:05 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
factorial_Fp	186
_Fp_rand	195
err_prec	196
lift_padic	210
znlog	238
gener_Zp	259
contfracpnqn	266
znprimroot	329
Fp_gausssum	371
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
Fp_rootsof1	805
ECP_psi	837
_computeG	837
nxMV_polint_center_tree_worker	1224
nonsquare_Fp	1497
_psi	1714
odd_prime_divisors	1812
remove2	1812
Z_chinese	2142
addifsmooth1	2163
chinese1	2415
rootsof1u_Fp	3033
Fp_2gener	3299
is_gener_expo	4909
ZV_chinese	5141
ZVV_nv_mod_tree	5457
ncV_chinese_center_tree	5457
chinese	5495
ZXC_nv_mod_tree	5633
Fp_2gener_all	5916
Fp_powers	5931
nxCV_polint_center_tree	6584
get_Fp_field	6963
mphilbertoo	7329
nonsquare_Fl	7930
ncV_chinese_center	10585
is_gener_Fp	13960
Fp_invmBarrett	15502
Fp_sqrts	18731
_Fp_s	19075
Fp_2gener_i	19392
Fl_log_naive_pre	29743
Fl_log_pre	30141
Fp_log_sieve_worker	30254
_Fp_inv	34307
kroui	35753
krois	40089
Fp_pow_table	43694
pgener_Fp	44282
_Fp_one	47162
Fp_log_halfgcd	56720
factorial_Fl	56801
tr	59731
hilbert	62314
Fl_2gener_pre_i	65765
istotient	70000
Fp_sqrt_ii	80218
addifsmooth2	83825
mulu_interval_step	92772
bestappr	105481
nmV_chinese_center_tree_seq	120501
nmV_polint_center_tree_seq	120502
Fl_log	132487
Fl_log_naive	132487
Fp_order	136594
hilbertii	140826
Fl_lgener_pre_all	149544
ZV_chinese_center	157357
mulu_interval	159065
krosi	159682
rt	169813
pgener_Zp	170800
Fp_sqrtn	173555
krouodd	195435
Fl_2gener_pre	196636
pgener_Zl	205556
ZM_nv_mod_tree	215464
rootsof1_Fl	215544
ZM_nv_mod_tree_t	220921
Fl_sqrtn	233411
Fl_sqrtn_pre	233411
Fl_sqrtl_pre	235246
Fl_sqrtl_raw	238204
ZXX_nv_mod_tree	254923
_Fp_equal0	260724
Z_chinese_all	268103
Z_chinese_pre	271736
Fl_powers	296064
nxV_chinese_center_tree	304314
Z_factor_listP	350651
nmV_chinese_center	378568
nmV_polint_center_tree	378568
polint_chinese	378672
pgener_Fp_local	412301
nxV_chinese_center	429460
u_remove2	463937
u_odd_prime_divisors	463938
mpfact	498568
u_is_gener_expo	544964
Z_chinese_coprime	545208
Fl_order	546559
pgener_Fl	574898
_Fp_rmul	575346
istotient_i	621565
init_montdata	667700
_mul_remiibar	839340
nxV_polint_center_tree	876175
Fp_select_red	880253
_Fp_red	889913
ZV_allpnqn	894831
nmV_polint_center_tree_worker	975652
gc_chinese	981215
pgener_Fl_local	1080975
_Fp_neg	1086846
_Fp_add	1175565
ZV_nv_mod_tree	1235196
bestappr_real	1264502
Fp_pows	1346200
ncV_polint_center_tree	1515588
u_chinese_coprime	1638835
u_chinese_post	1638852
is_gener_Fl	1662305
Fp_powu	1755469
_mul_remii	1774886
to_ZX	1893778
_mul2_remiibar	2129440
chinese1_coprime_Z_aux	2253539
bestappr_Q	2280241
chinese1_coprime_Z	2460671
gen_chinese	2463086
ZV_chinesetree	2632863
ZV_invdivexact	2632869
ZV_sqr	2632881
ZV_producttree	2637611
checkp	2656608
Z_chinese_post	3070851
ZX_nv_mod_tree	3106950
icopy_lg	3137064
Qsfcont	3137414
gboundcf	3142391
_mul2_remii	4253039
Fp_log	4259604
Fl_2powu	4375794
Fp_sqrt	4844837
Fp_sqrt_i	4903328
Fp_log_use_index	5039803
gome	5897794
Fp_invgen	6093720
_mul_montred	7112150
_Fp_sqr	8134253
Fp_easylog	8819463
_sqr_remiibar	8898871
Fp_rem_mBarrett	9738211
_mul2_montred	10625751
nonsquare1_Fl	12265757
Fl_sqrt	12506930
Fl_sqrt_i	12628349
kronecker	12751057
Fl_2powu_pre	12992024
Fl_powers_pre	13299244
ZT_sqr	13628209
_Fp_mul	14228455
Fl_sqrt_pre	23514694
_sqr_remii	26409157
kroiu	27632441
_Fp_pow	28603391
Fl_sqrt_pre_i	36215858
Fp_pow	37763698
ZV_chinese_tree	40732823
lcmii	54535699
Z_ZV_mod_tree	58129611
_sqr_montred	67995751
kross	102527303
krouu	102896033
Fl_powu	141604692
Fl_powu_pre	166379658
krouu_s	237873280
ome	335913094

Generated by: LCOV version 1.16