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 30586-ccf601f509) Lines: 2080 2301 90.4 % Date: 2025-12-26 09:21:14 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
_Fp_rand	160
err_p	161
factorial_Fp	186
err_prec	196
lift_padic	210
znlog	238
gener_Zp	259
contfracpnqn	266
znprimroot	329
Fp_gausssum	351
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	820
ECP_psi	837
_computeG	837
nxMV_polint_center_tree_worker	1224
nonsquare_Fp	1456
_psi	1714
odd_prime_divisors	1812
remove2	1812
Z_chinese	2142
addifsmooth1	2163
chinese1	2415
rootsof1u_Fp	3033
Fp_2gener	3222
is_gener_expo	4909
ZV_chinese	5141
ZVV_nv_mod_tree	5456
ncV_chinese_center_tree	5457
chinese	5495
ZXC_nv_mod_tree	5634
Fp_2gener_all	5909
Fp_powers	5931
nxCV_polint_center_tree	6584
get_Fp_field	6963
mphilbertoo	7329
nonsquare_Fl	7930
ncV_chinese_center	10333
is_gener_Fp	13980
Fp_invmBarrett	14036
Fp_sqrts	18933
_Fp_s	19075
Fp_2gener_i	19392
Fl_log_naive_pre	28913
Fl_log_pre	29310
Fp_log_sieve_worker	30257
_Fp_inv	34307
kroui	35704
krois	40089
Fp_pow_table	43694
pgener_Fp	44282
_Fp_one	47162
Fp_log_halfgcd	56425
factorial_Fl	56787
tr	59731
hilbert	62314
Fl_2gener_pre_i	65849
istotient	70000
Fp_sqrt_ii	75139
addifsmooth2	83825
mulu_interval_step	92757
bestappr	105471
nmV_polint_center_tree_seq	120426
nmV_chinese_center_tree_seq	120432
Fl_log	132361
Fl_log_naive	132361
Fp_order	136407
hilbertii	140826
Fl_lgener_pre_all	146997
ZV_chinese_center	157116
mulu_interval	159073
krosi	159682
rt	169813
pgener_Zp	170793
Fp_sqrtn	173541
Fl_2gener_pre	188796
krouodd	195385
pgener_Zl	205549
ZM_nv_mod_tree	215394
rootsof1_Fl	215522
ZM_nv_mod_tree_t	220849
Fl_sqrtl_pre	229912
Fl_sqrtl_raw	232869
Fl_sqrtn	233407
Fl_sqrtn_pre	233407
ZXX_nv_mod_tree	254449
_Fp_equal0	260724
Z_chinese_all	268106
Z_chinese_pre	271826
Fl_powers	296050
nxV_chinese_center_tree	303750
Z_factor_listP	350651
nmV_chinese_center	378312
nmV_polint_center_tree	378312
polint_chinese	378416
pgener_Fp_local	412297
nxV_chinese_center	429312
u_odd_prime_divisors	463919
u_remove2	463919
mpfact	498555
u_is_gener_expo	544959
Z_chinese_coprime	545285
Fl_order	546540
pgener_Fl	574886
_Fp_rmul	575346
istotient_i	621565
init_montdata	661591
_mul_remiibar	717268
Fp_select_red	869449
nxV_polint_center_tree	875197
_Fp_red	889913
ZV_allpnqn	894831
nmV_polint_center_tree_worker	973134
gc_chinese	980316
pgener_Fl_local	1080935
_Fp_neg	1086846
_Fp_add	1175565
ZV_nv_mod_tree	1234553
bestappr_real	1272268
Fp_pows	1346189
_mul_remii	1454669
ncV_polint_center_tree	1512355
u_chinese_coprime	1636902
u_chinese_post	1636912
is_gener_Fl	1662299
Fp_powu	1754389
_mul2_remiibar	1797854
to_ZX	1883036
chinese1_coprime_Z_aux	2253539
bestappr_Q	2288744
chinese1_coprime_Z	2460644
gen_chinese	2463059
checkp	2577299
ZV_chinesetree	2630709
ZV_invdivexact	2630713
ZV_sqr	2630751
ZV_producttree	2634691
Z_chinese_post	3070923
ZX_nv_mod_tree	3093704
icopy_lg	3137064
Qsfcont	3137414
gboundcf	3142391
_mul2_remii	3535190
Fp_log	4259604
Fl_2powu	4358917
Fp_sqrt	4844515
Fp_sqrt_i	4898168
Fp_log_use_index	5039798
gome	5846380
Fp_invgen	6091185
_mul_montred	6659174
_sqr_remiibar	7579293
_Fp_sqr	8134253
Fp_rem_mBarrett	8296561
Fp_easylog	8819452
_mul2_montred	9349152
nonsquare1_Fl	12030327
Fl_sqrt	12404576
Fl_sqrt_i	12525824
kronecker	12750927
Fl_2powu_pre	12897280
Fl_powers_pre	13036638
ZT_sqr	13610008
_Fp_mul	14228517
Fl_sqrt_pre	23335648
_sqr_remii	23448612
kroiu	27625798
_Fp_pow	28603216
Fl_sqrt_pre_i	35931338
Fp_pow	37752993
ZV_chinese_tree	40666712
lcmii	54528188
Z_ZV_mod_tree	58069769
_sqr_montred	62945101
kross	100335616
krouu	102547360
Fl_powu	141267722
Fl_powu_pre	165841534
krouu_s	235327298
ome	334290956

Generated by: LCOV version 1.16