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 30401-87099e65a6) Lines: 2080 2301 90.4 % Date: 2025-07-18 09:23:12 Functions: 218 233 93.6 % Legend: Lines: hit not hit

Function Name	Hit count
ECP_psi	837
Fl_2gener_pre	193749
Fl_2gener_pre_i	65765
Fl_2powu	4358396
Fl_2powu_pre	12931787
Fl_lgener_pre_all	148230
Fl_log	132390
Fl_log_Fp	0
Fl_log_naive	132390
Fl_log_naive_pre	29031
Fl_log_pre	29429
Fl_order	542782
Fl_powers	296057
Fl_powers_pre	13095405
Fl_powu	141600154
Fl_powu_pre	165487379
Fl_sqrt	12478079
Fl_sqrt_i	12598962
Fl_sqrt_pre	22639868
Fl_sqrt_pre_i	35309107
Fl_sqrtl	0
Fl_sqrtl_pre	233358
Fl_sqrtl_raw	236199
Fl_sqrtn	232517
Fl_sqrtn_pre	232517
FpV_prod	497
Fp_2gener	3327
Fp_2gener_all	5916
Fp_2gener_i	19392
Fp_easylog	8819017
Fp_factored_order	70
Fp_gausssum	363
Fp_invgen	6086916
Fp_invmBarrett	15402
Fp_log	4259277
Fp_log_find_ind	126
Fp_log_find_rel	126
Fp_log_halfgcd	56551
Fp_log_index	63
Fp_log_sieve	63
Fp_log_sieve_worker	30252
Fp_log_use_index	5039434
Fp_order	132355
Fp_pow	37757152
Fp_pow_init	105
Fp_pow_table	43694
Fp_powers	5931
Fp_pows	1346197
Fp_powu	1754716
Fp_rem_mBarrett	9735329
Fp_rootsof1	846
Fp_select_red	880514
Fp_sqrt	4832966
Fp_sqrt_i	4891443
Fp_sqrt_ii	80238
Fp_sqrtn	173548
Fp_sqrts	18501
Qsfcont	3137344
ZMV_producttree	0
ZM_nv_mod_tree	236949
ZM_nv_mod_tree_t	242406
ZT_sqr	13788892
ZVV_nv_mod_tree	5457
ZV_allpnqn	894782
ZV_chinese	5141
ZV_chinese_center	157262
ZV_chinese_tree	40770978
ZV_chinesetree	2692878
ZV_invdivexact	2692886
ZV_nv_mod_tree	1278261
ZV_producttree	2697557
ZV_sqr	2692885
ZXC_nv_mod_tree	5634
ZXM_nv_mod_tree	491
ZXX_nv_mod_tree	254867
ZX_nv_mod_tree	3106237
Z_ZV_mod	0
Z_ZV_mod_tree	58307131
Z_chinese	2142
Z_chinese_all	267626
Z_chinese_coprime	544208
Z_chinese_post	3069324
Z_chinese_pre	271343
Z_factor_listP	350651
Z_nv_mod	0
Zp_order	70
_Fp_add	1175565
_Fp_equal0	260724
_Fp_inv	34307
_Fp_mul	14228347
_Fp_neg	1086846
_Fp_one	47162
_Fp_pow	28602573
_Fp_rand	167
_Fp_red	889913
_Fp_rmul	575346
_Fp_s	19075
_Fp_sqr	8134253
_computeG	837
_gc_upto	112
_mul2_montred	10512943
_mul2_remii	4292393
_mul2_remiibar	2115674
_mul_montred	7092554
_mul_remii	1817267
_mul_remiibar	842605
_psi	1714
_sqr_montred	67613227
_sqr_remii	26409397
_sqr_remiibar	8892724
addifsmooth1	2163
addifsmooth2	83825
bestappr	105258
bestapprPade	119
bestapprPade0	126
bestappr_Q	2283093
bestappr_RgX	119
bestappr_frac	7
bestappr_real	1269922
bestappr_ser	98
check_kernel	63
checkp	2591200
chinese	5495
chinese1	2415
chinese1_coprime_Z	2460581
chinese1_coprime_Z_aux	2253533
compute_nbgen	63
contfrac0	49
contfracpnqn	266
err_oo	56
err_p	161
err_prec	196
factorial_Fl	56831
factorial_Fp	382
fibo	7
gboundcf	3142307
gc_chinese	1023847
gc_empty	42
gcf	126
gcf2	0
gen_chinese	2462996
gener_Zp	259
get_Fp_field	6963
get_PHI	98
gome	5631174
hilbert	62314
hilbertii	140826
icopy_lg	3136994
init_montdata	667576
intmod2polmod	21
is_gener_Fl	1662674
is_gener_Fp	13963
is_gener_expo	4909
istotient	70000
istotient_i	621565
krois	40033
kroiu	27628932
kronecker	11958471
krosi	143239
kross	101883573
kroui	35325
krouodd	178564
krouu	101505303
krouu_s	235027401
lcmii	54510431
lift_intmod	420
lift_padic	210
lucas	56
mod_to_frac	42
mod_to_rfrac	112
mpfact	496581
mphilbertoo	7329
mpprimorial	105
muls_interval	623
mulu_interval	159086
mulu_interval_step	90604
ncV_chinese_center	10565
ncV_chinese_center_tree	5457
ncV_polint_center_tree	1539243
nmV_chinese_center	421534
nmV_chinese_center_tree	0
nmV_chinese_center_tree_seq	142261
nmV_polint_center_tree	421534
nmV_polint_center_tree_seq	142260
nmV_polint_center_tree_worker	998470
nonsquare1_Fl	12185439
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	429243
nxV_chinese_center_tree	304220
nxV_polint_center_tree	875910
odd_prime_divisors	1812
ome	330246156
opt_param	63
padic2mod	21
pgener_Fl	575259
pgener_Fl_local	1081331
pgener_Fp	44275
pgener_Fp_local	412300
pgener_Zl	205745
pgener_Zp	170989
pnqn	0
polint_chinese	421638
remove2	1812
rootsof1_Fl	215545
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	1893612
tr	59731
u_chinese_coprime	1636682
u_chinese_post	1636709
u_is_gener_expo	545154
u_odd_prime_divisors	464145
u_remove2	464145
znlog	238
znlog_rec	126
znorder	63
znprimroot	329

Generated by: LCOV version 1.16