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:

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 - headers - pariinl.h (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30748-2ce22a5f1f) Lines: 1422 1535 92.6 %
Date: 2026-03-18 09:25:54 Functions: 650 707 91.9 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
F2m_clear 0
F2xX_shift 0
F3m_copy 0
F3m_set 0
FlxqX_div 0
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQ_add 0
FpXQ_sub 0
FqXQ_add 0
FqXQ_div 0
FqXQ_inv 0
FqXQ_invsafe 0
FqXQ_pow 0
FqXQ_sqr 0
FqXQ_sub 0
FqX_divrem 0
FqX_halfgcd 0
FqX_integ 0
FqXn_exp 0
FqXn_sqr 0
R_abs 0
RgX_isscalar 0
bid_get_gen_nocheck 0
bid_get_no 0
cbrtr 0
cbrtr_abs 0
gchar_get_U 0
gchar_get_hnf 0
gmaxsg 0
gminsg 0
inv_content 0
is_qfb_t 0
mkcol4s 0
mkerr 0
mkmat5 0
mkvec5s 0
mkvec6 0
pari_err_FILE 0
pari_err_MAXPRIME 0
pari_err_PACKAGE 0
polx_zx 0
random_Fq 0
truecoef 0
trunc_safe 0
vec_setconst 0
vecmodii 0
vecsmall_coincidence 0
zero_F2m 0
zero_zm 0
zero_zx 0
zm_copy 0
zm_row 0
zm_to_zxV 0
zx_shift 0
zx_to_zv 0
FqX_ddf 7
FqX_factor_squarefree 7
mkrfraccopy 14
pari_err_BUG 14
znstar_get_no 14
RgM_gtomp 21
mkvec4s 21
pari_err_CONSTPOL 21
vecsmall_indexmax 21
vecsmall_indexmin 21
closure_get_code 28
pari_err_FILEDESC 36
F2v_ei 42
RgV_gtofp 56
pari_err_IRREDPOL 63
pari_err_ROOTS0 63
bnr_get_gen_nocheck 70
mkmat4 84
vecsmall_isin 84
vecsmall_pack 84
gal_get_e 91
pari_err_COPRIME 91
mkcol5 94
Z_ispower 98
pari_err_FLAG 98
pari_err_PRIME 98
rnf_get_index 105
ellnf_get_bnf 119
RgX_to_RgV 140
pari_err_OVERFLOW 156
mkvecs 168
FqX_to_mod 175
pari_err_COMPONENT 214
nbits2ndec 228
pari_err_PREC 238
pari_err_PRIORITY 245
zm_transpose 266
rowsplice 273
err_get_compo 294
pol_xnall 294
mkvec6s 301
ellQp_get_prec 308
mkcol3s 315
gchar_get_nfree 322
gchar_get_ntors 322
get_F2xqX_mod 343
rnf_get_disc 357
pari_err_VAR 371
polxn_Flx 371
sturm 385
pari_err_OP 406
pari_err_IMPL 539
vecsmall_lengthen 547
RgC_gtomp 574
rnf_get_varn 574
gchar_get_r2 623
gchar_set_HUUi 630
gchar_set_nalg 630
gchar_set_nfree 630
gchar_set_ntors 630
bnf_get_reg 648
pari_err_DIM 718
perm_sqr 728
Rg_to_Fq 756
F2m_set 798
gchar_set_m0 945
row_i 987
RgM_minor 1036
quad_disc 1085
ellQp_get_p 1134
zero_F2x 1181
gchar_copy_precs 1225
gchar_set_prec 1225
rnf_get_invzk 1225
rnf_get_k 1225
locs_get_Lgenfil 1288
locs_get_famod 1288
FqX_powu 1295
pari_err_MODULUS 1316
rnf_get_idealdisc 1386
rnf_get_alpha 1428
ellQp_get_zero 1463
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_get_sfu 1743
gchar_set_evalprec 1813
mkintmodu 1834
gchar_get_nm 1869
pari_realloc 1880
RgXQX_div 1904
mkpadic 2009
gchar_get_nalg 2044
gchar_set_nf 2110
gchar_set_u0 2121
vecreverse_inplace 2605
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2876
gchar_set_nfprec 2968
vecsmall_reverse 3052
vecsmall_to_vec_inplace 3304
gchar_get_m0 3318
pari_err_TYPE2 3493
get_FpXQX_degree 3589
vecsmall_min 3710
gchar_get_evalprec 4011
gchar_get_modP 4095
FqX_normalize 4144
nf_get_r2 4154
gchar_get_u0 4252
nf_get_zk 4382
nf_get_diff 4445
F2v_copy 4487
FpXQX_div 4526
matpascal 4683
rnf_get_zk 4830
rnf_get_nfvarn 4886
idealchineseinit 5427
pari_stack_pushp 5821
FqX_get_red 6090
gal_get_p 6118
gval 6230
FqXn_expint 6590
gal_get_orders 6706
is_extscalar_t 6876
pari_err_SQRTN 7084
FqXn_inv 7126
rnf_get_nfzk 7245
FqX_roots 7273
submuliu 7700
bnr_get_gen 7847
get_FlxqX_mod 8033
identity_ZV 8120
gchar_get_mod 8225
locs_get_mod 8225
ndec2nbits 8270
FqX_gcd 8288
bnf_get_no 8372
vectrunc_append_batch 9667
prec2ndec 9778
cgetalloc 10136
ZX_equal1 10488
gchar_get_Ui 10983
vec_shorten 11556
R_abs_shallow 13097
gchar_get_nfprec 13468
closure_get_dbg 13660
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15491
znstar_get_gen 16150
gchar_get_cyc 16177
mkmat3 17001
zeropadic_shallow 17150
gchar_get_r1 17444
Fp_muls 17780
gchar_get_prec 18795
vec_lengthen 18960
FqX_halve 19411
pari_err_INV 20025
FpXY_Fq_evaly 20587
rnf_get_nfdegree 21455
FqX_mulu 21942
gtomp 22428
RgM_fpnorml2 22655
FqXQ_mul 22766
nf_get_Tr 23281
ZV_dvd 23485
gal_get_mod 23870
FqX_neg 24956
FqX_red 25354
bnf_get_fu 25859
nfV_to_scalar_or_alg 26300
gal_get_den 27867
gal_get_invvdm 27874
absfrac_shallow 28237
gequalgs 29176
zerovec_block 29654
gener_Fq_local 29946
gchar_get_basis 32816
gal_get_roots 32844
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33584
Qtoss 35364
gal_get_pol 36428
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37150
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 38153
FqX_div 38569
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47756
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58511
RgX_fpnorml2 61607
err_get_num 62596
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68155
FqX_sub 68607
mkquad 69118
FqX_div_by_X_x 69699
quadnorm 69881
FqX_sqr 71855
bid_get_ideal 72842
Fq_to_FpXQ 73652
vecsmall_shorten 75750
bnr_get_mod 77119
gal_get_group 80413
mkcol3 88314
cyclic_perm 99911
gtou 100686
mkcol4 103467
zv_to_zx 104146
mkmoo 108903
zeromat 109002
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114530
Q_abs_shallow 120215
mkmatcopy 122295
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138812
zeroser 138992
FqX_factor 140960
RgV_is_QV 141998
get_FpXQX_mod 146583
FlxqX_div_pre 165412
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200660
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220724
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234379
zero_Flm_copy 238310
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249623
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264435
bnr_get_no 277489
gchar_get_zm 281911
bnf_get_tuN 282990
bnf_get_fu_nocheck 289073
bnf_get_tuU 303573
nf_get_G 304810
vec_prepend 313933
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337208
upr_norm 346135
RgX_renormalize 349807
FqX_mul 367935
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385000
RgX_is_QX 399946
ZM_hnfrem 401377
abgrp_get_no 406717
perm_conj 418299
FqX_Fq_mul 427290
FqX_extgcd 445019
nf_get_disc 463511
precdbl 476370
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
Z_issquare 509436
nf_get_sign 519601
mkvec3s 524441
addmuliu 541608
gdivsg 559710
zv_to_ZV 569242
FqX_Fp_mul 572201
vecsmall_to_vec 578041
prec2nbits_mul 581093
vecsmall_ei 585089
powIs 588203
ZM_ZV_mod 610698
RgC_fpnorml2 619948
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755017
gcmpgs 763123
row 763877
rnf_get_nf 786086
ellff_get_a4a6 800532
zero_F2m_copy 845296
FpXX_renormalize 849322
zeropadic 857485
gmin_shallow 898154
affgr 899594
ZXQ_sqr 960513
cgetc 975461
Flx_lead 1068763
polx_F2x 1079663
pr_norm 1090509
Flx_constant 1091215
Fp_invsafe 1097233
sstoQ 1097313
Flx_mulu 1105115
vecsmall_max 1177236
ellinf 1208509
mkfracss 1209563
RgV_isscalar 1210270
gen_I 1268862
RgX_is_monomial 1319960
mkoo 1332015
bnf_get_sunits 1367776
rnf_get_absdegree 1392746
bnr_get_nf 1399080
zero_Flx 1426901
constant_coeff 1441248
Rg_col_ei 1451055
inf_get_sign 1453158
vecsmall_concat 1464658
nf_get_varn 1503729
bid_get_mod 1521922
guncloneNULL_deep 1523295
F2m_flip 1554550
F2v_flip 1554550
F2x_flip 1554550
F2x_div 1572594
uutoQ 1602144
nf_get_roots 1628825
bnf_get_gen 1680305
vec_ei 1714753
mkvecsmall5 1718700
gsubgs 1731919
nf_get_roundG 1748486
abgrp_get_gen 1765018
modpr_get_p 1887627
get_F2x_degree 1928614
killblock 1965269
Flx_div 1999772
ellnf_get_nf 2027212
ellff_get_field 2038578
bnr_get_bid 2046096
ulogint 2074417
ell_get_j 2126269
bid_get_MOD 2157256
bid_get_sprk 2157988
ZXQ_mul 2166123
zv_copy 2184178
bid_get_fact2 2201577
gc_slice 2211228
pol_xn 2252825
pari_realloc_ip 2357239
bid_get_archp 2397119
get_F2x_mod 2490684
bid_get_fact 2498940
rnf_get_degree 2506335
bnr_get_cyc 2522575
get_F2x_var 2536892
ell_get_b4 2550293
Flv_copy 2555416
mul_content 2657441
cyc_get_expo 2757535
hash_str 2757650
sqrtnr 2810613
bnr_get_clgp 2830247
zero_Flm 2830891
rnf_get_pol 2845192
vecslicepermute 2858067
znstar_get_pe 2869063
F2x_equal1 2873647
bnf_get_logfu 2874761
RgX_coeff 2889731
gisdouble 2995465
mkpolmod 3075575
Fq_red 3106349
bit_accuracy_mul 3175715
ZV_to_zv 3211716
identity_perm 3244097
F3m_coeff 3255608
identity_zv 3268461
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3387863
vec_append 3468960
zero_F2v 3656670
bid_get_U 3680236
bnf_get_cyc 3686595
bnr_get_bnf 3710943
nf_get_index 3711972
perm_inv 3747289
pol_1 3752480
pol_x 3860386
ell_get_b6 3863192
mulsubii 3892925
pol1_F2x 3951956
vec_to_vecsmall 4039424
vecsmall_append 4114732
sqrfrac 4150913
mkcol2s 4416244
F2x_equal 4666785
FpXQX_renormalize 4692856
mkmat 4779810
qfb_disc3 4995052
mkfraccopy 4999238
is_rational_t 5017649
vecsmall_copy 5369826
bnf_get_clgp 5375446
nf_get_zkprimpart 5416208
nf_get_zkden 5462040
FpX_div 5581997
checkell_i 5593729
bid_get_cyc 5739830
bid_get_grp 5804682
col_ei 5925324
pari_stack_delete 5938693
isintm1 6086566
pari_stack_init 6377913
Flm_copy 6434478
sqrti 6612744
get_FpX_var 6954436
get_FpX_degree 6969236
RgX_div 6997065
vecsmall_lexcmp 7043259
ell_get_a2 7106325
ZM_lll 7117651
RgX_gtofp 7164060
ZX_is_monic 7319863
znstar_get_faN 7334819
ell_get_b2 7371384
zc_to_ZC 7910363
vecsmall_to_col 7924909
znstar_get_conreycyc 7982108
Q_abs 8061007
mkintmod 8065687
ZV_ZV_mod 8147241
Flx_equal1 8195536
RgM_gtofp 8257608
F2m_coeff 8359570
ell_get_a4 8536866
Flm_row 8743642
ell_get_a3 8814546
ell_get_a1 8997580
cxtofp 9093886
veclast 9374223
ismpzero 9702502
is_intreal_t 9702600
const_col 9730057
nf_get_invzk 9774630
bnf_get_nf 9866273
RgM_dimensions 9953956
mkvec4 10150195
ell_get_a6 10371104
mkcol 10653372
ZC_hnfrem 10697366
mul_denom 10709518
ell_get_c4 11018028
Fp_addmul 11282508
ser_isexactzero 11434254
gc_INT_affii 11581038
vectrunc_init 11767423
pr_get_gen 12072481
abgrp_get_cyc 12231268
F2x_clear 12362350
F2v_clear 12362354
ell_get_type 12499772
nbits2nlong 12723448
zeropol 12867434
pol0_F2x 13232675
ell_get_c6 13473712
gmax_shallow 13510226
modpr_get_T 13867074
zeromatcopy 14377583
closure_get_frame 14734468
rowpermute 14758514
Fp_div 15034366
Fp_divu 15128880
mkvec5 15187526
vectrunc_append 15855079
pr_get_e 16167384
ell_get_disc 16815118
matslice 16824428
pr_is_inert 17224373
normalize_frac 17310316
Fp_center_i 17969160
isint1 17987169
cxcompotor 18239906
qfb_disc 18502500
mkvecsmall4 18677386
const_vecsmall 18860221
Fp_double 20952265
vecpermute 21106546
Flx_div_pre 21711708
nf_get_M 21745209
RgM_shallowcopy 22235115
RgX_is_ZX 22315245
Fp_inv 23436250
nf_get_r1 23465628
ZV_isscalar 23674653
gmulgs 23830047
get_Flx_mod 25500182
pol_0 26065048
pr_get_f 26444289
RgX_equal_var 26880189
shallowcopy 27896918
mkqfb 27928207
zerovec 29348220
modpr_get_pr 31236523
Fp_neg 31478339
hash_str_len 31655235
submulii 31985153
RgV_is_ZV 32095986
mkmat2 33665553
RgC_gtofp 34033075
const_vec 34676565
zero_zv 37316358
polx_Flx 37496979
lincombii 38263282
znstar_get_N 38658713
mkfrac 41923788
powii 43130072
is_vec_t 43941949
closure_is_variadic 45930329
absfrac 46991306
ell_is_inf 49397416
pr_get_tau 49773721
guncloneNULL 49843652
mkmat22 50250427
QV_isscalar 54419444
pol1_Flx 54909679
addmuliu_inplace 59641566
zero_Flv 59759053
F2x_copy 59765177
submuliu_inplace 60150524
is_real_t 61899887
Fp_sqr 64521270
qfb_is_qfi 64527736
gtodouble 66247252
Fp_mulu 66763720
get_Flx_var 68380048
mkvec 69589491
nf_get_degree 71376666
Fp_center 77233554
vecsmallpermute 78753903
rowslice 79439016
perm_mul 80950243
get_Flx_degree 81228935
Fp_red 82928613
gtos 85865397
sqrtr 86883936
is_noncalc_t 88504262
mkcomplex 92011633
pr_get_p 92761172
cxnorm 94066484
dbllog2r 94330508
nf_get_pol 98120408
vecsmalltrunc_append 100825163
RgX_copy 102485534
gc_all 102548432
pol0_Flx 103191285
mkvecsmall3 103261922
F2v_set 104115643
cgiv 105488224
prec2nbits 106946146
vecsmall_prefixcmp 108088071
F2x_renormalize 112604294
mkvec3 116895996
gaddgs 123270501
both_odd 123988233
zerocol 125152178
F2x_set 126032492
nchar2nlong 127921013
mkvecsmall 131832770
equalim1 139567984
bit_prec 143397387
FpX_renormalize 145864183
ZX_renormalize 155199266
mkcol2 156934604
nbrows 158268804
leading_coeff 169336629
Flx_copy 173793409
Fp_add 181269170
nbits2prec 188994739
Fp_mul 201050222
Fp_sub 202863783
mkvec2 212744841
vecsmalltrunc_init 242692408
gc_GEN 246881907
mkvecsmall2 256200564
gtofp 257203259
gmulgu 283360013
closure_get_data 305994523
closure_get_oper 306044213
closure_codestr 306073702
is_universal_constant 326594917
lgcols 352680148
closure_arity 356464495
is_scalar_t 403467614
lg_increase 444687690
bin_copy 473114915
pari_free 487499540
is_bigint 574345844
leafcopy_avma 594560506
vecslice 657316369
F2v_coeff 664441801
F2x_coeff 671034903
pari_malloc 723576717
is_matvec_t 742806322
pari_stack_new 911032672
GENbinbase 919464852
pari_stack_alloc 1006294185
pari_stack_base 1012259010
gc_leaf 1138537784
equali1 1169368770
nbits2extraprec 1497897859
gc_upto 1956571806
odd 2123922819
is_pm1 2215159798
lgpol 2584759571
isintzero 2848561813
bit_accuracy 3132053706
gc_INT 4135848126
prec2lg 4565552806
is_const_t 5005896059
degpol 5499566040
icopy_avma 8050828262
remsBIL 8143187017
divsBIL 8233840310
isonstack 8321430550
is_recursive_t 9101821855

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