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 30744-52374ab6cf) Lines: 1421 1535 92.6 %
Date: 2026-03-17 09:26:37 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 11557
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 23278
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 29945
gchar_get_basis 32816
gal_get_roots 32844
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33587
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 37958
FqX_div 38564
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 58513
RgX_fpnorml2 61608
err_get_num 62596
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68156
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 75754
bnr_get_mod 77119
gal_get_group 80416
mkcol3 88314
cyclic_perm 99911
gtou 100681
mkcol4 103467
zv_to_zx 104146
mkmoo 108905
zeromat 108971
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114536
Q_abs_shallow 120236
mkmatcopy 122308
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138818
zeroser 138992
FqX_factor 140960
RgV_is_QV 141995
get_FpXQX_mod 146583
FlxqX_div_pre 165416
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200662
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220727
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234924
zero_Flm_copy 238318
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 277484
gchar_get_zm 281911
bnf_get_tuN 283001
bnf_get_fu_nocheck 289099
bnf_get_tuU 303582
nf_get_G 304802
vec_prepend 313930
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337206
upr_norm 346135
RgX_renormalize 349807
FqX_mul 367934
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385012
RgX_is_QX 399936
ZM_hnfrem 401433
abgrp_get_no 406730
perm_conj 418299
FqX_Fq_mul 427304
FqX_extgcd 445027
nf_get_disc 463512
precdbl 476372
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
Z_issquare 509453
nf_get_sign 519600
mkvec3s 524441
addmuliu 541643
gdivsg 559711
zv_to_ZV 569244
FqX_Fp_mul 572204
vecsmall_to_vec 578043
prec2nbits_mul 581096
vecsmall_ei 585133
powIs 588203
ZM_ZV_mod 610718
RgC_fpnorml2 619949
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755011
gcmpgs 763127
row 763893
rnf_get_nf 786086
ellff_get_a4a6 800531
zero_F2m_copy 845261
FpXX_renormalize 849322
zeropadic 857705
gmin_shallow 898121
affgr 899594
ZXQ_sqr 960617
cgetc 975459
Flx_lead 1068659
polx_F2x 1078613
pr_norm 1090565
Flx_constant 1091696
Fp_invsafe 1097238
sstoQ 1097313
Flx_mulu 1105437
vecsmall_max 1177470
ellinf 1208484
mkfracss 1209563
RgV_isscalar 1210271
gen_I 1268880
RgX_is_monomial 1319901
mkoo 1332058
bnf_get_sunits 1367773
rnf_get_absdegree 1392746
bnr_get_nf 1399079
zero_Flx 1427277
constant_coeff 1441280
Rg_col_ei 1451105
inf_get_sign 1453204
vecsmall_concat 1464627
nf_get_varn 1503769
guncloneNULL_deep 1509257
bid_get_mod 1521920
F2m_flip 1553921
F2v_flip 1553921
F2x_flip 1553921
F2x_div 1570196
uutoQ 1602144
nf_get_roots 1628855
bnf_get_gen 1680318
vec_ei 1714771
mkvecsmall5 1718621
gsubgs 1731938
nf_get_roundG 1748488
abgrp_get_gen 1765029
modpr_get_p 1887626
get_F2x_degree 1928612
killblock 1957873
Flx_div 1999846
ellnf_get_nf 2027239
ellff_get_field 2038585
bnr_get_bid 2046097
ulogint 2075819
ell_get_j 2126269
bid_get_MOD 2157188
bid_get_sprk 2157983
ZXQ_mul 2166257
zv_copy 2184174
bid_get_fact2 2201582
gc_slice 2211080
pol_xn 2252828
pari_realloc_ip 2357825
bid_get_archp 2397137
get_F2x_mod 2490750
bid_get_fact 2498966
rnf_get_degree 2506335
bnr_get_cyc 2522561
get_F2x_var 2536940
ell_get_b4 2550293
Flv_copy 2555446
mul_content 2657503
cyc_get_expo 2757559
hash_str 2757652
sqrtnr 2810648
bnr_get_clgp 2830234
zero_Flm 2831209
rnf_get_pol 2845192
vecslicepermute 2860485
znstar_get_pe 2869063
F2x_equal1 2873761
bnf_get_logfu 2874782
RgX_coeff 2889731
gisdouble 2995880
mkpolmod 3075534
Fq_red 3106722
bit_accuracy_mul 3175715
ZV_to_zv 3211716
identity_perm 3244428
F3m_coeff 3255557
identity_zv 3268791
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3387879
vec_append 3468979
zero_F2v 3656583
bid_get_U 3680237
bnf_get_cyc 3686612
bnr_get_bnf 3710951
nf_get_index 3712017
perm_inv 3747314
pol_1 3752526
pol_x 3860498
ell_get_b6 3863192
mulsubii 3893744
pol1_F2x 3952493
vec_to_vecsmall 4039433
vecsmall_append 4114700
sqrfrac 4150951
mkcol2s 4416244
F2x_equal 4657917
FpXQX_renormalize 4693429
mkmat 4779861
qfb_disc3 4995070
mkfraccopy 4999541
is_rational_t 5017631
vecsmall_copy 5369890
bnf_get_clgp 5375467
nf_get_zkprimpart 5416315
nf_get_zkden 5462188
FpX_div 5582093
checkell_i 5593699
bid_get_cyc 5739836
bid_get_grp 5804692
pari_stack_delete 5885820
col_ei 5925405
isintm1 6086577
pari_stack_init 6375248
Flm_copy 6434627
sqrti 6612778
get_FpX_var 6954775
get_FpX_degree 6969529
RgX_div 6997065
vecsmall_lexcmp 7043250
ell_get_a2 7106329
ZM_lll 7117649
RgX_gtofp 7163975
ZX_is_monic 7319844
znstar_get_faN 7334819
ell_get_b2 7371386
zc_to_ZC 7911410
vecsmall_to_col 7925955
znstar_get_conreycyc 7982108
Q_abs 8060932
mkintmod 8065717
ZV_ZV_mod 8147268
Flx_equal1 8195724
RgM_gtofp 8257618
F2m_coeff 8358321
ell_get_a4 8536870
Flm_row 8743420
ell_get_a3 8814553
ell_get_a1 8997584
cxtofp 9093394
veclast 9374260
ismpzero 9702602
is_intreal_t 9702696
const_col 9730109
nf_get_invzk 9774760
bnf_get_nf 9866332
RgM_dimensions 9954187
mkvec4 10150231
ell_get_a6 10371108
mkcol 10653435
ZC_hnfrem 10697576
mul_denom 10709755
ell_get_c4 11018949
Fp_addmul 11238289
ser_isexactzero 11434254
gc_INT_affii 11595702
vectrunc_init 11767551
pr_get_gen 12072644
abgrp_get_cyc 12231268
F2x_clear 12361200
F2v_clear 12361205
ell_get_type 12499786
nbits2nlong 12725614
zeropol 12867502
pol0_F2x 13228052
ell_get_c6 13474624
gmax_shallow 13510228
modpr_get_T 13867118
zeromatcopy 14377908
closure_get_frame 14734933
rowpermute 14759618
Fp_div 15035001
Fp_divu 15129550
mkvec5 15187703
vectrunc_append 15858570
pr_get_e 16167251
ell_get_disc 16816707
matslice 16825770
pr_is_inert 17224413
normalize_frac 17311641
isint1 17987214
Fp_center_i 18041296
cxcompotor 18238663
qfb_disc 18502543
mkvecsmall4 18694907
const_vecsmall 18861104
Fp_double 20853086
vecpermute 21114584
Flx_div_pre 21709505
nf_get_M 21745639
RgM_shallowcopy 22235571
RgX_is_ZX 22315445
Fp_inv 23436365
nf_get_r1 23466093
ZV_isscalar 23675116
gmulgs 23887151
get_Flx_mod 25502721
pol_0 26065198
pr_get_f 26444583
RgX_equal_var 26880183
shallowcopy 27897742
mkqfb 27928269
zerovec 29348328
modpr_get_pr 31236600
Fp_neg 31480245
hash_str_len 31654941
submulii 31985153
RgV_is_ZV 32095986
mkmat2 33665910
RgC_gtofp 34034105
const_vec 34679042
zero_zv 37317544
polx_Flx 37500954
lincombii 38277049
znstar_get_N 38658713
mkfrac 41928158
powii 43130069
is_vec_t 43969867
closure_is_variadic 45930746
absfrac 46991198
ell_is_inf 49436304
pr_get_tau 49774073
guncloneNULL 49829462
mkmat22 50260475
QV_isscalar 54420909
pol1_Flx 54915488
addmuliu_inplace 59557974
F2x_copy 59745755
zero_Flv 59761590
submuliu_inplace 60067930
is_real_t 61899887
Fp_sqr 64208364
qfb_is_qfi 64562772
gtodouble 66249424
get_Flx_var 68384953
Fp_mulu 68591200
mkvec 69679158
nf_get_degree 71377832
Fp_center 77405748
vecsmallpermute 78762814
rowslice 79468037
perm_mul 80959135
get_Flx_degree 82188182
Fp_red 82931096
gtos 85865458
sqrtr 86885942
is_noncalc_t 88505305
mkcomplex 92008098
pr_get_p 92761603
cxnorm 94065503
dbllog2r 94332669
nf_get_pol 98122201
vecsmalltrunc_append 100824980
RgX_copy 102485701
gc_all 102550752
pol0_Flx 103194598
mkvecsmall3 103269372
F2v_set 104114374
cgiv 105497179
prec2nbits 106956780
vecsmall_prefixcmp 108088071
F2x_renormalize 112554312
mkvec3 119756490
gaddgs 123270564
both_odd 124175465
zerocol 125159986
F2x_set 126034301
nchar2nlong 127921119
mkvecsmall 131840883
equalim1 139567926
bit_prec 143405027
FpX_renormalize 145869152
ZX_renormalize 155224720
mkcol2 156990230
nbrows 158276336
leading_coeff 169338694
Flx_copy 173818746
Fp_add 181079221
nbits2prec 189009433
Fp_mul 201047816
Fp_sub 202585446
mkvec2 213679182
vecsmalltrunc_init 244645920
gc_GEN 247032596
mkvecsmall2 256225974
gtofp 257190274
gmulgu 283360012
closure_get_data 305886219
closure_get_oper 305917092
closure_codestr 305949834
is_universal_constant 326627971
lgcols 352700078
closure_arity 356350372
is_scalar_t 403467701
lg_increase 447132156
bin_copy 473133485
pari_free 487496882
is_bigint 574425175
leafcopy_avma 594879382
vecslice 657553534
F2v_coeff 664432950
F2x_coeff 671063925
pari_malloc 723604065
is_matvec_t 742712050
pari_stack_new 910939502
GENbinbase 919501141
pari_stack_alloc 1006262457
pari_stack_base 1012086806
gc_leaf 1143098119
equali1 1169438339
nbits2extraprec 1498368544
gc_upto 1956804690
odd 2124161162
is_pm1 2216380836
lgpol 2592392504
isintzero 2849548892
bit_accuracy 3132546939
gc_INT 4136689857
prec2lg 4567848309
is_const_t 5007102314
degpol 5517190986
icopy_avma 8051551679
remsBIL 8145193163
divsBIL 8235921928
isonstack 8327275176
is_recursive_t 9103494477

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