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
F2m_coeff 8358321
F2m_copy 200662
F2m_flip 1553921
F2m_set 798
F2v_clear 12361205
F2v_coeff 664432950
F2v_copy 4487
F2v_ei 42
F2v_flip 1553921
F2v_set 104114374
F2v_to_F2x 37958
F2xX_shift 0
F2x_clear 12361200
F2x_coeff 671063925
F2x_copy 59745755
F2x_div 1570196
F2x_equal 4657917
F2x_equal1 2873761
F2x_flip 1553921
F2x_renormalize 112554312
F2x_set 126034301
F2xqX_div 33173
F3m_coeff 3255557
F3m_copy 0
F3m_set 0
Flm_copy 6434627
Flm_row 8743420
Flv_copy 2555446
Flx_constant 1091696
Flx_copy 173818746
Flx_div 1999846
Flx_div_pre 21709505
Flx_equal1 8195724
Flx_lead 1068659
Flx_mulu 1105437
FlxqX_div 0
FlxqX_div_pre 165416
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4693429
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582093
FpX_renormalize 145869152
Fp_add 181079221
Fp_addmul 11238289
Fp_center 77405748
Fp_center_i 18041296
Fp_div 15035001
Fp_divu 15129550
Fp_double 20853086
Fp_halve 247271
Fp_inv 23436365
Fp_invsafe 1097238
Fp_mul 201047816
Fp_muls 17780
Fp_mulu 68591200
Fp_neg 31480245
Fp_red 82931096
Fp_sqr 64208364
Fp_sub 202585446
FqXQ_add 0
FqXQ_div 0
FqXQ_inv 0
FqXQ_invsafe 0
FqXQ_mul 22766
FqXQ_pow 0
FqXQ_sqr 0
FqXQ_sub 0
FqX_Fp_mul 572204
FqX_Fq_mul 427304
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38564
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 445027
FqX_factor 140960
FqX_factor_squarefree 7
FqX_gcd 8288
FqX_get_red 6090
FqX_halfgcd 0
FqX_halve 19411
FqX_integ 0
FqX_is_squarefree 683802
FqX_mul 367934
FqX_mulu 21942
FqX_neg 24956
FqX_normalize 4144
FqX_powu 1295
FqX_red 25354
FqX_rem 37743
FqX_roots 7273
FqX_sqr 71855
FqX_sub 68607
FqX_to_mod 175
FqXn_exp 0
FqXn_expint 6590
FqXn_inv 7126
FqXn_mul 263403
FqXn_sqr 0
Fq_red 3106722
Fq_to_FpXQ 73652
GENbinbase 919501141
QV_isscalar 54420909
Q_abs 8060932
Q_abs_shallow 120236
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619949
RgC_gtofp 34034105
RgC_gtomp 574
RgM_dimensions 9954187
RgM_fpnorml2 22655
RgM_gtofp 8257618
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22235571
RgV_gtofp 56
RgV_is_QV 141995
RgV_is_ZV 32095986
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210271
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102485701
RgX_div 6997065
RgX_equal_var 26880183
RgX_fpnorml2 61608
RgX_gtofp 7163975
RgX_is_QX 399936
RgX_is_ZX 22315445
RgX_is_monomial 1319901
RgX_is_rational 68156
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
RgX_to_RgV 140
Rg_col_ei 1451105
Rg_to_Fq 756
ZC_hnfrem 10697576
ZM_ZV_mod 610718
ZM_hnfrem 401433
ZM_lll 7117649
ZV_ZV_mod 8147268
ZV_dvd 23485
ZV_isscalar 23675116
ZV_to_zv 3211716
ZXQ_mul 2166257
ZXQ_sqr 960617
ZX_equal1 10488
ZX_is_monic 7319844
ZX_renormalize 155224720
Z_ispower 98
Z_issquare 509453
abgrp_get_cyc 12231268
abgrp_get_gen 1765029
abgrp_get_no 406730
absfrac 46991198
absfrac_shallow 28237
addmuliu 541643
addmuliu_inplace 59557974
affc_fixlg 249623
affgr 899594
bid_get_MOD 2157188
bid_get_U 3680237
bid_get_arch 41188
bid_get_archp 2397137
bid_get_cyc 5739836
bid_get_fact 2498966
bid_get_fact2 2201582
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804692
bid_get_ideal 72842
bid_get_mod 1521920
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157983
bin_copy 473133485
bit_accuracy 3132546939
bit_accuracy_mul 3175715
bit_prec 143405027
bnf_get_clgp 5375467
bnf_get_cyc 3686612
bnf_get_fu 25859
bnf_get_fu_nocheck 289099
bnf_get_gen 1680318
bnf_get_logfu 2874782
bnf_get_nf 9866332
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367773
bnf_get_tuN 283001
bnf_get_tuU 303582
bnr_get_bid 2046097
bnr_get_bnf 3710951
bnr_get_clgp 2830234
bnr_get_cyc 2522561
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399079
bnr_get_no 277484
both_odd 124175465
cbrtr 0
cbrtr_abs 0
cgetalloc 10136
cgetc 975459
cgiv 105497179
checkell_i 5593699
closure_arity 356350372
closure_codestr 305949834
closure_get_code 28
closure_get_data 305886219
closure_get_dbg 13660
closure_get_frame 14734933
closure_get_oper 305917092
closure_get_text 37150
closure_is_variadic 45930746
col_ei 5925405
coltrunc_init 740257
const_col 9730109
const_vec 34679042
const_vecsmall 18861104
constant_coeff 1441280
cxcompotor 18238663
cxnorm 94065503
cxtofp 9093394
cxtoreal 337206
cyc_get_expo 2757559
cyclic_perm 99911
dbllog2r 94332669
degpol 5517190986
div_content 58513
divsBIL 8235921928
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997584
ell_get_a2 7106329
ell_get_a3 8814553
ell_get_a4 8536870
ell_get_a6 10371108
ell_get_b2 7371386
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11018949
ell_get_c6 13474624
ell_get_disc 16816707
ell_get_j 2126269
ell_get_type 12499786
ell_is_inf 49436304
ellff_get_a4a6 800531
ellff_get_field 2038585
ellinf 1208484
ellnf_get_bnf 119
ellnf_get_nf 2027239
equali1 1169438339
equalim1 139567926
err_get_compo 294
err_get_num 62596
gaddgs 123270564
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80416
gal_get_invvdm 27874
gal_get_mod 23870
gal_get_orders 6706
gal_get_p 6118
gal_get_pol 36428
gal_get_roots 32844
gc_GEN 247032596
gc_INT 4136689857
gc_INT_affii 11595702
gc_all 102550752
gc_leaf 1143098119
gc_slice 2211080
gc_upto 1956804690
gchar_copy_precs 1225
gchar_get_DLdata 190673
gchar_get_S 36995
gchar_get_U 0
gchar_get_Ui 10983
gchar_get_basis 32816
gchar_get_bnf 205373
gchar_get_cyc 16177
gchar_get_evalprec 4011
gchar_get_hnf 0
gchar_get_loccyc 50519
gchar_get_m0 3318
gchar_get_mod 8225
gchar_get_modP 4095
gchar_get_nalg 2044
gchar_get_nc 37261
gchar_get_nf 243946
gchar_get_nfprec 13468
gchar_get_nfree 322
gchar_get_nm 1869
gchar_get_ns 36995
gchar_get_ntors 322
gchar_get_prec 18795
gchar_get_r1 17444
gchar_get_r2 623
gchar_get_sfu 1743
gchar_get_u0 4252
gchar_get_zm 281911
gchar_set_HUUi 630
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_set_evalprec 1813
gchar_set_m0 945
gchar_set_nalg 630
gchar_set_nf 2110
gchar_set_nfprec 2968
gchar_set_nfree 630
gchar_set_ntors 630
gchar_set_prec 1225
gchar_set_u0 2121
gcmpgs 763127
gdivsg 559711
gen_I 1268880
gener_Fq_local 29945
gequalgs 29176
get_F2x_degree 1928612
get_F2x_mod 2490750
get_F2x_var 2536940
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82188182
get_Flx_mod 25502721
get_Flx_var 68384953
get_FlxqX_degree 317580
get_FlxqX_mod 8033
get_FlxqX_var 264435
get_FpXQX_degree 3589
get_FpXQX_mod 146583
get_FpXQX_var 51630
get_FpX_degree 6969529
get_FpX_mod 3387879
get_FpX_var 6954775
gisdouble 2995880
gmax_shallow 13510228
gmaxsg 0
gmin_shallow 898121
gminsg 0
gmulgs 23887151
gmulgu 283360012
gsubgs 1731938
gtodouble 66249424
gtofp 257190274
gtomp 22428
gtos 85865458
gtou 100681
guncloneNULL 49829462
guncloneNULL_deep 1509257
gval 6230
hash_str 2757652
hash_str_len 31654941
icopy_avma 8051551679
idealchineseinit 5427
idealred 138818
identity_ZV 8120
identity_perm 3244428
identity_zv 3268791
inf_get_sign 1453204
inv_content 0
is_bigint 574425175
is_const_t 5007102314
is_extscalar_t 6876
is_intreal_t 9702696
is_matvec_t 742712050
is_noncalc_t 88505305
is_pm1 2216380836
is_qfb_t 0
is_rational_t 5017631
is_real_t 61899887
is_recursive_t 9103494477
is_scalar_t 403467701
is_universal_constant 326627971
is_vec_t 43969867
isint1 17987214
isintm1 6086577
isintzero 2849548892
ismpzero 9702602
isonstack 8327275176
killblock 1957873
leading_coeff 169338694
leafcopy_avma 594879382
lg_increase 447132156
lgcols 352700078
lgpol 2592392504
lincombii 38277049
locs_get_Lgenfil 1288
locs_get_Lsprk 193935
locs_get_cyc 52136
locs_get_famod 1288
locs_get_m_infty 209475
locs_get_mod 8225
logint 755011
matpascal 4683
matslice 16825770
mkcol 10653435
mkcol2 156990230
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33587
mkcols 40411
mkcomplex 92008098
mkerr 0
mkfrac 41928158
mkfraccopy 4999541
mkfracss 1209563
mkintmod 8065717
mkintmodu 1834
mkmat 4779861
mkmat2 33665910
mkmat22 50260475
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122308
mkmoo 108905
mkoo 1332058
mkpadic 2009
mkpolmod 3075534
mkqfb 27928269
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69679158
mkvec2 213679182
mkvec2copy 114536
mkvec2s 220727
mkvec3 119756490
mkvec3s 524441
mkvec4 10150231
mkvec4s 21
mkvec5 15187703
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131840883
mkvecsmall2 256225974
mkvecsmall3 103269372
mkvecsmall4 18694907
mkvecsmall5 1718621
modpr_get_T 13867118
modpr_get_p 1887626
modpr_get_pr 31236600
mul_content 2657503
mul_denom 10709755
mulsubii 3893744
nbits2extraprec 1498368544
nbits2ndec 228
nbits2nlong 12725614
nbits2prec 189009433
nbrows 158276336
nchar2nlong 127921119
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304802
nf_get_M 21745639
nf_get_Tr 23278
nf_get_degree 71377832
nf_get_diff 4445
nf_get_disc 463512
nf_get_index 3712017
nf_get_invzk 9774760
nf_get_pol 98122201
nf_get_r1 23466093
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628855
nf_get_roundG 1748488
nf_get_sign 519600
nf_get_varn 1503769
nf_get_zk 4382
nf_get_zkden 5462188
nf_get_zkprimpart 5416315
normalize_frac 17311641
odd 2124161162
pari_calloc 47756
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
pari_err_DIM 718
pari_err_DOMAIN 2876
pari_err_FILE 0
pari_err_FILEDESC 36
pari_err_FLAG 98
pari_err_IMPL 539
pari_err_INV 20025
pari_err_IRREDPOL 63
pari_err_MAXPRIME 0
pari_err_MODULUS 1316
pari_err_OP 406
pari_err_OVERFLOW 156
pari_err_PACKAGE 0
pari_err_PREC 238
pari_err_PRIME 98
pari_err_PRIORITY 245
pari_err_ROOTS0 63
pari_err_SQRTN 7084
pari_err_TYPE 15370
pari_err_TYPE2 3493
pari_err_VAR 371
pari_free 487496882
pari_malloc 723604065
pari_realloc 1880
pari_realloc_ip 2357825
pari_stack_alloc 1006262457
pari_stack_base 1012086806
pari_stack_delete 5885820
pari_stack_init 6375248
pari_stack_new 910939502
pari_stack_pushp 5821
perm_conj 418299
perm_inv 3747314
perm_mul 80959135
perm_sqr 728
pol0_F2x 13228052
pol0_Flx 103194598
pol1_F2x 3952493
pol1_Flx 54915488
pol_0 26065198
pol_1 3752526
pol_x 3860498
pol_xn 2252828
pol_xnall 294
polx_F2x 1078613
polx_Flx 37500954
polx_zx 0
polxn_Flx 371
powIs 588203
powii 43130069
pr_get_e 16167251
pr_get_f 26444583
pr_get_gen 12072644
pr_get_p 92761603
pr_get_tau 49774073
pr_is_inert 17224413
pr_norm 1090565
prec2lg 4567848309
prec2nbits 106956780
prec2nbits_mul 581096
prec2ndec 9778
precdbl 476372
qfb_disc 18502543
qfb_disc3 4995070
qfb_is_qfi 64562772
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8145193163
rnf_get_absdegree 1392746
rnf_get_alpha 1428
rnf_get_degree 2506335
rnf_get_disc 357
rnf_get_idealdisc 1386
rnf_get_index 105
rnf_get_invzk 1225
rnf_get_k 1225
rnf_get_map 135659
rnf_get_nf 786086
rnf_get_nfdegree 21455
rnf_get_nfpol 255354
rnf_get_nfvarn 4886
rnf_get_nfzk 7245
rnf_get_pol 2845192
rnf_get_polabs 327628
rnf_get_ramified_primes 2849
rnf_get_varn 574
rnf_get_zk 4830
row 763893
row_i 987
rowcopy 204988
rowpermute 14759618
rowslice 79468037
rowslicepermute 234924
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27897742
sqrfrac 4150951
sqrti 6612778
sqrtnr 2810648
sqrtr 86885942
sstoQ 1097313
sturm 385
submulii 31985153
submuliu 7700
submuliu_inplace 60067930
truecoef 0
trunc_safe 0
ulogint 2075819
upr_norm 346135
uutoQ 1602144
vec_append 3468979
vec_ei 1714771
vec_lengthen 18960
vec_prepend 313930
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039433
veclast 9374260
vecmodii 0
vecmoduu 49784
vecpermute 21114584
vecreverse 697305
vecreverse_inplace 2605
vecslice 657553534
vecslicepermute 2860485
vecsmall_append 4114700
vecsmall_coincidence 0
vecsmall_concat 1464627
vecsmall_copy 5369890
vecsmall_ei 585133
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043250
vecsmall_max 1177470
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75754
vecsmall_to_col 7925955
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78762814
vecsmalltrunc_append 100824980
vecsmalltrunc_init 244645920
vecsplice 385012
vectrunc_append 15858570
vectrunc_append_batch 9667
vectrunc_init 11767551
zc_to_ZC 7911410
zero_F2m 0
zero_F2m_copy 845261
zero_F2v 3656583
zero_F2x 1181
zero_Flm 2831209
zero_Flm_copy 238318
zero_Flv 59761590
zero_Flx 1427277
zero_zm 0
zero_zv 37317544
zero_zx 0
zerocol 125159986
zeromat 108971
zeromatcopy 14377908
zeropadic 857705
zeropadic_shallow 17150
zeropol 12867502
zeroser 138992
zerovec 29348328
zerovec_block 29654
zm_copy 0
zm_row 0
zm_to_zxV 0
zm_transpose 266
znstar_get_N 38658713
znstar_get_U 176107
znstar_get_Ui 46788
znstar_get_conreycyc 7982108
znstar_get_conreygen 3290526
znstar_get_cyc 262088
znstar_get_faN 7334819
znstar_get_gen 16150
znstar_get_no 14
znstar_get_pe 2869063
zv_copy 2184174
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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