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 30658-0716cf3506) Lines: 1421 1535 92.6 %
Date: 2026-01-31 09:22:40 Functions: 649 707 91.8 %
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
closure_get_code 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
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
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
zero_F2x 1350
rnf_get_idealdisc 1386
rnf_get_alpha 1428
ellQp_get_zero 1463
powIs 1561
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_get_sfu 1743
gchar_set_evalprec 1813
mkintmodu 1813
gchar_get_nm 1869
pari_realloc 1890
RgXQX_div 1904
mkpadic 2009
gchar_get_nalg 2044
gchar_set_nf 2110
gchar_set_u0 2121
vecsmall_min 2345
vecreverse_inplace 2605
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2862
gchar_set_nfprec 2968
vecsmall_reverse 3052
vecsmall_to_vec_inplace 3304
gchar_get_m0 3318
pari_err_TYPE2 3493
get_FpXQX_degree 3589
matpascal 3983
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
rnf_get_zk 4830
rnf_get_nfvarn 4886
idealchineseinit 5427
pari_stack_pushp 5851
gal_get_p 6006
FqX_get_red 6090
gval 6230
FqXn_expint 6590
gal_get_orders 6678
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 8113
gchar_get_mod 8225
locs_get_mod 8225
ndec2nbits 8270
FqX_gcd 8288
bnf_get_no 8372
vectrunc_append_batch 9667
prec2ndec 9778
cgetalloc 10166
gchar_get_Ui 10983
vec_shorten 11557
ZX_equal1 12850
R_abs_shallow 13097
gchar_get_nfprec 13468
closure_get_dbg 13635
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15435
znstar_get_gen 16150
gchar_get_cyc 16177
mkmat3 17001
zeropadic_shallow 17024
gchar_get_r1 17444
Fp_muls 17780
gchar_get_prec 18795
vec_lengthen 18960
FqX_halve 19411
pari_err_INV 20018
FpXY_Fq_evaly 20587
rnf_get_nfdegree 21455
FqX_mulu 21942
nf_get_Tr 22082
gtomp 22428
RgM_fpnorml2 22661
FqXQ_mul 22766
ZV_dvd 23485
gal_get_mod 23758
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
gal_get_roots 32732
gchar_get_basis 32816
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33553
Qtoss 35322
gal_get_pol 36316
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37079
gchar_get_nc 37261
F2v_to_F2x 37597
FqX_rem 37743
FqX_div 38567
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47720
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58504
RgX_fpnorml2 61602
err_get_num 62550
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68164
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 75631
bnr_get_mod 77119
gal_get_group 80388
mkcol3 88314
cyclic_perm 99911
gtou 100706
mkcol4 103467
zv_to_zx 104146
mkmoo 108782
zeromat 109098
RgV_isin 110144
RgV_isin_i 110144
mkvec2copy 114524
Q_abs_shallow 120228
mkmatcopy 122272
mkveccopy 122521
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138434
zeroser 138908
RgV_is_QV 140732
FqX_factor 140946
get_FpXQX_mod 146583
FlxqX_div_pre 165415
znstar_get_U 176107
rowslicepermute 184915
vecsmall_prepend 186970
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200419
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220244
mkcol6 232470
ellR_get_prec 232750
zero_Flm_copy 238230
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249621
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264420
bnr_get_no 277492
gchar_get_zm 281911
bnf_get_tuN 283006
bnf_get_fu_nocheck 289096
bnf_get_tuU 303590
nf_get_G 304907
vec_prepend 314010
get_FlxqX_degree 317565
rnf_get_polabs 327628
Flx_constant 333952
cxtoreal 337204
upr_norm 346136
RgX_renormalize 349807
abgrp_get_no 354950
ZM_hnfrem 363797
FqX_mul 367712
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384912
RgX_is_QX 399930
perm_conj 418299
FqX_Fq_mul 427298
FqX_extgcd 444775
Z_issquare 457641
nf_get_disc 463482
precdbl 475392
RgX_shift_inplace 479366
RgX_shift_inplace_init 479366
zv_to_ZV 502982
vecsmall_to_vec 511781
nf_get_sign 519550
mkvec3s 524441
gdivsg 531591
addmuliu 535772
FqX_Fp_mul 571651
prec2nbits_mul 581166
vecsmall_ei 584721
ZM_ZV_mod 596484
RgC_fpnorml2 619849
FqX_is_squarefree 683802
vecreverse 697277
mkrfrac 698439
coltrunc_init 740250
logint 754840
gcmpgs 761920
row 763878
rnf_get_nf 786086
ellff_get_a4a6 800041
zero_F2m_copy 844974
FpXX_renormalize 849917
zeropadic 855853
gmin_shallow 877754
affgr 899594
ZXQ_sqr 960435
cgetc 975457
Flx_lead 978039
polx_F2x 1072294
pr_norm 1090524
sstoQ 1097215
Fp_invsafe 1100358
Flx_mulu 1105386
vecsmall_max 1163851
mkfracss 1209563
RgV_isscalar 1210272
gen_I 1269732
RgX_is_monomial 1331397
mkoo 1331917
bnf_get_sunits 1367774
rnf_get_absdegree 1392746
bnr_get_nf 1399079
zero_Flx 1426702
constant_coeff 1441428
Rg_col_ei 1451046
inf_get_sign 1452950
vecsmall_concat 1464149
nf_get_varn 1503760
guncloneNULL_deep 1509189
bid_get_mod 1521918
F2m_flip 1552778
F2v_flip 1552778
F2x_flip 1552778
F2x_div 1556901
uutoQ 1600212
nf_get_roots 1628979
bnf_get_gen 1680317
vec_ei 1713882
ulogint 1715488
mkvecsmall5 1717484
gsubgs 1724815
nf_get_roundG 1748212
abgrp_get_gen 1765029
ellinf 1870026
modpr_get_p 1887627
get_F2x_degree 1928919
killblock 1956369
Flx_div 1998032
ellnf_get_nf 2027239
ellff_get_field 2036874
bnr_get_bid 2046091
ell_get_j 2126269
bid_get_MOD 2157261
bid_get_sprk 2157994
ZXQ_mul 2161180
zv_copy 2183841
bid_get_fact2 2201581
gc_slice 2204274
pol_xn 2249281
pari_realloc_ip 2346996
bid_get_archp 2397141
bid_get_fact 2498944
get_F2x_mod 2499268
rnf_get_degree 2506335
bnr_get_cyc 2522578
get_F2x_var 2533915
ell_get_b4 2550216
Flv_copy 2555051
mul_content 2657292
RgX_coeff 2669861
vecslicepermute 2689882
cyc_get_expo 2757553
hash_str 2760615
perm_inv 2781996
sqrtnr 2810333
zero_Flm 2829559
bnr_get_clgp 2830252
rnf_get_pol 2845192
znstar_get_pe 2869063
F2x_equal1 2873932
bnf_get_logfu 2874773
gisdouble 2997007
mkpolmod 3103724
Fq_red 3106159
bit_accuracy_mul 3175484
ZV_to_zv 3211408
identity_perm 3241725
F3m_coeff 3255916
identity_zv 3266073
znstar_get_conreygen 3290176
ell_get_b8 3297414
get_FpX_mod 3394371
vec_append 3464630
zero_F2v 3647387
bid_get_U 3680239
bnf_get_cyc 3686158
bnr_get_bnf 3710953
nf_get_index 3711382
pol_1 3755676
pol_x 3857154
ell_get_b6 3863115
mulsubii 3882626
pol1_F2x 3957434
vec_to_vecsmall 4036638
vecsmall_append 4099106
sqrfrac 4148346
vecsmall_copy 4403871
mkcol2s 4416244
F2x_equal 4604341
FpXQX_renormalize 4694003
mkmat 4750906
qfb_disc3 4996045
mkfraccopy 4999353
is_rational_t 5032725
bnf_get_clgp 5375016
nf_get_zkprimpart 5414096
nf_get_zkden 5459943
FpX_div 5581229
checkell_i 5593225
isintm1 5710312
bid_get_cyc 5739853
bid_get_grp 5804706
pari_stack_delete 5885476
col_ei 5924583
pari_stack_init 6351779
get_FpX_degree 6424320
Flm_copy 6433541
sqrti 6610312
get_FpX_var 6958038
RgX_div 7000642
vecsmall_lexcmp 7043259
ell_get_a2 7106184
ZM_lll 7118118
RgX_gtofp 7145339
znstar_get_faN 7331711
ell_get_b2 7371034
ZX_is_monic 7374244
zc_to_ZC 7824196
vecsmall_to_col 7838378
znstar_get_conreycyc 7979693
F2m_coeff 8034609
Q_abs 8062629
mkintmod 8092673
ZV_ZV_mod 8131490
RgM_gtofp 8258615
Flx_equal1 8329712
gc_INT_affii 8488687
ell_get_a4 8536725
Flm_row 8741185
ell_get_a3 8814055
ell_get_a1 8997087
cxtofp 9079189
veclast 9372722
ismpzero 9584787
is_intreal_t 9584886
const_col 9729692
RgM_dimensions 9741760
nf_get_invzk 9767426
bnf_get_nf 9865198
mkvec4 10093861
ser_isexactzero 10120284
ell_get_a6 10370963
mkcol 10639751
ZC_hnfrem 10697598
mul_denom 10707894
ell_get_c4 11017244
Fp_addmul 11304052
vectrunc_init 11767968
pr_get_gen 12071285
abgrp_get_cyc 12230836
F2x_clear 12351312
F2v_clear 12351326
ell_get_type 12498785
nbits2nlong 12755336
pol0_F2x 13192638
ell_get_c6 13473720
gmax_shallow 13510200
modpr_get_T 13867127
zeromatcopy 14250791
rowpermute 14705722
closure_get_frame 14715413
Fp_div 15033948
Fp_divu 15128442
mkvec5 15185726
vectrunc_append 15854604
pr_get_e 16161976
ell_get_disc 16813567
matslice 16819563
normalize_frac 17204905
pr_is_inert 17224079
isint1 17584886
Fp_center_i 17941028
cxcompotor 18210165
qfb_disc 18502505
mkvecsmall4 18662518
const_vecsmall 19705966
vecpermute 20545517
Fp_double 21001876
Flx_div_pre 21688086
nf_get_M 21745579
RgM_shallowcopy 22179577
RgX_is_ZX 22423292
gmulgs 22631676
Fp_inv 23440458
nf_get_r1 23466094
ZV_isscalar 23674786
get_Flx_mod 25595423
pr_get_f 26443215
RgX_equal_var 26882998
shallowcopy 27632161
mkqfb 27930191
zerovec 28453730
modpr_get_pr 31236588
Fp_neg 31479953
hash_str_len 31630632
submulii 31982591
RgV_is_ZV 32158277
mkmat2 33654642
RgC_gtofp 34036583
const_vec 34564194
zero_zv 36719061
polx_Flx 37488808
lincombii 38243319
znstar_get_N 38655073
mkfrac 41641469
zeropol 42353898
powii 43130469
is_vec_t 43962828
closure_is_variadic 45903176
absfrac 46638710
guncloneNULL 48023682
pr_get_tau 49768524
mkmat22 50275134
ell_is_inf 52389183
QV_isscalar 54417095
pol1_Flx 55057496
zero_Flv 59657108
addmuliu_inplace 59657343
F2x_copy 59756625
submuliu_inplace 60145499
gtodouble 60781047
is_real_t 62062520
qfb_is_qfi 62319907
Fp_sqr 64328109
Fp_mulu 67099248
get_Flx_var 68356601
mkvec 71114264
nf_get_degree 71370835
Fp_center 77090345
vecsmallpermute 78696015
rowslice 79298480
sqrtr 80378357
perm_mul 80891167
get_Flx_degree 81998125
Fp_red 82192754
pol_0 82996680
gtos 85855569
is_noncalc_t 85871983
cxnorm 91199504
mkcomplex 91612461
pr_get_p 92750427
dbllog2r 92818626
nf_get_pol 98108640
vecsmalltrunc_append 100747047
F2v_set 101399812
cgiv 102673199
RgX_copy 103406821
pol0_Flx 103419996
prec2nbits 103964639
mkvecsmall3 104184742
vecsmall_prefixcmp 108088071
gc_all 109633563
F2x_renormalize 114390208
mkvec3 117172971
zerocol 122341312
gaddgs 123248645
both_odd 123777510
F2x_set 124538841
nchar2nlong 127566958
mkvecsmall 131576327
equalim1 139505441
bit_prec 143267996
FpX_renormalize 144211265
ZX_renormalize 155012357
mkcol2 156841688
nbrows 157476127
leading_coeff 170221362
Flx_copy 173208380
Fp_add 181412772
mkvec2 185583239
nbits2prec 186144314
vecsmalltrunc_init 190296232
Fp_mul 200812584
Fp_sub 203003597
mkvecsmall2 234941846
gtofp 254368398
gc_GEN 255371951
gmulgu 282059385
lg_increase 317574439
closure_get_data 322080200
closure_get_oper 322113942
closure_codestr 322153409
is_universal_constant 326508141
lgcols 351603133
closure_arity 372524954
is_scalar_t 375659412
bin_copy 496054453
pari_free 509554054
is_bigint 563402602
leafcopy_avma 577237730
vecslice 655908525
is_matvec_t 659513669
F2v_coeff 661296655
F2x_coeff 667878419
pari_malloc 745477542
pari_stack_new 926872718
GENbinbase 961906140
pari_stack_alloc 1022110107
pari_stack_base 1028000315
gc_leaf 1135896106
equali1 1174329659
nbits2extraprec 1458184469
gc_upto 1954418112
odd 2089455888
is_pm1 2204989263
lgpol 2682871333
isintzero 2844636352
bit_accuracy 3156338586
gc_INT 4111331407
prec2lg 4468778755
is_const_t 4898784617
degpol 5486248309
remsBIL 7999700513
icopy_avma 8040181951
divsBIL 8090902082
isonstack 8273740818
is_recursive_t 9238334623

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