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 30666-e2f9826198) Lines: 1421 1535 92.6 %
Date: 2026-02-04 09:22:32 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 15434
znstar_get_gen 16150
gchar_get_cyc 16177
mkmat3 17001
zeropadic_shallow 17023
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 22078
gtomp 22428
RgM_fpnorml2 22662
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 29946
gal_get_roots 32732
gchar_get_basis 32816
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33549
Qtoss 35364
gal_get_pol 36316
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37079
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 37857
FqX_div 38564
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47734
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58505
RgX_fpnorml2 61601
err_get_num 62550
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68165
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 75643
bnr_get_mod 77119
gal_get_group 80387
mkcol3 88314
cyclic_perm 99911
gtou 100684
mkcol4 103467
zv_to_zx 104146
mkmoo 108797
zeromat 109127
RgV_isin 110144
RgV_isin_i 110144
mkvec2copy 114531
Q_abs_shallow 120226
mkmatcopy 122281
mkveccopy 122521
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138438
zeroser 138908
RgV_is_QV 140731
FqX_factor 140946
get_FpXQX_mod 146583
FlxqX_div_pre 165406
znstar_get_U 176107
rowslicepermute 185010
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200442
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220250
mkcol6 232470
ellR_get_prec 232750
zero_Flm_copy 238234
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 277485
gchar_get_zm 281911
bnf_get_tuN 283004
bnf_get_fu_nocheck 289094
bnf_get_tuU 303580
nf_get_G 304945
vec_prepend 314003
get_FlxqX_degree 317565
rnf_get_polabs 327628
Flx_constant 334015
cxtoreal 337207
upr_norm 346134
RgX_renormalize 349807
abgrp_get_no 354941
ZM_hnfrem 363768
FqX_mul 367710
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384930
RgX_is_QX 399931
perm_conj 418299
FqX_Fq_mul 427281
FqX_extgcd 444765
Z_issquare 457637
nf_get_disc 463486
precdbl 475405
RgX_shift_inplace 479366
RgX_shift_inplace_init 479366
zv_to_ZV 502982
vecsmall_to_vec 511781
nf_get_sign 519552
mkvec3s 524441
gdivsg 531591
addmuliu 535762
FqX_Fp_mul 571649
prec2nbits_mul 581166
vecsmall_ei 584700
ZM_ZV_mod 596654
RgC_fpnorml2 619849
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740250
logint 754831
gcmpgs 761925
row 763905
rnf_get_nf 786086
ellff_get_a4a6 800041
zero_F2m_copy 845050
FpXX_renormalize 849917
zeropadic 855758
gmin_shallow 877809
affgr 899594
ZXQ_sqr 960353
cgetc 975459
Flx_lead 979434
polx_F2x 1078658
pr_norm 1090577
sstoQ 1097313
Fp_invsafe 1100359
Flx_mulu 1105459
vecsmall_max 1164164
mkfracss 1209563
RgV_isscalar 1210270
gen_I 1269736
RgX_is_monomial 1331325
mkoo 1331855
bnf_get_sunits 1367775
rnf_get_absdegree 1392746
bnr_get_nf 1399073
zero_Flx 1426810
constant_coeff 1441441
Rg_col_ei 1451009
inf_get_sign 1452903
vecsmall_concat 1464270
nf_get_varn 1503769
guncloneNULL_deep 1504918
bid_get_mod 1521921
F2v_flip 1554056
F2x_flip 1554056
F2m_flip 1554057
F2x_div 1570872
uutoQ 1602144
nf_get_roots 1629021
bnf_get_gen 1680321
vec_ei 1713886
mkvecsmall5 1717488
ulogint 1722509
gsubgs 1724809
nf_get_roundG 1748253
abgrp_get_gen 1765036
ellinf 1869787
modpr_get_p 1887626
get_F2x_degree 1929002
killblock 1954434
Flx_div 1998007
ellnf_get_nf 2027230
ellff_get_field 2036872
bnr_get_bid 2046090
ell_get_j 2126269
bid_get_MOD 2157237
bid_get_sprk 2157966
ZXQ_mul 2161076
zv_copy 2183680
bid_get_fact2 2201557
gc_slice 2204313
pol_xn 2249261
pari_realloc_ip 2349027
bid_get_archp 2397127
bid_get_fact 2498957
get_F2x_mod 2499327
rnf_get_degree 2506335
bnr_get_cyc 2522560
get_F2x_var 2533996
ell_get_b4 2550216
Flv_copy 2554940
mul_content 2657332
RgX_coeff 2669861
vecslicepermute 2691047
cyc_get_expo 2757429
hash_str 2760615
perm_inv 2782025
sqrtnr 2810298
bnr_get_clgp 2830233
zero_Flm 2830620
rnf_get_pol 2845192
znstar_get_pe 2869063
F2x_equal1 2874082
bnf_get_logfu 2874772
gisdouble 2996674
mkpolmod 3103721
Fq_red 3106039
bit_accuracy_mul 3175484
ZV_to_zv 3211714
identity_perm 3242202
F3m_coeff 3255916
identity_zv 3266553
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3394358
vec_append 3464617
zero_F2v 3647702
bid_get_U 3680213
bnf_get_cyc 3686152
bnr_get_bnf 3710945
nf_get_index 3711418
pol_1 3755620
pol_x 3857340
ell_get_b6 3863115
mulsubii 3882049
pol1_F2x 3957603
vec_to_vecsmall 4036904
vecsmall_append 4114696
sqrfrac 4148212
vecsmall_copy 4403830
mkcol2s 4416244
F2x_equal 4668879
FpXQX_renormalize 4694645
mkmat 4750912
qfb_disc3 4996091
mkfraccopy 4999718
is_rational_t 5032672
bnf_get_clgp 5375018
nf_get_zkprimpart 5414019
nf_get_zkden 5459864
FpX_div 5581240
checkell_i 5593245
isintm1 5710381
bid_get_cyc 5739839
bid_get_grp 5804694
pari_stack_delete 5862299
col_ei 5924680
pari_stack_init 6353471
get_FpX_degree 6424462
Flm_copy 6433672
sqrti 6610200
get_FpX_var 6958568
RgX_div 7000642
vecsmall_lexcmp 7043256
ell_get_a2 7106183
ZM_lll 7117915
RgX_gtofp 7145401
znstar_get_faN 7334819
ell_get_b2 7371042
ZX_is_monic 7374256
zc_to_ZC 7824235
vecsmall_to_col 7838418
znstar_get_conreycyc 7982108
F2m_coeff 8038446
Q_abs 8062819
mkintmod 8092733
ZV_ZV_mod 8131999
RgM_gtofp 8258106
Flx_equal1 8329974
gc_INT_affii 8488245
ell_get_a4 8536724
Flm_row 8742277
ell_get_a3 8814063
ell_get_a1 8997095
cxtofp 9080011
veclast 9372719
ismpzero 9584659
is_intreal_t 9584771
const_col 9729664
RgM_dimensions 9741802
nf_get_invzk 9767178
bnf_get_nf 9865185
mkvec4 10094893
ser_isexactzero 10120298
ell_get_a6 10370962
mkcol 10639794
ZC_hnfrem 10697592
mul_denom 10707792
ell_get_c4 11017481
Fp_addmul 11319017
vectrunc_init 11766647
pr_get_gen 12071303
abgrp_get_cyc 12230804
F2x_clear 12353680
F2v_clear 12353681
ell_get_type 12498742
nbits2nlong 12754793
pol0_F2x 13246609
ell_get_c6 13473914
gmax_shallow 13510199
modpr_get_T 13867122
zeromatcopy 14250219
rowpermute 14706622
closure_get_frame 14716824
Fp_div 15035393
Fp_divu 15129900
mkvec5 15185875
vectrunc_append 15854918
pr_get_e 16162259
ell_get_disc 16814764
matslice 16825658
normalize_frac 17206443
pr_is_inert 17224176
isint1 17586469
Fp_center_i 18028738
cxcompotor 18211913
qfb_disc 18502561
mkvecsmall4 18670576
const_vecsmall 19706845
vecpermute 20547299
Fp_double 21016009
Flx_div_pre 21689592
nf_get_M 21746044
RgM_shallowcopy 22179373
RgX_is_ZX 22423147
gmulgs 22598298
Fp_inv 23441113
nf_get_r1 23466366
ZV_isscalar 23675359
get_Flx_mod 25594846
pr_get_f 26443533
RgX_equal_var 26883011
shallowcopy 27632469
mkqfb 27930329
zerovec 29292172
modpr_get_pr 31236648
Fp_neg 31478868
hash_str_len 31631119
submulii 31982591
RgV_is_ZV 32160180
mkmat2 33654357
RgC_gtofp 34032375
const_vec 34566430
zero_zv 36737528
polx_Flx 37484604
lincombii 38238125
znstar_get_N 38658713
mkfrac 41645233
zeropol 42353997
powii 43130476
is_vec_t 43952446
closure_is_variadic 45906155
absfrac 46643916
guncloneNULL 48019305
pr_get_tau 49768747
mkmat22 50291810
ell_is_inf 52406132
QV_isscalar 54416990
pol1_Flx 55053826
addmuliu_inplace 59636209
zero_Flv 59677211
submuliu_inplace 60128214
F2x_copy 60515192
gtodouble 60784687
is_real_t 62062521
qfb_is_qfi 62309415
Fp_sqr 64414976
Fp_mulu 68056760
get_Flx_var 68352593
mkvec 71242250
nf_get_degree 71370967
Fp_center 77289269
vecsmallpermute 78725654
rowslice 79359271
sqrtr 80378474
perm_mul 80920863
Fp_red 82194914
get_Flx_degree 82462815
pol_0 82996756
gtos 85855655
is_noncalc_t 85871408
cxnorm 91200590
mkcomplex 91616378
pr_get_p 92751180
dbllog2r 92820817
nf_get_pol 98110354
vecsmalltrunc_append 100809659
F2v_set 101403242
cgiv 102685202
RgX_copy 103406842
pol0_Flx 103475903
prec2nbits 103965576
mkvecsmall3 104182568
vecsmall_prefixcmp 108088071
gc_all 109639151
F2x_renormalize 115430290
mkvec3 118590066
zerocol 122332674
gaddgs 123248641
both_odd 124107465
F2x_set 124794386
nchar2nlong 127560435
mkvecsmall 131638386
equalim1 139505480
bit_prec 143259097
FpX_renormalize 144245007
ZX_renormalize 155052660
mkcol2 156916635
nbrows 157472627
leading_coeff 170221575
Flx_copy 173197369
Fp_add 181369683
mkvec2 185454938
nbits2prec 186137922
vecsmalltrunc_init 190115897
Fp_mul 200938987
Fp_sub 203375466
mkvecsmall2 234960587
gtofp 254332801
gc_GEN 255533709
gmulgu 283104680
lg_increase 318515373
closure_get_data 321745722
closure_get_oper 321773820
closure_codestr 321797172
is_universal_constant 326477225
lgcols 351657749
closure_arity 372207595
is_scalar_t 375659222
bin_copy 496076374
pari_free 509565111
is_bigint 563392194
leafcopy_avma 577355402
vecslice 656749917
is_matvec_t 659212036
F2v_coeff 661319072
F2x_coeff 667890477
pari_malloc 745491659
pari_stack_new 926590600
GENbinbase 961943841
pari_stack_alloc 1021867423
pari_stack_base 1027707294
gc_leaf 1137849374
equali1 1174323272
nbits2extraprec 1458043044
gc_upto 1955700868
odd 2090121465
is_pm1 2205516966
lgpol 2688773465
isintzero 2845231998
bit_accuracy 3160640639
gc_INT 4113123154
prec2lg 4470261678
is_const_t 4899484046
degpol 5494492730
remsBIL 8003885983
icopy_avma 8042715888
divsBIL 8094668754
isonstack 8278258919
is_recursive_t 9238761145

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