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 30733-eb2d773d38) Lines: 1422 1535 92.6 %
Date: 2026-03-03 09:24:12 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
znstar_get_no 14
RgM_gtomp 21
mkvec4s 21
pari_err_BUG 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
powIs 1561
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_get_sfu 1743
gchar_set_evalprec 1813
mkintmodu 1834
gchar_get_nm 1869
pari_realloc 1873
RgXQX_div 1904
mkpadic 2009
gchar_get_nalg 2044
gchar_set_nf 2110
gchar_set_u0 2121
vecsmall_min 2352
vecreverse_inplace 2605
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2869
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 5800
FqX_get_red 6090
gal_get_p 6118
gval 6230
FqXn_expint 6590
gal_get_orders 6706
is_extscalar_t 6736
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 10115
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 17087
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 22662
FqXQ_mul 22766
nf_get_Tr 23280
ZV_dvd 23485
gal_get_mod 23870
FqX_neg 24956
FqX_red 25354
bnf_get_fu 25858
nfV_to_scalar_or_alg 26300
gal_get_den 27867
gal_get_invvdm 27873
absfrac_shallow 28237
gequalgs 29176
zerovec_block 29654
gener_Fq_local 29946
gchar_get_basis 32816
gal_get_roots 32843
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33585
Qtoss 35364
gal_get_pol 36427
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37150
gchar_get_nc 37261
F2v_to_F2x 37633
FqX_rem 37743
FqX_div 38566
FqX_deriv 40061
mkcols 40411
bid_get_arch 41187
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47609
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58512
RgX_fpnorml2 61601
err_get_num 62596
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68166
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 75753
bnr_get_mod 77118
gal_get_group 80414
mkcol3 88314
cyclic_perm 99911
gtou 100710
mkcol4 103467
zv_to_zx 104146
mkmoo 108902
zeromat 108975
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114536
Q_abs_shallow 120225
mkmatcopy 122275
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
get_FpXQX_mod 131148
rnf_get_map 135659
idealred 138820
zeroser 138992
FqX_factor 140960
RgV_is_QV 142001
FlxqX_div_pre 165410
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200416
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220379
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 233664
zero_Flm_copy 238310
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249622
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264435
bnr_get_no 277490
gchar_get_zm 281911
bnf_get_tuN 282993
bnf_get_fu_nocheck 289094
bnf_get_tuU 303579
nf_get_G 304707
vec_prepend 313918
get_FlxqX_degree 317580
rnf_get_polabs 327628
Flx_constant 334151
cxtoreal 337207
upr_norm 346136
RgX_renormalize 347987
FqX_mul 367934
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385018
RgX_is_QX 399943
ZM_hnfrem 401460
abgrp_get_no 406723
perm_conj 418299
FqX_Fq_mul 427287
FqX_extgcd 445019
nf_get_disc 463522
precdbl 475634
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
Z_issquare 509440
nf_get_sign 519601
mkvec3s 524441
gdivsg 531589
addmuliu 541599
zv_to_ZV 568222
FqX_Fp_mul 572188
vecsmall_to_vec 577021
prec2nbits_mul 581080
vecsmall_ei 584810
ZM_ZV_mod 610654
RgC_fpnorml2 619949
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 754879
gcmpgs 761927
row 763896
rnf_get_nf 786086
ellff_get_a4a6 799989
FpXX_renormalize 818704
zero_F2m_copy 845040
zeropadic 856937
gmin_shallow 877901
affgr 899594
ZXQ_sqr 960614
cgetc 975459
Flx_lead 979372
polx_F2x 1074239
pr_norm 1090413
Fp_invsafe 1097141
sstoQ 1097313
Flx_mulu 1104849
vecsmall_max 1164144
ellinf 1208308
mkfracss 1209563
RgV_isscalar 1210268
gen_I 1268258
mkoo 1332152
RgX_is_monomial 1336715
bnf_get_sunits 1367775
rnf_get_absdegree 1392746
bnr_get_nf 1399075
zero_Flx 1427143
constant_coeff 1438306
Rg_col_ei 1451095
inf_get_sign 1453300
vecsmall_concat 1464637
nf_get_varn 1503773
guncloneNULL_deep 1507072
bid_get_mod 1521922
F2m_flip 1553940
F2v_flip 1553940
F2x_flip 1553940
F2x_div 1558908
uutoQ 1602144
nf_get_roots 1628798
bnf_get_gen 1680309
vec_ei 1714368
mkvecsmall5 1717657
gsubgs 1730192
nf_get_roundG 1748410
abgrp_get_gen 1765018
modpr_get_p 1887627
get_F2x_degree 1928096
killblock 1957481
ulogint 1982425
Flx_div 1999809
ellnf_get_nf 2027245
ellff_get_field 2036654
bnr_get_bid 2046094
ell_get_j 2126269
bid_get_MOD 2157258
bid_get_sprk 2157986
ZXQ_mul 2165900
zv_copy 2182738
bid_get_fact2 2201577
gc_slice 2205985
pol_xn 2249725
pari_realloc_ip 2351825
bid_get_archp 2397135
get_F2x_mod 2489659
bid_get_fact 2498953
rnf_get_degree 2506335
bnr_get_cyc 2522565
get_F2x_var 2534333
ell_get_b4 2550216
Flv_copy 2554006
mul_content 2657539
RgX_coeff 2667901
hash_str 2741944
cyc_get_expo 2757548
sqrtnr 2810146
bnr_get_clgp 2830254
zero_Flm 2830920
rnf_get_pol 2845192
vecslicepermute 2855477
znstar_get_pe 2869063
F2x_equal1 2873794
bnf_get_logfu 2874755
gisdouble 2995161
mkpolmod 3076544
Fq_red 3106724
bit_accuracy_mul 3175715
ZV_to_zv 3211714
identity_perm 3242853
F3m_coeff 3255553
identity_zv 3267204
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3387445
vec_append 3469031
zero_F2v 3647640
bid_get_U 3680235
bnf_get_cyc 3686598
bnr_get_bnf 3710952
nf_get_index 3712029
perm_inv 3747242
pol_1 3750277
pol_x 3857846
ell_get_b6 3863115
mulsubii 3893181
pol1_F2x 3949217
vec_to_vecsmall 4039460
vecsmall_append 4114709
sqrfrac 4148303
mkcol2s 4416244
F2x_equal 4616982
FpXQX_renormalize 4664060
mkmat 4779964
qfb_disc3 4994972
mkfraccopy 4999640
is_rational_t 5015698
vecsmall_copy 5369086
bnf_get_clgp 5375447
nf_get_zkprimpart 5416380
nf_get_zkden 5462224
FpX_div 5582019
checkell_i 5593240
isintm1 5711178
bid_get_cyc 5739843
bid_get_grp 5804689
pari_stack_delete 5881068
col_ei 5925361
pari_stack_init 6358792
Flm_copy 6434583
sqrti 6611389
get_FpX_var 6922709
get_FpX_degree 6942311
RgX_div 6996183
vecsmall_lexcmp 7043259
ell_get_a2 7106198
ZM_lll 7117463
RgX_gtofp 7151319
ZX_is_monic 7321273
znstar_get_faN 7334819
ell_get_b2 7370976
zc_to_ZC 7907654
vecsmall_to_col 7922201
znstar_get_conreycyc 7982108
Q_abs 8059521
mkintmod 8061752
ZV_ZV_mod 8147115
F2m_coeff 8154700
Flx_equal1 8183285
RgM_gtofp 8257394
ell_get_a4 8536739
Flm_row 8743743
ell_get_a3 8814012
ell_get_a1 8997044
cxtofp 9079211
veclast 9372633
ismpzero 9585055
is_intreal_t 9585147
const_col 9730123
nf_get_invzk 9774953
bnf_get_nf 9866311
RgM_dimensions 9953805
ser_isexactzero 10120354
mkvec4 10146486
ell_get_a6 10370977
mkcol 10652835
ZC_hnfrem 10697713
mul_denom 10709966
ell_get_c4 11017641
Fp_addmul 11327793
gc_INT_affii 11566143
vectrunc_init 11767065
pr_get_gen 12072439
abgrp_get_cyc 12231247
F2x_clear 12352768
F2v_clear 12352775
ell_get_type 12498888
nbits2nlong 12714198
pol0_F2x 13184019
ell_get_c6 13474125
gmax_shallow 13510228
modpr_get_T 13867141
zeromatcopy 14376762
closure_get_frame 14720439
rowpermute 14758108
Fp_div 15034708
Fp_divu 15125444
mkvec5 15186440
vectrunc_append 15856890
pr_get_e 16167119
ell_get_disc 16815155
matslice 16825229
normalize_frac 17206315
pr_is_inert 17224045
isint1 17586718
Fp_center_i 18056272
cxcompotor 18210165
qfb_disc 18502599
mkvecsmall4 18694109
const_vecsmall 18747630
Fp_double 21030573
vecpermute 21098034
Flx_div_pre 21699749
nf_get_M 21745383
RgM_shallowcopy 22233214
RgX_is_ZX 22311668
Fp_inv 23436104
nf_get_r1 23465967
ZV_isscalar 23674834
gmulgs 23822000
get_Flx_mod 25482730
pr_get_f 26443884
RgX_equal_var 26879556
zeropol 27319495
shallowcopy 27896715
mkqfb 27928189
zerovec 29344532
modpr_get_pr 31236670
Fp_neg 31469701
hash_str_len 31637025
submulii 31985229
RgV_is_ZV 32095292
mkmat2 33666046
RgC_gtofp 34031508
const_vec 34653940
zero_zv 37290641
polx_Flx 37499259
lincombii 38276553
znstar_get_N 38658713
mkfrac 41639112
powii 43129942
is_vec_t 43929895
closure_is_variadic 45910853
absfrac 46515988
ell_is_inf 49413774
pr_get_tau 49772881
guncloneNULL 49813520
mkmat22 50259961
QV_isscalar 54421350
pol1_Flx 54887385
F2x_copy 59091580
addmuliu_inplace 59554472
zero_Flv 59723429
submuliu_inplace 60061539
gtodouble 60940132
is_real_t 61899776
pol_0 62682234
Fp_sqr 64294164
qfb_is_qfi 64478884
get_Flx_var 68375789
Fp_mulu 68763880
mkvec 69657612
nf_get_degree 71377711
Fp_center 77413924
vecsmallpermute 78757983
rowslice 79463443
sqrtr 80379001
perm_mul 80952926
get_Flx_degree 82180901
Fp_red 82928443
gtos 85855790
is_noncalc_t 88481413
cxnorm 91200316
mkcomplex 91608874
pr_get_p 92759844
dbllog2r 92840510
nf_get_pol 98123072
vecsmalltrunc_append 100835033
F2v_set 101428866
gc_all 102367357
RgX_copy 102488548
pol0_Flx 103105068
mkvecsmall3 103268060
prec2nbits 103972761
cgiv 105462603
vecsmall_prefixcmp 108088071
F2x_renormalize 111761962
mkvec3 119649372
F2x_set 123144928
gaddgs 123253989
both_odd 124147390
zerocol 125137506
nchar2nlong 127788894
mkvecsmall 131309418
equalim1 139505612
bit_prec 143283194
FpX_renormalize 145351039
ZX_renormalize 154924103
mkcol2 156996877
nbrows 158266739
leading_coeff 171282640
Flx_copy 173153479
Fp_add 181148713
nbits2prec 186158887
Fp_mul 200951446
Fp_sub 203027392
mkvec2 212800420
mkvecsmall2 235064035
gc_GEN 237345490
vecsmalltrunc_init 244046605
gtofp 254431283
gmulgu 283104681
closure_get_data 306025669
closure_get_oper 306045920
closure_codestr 306064434
is_universal_constant 326537463
lgcols 352680838
closure_arity 356494791
is_scalar_t 387758715
lg_increase 446678239
bin_copy 471258227
pari_free 485615424
is_bigint 571778122
leafcopy_avma 582286427
vecslice 657438242
F2v_coeff 661426512
F2x_coeff 668009195
is_matvec_t 710273863
pari_malloc 721686518
pari_stack_new 910943586
GENbinbase 915752172
pari_stack_alloc 1006232467
pari_stack_base 1012097116
gc_leaf 1129477045
equali1 1166177298
nbits2extraprec 1458468748
gc_upto 1944684908
odd 2120863838
is_pm1 2215149556
lgpol 2661958478
isintzero 2839117885
bit_accuracy 3124305382
gc_INT 4133538382
prec2lg 4472229118
is_const_t 4949187814
degpol 5488290448
remsBIL 8014663222
icopy_avma 8045041972
divsBIL 8105522772
isonstack 8297862326
is_recursive_t 9059896569

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