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 30724-b49b12e983) Lines: 1422 1535 92.6 %
Date: 2026-03-02 09:24:58 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 8154785
F2m_copy 200421
F2m_flip 1553710
F2m_set 798
F2v_clear 12352978
F2v_coeff 661427800
F2v_copy 4487
F2v_ei 42
F2v_flip 1553710
F2v_set 101428429
F2v_to_F2x 37756
F2xX_shift 0
F2x_clear 12352970
F2x_coeff 668027457
F2x_copy 59076439
F2x_div 1558858
F2x_equal 4613634
F2x_equal1 2873822
F2x_flip 1553710
F2x_renormalize 111702378
F2x_set 123133407
F2xqX_div 33173
F3m_coeff 3255869
F3m_copy 0
F3m_set 0
Flm_copy 6433568
Flm_row 8742178
Flv_copy 2553854
Flx_constant 333995
Flx_copy 173109912
Flx_div 1998009
Flx_div_pre 21689417
Flx_equal1 8183029
Flx_lead 979128
Flx_mulu 1104830
FlxqX_div 0
FlxqX_div_pre 165409
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4664269
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 818704
FpXY_Fq_evaly 20587
FpX_div 5581065
FpX_renormalize 145345193
Fp_add 180843684
Fp_addmul 11226235
Fp_center 77396345
Fp_center_i 18051710
Fp_div 15034373
Fp_divu 15125202
Fp_double 20826376
Fp_halve 247271
Fp_inv 23435695
Fp_invsafe 1097050
Fp_mul 200778373
Fp_muls 17780
Fp_mulu 69593925
Fp_neg 31469828
Fp_red 82930806
Fp_sqr 63860383
Fp_sub 202675060
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 571667
FqX_Fq_mul 427294
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38566
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444774
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 367711
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 3106679
Fq_to_FpXQ 73652
GENbinbase 915651069
QV_isscalar 54416578
Q_abs 8058898
Q_abs_shallow 120234
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619851
RgC_gtofp 34030043
RgC_gtomp 574
RgM_dimensions 9954199
RgM_fpnorml2 22662
RgM_gtofp 8257655
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22231186
RgV_gtofp 56
RgV_is_QV 140732
RgV_is_ZV 32095116
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210270
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2667922
RgX_copy 102485678
RgX_div 6996183
RgX_equal_var 26879171
RgX_fpnorml2 61602
RgX_gtofp 7145393
RgX_is_QX 399930
RgX_is_ZX 22301587
RgX_is_monomial 1336584
RgX_is_rational 68166
RgX_isscalar 0
RgX_renormalize 347987
RgX_shift_inplace 479401
RgX_shift_inplace_init 479401
RgX_to_RgV 140
Rg_col_ei 1451023
Rg_to_Fq 756
ZC_hnfrem 10697460
ZM_ZV_mod 610757
ZM_hnfrem 401383
ZM_lll 7117522
ZV_ZV_mod 8147289
ZV_dvd 23485
ZV_isscalar 23674678
ZV_to_zv 3211716
ZXQ_mul 2160730
ZXQ_sqr 960380
ZX_equal1 10488
ZX_is_monic 7320987
ZX_renormalize 154927975
Z_ispower 98
Z_issquare 509449
abgrp_get_cyc 12230879
abgrp_get_gen 1765031
abgrp_get_no 406728
absfrac 46514426
absfrac_shallow 28237
addmuliu 541616
addmuliu_inplace 59634850
affc_fixlg 249617
affgr 899594
bid_get_MOD 2157248
bid_get_U 3680226
bid_get_arch 41188
bid_get_archp 2397154
bid_get_cyc 5739868
bid_get_fact 2498972
bid_get_fact2 2201573
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804721
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157979
bin_copy 471208719
bit_accuracy 3124240501
bit_accuracy_mul 3175712
bit_prec 143257806
bnf_get_clgp 5375015
bnf_get_cyc 3686152
bnf_get_fu 25859
bnf_get_fu_nocheck 289079
bnf_get_gen 1680317
bnf_get_logfu 2874772
bnf_get_nf 9865178
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367777
bnf_get_tuN 282993
bnf_get_tuU 303575
bnr_get_bid 2046093
bnr_get_bnf 3710941
bnr_get_clgp 2830253
bnr_get_cyc 2522578
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399082
bnr_get_no 277487
both_odd 123943080
cbrtr 0
cbrtr_abs 0
cgetalloc 10115
cgetc 975458
cgiv 105464236
checkell_i 5593229
closure_arity 356256978
closure_codestr 305842268
closure_get_code 28
closure_get_data 305804466
closure_get_dbg 13674
closure_get_frame 14716835
closure_get_oper 305828837
closure_get_text 37164
closure_is_variadic 45906875
col_ei 5924640
coltrunc_init 740257
const_col 9729677
const_vec 34643405
const_vecsmall 18744712
constant_coeff 1438472
cxcompotor 18213085
cxnorm 91203457
cxtofp 9080637
cxtoreal 337205
cyc_get_expo 2757542
cyclic_perm 99911
dbllog2r 92822697
degpol 5492470858
div_content 58506
divsBIL 8105899853
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997038
ell_get_a2 7106200
ell_get_a3 8814006
ell_get_a4 8536741
ell_get_a6 10370979
ell_get_b2 7370968
ell_get_b4 2550223
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017802
ell_get_c6 13474308
ell_get_disc 16815448
ell_get_j 2126255
ell_get_type 12498961
ell_is_inf 49375017
ellff_get_a4a6 799970
ellff_get_field 2036639
ellinf 1208319
ellnf_get_bnf 119
ellnf_get_nf 2027239
equali1 1166193072
equalim1 139504404
err_get_compo 294
err_get_num 62575
gaddgs 123248532
gal_get_den 27867
gal_get_e 91
gal_get_gen 15435
gal_get_group 80388
gal_get_invvdm 27874
gal_get_mod 23758
gal_get_orders 6678
gal_get_p 6006
gal_get_pol 36316
gal_get_roots 32732
gc_GEN 237350165
gc_INT 4133085236
gc_INT_affii 11570181
gc_all 102358565
gc_leaf 1131089861
gc_slice 2204413
gc_upto 1944548688
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 761921
gdivsg 531592
gen_I 1268179
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1927991
get_F2x_mod 2489599
get_F2x_var 2534145
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82665650
get_Flx_mod 25476397
get_Flx_var 68356254
get_FlxqX_degree 317580
get_FlxqX_mod 8033
get_FlxqX_var 264435
get_FpXQX_degree 3589
get_FpXQX_mod 131148
get_FpXQX_var 51630
get_FpX_degree 6941906
get_FpX_mod 3387379
get_FpX_var 6922419
gisdouble 2995875
gmax_shallow 13510197
gmaxsg 0
gmin_shallow 877787
gminsg 0
gmulgs 23897328
gmulgu 283104681
gsubgs 1724705
gtodouble 60904256
gtofp 254371052
gtomp 22428
gtos 85855689
gtou 100679
guncloneNULL 49812272
guncloneNULL_deep 1510293
gval 6230
hash_str 2741979
hash_str_len 31635166
icopy_avma 8044611225
idealchineseinit 5427
idealred 138441
identity_ZV 8113
identity_perm 3242402
identity_zv 3266753
inf_get_sign 1452914
inv_content 0
is_bigint 571791356
is_const_t 4950084438
is_extscalar_t 6736
is_intreal_t 9584486
is_matvec_t 709980572
is_noncalc_t 88482343
is_pm1 2215277383
is_qfb_t 0
is_rational_t 5010337
is_real_t 61899772
is_recursive_t 9059598772
is_scalar_t 387739542
is_universal_constant 326416567
is_vec_t 43921346
isint1 17585080
isintm1 5709656
isintzero 2840412626
ismpzero 9584391
isonstack 8298757026
killblock 1958932
leading_coeff 171272938
leafcopy_avma 582187191
lg_increase 447776410
lgcols 352666932
lgpol 2662210793
lincombii 38262851
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 754783
matpascal 3983
matslice 16825036
mkcol 10652599
mkcol2 156989954
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33568
mkcols 40411
mkcomplex 91622138
mkerr 0
mkfrac 41640425
mkfraccopy 4999722
mkfracss 1209563
mkintmod 8061341
mkintmodu 1834
mkmat 4779620
mkmat2 33665771
mkmat22 50257003
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122281
mkmoo 108805
mkoo 1331865
mkpadic 2009
mkpolmod 3076110
mkqfb 27929801
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69668943
mkvec2 212801760
mkvec2copy 114531
mkvec2s 220246
mkvec3 121151998
mkvec3s 524441
mkvec4 10146487
mkvec4s 21
mkvec5 15185862
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131282446
mkvecsmall2 235025429
mkvecsmall3 103252810
mkvecsmall4 18692796
mkvecsmall5 1717491
modpr_get_T 13867210
modpr_get_p 1887627
modpr_get_pr 31236784
mul_content 2657325
mul_denom 10707603
mulsubii 3888313
nbits2extraprec 1458715135
nbits2ndec 228
nbits2nlong 12715469
nbits2prec 186136516
nbrows 158244289
nchar2nlong 127757526
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304830
nf_get_M 21745435
nf_get_Tr 22080
nf_get_degree 71370182
nf_get_diff 4445
nf_get_disc 463475
nf_get_index 3711401
nf_get_invzk 9767630
nf_get_pol 98100379
nf_get_r1 23465848
nf_get_r2 4154
nf_get_ramified_primes 64644
nf_get_roots 1628896
nf_get_roundG 1748145
nf_get_sign 519553
nf_get_varn 1503773
nf_get_zk 4382
nf_get_zkden 5459734
nf_get_zkprimpart 5413968
normalize_frac 17206468
odd 2120331114
pari_calloc 47609
pari_err_BUG 21
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
pari_err_DIM 718
pari_err_DOMAIN 2862
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 231
pari_err_ROOTS0 63
pari_err_SQRTN 7084
pari_err_TYPE 15370
pari_err_TYPE2 3493
pari_err_VAR 371
pari_free 485576655
pari_malloc 721638166
pari_realloc 1873
pari_realloc_ip 2350117
pari_stack_alloc 1005903619
pari_stack_base 1011784110
pari_stack_delete 5895628
pari_stack_init 6353829
pari_stack_new 910632520
pari_stack_pushp 5800
perm_conj 418299
perm_inv 3746752
perm_mul 80948145
perm_sqr 728
pol0_F2x 13185591
pol0_Flx 103080286
pol1_F2x 3949171
pol1_Flx 54871713
pol_0 62684042
pol_1 3750391
pol_x 3857205
pol_xn 2249372
pol_xnall 294
polx_F2x 1073923
polx_Flx 37486420
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130308
pr_get_e 16162071
pr_get_f 26443105
pr_get_gen 12071218
pr_get_p 92750901
pr_get_tau 49768666
pr_is_inert 17224162
pr_norm 1090442
prec2lg 4473150178
prec2nbits 103974872
prec2nbits_mul 581081
prec2ndec 9778
precdbl 475404
qfb_disc 18502599
qfb_disc3 4995813
qfb_is_qfi 64491633
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8015314335
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 763901
row_i 987
rowcopy 204988
rowpermute 14755742
rowslice 79467123
rowslicepermute 233777
rowsplice 273
ser_isexactzero 10120354
shallowcopy 27893731
sqrfrac 4148103
sqrti 6610262
sqrtnr 2810055
sqrtr 80378662
sstoQ 1097313
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60128673
truecoef 0
trunc_safe 0
ulogint 1983191
upr_norm 346136
uutoQ 1602144
vec_append 3464680
vec_ei 1713867
vec_lengthen 18960
vec_prepend 313923
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036982
veclast 9372616
vecmodii 0
vecmoduu 49784
vecpermute 21093901
vecreverse 697305
vecreverse_inplace 2605
vecslice 657541524
vecslicepermute 2855422
vecsmall_append 4114690
vecsmall_coincidence 0
vecsmall_concat 1464192
vecsmall_copy 5368485
vecsmall_ei 584705
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043235
vecsmall_max 1163986
vecsmall_min 2352
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75641
vecsmall_to_col 7920507
vecsmall_to_vec 576881
vecsmall_to_vec_inplace 3304
vecsmallpermute 78752975
vecsmalltrunc_append 100864802
vecsmalltrunc_init 243907170
vecsplice 384939
vectrunc_append 15853207
vectrunc_append_batch 9667
vectrunc_init 11767179
zc_to_ZC 7906325
zero_F2m 0
zero_F2m_copy 845025
zero_F2v 3647569
zero_F2x 1181
zero_Flm 2830855
zero_Flm_copy 238228
zero_Flv 59721734
zero_Flx 1426181
zero_zm 0
zero_zv 37288603
zero_zx 0
zerocol 125127032
zeromat 109070
zeromatcopy 14377222
zeropadic 857164
zeropadic_shallow 17087
zeropol 27322031
zeroser 138992
zerovec 29343465
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 2182600
zv_to_ZV 568082
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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