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 30734-f1f26dedcb) Lines: 1421 1535 92.6 %
Date: 2026-03-07 09:24:37 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 8154038
F2m_copy 200417
F2m_flip 1553607
F2m_set 798
F2v_clear 12352347
F2v_coeff 661423745
F2v_copy 4487
F2v_ei 42
F2v_flip 1553607
F2v_set 101428358
F2v_to_F2x 37678
F2xX_shift 0
F2x_clear 12352348
F2x_coeff 668097027
F2x_copy 59100358
F2x_div 1557788
F2x_equal 4612924
F2x_equal1 2873647
F2x_flip 1553607
F2x_renormalize 111709945
F2x_set 123163866
F2xqX_div 33173
F3m_coeff 3255554
F3m_copy 0
F3m_set 0
Flm_copy 6434592
Flm_row 8743859
Flv_copy 2554102
Flx_constant 334149
Flx_copy 173171833
Flx_div 1999858
Flx_div_pre 21699727
Flx_equal1 8183248
Flx_lead 979329
Flx_mulu 1104837
FlxqX_div 0
FlxqX_div_pre 165417
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4664305
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 818704
FpXY_Fq_evaly 20587
FpX_div 5582028
FpX_renormalize 145347332
Fp_add 180985278
Fp_addmul 11259835
Fp_center 77417078
Fp_center_i 18055693
Fp_div 15034331
Fp_divu 15125183
Fp_double 20898809
Fp_halve 247271
Fp_inv 23435779
Fp_invsafe 1097103
Fp_mul 200841009
Fp_muls 17780
Fp_mulu 71396612
Fp_neg 31473543
Fp_red 82930634
Fp_sqr 64078732
Fp_sub 202750358
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 572186
FqX_Fq_mul 427302
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38565
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 445025
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 3106744
Fq_to_FpXQ 73652
GENbinbase 915709056
QV_isscalar 54419318
Q_abs 8059579
Q_abs_shallow 120236
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619950
RgC_gtofp 34034196
RgC_gtomp 574
RgM_dimensions 9953875
RgM_fpnorml2 22655
RgM_gtofp 8257811
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22234618
RgV_gtofp 56
RgV_is_QV 142001
RgV_is_ZV 32095286
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210272
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2667901
RgX_copy 102479106
RgX_div 6996190
RgX_equal_var 26879905
RgX_fpnorml2 61606
RgX_gtofp 7151330
RgX_is_QX 399942
RgX_is_ZX 22311321
RgX_is_monomial 1318140
RgX_is_rational 68156
RgX_isscalar 0
RgX_renormalize 347987
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
RgX_to_RgV 140
Rg_col_ei 1451057
Rg_to_Fq 756
ZC_hnfrem 10697503
ZM_ZV_mod 610658
ZM_hnfrem 401436
ZM_lll 7117795
ZV_ZV_mod 8147162
ZV_dvd 23485
ZV_isscalar 23675275
ZV_to_zv 3211716
ZXQ_mul 2166308
ZXQ_sqr 960622
ZX_equal1 10488
ZX_is_monic 7319777
ZX_renormalize 154947060
Z_ispower 98
Z_issquare 509441
abgrp_get_cyc 12231259
abgrp_get_gen 1765019
abgrp_get_no 406720
absfrac 46515947
absfrac_shallow 28237
addmuliu 541689
addmuliu_inplace 59563921
affc_fixlg 249624
affgr 899594
bid_get_MOD 2157259
bid_get_U 3680234
bid_get_arch 41188
bid_get_archp 2397131
bid_get_cyc 5739840
bid_get_fact 2498953
bid_get_fact2 2201577
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804689
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157981
bin_copy 471240713
bit_accuracy 3124609033
bit_accuracy_mul 3175715
bit_prec 143294406
bnf_get_clgp 5375450
bnf_get_cyc 3686599
bnf_get_fu 25858
bnf_get_fu_nocheck 289088
bnf_get_gen 1680308
bnf_get_logfu 2874754
bnf_get_nf 9866309
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367775
bnf_get_tuN 283001
bnf_get_tuU 303582
bnr_get_bid 2046099
bnr_get_bnf 3710951
bnr_get_clgp 2830266
bnr_get_cyc 2522586
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399081
bnr_get_no 277489
both_odd 124053495
cbrtr 0
cbrtr_abs 0
cgetalloc 10115
cgetc 975460
cgiv 105460635
checkell_i 5593264
closure_arity 356221212
closure_codestr 305802682
closure_get_code 28
closure_get_data 305767381
closure_get_dbg 13660
closure_get_frame 14720577
closure_get_oper 305789722
closure_get_text 37150
closure_is_variadic 45911320
col_ei 5925302
coltrunc_init 740257
const_col 9730057
const_vec 34655097
const_vecsmall 18747448
constant_coeff 1438308
cxcompotor 18212775
cxnorm 91203399
cxtofp 9080479
cxtoreal 337207
cyc_get_expo 2757554
cyclic_perm 99911
dbllog2r 92842783
degpol 5507453843
div_content 58511
divsBIL 8106829454
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997036
ell_get_a2 7106208
ell_get_a3 8814004
ell_get_a4 8536749
ell_get_a6 10370987
ell_get_b2 7370958
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11018075
ell_get_c6 13474609
ell_get_disc 16815454
ell_get_j 2126269
ell_get_type 12498994
ell_is_inf 49440979
ellff_get_a4a6 799983
ellff_get_field 2036668
ellinf 1208500
ellnf_get_bnf 119
ellnf_get_nf 2027255
equali1 1166186560
equalim1 139505730
err_get_compo 294
err_get_num 62596
gaddgs 123254019
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80414
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 245524068
gc_INT 4133200936
gc_INT_affii 11567767
gc_all 102366581
gc_leaf 1134965065
gc_slice 2206190
gc_upto 1944674324
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 761924
gdivsg 531592
gen_I 1268262
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928206
get_F2x_mod 2489636
get_F2x_var 2534482
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 83559213
get_Flx_mod 25484561
get_Flx_var 68377593
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 6942440
get_FpX_mod 3387427
get_FpX_var 6922640
gisdouble 2995994
gmax_shallow 13510226
gmaxsg 0
gmin_shallow 877893
gminsg 0
gmulgs 23830652
gmulgu 283104681
gsubgs 1730195
gtodouble 60942341
gtofp 254457075
gtomp 22428
gtos 85855688
gtou 100686
guncloneNULL 49814474
guncloneNULL_deep 1509300
gval 6230
hash_str 2741944
hash_str_len 31636953
icopy_avma 8044835800
idealchineseinit 5427
idealred 138819
identity_ZV 8120
identity_perm 3242816
identity_zv 3267168
inf_get_sign 1453147
inv_content 0
is_bigint 571791958
is_const_t 4982944888
is_extscalar_t 6736
is_intreal_t 9585430
is_matvec_t 741109150
is_noncalc_t 88450050
is_pm1 2216345203
is_qfb_t 0
is_rational_t 5015355
is_real_t 61897671
is_recursive_t 9068251469
is_scalar_t 403326256
is_universal_constant 326510351
is_vec_t 43917456
isint1 17586831
isintm1 5711254
isintzero 2839586011
ismpzero 9585338
isonstack 8302683380
killblock 1959492
leading_coeff 171283705
leafcopy_avma 590574979
lg_increase 444933403
lgcols 352690150
lgpol 2609244549
lincombii 38275526
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 754877
matpascal 3983
matslice 16825583
mkcol 10652856
mkcol2 156992311
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33586
mkcols 40411
mkcomplex 91619451
mkerr 0
mkfrac 41639760
mkfraccopy 4999676
mkfracss 1209563
mkintmod 8061450
mkintmodu 1834
mkmat 4779951
mkmat2 33665793
mkmat22 50261056
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122325
mkmoo 108904
mkoo 1332000
mkpadic 2009
mkpolmod 3075538
mkqfb 27928411
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69659330
mkvec2 212431089
mkvec2copy 114534
mkvec2s 220378
mkvec3 123788541
mkvec3s 524441
mkvec4 10146550
mkvec4s 21
mkvec5 15186614
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131325926
mkvecsmall2 235067224
mkvecsmall3 103271040
mkvecsmall4 18695780
mkvecsmall5 1717609
modpr_get_T 13867156
modpr_get_p 1887627
modpr_get_pr 31236679
mul_content 2657548
mul_denom 10709654
mulsubii 3893588
nbits2extraprec 1458692917
nbits2ndec 228
nbits2nlong 12718902
nbits2prec 186164132
nbrows 158270928
nchar2nlong 127793859
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26299
nf_get_G 304802
nf_get_M 21745735
nf_get_Tr 23281
nf_get_degree 71377406
nf_get_diff 4445
nf_get_disc 463520
nf_get_index 3712049
nf_get_invzk 9774926
nf_get_pol 98122411
nf_get_r1 23466152
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628842
nf_get_roundG 1748493
nf_get_sign 519601
nf_get_varn 1503777
nf_get_zk 4382
nf_get_zkden 5462079
nf_get_zkprimpart 5416286
normalize_frac 17206117
odd 2120519142
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 2869
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 485601982
pari_malloc 721663080
pari_realloc 1873
pari_realloc_ip 2351924
pari_stack_alloc 1005926168
pari_stack_base 1011801292
pari_stack_delete 5897115
pari_stack_init 6358780
pari_stack_new 910637697
pari_stack_pushp 5800
perm_conj 418299
perm_inv 3747328
perm_mul 80954967
perm_sqr 728
pol0_F2x 13188865
pol0_Flx 103124848
pol1_F2x 3950393
pol1_Flx 54889800
pol_0 25875579
pol_1 3750331
pol_x 3857616
pol_xn 2249704
pol_xnall 294
polx_F2x 1073456
polx_Flx 37502921
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130062
pr_get_e 16167372
pr_get_f 26444476
pr_get_gen 12072784
pr_get_p 92761186
pr_get_tau 49773658
pr_is_inert 17224383
pr_norm 1090545
prec2lg 4471973669
prec2nbits 103975880
prec2nbits_mul 581083
prec2ndec 9778
precdbl 475642
qfb_disc 18502568
qfb_disc3 4995144
qfb_is_qfi 64509121
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8015500147
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 763894
row_i 987
rowcopy 204988
rowpermute 14758107
rowslice 79455550
rowslicepermute 233704
rowsplice 273
ser_isexactzero 10120354
shallowcopy 27896229
sqrfrac 4148098
sqrti 6611323
sqrtnr 2810331
sqrtr 80382030
sstoQ 1097313
sturm 385
submulii 31985153
submuliu 7700
submuliu_inplace 60078686
truecoef 0
trunc_safe 0
ulogint 1983713
upr_norm 346136
uutoQ 1602144
vec_append 3468974
vec_ei 1714380
vec_lengthen 18960
vec_prepend 313921
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039433
veclast 9372657
vecmodii 0
vecmoduu 49784
vecpermute 21096811
vecreverse 697305
vecreverse_inplace 2605
vecslice 657358895
vecslicepermute 2855637
vecsmall_append 4114703
vecsmall_coincidence 0
vecsmall_concat 1464627
vecsmall_copy 5369234
vecsmall_ei 584742
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043245
vecsmall_max 1164154
vecsmall_min 2352
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75755
vecsmall_to_col 7922287
vecsmall_to_vec 577021
vecsmall_to_vec_inplace 3304
vecsmallpermute 78758756
vecsmalltrunc_append 100943680
vecsmalltrunc_init 243571594
vecsplice 385001
vectrunc_append 15857813
vectrunc_append_batch 9667
vectrunc_init 11767742
zc_to_ZC 7907741
zero_F2m 0
zero_F2m_copy 845037
zero_F2v 3647645
zero_F2x 1181
zero_Flm 2830901
zero_Flm_copy 238316
zero_Flv 59727821
zero_Flx 1427243
zero_zm 0
zero_zv 37292444
zero_zx 0
zerocol 125144538
zeromat 108987
zeromatcopy 14377447
zeropadic 857126
zeropadic_shallow 17087
zeropol 12864346
zeroser 138992
zerovec 29344390
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 2182836
zv_to_ZV 568222
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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