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 30764-6b81f1f3fa) Lines: 1421 1535 92.6 %
Date: 2026-03-25 09:26:52 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 8363040
F2m_copy 200670
F2m_flip 1554198
F2m_set 798
F2v_clear 12361868
F2v_coeff 664442099
F2v_copy 4487
F2v_ei 42
F2v_flip 1554198
F2v_set 104115753
F2v_to_F2x 38120
F2xX_shift 0
F2x_clear 12361875
F2x_coeff 670988545
F2x_copy 59758677
F2x_div 1570729
F2x_equal 4660957
F2x_equal1 2873818
F2x_flip 1554198
F2x_renormalize 112530027
F2x_set 125987268
F2xqX_div 33173
F3m_coeff 3255606
F3m_copy 0
F3m_set 0
Flm_copy 6434677
Flm_row 8743413
Flv_copy 2555410
Flx_constant 1091743
Flx_copy 173828794
Flx_div 1999844
Flx_div_pre 21710481
Flx_equal1 8195701
Flx_lead 1069043
Flx_mulu 1105477
FlxqX_div 0
FlxqX_div_pre 165414
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4692930
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582082
FpX_renormalize 145857952
Fp_add 180997167
Fp_addmul 11206218
Fp_center 77399094
Fp_center_i 18047106
Fp_div 15033803
Fp_divu 15128280
Fp_double 20766048
Fp_halve 247271
Fp_inv 23436252
Fp_invsafe 1097246
Fp_mul 200994598
Fp_muls 17780
Fp_mulu 68359777
Fp_neg 31476728
Fp_red 82931508
Fp_sqr 64189012
Fp_sub 202683491
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 572199
FqX_Fq_mul 427295
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38567
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 445023
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 367935
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 3106686
Fq_to_FpXQ 73652
GENbinbase 919518960
QV_isscalar 54421354
Q_abs 8061038
Q_abs_shallow 120232
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619948
RgC_gtofp 34038376
RgC_gtomp 574
RgM_dimensions 9954676
RgM_fpnorml2 22655
RgM_gtofp 8258359
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22236189
RgV_gtofp 56
RgV_is_QV 142002
RgV_is_ZV 32095987
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210273
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102485547
RgX_div 6997065
RgX_equal_var 26880193
RgX_fpnorml2 61607
RgX_gtofp 7164057
RgX_is_QX 399944
RgX_is_ZX 22315871
RgX_is_monomial 1320001
RgX_is_rational 68159
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479435
RgX_shift_inplace_init 479435
RgX_to_RgV 140
Rg_col_ei 1451079
Rg_to_Fq 756
ZC_hnfrem 10697645
ZM_ZV_mod 610773
ZM_hnfrem 401357
ZM_lll 7118163
ZV_ZV_mod 8147315
ZV_dvd 23485
ZV_isscalar 23675259
ZV_to_zv 3211716
ZXQ_mul 2166149
ZXQ_sqr 960527
ZX_equal1 10488
ZX_is_monic 7319848
ZX_renormalize 155208242
Z_ispower 98
Z_issquare 509454
abgrp_get_cyc 12231252
abgrp_get_gen 1765037
abgrp_get_no 406729
absfrac 46991367
absfrac_shallow 28237
addmuliu 541563
addmuliu_inplace 59566289
affc_fixlg 249621
affgr 899594
bid_get_MOD 2157251
bid_get_U 3680226
bid_get_arch 41188
bid_get_archp 2397146
bid_get_cyc 5739855
bid_get_fact 2498940
bid_get_fact2 2201575
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804704
bid_get_ideal 72842
bid_get_mod 1521920
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157971
bin_copy 473140345
bit_accuracy 3131934197
bit_accuracy_mul 3175715
bit_prec 143411518
bnf_get_clgp 5375480
bnf_get_cyc 3686613
bnf_get_fu 25857
bnf_get_fu_nocheck 289082
bnf_get_gen 1680325
bnf_get_logfu 2874775
bnf_get_nf 9866349
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367774
bnf_get_tuN 283001
bnf_get_tuU 303582
bnr_get_bid 2046100
bnr_get_bnf 3710953
bnr_get_clgp 2830255
bnr_get_cyc 2522581
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399078
bnr_get_no 277486
both_odd 124151061
cbrtr 0
cbrtr_abs 0
cgetalloc 10136
cgetc 975458
cgiv 105495969
checkell_i 5593788
closure_arity 356264698
closure_codestr 305830085
closure_get_code 28
closure_get_data 305786837
closure_get_dbg 13660
closure_get_frame 14734956
closure_get_oper 305809212
closure_get_text 37150
closure_is_variadic 45931022
col_ei 5925323
coltrunc_init 740257
const_col 9730096
const_vec 34679548
const_vecsmall 18861457
constant_coeff 1441251
cxcompotor 18238397
cxnorm 94094674
cxtofp 9093247
cxtoreal 337206
cyc_get_expo 2757566
cyclic_perm 99932
dbllog2r 94331686
degpol 5514427525
div_content 58513
divsBIL 8235551698
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997564
ell_get_a2 7106320
ell_get_a3 8814533
ell_get_a4 8536861
ell_get_a6 10371099
ell_get_b2 7371375
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11019192
ell_get_c6 13474926
ell_get_disc 16816666
ell_get_j 2126269
ell_get_type 12500082
ell_is_inf 49414338
ellff_get_a4a6 800511
ellff_get_field 2038547
ellinf 1208476
ellnf_get_bnf 119
ellnf_get_nf 2027259
equali1 1169411887
equalim1 139568013
err_get_compo 294
err_get_num 62596
gaddgs 123270533
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80416
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 247008351
gc_INT 4135335716
gc_INT_affii 11587451
gc_all 102552523
gc_leaf 1142403857
gc_slice 2211053
gc_upto 1956946853
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 761917
gdivsg 559710
gen_I 1268873
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928512
get_F2x_mod 2490738
get_F2x_var 2536780
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82103116
get_Flx_mod 25503326
get_Flx_var 68389399
get_FlxqX_degree 317580
get_FlxqX_mod 8033
get_FlxqX_var 264435
get_FpXQX_degree 3589
get_FpXQX_mod 146583
get_FpXQX_var 51630
get_FpX_degree 6969404
get_FpX_mod 3387859
get_FpX_var 6954311
gisdouble 2996623
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 898201
gminsg 0
gmulgs 23894091
gmulgu 283360013
gsubgs 1731950
gtodouble 66248977
gtofp 257222863
gtomp 22428
gtos 85865468
gtou 100691
guncloneNULL 49833141
guncloneNULL_deep 1512058
gval 6230
hash_str 2757660
hash_str_len 31655400
icopy_avma 8051303327
idealchineseinit 5427
idealred 138823
identity_ZV 8120
identity_perm 3243522
identity_zv 3267885
inf_get_sign 1453229
inv_content 0
is_bigint 574412465
is_const_t 5006891120
is_extscalar_t 6876
is_intreal_t 9702852
is_matvec_t 742672930
is_noncalc_t 88499751
is_pm1 2216257544
is_qfb_t 0
is_rational_t 5017774
is_real_t 61899891
is_recursive_t 9103595112
is_scalar_t 403469253
is_universal_constant 326501011
is_vec_t 43947629
isint1 17987194
isintm1 6086557
isintzero 2849304269
ismpzero 9702752
isonstack 8324938792
killblock 1959421
leading_coeff 169337260
leafcopy_avma 595083738
lg_increase 444921216
lgcols 352712176
lgpol 2591008483
lincombii 38280055
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 755008
matpascal 4683
matslice 16826456
mkcol 10653533
mkcol2 156996853
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33586
mkcols 40411
mkcomplex 92005963
mkerr 0
mkfrac 41928582
mkfraccopy 4999690
mkfracss 1209563
mkintmod 8065568
mkintmodu 1834
mkmat 4780010
mkmat2 33666556
mkmat22 50262159
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122300
mkmoo 108905
mkoo 1332077
mkpadic 2009
mkpolmod 3075552
mkqfb 27928947
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69679522
mkvec2 213246008
mkvec2copy 114536
mkvec2s 220726
mkvec3 119500448
mkvec3s 524441
mkvec4 10150204
mkvec4s 21
mkvec5 15187756
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131829838
mkvecsmall2 256221273
mkvecsmall3 103269723
mkvecsmall4 18689861
mkvecsmall5 1718718
modpr_get_T 13867132
modpr_get_p 1887627
modpr_get_pr 31236638
mul_content 2657625
mul_denom 10709840
mulsubii 3894696
nbits2extraprec 1498350231
nbits2ndec 228
nbits2nlong 12720815
nbits2prec 189014215
nbrows 158282135
nchar2nlong 127927649
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304863
nf_get_M 21745774
nf_get_Tr 23281
nf_get_degree 71378576
nf_get_diff 4445
nf_get_disc 463518
nf_get_index 3712052
nf_get_invzk 9774960
nf_get_pol 98123942
nf_get_r1 23466256
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628921
nf_get_roundG 1748552
nf_get_sign 519598
nf_get_varn 1503771
nf_get_zk 4382
nf_get_zkden 5462198
nf_get_zkprimpart 5416395
normalize_frac 17311548
odd 2125400319
pari_calloc 47756
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
pari_err_DIM 718
pari_err_DOMAIN 2876
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 487507012
pari_malloc 723615351
pari_realloc 1880
pari_realloc_ip 2358167
pari_stack_alloc 1006179315
pari_stack_base 1012034028
pari_stack_delete 5890211
pari_stack_init 6375535
pari_stack_new 910878030
pari_stack_pushp 5821
perm_conj 418299
perm_inv 3747564
perm_mul 80957373
perm_sqr 728
pol0_F2x 13228450
pol0_Flx 103190694
pol1_F2x 3951327
pol1_Flx 54916523
pol_0 26065134
pol_1 3752494
pol_x 3860461
pol_xn 2252829
pol_xnall 294
polx_F2x 1078635
polx_Flx 37499514
polx_zx 0
polxn_Flx 371
powIs 596435
powii 43130184
pr_get_e 16167516
pr_get_f 26444937
pr_get_gen 12073000
pr_get_p 92761434
pr_get_tau 49773999
pr_is_inert 17224247
pr_norm 1090574
prec2lg 4565910417
prec2nbits 106955168
prec2nbits_mul 581095
prec2ndec 9778
precdbl 476371
qfb_disc 18502571
qfb_disc3 4995390
qfb_is_qfi 64545271
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8144371139
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 763895
row_i 987
rowcopy 204988
rowpermute 14759791
rowslice 79466442
rowslicepermute 234969
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27898546
sqrfrac 4150972
sqrti 6612882
sqrtnr 2810810
sqrtr 86936067
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60072486
truecoef 0
trunc_safe 0
ulogint 2079741
upr_norm 346136
uutoQ 1602144
vec_append 3469014
vec_ei 1714720
vec_lengthen 18960
vec_prepend 313933
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039448
veclast 9374213
vecmodii 0
vecmoduu 49784
vecpermute 21114664
vecreverse 697305
vecreverse_inplace 2605
vecslice 657366712
vecslicepermute 2860424
vecsmall_append 4114721
vecsmall_coincidence 0
vecsmall_concat 1464652
vecsmall_copy 5369907
vecsmall_ei 585125
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043231
vecsmall_max 1177388
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75753
vecsmall_to_col 7925950
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78761211
vecsmalltrunc_append 100869317
vecsmalltrunc_init 243972106
vecsplice 385009
vectrunc_append 15860590
vectrunc_append_batch 9667
vectrunc_init 11766847
zc_to_ZC 7911402
zero_F2m 0
zero_F2m_copy 845290
zero_F2v 3656687
zero_F2x 1181
zero_Flm 2831171
zero_Flm_copy 238314
zero_Flv 59758472
zero_Flx 1427205
zero_zm 0
zero_zv 37316609
zero_zx 0
zerocol 125168744
zeromat 109005
zeromatcopy 14378988
zeropadic 857738
zeropadic_shallow 17150
zeropol 12867480
zeroser 138992
zerovec 29348272
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 2184146
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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