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: 2026-03-24 09:26:44 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 8358807
F2m_copy 200664
F2m_flip 1554144
F2m_set 798
F2v_clear 12361642
F2v_coeff 664436445
F2v_copy 4487
F2v_ei 42
F2v_flip 1554144
F2v_set 104114843
F2v_to_F2x 37999
F2xX_shift 0
F2x_clear 12361642
F2x_coeff 670941116
F2x_copy 59760376
F2x_div 1571903
F2x_equal 4665625
F2x_equal1 2873768
F2x_flip 1554144
F2x_renormalize 112530603
F2x_set 125970138
F2xqX_div 33173
F3m_coeff 3255549
F3m_copy 0
F3m_set 0
Flm_copy 6434662
Flm_row 8743351
Flv_copy 2555333
Flx_constant 1091360
Flx_copy 173818795
Flx_div 1999807
Flx_div_pre 21708737
Flx_equal1 8195630
Flx_lead 1068407
Flx_mulu 1105449
FlxqX_div 0
FlxqX_div_pre 165415
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4693012
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582039
FpX_renormalize 145862543
Fp_add 181257666
Fp_addmul 11268678
Fp_center 77382998
Fp_center_i 18028654
Fp_div 15035930
Fp_divu 15130378
Fp_double 20925138
Fp_halve 247271
Fp_inv 23436164
Fp_invsafe 1097237
Fp_mul 201095147
Fp_muls 17780
Fp_mulu 71415190
Fp_neg 31474252
Fp_red 82930351
Fp_sqr 64699164
Fp_sub 203053790
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 572193
FqX_Fq_mul 427295
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38569
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 445020
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 367932
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 3106720
Fq_to_FpXQ 73652
GENbinbase 919480165
QV_isscalar 54421601
Q_abs 8061015
Q_abs_shallow 120225
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619942
RgC_gtofp 34031511
RgC_gtomp 574
RgM_dimensions 9954965
RgM_fpnorml2 22655
RgM_gtofp 8257347
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22234589
RgV_gtofp 56
RgV_is_QV 142002
RgV_is_ZV 32095991
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210270
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102485624
RgX_div 6997065
RgX_equal_var 26880198
RgX_fpnorml2 61607
RgX_gtofp 7163961
RgX_is_QX 399943
RgX_is_ZX 22315895
RgX_is_monomial 1320011
RgX_is_rational 68157
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479435
RgX_shift_inplace_init 479435
RgX_to_RgV 140
Rg_col_ei 1451089
Rg_to_Fq 756
ZC_hnfrem 10697653
ZM_ZV_mod 610746
ZM_hnfrem 401378
ZM_lll 7117459
ZV_ZV_mod 8147280
ZV_dvd 23485
ZV_isscalar 23675596
ZV_to_zv 3211715
ZXQ_mul 2166157
ZXQ_sqr 960513
ZX_equal1 10488
ZX_is_monic 7319892
ZX_renormalize 155192537
Z_ispower 98
Z_issquare 509444
abgrp_get_cyc 12231268
abgrp_get_gen 1765024
abgrp_get_no 406725
absfrac 46991411
absfrac_shallow 28237
addmuliu 541518
addmuliu_inplace 59632447
affc_fixlg 249620
affgr 899594
bid_get_MOD 2157258
bid_get_U 3680231
bid_get_arch 41188
bid_get_archp 2397124
bid_get_cyc 5739850
bid_get_fact 2498963
bid_get_fact2 2201577
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804700
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157979
bin_copy 473120107
bit_accuracy 3131682805
bit_accuracy_mul 3175715
bit_prec 143387282
bnf_get_clgp 5375459
bnf_get_cyc 3686602
bnf_get_fu 25859
bnf_get_fu_nocheck 289086
bnf_get_gen 1680311
bnf_get_logfu 2874760
bnf_get_nf 9866334
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367777
bnf_get_tuN 282997
bnf_get_tuU 303582
bnr_get_bid 2046101
bnr_get_bnf 3710953
bnr_get_clgp 2830239
bnr_get_cyc 2522570
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399084
bnr_get_no 277488
both_odd 124066658
cbrtr 0
cbrtr_abs 0
cgetalloc 10136
cgetc 975460
cgiv 105494007
checkell_i 5593773
closure_arity 356381692
closure_codestr 305946223
closure_get_code 28
closure_get_data 305901314
closure_get_dbg 13660
closure_get_frame 14735054
closure_get_oper 305930004
closure_get_text 37150
closure_is_variadic 45931179
col_ei 5925363
coltrunc_init 740257
const_col 9730119
const_vec 34679841
const_vecsmall 18860756
constant_coeff 1441256
cxcompotor 18237687
cxnorm 94095465
cxtofp 9092933
cxtoreal 337207
cyc_get_expo 2757568
cyclic_perm 99932
dbllog2r 94329397
degpol 5533262325
div_content 58510
divsBIL 8234999634
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997572
ell_get_a2 7106315
ell_get_a3 8814540
ell_get_a4 8536856
ell_get_a6 10371094
ell_get_b2 7371387
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11018993
ell_get_c6 13474736
ell_get_disc 16816324
ell_get_j 2126269
ell_get_type 12499971
ell_is_inf 49420017
ellff_get_a4a6 800519
ellff_get_field 2038545
ellinf 1208495
ellnf_get_bnf 119
ellnf_get_nf 2027236
equali1 1169409096
equalim1 139568110
err_get_compo 294
err_get_num 62595
gaddgs 123270567
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80414
gal_get_invvdm 27873
gal_get_mod 23870
gal_get_orders 6706
gal_get_p 6118
gal_get_pol 36427
gal_get_roots 32843
gc_GEN 246943744
gc_INT 4136348085
gc_INT_affii 11588225
gc_all 102550257
gc_leaf 1148213838
gc_slice 2211008
gc_upto 1956800974
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 761928
gdivsg 559710
gen_I 1268874
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928436
get_F2x_mod 2490696
get_F2x_var 2536711
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 83567779
get_Flx_mod 25502299
get_Flx_var 68387675
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 6969378
get_FpX_mod 3387842
get_FpX_var 6954626
gisdouble 2995383
gmax_shallow 13510228
gmaxsg 0
gmin_shallow 898206
gminsg 0
gmulgs 23820064
gmulgu 283360013
gsubgs 1731937
gtodouble 66246811
gtofp 257183109
gtomp 22428
gtos 85865429
gtou 100685
guncloneNULL 49836457
guncloneNULL_deep 1515503
gval 6230
hash_str 2757660
hash_str_len 31655422
icopy_avma 8051224349
idealchineseinit 5427
idealred 138810
identity_ZV 8120
identity_perm 3243230
identity_zv 3267593
inf_get_sign 1453222
inv_content 0
is_bigint 574360359
is_const_t 5007043008
is_extscalar_t 6876
is_intreal_t 9702645
is_matvec_t 742775480
is_noncalc_t 88498801
is_pm1 2217731262
is_qfb_t 0
is_rational_t 5017676
is_real_t 61899890
is_recursive_t 9103094821
is_scalar_t 403469704
is_universal_constant 326484777
is_vec_t 43952473
isint1 17987111
isintm1 6086501
isintzero 2848792184
ismpzero 9702554
isonstack 8331963644
killblock 1961104
leading_coeff 169338625
leafcopy_avma 594843311
lg_increase 437885754
lgcols 352697449
lgpol 2599994787
lincombii 38271330
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 755018
matpascal 4683
matslice 16825787
mkcol 10653422
mkcol2 156977234
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33578
mkcols 40411
mkcomplex 92004555
mkerr 0
mkfrac 41922842
mkfraccopy 4999650
mkfracss 1209563
mkintmod 8065746
mkintmodu 1834
mkmat 4780174
mkmat2 33666028
mkmat22 50258066
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122296
mkmoo 108896
mkoo 1332089
mkpadic 2009
mkpolmod 3075583
mkqfb 27927908
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69671166
mkvec2 211560558
mkvec2copy 114530
mkvec2s 220730
mkvec3 123899816
mkvec3s 524441
mkvec4 10150169
mkvec4s 21
mkvec5 15187647
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131823433
mkvecsmall2 256221207
mkvecsmall3 103271069
mkvecsmall4 18685043
mkvecsmall5 1718754
modpr_get_T 13867134
modpr_get_p 1887627
modpr_get_pr 31236626
mul_content 2657515
mul_denom 10710018
mulsubii 3893584
nbits2extraprec 1498274857
nbits2ndec 228
nbits2nlong 12719683
nbits2prec 188990927
nbrows 158269940
nchar2nlong 127920395
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304775
nf_get_M 21746146
nf_get_Tr 23278
nf_get_degree 71378121
nf_get_diff 4445
nf_get_disc 463514
nf_get_index 3712004
nf_get_invzk 9775035
nf_get_pol 98123275
nf_get_r1 23466626
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628815
nf_get_roundG 1748455
nf_get_sign 519600
nf_get_varn 1503761
nf_get_zk 4382
nf_get_zkden 5462209
nf_get_zkprimpart 5416400
normalize_frac 17311912
odd 2124066260
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 487490168
pari_malloc 723587423
pari_realloc 1880
pari_realloc_ip 2358296
pari_stack_alloc 1006258505
pari_stack_base 1012148085
pari_stack_delete 5900720
pari_stack_init 6376103
pari_stack_new 910971479
pari_stack_pushp 5821
perm_conj 418299
perm_inv 3747488
perm_mul 80956609
perm_sqr 728
pol0_F2x 13229488
pol0_Flx 103180636
pol1_F2x 3950677
pol1_Flx 54914167
pol_0 26065129
pol_1 3752465
pol_x 3860551
pol_xn 2252812
pol_xnall 294
polx_F2x 1079023
polx_Flx 37499095
polx_zx 0
polxn_Flx 371
powIs 596435
powii 43130025
pr_get_e 16167207
pr_get_f 26444226
pr_get_gen 12072540
pr_get_p 92760691
pr_get_tau 49773583
pr_is_inert 17224366
pr_norm 1090497
prec2lg 4565207346
prec2nbits 106951596
prec2nbits_mul 581095
prec2ndec 9778
precdbl 476363
qfb_disc 18502567
qfb_disc3 4994872
qfb_is_qfi 64540303
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8143671303
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 763890
row_i 987
rowcopy 204988
rowpermute 14759263
rowslice 79471409
rowslicepermute 234671
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27898022
sqrfrac 4151044
sqrti 6612837
sqrtnr 2810588
sqrtr 86934541
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60137509
truecoef 0
trunc_safe 0
ulogint 2071718
upr_norm 346135
uutoQ 1602144
vec_append 3468991
vec_ei 1714717
vec_lengthen 18960
vec_prepend 313929
vec_setconst 0
vec_shorten 11555
vec_to_vecsmall 4039446
veclast 9374206
vecmodii 0
vecmoduu 49784
vecpermute 21112644
vecreverse 697305
vecreverse_inplace 2605
vecslice 657545159
vecslicepermute 2859304
vecsmall_append 4114698
vecsmall_coincidence 0
vecsmall_concat 1464626
vecsmall_copy 5369800
vecsmall_ei 585152
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043250
vecsmall_max 1177408
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75752
vecsmall_to_col 7925546
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78760504
vecsmalltrunc_append 100822389
vecsmalltrunc_init 240527224
vecsplice 384995
vectrunc_append 15859600
vectrunc_append_batch 9667
vectrunc_init 11767503
zc_to_ZC 7911001
zero_F2m 0
zero_F2m_copy 845282
zero_F2v 3656655
zero_F2x 1181
zero_Flm 2830871
zero_Flm_copy 238314
zero_Flv 59754502
zero_Flx 1427093
zero_zm 0
zero_zv 37314119
zero_zx 0
zerocol 125152718
zeromat 108966
zeromatcopy 14377347
zeropadic 857630
zeropadic_shallow 17150
zeropol 12867491
zeroser 138992
zerovec 29348310
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 2184078
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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