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
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
pari_err_BUG 14
znstar_get_no 14
RgM_gtomp 21
mkvec4s 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
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_get_sfu 1743
gchar_set_evalprec 1813
mkintmodu 1834
gchar_get_nm 1869
pari_realloc 1880
RgXQX_div 1904
mkpadic 2009
gchar_get_nalg 2044
gchar_set_nf 2110
gchar_set_u0 2121
vecreverse_inplace 2605
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2876
gchar_set_nfprec 2968
vecsmall_reverse 3052
vecsmall_to_vec_inplace 3304
gchar_get_m0 3318
pari_err_TYPE2 3493
get_FpXQX_degree 3589
vecsmall_min 3710
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
matpascal 4683
rnf_get_zk 4830
rnf_get_nfvarn 4886
idealchineseinit 5427
pari_stack_pushp 5821
FqX_get_red 6090
gal_get_p 6118
gval 6230
FqXn_expint 6590
gal_get_orders 6706
is_extscalar_t 6876
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 10136
ZX_equal1 10488
gchar_get_Ui 10983
vec_shorten 11555
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 17150
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 22655
FqXQ_mul 22766
nf_get_Tr 23278
ZV_dvd 23485
gal_get_mod 23870
FqX_neg 24956
FqX_red 25354
bnf_get_fu 25859
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 33578
Qtoss 35364
gal_get_pol 36427
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37150
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 37999
FqX_div 38569
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47756
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58510
RgX_fpnorml2 61607
err_get_num 62595
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68157
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 75752
bnr_get_mod 77119
gal_get_group 80414
mkcol3 88314
cyclic_perm 99932
gtou 100685
mkcol4 103467
zv_to_zx 104146
mkmoo 108896
zeromat 108966
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114530
Q_abs_shallow 120225
mkmatcopy 122296
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138810
zeroser 138992
FqX_factor 140960
RgV_is_QV 142002
get_FpXQX_mod 146583
FlxqX_div_pre 165415
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200664
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220730
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234671
zero_Flm_copy 238314
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249620
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264435
bnr_get_no 277488
gchar_get_zm 281911
bnf_get_tuN 282997
bnf_get_fu_nocheck 289086
bnf_get_tuU 303582
nf_get_G 304775
vec_prepend 313929
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337207
upr_norm 346135
RgX_renormalize 349807
FqX_mul 367932
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384995
RgX_is_QX 399943
ZM_hnfrem 401378
abgrp_get_no 406725
perm_conj 418299
FqX_Fq_mul 427295
FqX_extgcd 445020
nf_get_disc 463514
precdbl 476363
RgX_shift_inplace 479435
RgX_shift_inplace_init 479435
Z_issquare 509444
nf_get_sign 519600
mkvec3s 524441
addmuliu 541518
gdivsg 559710
zv_to_ZV 569244
FqX_Fp_mul 572193
vecsmall_to_vec 578043
prec2nbits_mul 581095
vecsmall_ei 585152
powIs 596435
ZM_ZV_mod 610746
RgC_fpnorml2 619942
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755018
gcmpgs 761928
row 763890
rnf_get_nf 786086
ellff_get_a4a6 800519
zero_F2m_copy 845282
FpXX_renormalize 849322
zeropadic 857630
gmin_shallow 898206
affgr 899594
ZXQ_sqr 960513
cgetc 975460
Flx_lead 1068407
polx_F2x 1079023
pr_norm 1090497
Flx_constant 1091360
Fp_invsafe 1097237
sstoQ 1097313
Flx_mulu 1105449
vecsmall_max 1177408
ellinf 1208495
mkfracss 1209563
RgV_isscalar 1210270
gen_I 1268874
RgX_is_monomial 1320011
mkoo 1332089
bnf_get_sunits 1367777
rnf_get_absdegree 1392746
bnr_get_nf 1399084
zero_Flx 1427093
constant_coeff 1441256
Rg_col_ei 1451089
inf_get_sign 1453222
vecsmall_concat 1464626
nf_get_varn 1503761
guncloneNULL_deep 1515503
bid_get_mod 1521922
F2m_flip 1554144
F2v_flip 1554144
F2x_flip 1554144
F2x_div 1571903
uutoQ 1602144
nf_get_roots 1628815
bnf_get_gen 1680311
vec_ei 1714717
mkvecsmall5 1718754
gsubgs 1731937
nf_get_roundG 1748455
abgrp_get_gen 1765024
modpr_get_p 1887627
get_F2x_degree 1928436
killblock 1961104
Flx_div 1999807
ellnf_get_nf 2027236
ellff_get_field 2038545
bnr_get_bid 2046101
ulogint 2071718
ell_get_j 2126269
bid_get_MOD 2157258
bid_get_sprk 2157979
ZXQ_mul 2166157
zv_copy 2184078
bid_get_fact2 2201577
gc_slice 2211008
pol_xn 2252812
pari_realloc_ip 2358296
bid_get_archp 2397124
get_F2x_mod 2490696
bid_get_fact 2498963
rnf_get_degree 2506335
bnr_get_cyc 2522570
get_F2x_var 2536711
ell_get_b4 2550293
Flv_copy 2555333
mul_content 2657515
cyc_get_expo 2757568
hash_str 2757660
sqrtnr 2810588
bnr_get_clgp 2830239
zero_Flm 2830871
rnf_get_pol 2845192
vecslicepermute 2859304
znstar_get_pe 2869063
F2x_equal1 2873768
bnf_get_logfu 2874760
RgX_coeff 2889731
gisdouble 2995383
mkpolmod 3075583
Fq_red 3106720
bit_accuracy_mul 3175715
ZV_to_zv 3211715
identity_perm 3243230
F3m_coeff 3255549
identity_zv 3267593
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3387842
vec_append 3468991
zero_F2v 3656655
bid_get_U 3680231
bnf_get_cyc 3686602
bnr_get_bnf 3710953
nf_get_index 3712004
perm_inv 3747488
pol_1 3752465
pol_x 3860551
ell_get_b6 3863192
mulsubii 3893584
pol1_F2x 3950677
vec_to_vecsmall 4039446
vecsmall_append 4114698
sqrfrac 4151044
mkcol2s 4416244
F2x_equal 4665625
FpXQX_renormalize 4693012
mkmat 4780174
qfb_disc3 4994872
mkfraccopy 4999650
is_rational_t 5017676
vecsmall_copy 5369800
bnf_get_clgp 5375459
nf_get_zkprimpart 5416400
nf_get_zkden 5462209
FpX_div 5582039
checkell_i 5593773
bid_get_cyc 5739850
bid_get_grp 5804700
pari_stack_delete 5900720
col_ei 5925363
isintm1 6086501
pari_stack_init 6376103
Flm_copy 6434662
sqrti 6612837
get_FpX_var 6954626
get_FpX_degree 6969378
RgX_div 6997065
vecsmall_lexcmp 7043250
ell_get_a2 7106315
ZM_lll 7117459
RgX_gtofp 7163961
ZX_is_monic 7319892
znstar_get_faN 7334819
ell_get_b2 7371387
zc_to_ZC 7911001
vecsmall_to_col 7925546
znstar_get_conreycyc 7982108
Q_abs 8061015
mkintmod 8065746
ZV_ZV_mod 8147280
Flx_equal1 8195630
RgM_gtofp 8257347
F2m_coeff 8358807
ell_get_a4 8536856
Flm_row 8743351
ell_get_a3 8814540
ell_get_a1 8997572
cxtofp 9092933
veclast 9374206
ismpzero 9702554
is_intreal_t 9702645
const_col 9730119
nf_get_invzk 9775035
bnf_get_nf 9866334
RgM_dimensions 9954965
mkvec4 10150169
ell_get_a6 10371094
mkcol 10653422
ZC_hnfrem 10697653
mul_denom 10710018
ell_get_c4 11018993
Fp_addmul 11268678
ser_isexactzero 11434254
gc_INT_affii 11588225
vectrunc_init 11767503
pr_get_gen 12072540
abgrp_get_cyc 12231268
F2v_clear 12361642
F2x_clear 12361642
ell_get_type 12499971
nbits2nlong 12719683
zeropol 12867491
pol0_F2x 13229488
ell_get_c6 13474736
gmax_shallow 13510228
modpr_get_T 13867134
zeromatcopy 14377347
closure_get_frame 14735054
rowpermute 14759263
Fp_div 15035930
Fp_divu 15130378
mkvec5 15187647
vectrunc_append 15859600
pr_get_e 16167207
ell_get_disc 16816324
matslice 16825787
pr_is_inert 17224366
normalize_frac 17311912
isint1 17987111
Fp_center_i 18028654
cxcompotor 18237687
qfb_disc 18502567
mkvecsmall4 18685043
const_vecsmall 18860756
Fp_double 20925138
vecpermute 21112644
Flx_div_pre 21708737
nf_get_M 21746146
RgM_shallowcopy 22234589
RgX_is_ZX 22315895
Fp_inv 23436164
nf_get_r1 23466626
ZV_isscalar 23675596
gmulgs 23820064
get_Flx_mod 25502299
pol_0 26065129
pr_get_f 26444226
RgX_equal_var 26880198
shallowcopy 27898022
mkqfb 27927908
zerovec 29348310
modpr_get_pr 31236626
Fp_neg 31474252
hash_str_len 31655422
submulii 31985063
RgV_is_ZV 32095991
mkmat2 33666028
RgC_gtofp 34031511
const_vec 34679841
zero_zv 37314119
polx_Flx 37499095
lincombii 38271330
znstar_get_N 38658713
mkfrac 41922842
powii 43130025
is_vec_t 43952473
closure_is_variadic 45931179
absfrac 46991411
ell_is_inf 49420017
pr_get_tau 49773583
guncloneNULL 49836457
mkmat22 50258066
QV_isscalar 54421601
pol1_Flx 54914167
addmuliu_inplace 59632447
zero_Flv 59754502
F2x_copy 59760376
submuliu_inplace 60137509
is_real_t 61899890
qfb_is_qfi 64540303
Fp_sqr 64699164
gtodouble 66246811
get_Flx_var 68387675
mkvec 69671166
nf_get_degree 71378121
Fp_mulu 71415190
Fp_center 77382998
vecsmallpermute 78760504
rowslice 79471409
perm_mul 80956609
Fp_red 82930351
get_Flx_degree 83567779
gtos 85865429
sqrtr 86934541
is_noncalc_t 88498801
mkcomplex 92004555
pr_get_p 92760691
cxnorm 94095465
dbllog2r 94329397
nf_get_pol 98123275
vecsmalltrunc_append 100822389
RgX_copy 102485624
gc_all 102550257
pol0_Flx 103180636
mkvecsmall3 103271069
F2v_set 104114843
cgiv 105494007
prec2nbits 106951596
vecsmall_prefixcmp 108088071
F2x_renormalize 112530603
gaddgs 123270567
mkvec3 123899816
both_odd 124066658
zerocol 125152718
F2x_set 125970138
nchar2nlong 127920395
mkvecsmall 131823433
equalim1 139568110
bit_prec 143387282
FpX_renormalize 145862543
ZX_renormalize 155192537
mkcol2 156977234
nbrows 158269940
leading_coeff 169338625
Flx_copy 173818795
Fp_add 181257666
nbits2prec 188990927
Fp_mul 201095147
Fp_sub 203053790
mkvec2 211560558
vecsmalltrunc_init 240527224
gc_GEN 246943744
mkvecsmall2 256221207
gtofp 257183109
gmulgu 283360013
closure_get_data 305901314
closure_get_oper 305930004
closure_codestr 305946223
is_universal_constant 326484777
lgcols 352697449
closure_arity 356381692
is_scalar_t 403469704
lg_increase 437885754
bin_copy 473120107
pari_free 487490168
is_bigint 574360359
leafcopy_avma 594843311
vecslice 657545159
F2v_coeff 664436445
F2x_coeff 670941116
pari_malloc 723587423
is_matvec_t 742775480
pari_stack_new 910971479
GENbinbase 919480165
pari_stack_alloc 1006258505
pari_stack_base 1012148085
gc_leaf 1148213838
equali1 1169409096
nbits2extraprec 1498274857
gc_upto 1956800974
odd 2124066260
is_pm1 2217731262
lgpol 2599994787
isintzero 2848792184
bit_accuracy 3131682805
gc_INT 4136348085
prec2lg 4565207346
is_const_t 5007043008
degpol 5533262325
icopy_avma 8051224349
remsBIL 8143671303
divsBIL 8234999634
isonstack 8331963644
is_recursive_t 9103094821

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