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 30848-b1463d63da) Lines: 1421 1535 92.6 %
Date: 2026-04-30 09:27:33 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 1887
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 5842
FqX_get_red 6090
gal_get_p 6118
gval 6237
FqXn_expint 6590
gal_get_orders 6706
is_extscalar_t 6904
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 10157
ZX_equal1 10488
gchar_get_Ui 10983
vec_shorten 11557
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
FqXQ_mul 22766
RgM_fpnorml2 22788
nf_get_Tr 23351
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 27874
absfrac_shallow 28237
gequalgs 29176
zerovec_block 29654
gener_Fq_local 29946
gchar_get_basis 32816
gal_get_roots 32844
F2xqX_div 33173
ndec2prec 33356
mkcolcopy 33583
Qtoss 35364
gal_get_pol 36428
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37150
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 38029
FqX_div 38567
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41626
znstar_get_Ui 46788
FqX_degfact 47786
pari_calloc 48120
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58511
err_get_num 62596
RgX_fpnorml2 63070
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68290
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 77117
gal_get_group 80415
mkcol3 88314
cyclic_perm 99932
gtou 100704
mkcol4 103467
zv_to_zx 104146
mkmoo 108906
zeromat 108947
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114540
Q_abs_shallow 120245
mkmatcopy 122305
mkveccopy 122528
FqX_add 127694
RgXQX_rem 127915
rnf_get_map 135659
zeroser 139013
idealred 139133
FqX_factor 140960
RgV_is_QV 142001
get_FpXQX_mod 146583
FlxqX_div_pre 165417
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200662
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220748
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234741
zero_Flm_copy 238316
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249619
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264435
bnr_get_no 277483
gchar_get_zm 281911
bnf_get_tuN 282985
bnf_get_fu_nocheck 289081
bnf_get_tuU 303567
nf_get_G 304782
vec_prepend 313928
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337203
upr_norm 346135
RgX_renormalize 349807
FqX_mul 368762
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385011
RgX_is_QX 400069
ZM_hnfrem 401366
abgrp_get_no 406720
perm_conj 418299
FqX_Fq_mul 427298
FqX_extgcd 447451
nf_get_disc 464182
precdbl 476402
RgX_shift_inplace 479481
RgX_shift_inplace_init 479481
Z_issquare 509444
nf_get_sign 519602
mkvec3s 524441
addmuliu 541599
ellff_get_a4a6 551466
gdivsg 561179
zv_to_ZV 569244
FqX_Fp_mul 576295
vecsmall_to_vec 578043
prec2nbits_mul 581097
vecsmall_ei 585085
ZM_ZV_mod 610703
RgC_fpnorml2 619939
powIs 620095
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755023
gcmpgs 761940
row 763897
rnf_get_nf 786086
zero_F2m_copy 845296
FpXX_renormalize 849322
zeropadic 857525
affgr 899650
gmin_shallow 901218
ellinf 913927
ZXQ_sqr 961462
cgetc 975442
Flx_lead 1068806
polx_F2x 1079571
pr_norm 1090497
Flx_constant 1091547
Fp_invsafe 1097242
sstoQ 1097313
Flx_mulu 1105475
vecsmall_max 1177699
mkfracss 1209563
RgV_isscalar 1210270
gen_I 1268873
RgX_is_monomial 1328161
mkoo 1332035
bnf_get_sunits 1367774
rnf_get_absdegree 1392746
bnr_get_nf 1399076
constant_coeff 1445632
Rg_col_ei 1451080
inf_get_sign 1453160
vecsmall_concat 1464652
nf_get_varn 1503818
guncloneNULL_deep 1505614
bid_get_mod 1521922
F2m_flip 1554550
F2v_flip 1554550
F2x_flip 1554550
F2x_div 1572360
uutoQ 1602144
nf_get_roots 1629052
bnf_get_gen 1680326
zv_copy 1687807
vec_ei 1714747
mkvecsmall5 1718728
gsubgs 1731072
nf_get_roundG 1748780
abgrp_get_gen 1765040
ellff_get_field 1790616
modpr_get_p 1887626
get_F2x_degree 1928600
killblock 1956781
Flx_div 1999800
ellnf_get_nf 2027235
bnr_get_bid 2046090
Flv_copy 2059072
ulogint 2094877
ell_get_j 2126269
bid_get_MOD 2157233
bid_get_sprk 2157962
ZXQ_mul 2166469
get_F2x_var 2168750
bid_get_fact2 2201556
gc_slice 2211555
pol_xn 2254008
pari_realloc_ip 2348785
bid_get_archp 2397078
bid_get_fact 2498916
rnf_get_degree 2506335
bnr_get_cyc 2522503
ell_get_b4 2550293
mul_content 2657680
cyc_get_expo 2757527
hash_str 2781061
sqrtnr 2810667
bnr_get_clgp 2830241
zero_Flm 2831161
rnf_get_pol 2845192
vecslicepermute 2860056
znstar_get_pe 2869063
F2x_equal1 2873726
bnf_get_logfu 2874755
RgX_coeff 2889731
gisdouble 2995887
Fq_red 3106033
bit_accuracy_mul 3175733
ZV_to_zv 3211715
identity_perm 3243374
F3m_coeff 3255549
zero_Flx 3255724
mkpolmod 3262564
identity_zv 3267736
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307660
get_FpX_mod 3387865
vec_append 3468997
zero_F2v 3656705
bid_get_U 3680212
bnf_get_cyc 3686617
bnr_get_bnf 3710937
nf_get_index 3713847
perm_inv 3747448
pol_1 3753750
ell_get_b6 3863192
pol_x 3865294
mulsubii 3892807
vec_to_vecsmall 4041760
vecsmall_append 4114755
F2x_equal 4192719
sqrfrac 4206037
mkcol2s 4416244
FpXQX_renormalize 4692135
pol1_F2x 4768807
mkmat 4781486
qfb_disc3 4995193
mkfraccopy 5009075
is_rational_t 5019910
bnf_get_clgp 5375489
nf_get_zkprimpart 5416496
nf_get_zkden 5462249
FpX_div 5582162
bid_get_cyc 5739782
bid_get_grp 5804632
pari_stack_delete 5871911
col_ei 5925545
isintm1 6087099
pari_stack_init 6348243
Flm_copy 6434518
sqrti 6613268
get_FpX_var 6952224
get_FpX_degree 6969346
RgX_div 6998920
vecsmall_lexcmp 7043259
ZM_lll 7136515
RgX_gtofp 7166279
znstar_get_faN 7334819
vecsmall_copy 7341146
ell_get_b2 7371405
ZX_is_monic 7670801
zc_to_ZC 7911313
vecsmall_to_col 7925858
znstar_get_conreycyc 7982108
mkintmod 8066829
checkell_i 8103967
Q_abs 8125684
ZV_ZV_mod 8147154
Flx_equal1 8200663
RgM_gtofp 8257959
F2m_coeff 8359605
Flm_row 8743641
cxtofp 9095368
veclast 9374240
ismpzero 9712788
is_intreal_t 9712898
const_col 9730067
nf_get_invzk 9775419
bnf_get_nf 9866302
RgM_dimensions 9954886
mkvec4 10156614
ell_get_a4 10325143
ell_get_a6 10371103
mkcol 10656523
ZC_hnfrem 10697384
mul_denom 10753406
ell_get_c4 11018744
ell_get_a2 11108725
Fp_addmul 11273005
ser_isexactzero 11434317
gc_INT_affii 11586022
vectrunc_init 11769728
pr_get_gen 12072373
abgrp_get_cyc 12231234
F2v_clear 12362306
F2x_clear 12362310
nbits2nlong 12771283
ell_get_a3 12863764
zeropol 12924008
ell_get_c6 13474418
gmax_shallow 13510227
modpr_get_T 13867036
zeromatcopy 14379519
closure_get_frame 14692093
rowpermute 14759884
ell_get_type 14946019
Fp_div 15033323
Fp_divu 15127821
mkvec5 15187627
vectrunc_append 15856814
pr_get_e 16167437
ell_get_disc 16816018
matslice 16824235
ell_get_a1 17049196
pr_is_inert 17224313
pol0_F2x 17358935
normalize_frac 17573604
isint1 17996476
Fp_center_i 18038256
cxcompotor 18242646
qfb_disc 18502502
mkvecsmall4 18644762
const_vecsmall 18861248
Fp_double 20828956
vecpermute 21115220
Flx_div_pre 21723193
nf_get_M 21741440
RgM_shallowcopy 22228328
RgX_is_ZX 22392116
Fp_inv 23415669
nf_get_r1 23466436
ZV_isscalar 23675599
gmulgs 23886577
get_Flx_mod 25516163
pr_get_f 26444401
RgX_equal_var 27139610
pol_0 27228240
shallowcopy 27896769
mkqfb 27928502
zerovec 29348376
modpr_get_pr 31236475
hash_str_len 31620371
submulii 31985143
RgV_is_ZV 32097192
Fp_neg 32670898
mkmat2 33655749
RgC_gtofp 34035263
const_vec 34647305
polx_Flx 37516564
lincombii 38268031
znstar_get_N 38658713
zero_zv 39512297
mkfrac 42737444
powii 43129965
is_vec_t 44031074
closure_is_variadic 45952754
absfrac 47978636
pr_get_tau 49773796
guncloneNULL 49833376
ell_is_inf 50163445
mkmat22 50271310
QV_isscalar 54419080
pol1_Flx 55772390
addmuliu_inplace 59564394
submuliu_inplace 60072363
is_real_t 61900640
zero_Flv 61991746
Fp_sqr 63939691
qfb_is_qfi 64525862
F2x_copy 64606169
gtodouble 66254564
get_Flx_var 68295965
Fp_mulu 68444281
mkvec 68958881
nf_get_degree 71377875
Fp_center 77268811
vecsmallpermute 78756662
rowslice 79445511
perm_mul 80953106
Fp_red 82925213
get_Flx_degree 83660957
gtos 85878474
sqrtr 87178702
is_noncalc_t 88518713
mkcomplex 92035411
pr_get_p 92761155
cxnorm 94251511
dbllog2r 94343716
nf_get_pol 98129109
vecsmalltrunc_append 100845348
gc_all 102463675
RgX_copy 102877057
mkvecsmall3 103276392
F2v_set 104115804
cgiv 105505265
prec2nbits 106956697
vecsmall_prefixcmp 108088071
pol0_Flx 111733306
gaddgs 123271091
both_odd 123412995
mkvec3 124106476
zerocol 125192703
F2x_renormalize 127802733
nchar2nlong 127853956
F2x_set 129964937
equalim1 139547094
mkvecsmall 140447375
bit_prec 143408545
FpX_renormalize 147294016
mkcol2 157058427
ZX_renormalize 157638338
nbrows 158347748
leading_coeff 169744198
Flx_copy 175986176
Fp_add 183438045
nbits2prec 189020788
Fp_sub 201560770
Fp_mul 203839179
mkvec2 215021928
vecsmalltrunc_init 243298196
gc_GEN 247172539
mkvecsmall2 257011281
gtofp 257208586
gmulgu 283360012
closure_get_data 306086692
closure_get_oper 306107279
closure_codestr 306126488
is_universal_constant 326479992
lgcols 352758811
closure_arity 356573107
is_scalar_t 404086796
lg_increase 444251824
bin_copy 473122674
pari_free 487476676
is_bigint 574433054
leafcopy_avma 593552931
vecslice 657303033
F2v_coeff 664442291
F2x_coeff 671022139
pari_malloc 723603573
is_matvec_t 744206163
pari_stack_new 910594041
GENbinbase 919482982
pari_stack_alloc 1005958500
pari_stack_base 1011809762
gc_leaf 1167211272
equali1 1172075441
nbits2extraprec 1497782358
gc_upto 1973362129
odd 2124600713
is_pm1 2219603406
lgpol 2632610031
isintzero 2849377377
bit_accuracy 3146457021
gc_INT 4139031894
prec2lg 4563014824
is_const_t 5004005879
degpol 5532224215
icopy_avma 8057432191
remsBIL 8151553870
divsBIL 8242790460
isonstack 8369109884
is_recursive_t 9115931659

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