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 30831-19b50a36d0) Lines: 1421 1535 92.6 %
Date: 2026-04-23 09:26:12 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 6230
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 11556
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 23348
ZV_dvd 23485
gal_get_mod 23870
FqX_neg 24956
FqX_red 25354
bnf_get_fu 25858
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 33314
mkcolcopy 33582
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 38049
FqX_div 38566
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
FqX_degfact 47786
pari_calloc 48043
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58511
RgX_fpnorml2 61608
err_get_num 62596
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 75755
bnr_get_mod 77119
gal_get_group 80415
mkcol3 88314
cyclic_perm 99932
gtou 100706
mkcol4 103467
zv_to_zx 104146
mkmoo 108904
zeromat 108942
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114533
Q_abs_shallow 120237
mkmatcopy 122294
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138811
zeroser 138992
FqX_factor 140960
RgV_is_QV 142001
get_FpXQX_mod 146583
FlxqX_div_pre 165412
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 220741
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234596
zero_Flm_copy 238316
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249624
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 283005
bnf_get_fu_nocheck 289093
bnf_get_tuU 303582
nf_get_G 304743
vec_prepend 313919
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337208
upr_norm 346135
RgX_renormalize 349807
FqX_mul 368262
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384998
RgX_is_QX 399939
ZM_hnfrem 401381
abgrp_get_no 406734
perm_conj 418299
FqX_Fq_mul 427302
FqX_extgcd 445780
nf_get_disc 463581
precdbl 476405
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
Z_issquare 509456
nf_get_sign 519601
mkvec3s 524441
addmuliu 541517
ellff_get_a4a6 551453
gdivsg 561180
zv_to_ZV 569244
FqX_Fp_mul 573020
vecsmall_to_vec 578043
prec2nbits_mul 581096
vecsmall_ei 585181
ZM_ZV_mod 610724
RgC_fpnorml2 619941
powIs 620095
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755015
gcmpgs 761931
row 763905
rnf_get_nf 786086
zero_F2m_copy 845290
FpXX_renormalize 849322
zeropadic 857016
affgr 899608
gmin_shallow 899717
ellinf 913943
ZXQ_sqr 960525
cgetc 975461
Flx_lead 1069474
polx_F2x 1079735
pr_norm 1090485
Flx_constant 1091716
Fp_invsafe 1097243
sstoQ 1097313
Flx_mulu 1105478
vecsmall_max 1177500
mkfracss 1209563
RgV_isscalar 1210269
gen_I 1268875
RgX_is_monomial 1326861
mkoo 1332150
bnf_get_sunits 1367775
rnf_get_absdegree 1392746
bnr_get_nf 1399076
constant_coeff 1442660
Rg_col_ei 1451134
inf_get_sign 1453278
vecsmall_concat 1464671
guncloneNULL_deep 1496123
nf_get_varn 1503753
bid_get_mod 1521920
F2m_flip 1554521
F2v_flip 1554521
F2x_flip 1554521
F2x_div 1572930
uutoQ 1602144
nf_get_roots 1628802
bnf_get_gen 1680317
zv_copy 1687800
vec_ei 1714755
mkvecsmall5 1718754
gsubgs 1731929
nf_get_roundG 1748428
abgrp_get_gen 1765030
ellff_get_field 1790582
modpr_get_p 1887627
get_F2x_degree 1928470
killblock 1950620
Flx_div 1999769
ellnf_get_nf 2027247
bnr_get_bid 2046081
Flv_copy 2059068
ulogint 2100218
ell_get_j 2126269
bid_get_MOD 2157254
bid_get_sprk 2157982
ZXQ_mul 2166125
get_F2x_var 2168574
bid_get_fact2 2201572
gc_slice 2211650
pol_xn 2253483
pari_realloc_ip 2343684
bid_get_archp 2397105
bid_get_fact 2498929
rnf_get_degree 2506335
bnr_get_cyc 2522565
ell_get_b4 2550293
mul_content 2657241
cyc_get_expo 2757545
hash_str 2779150
sqrtnr 2810623
bnr_get_clgp 2830247
zero_Flm 2830838
rnf_get_pol 2845192
vecslicepermute 2859159
znstar_get_pe 2869063
F2x_equal1 2873578
bnf_get_logfu 2874766
RgX_coeff 2889731
gisdouble 2995447
mkpolmod 3075551
Fq_red 3106528
bit_accuracy_mul 3175715
ZV_to_zv 3211713
identity_perm 3243220
F3m_coeff 3255551
zero_Flx 3255832
identity_zv 3267583
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307562
get_FpX_mod 3387844
vec_append 3469017
zero_F2v 3656660
bid_get_U 3680231
bnf_get_cyc 3686605
bnr_get_bnf 3710940
nf_get_index 3712009
perm_inv 3747420
pol_1 3752516
ell_get_b6 3863192
pol_x 3865077
mulsubii 3893162
vec_to_vecsmall 4040775
vecsmall_append 4114739
F2x_equal 4196793
sqrfrac 4201776
mkcol2s 4416244
FpXQX_renormalize 4692296
pol1_F2x 4767528
mkmat 4780908
qfb_disc3 4995084
mkfraccopy 5007079
is_rational_t 5017791
bnf_get_clgp 5375467
nf_get_zkprimpart 5416316
nf_get_zkden 5462146
FpX_div 5582132
bid_get_cyc 5739803
bid_get_grp 5804659
pari_stack_delete 5833546
col_ei 5925230
isintm1 6086938
pari_stack_init 6331484
Flm_copy 6434452
sqrti 6612696
get_FpX_var 6952474
get_FpX_degree 6969247
RgX_div 6998185
vecsmall_lexcmp 7043259
ZM_lll 7136283
RgX_gtofp 7164835
ZX_is_monic 7319842
znstar_get_faN 7334819
vecsmall_copy 7341076
ell_get_b2 7371403
zc_to_ZC 7910997
vecsmall_to_col 7925542
znstar_get_conreycyc 7982108
mkintmod 8066764
Q_abs 8078487
checkell_i 8103894
ZV_ZV_mod 8147137
Flx_equal1 8195791
RgM_gtofp 8257789
F2m_coeff 8363776
Flm_row 8743384
cxtofp 9094453
veclast 9374216
ismpzero 9712733
is_intreal_t 9712833
const_col 9730144
nf_get_invzk 9774658
bnf_get_nf 9866320
RgM_dimensions 9955104
mkvec4 10150146
ell_get_a4 10325134
ell_get_a6 10371094
mkcol 10654048
ZC_hnfrem 10697297
mul_denom 10753311
ell_get_c4 11018674
ell_get_a2 11108716
Fp_addmul 11291569
ser_isexactzero 11434254
gc_INT_affii 11586764
vectrunc_init 11768584
pr_get_gen 12072273
abgrp_get_cyc 12231208
F2x_clear 12362240
F2v_clear 12362247
nbits2nlong 12746416
ell_get_a3 12863752
zeropol 12889623
ell_get_c6 13474402
gmax_shallow 13510228
modpr_get_T 13867128
zeromatcopy 14378590
closure_get_frame 14677947
rowpermute 14758847
ell_get_type 14945735
Fp_div 15035543
Fp_divu 15129957
mkvec5 15187670
vectrunc_append 15856054
pr_get_e 16166965
ell_get_disc 16815555
matslice 16824710
ell_get_a1 17049185
pr_is_inert 17223868
pol0_F2x 17360249
normalize_frac 17569337
isint1 17994647
Fp_center_i 18040824
cxcompotor 18240552
qfb_disc 18502463
mkvecsmall4 18655883
const_vecsmall 18860628
Fp_double 20959489
vecpermute 21112619
Flx_div_pre 21703556
nf_get_M 21741077
RgM_shallowcopy 22226208
RgX_is_ZX 22316566
Fp_inv 23412975
nf_get_r1 23465924
ZV_isscalar 23674829
gmulgs 23830399
get_Flx_mod 25495440
pr_get_f 26443791
RgX_equal_var 26880498
pol_0 27168736
shallowcopy 27896590
mkqfb 27928252
zerovec 29348380
modpr_get_pr 31236622
hash_str_len 31617882
submulii 31985063
RgV_is_ZV 32096667
Fp_neg 32666570
mkmat2 33655633
RgC_gtofp 34033795
const_vec 34627114
polx_Flx 37496642
lincombii 38259386
znstar_get_N 38658713
zero_zv 39509796
mkfrac 42555385
powii 43129967
is_vec_t 44026989
closure_is_variadic 45927309
absfrac 47729736
pr_get_tau 49772419
guncloneNULL 49813129
ell_is_inf 50200973
mkmat22 50261715
QV_isscalar 54418391
pol1_Flx 55716716
addmuliu_inplace 59628854
submuliu_inplace 60138642
is_real_t 61900625
zero_Flv 61986747
qfb_is_qfi 64542714
Fp_sqr 64554162
F2x_copy 64646730
Fp_mulu 65511805
gtodouble 66252692
get_Flx_var 68236904
mkvec 68973735
nf_get_degree 71374301
Fp_center 77294816
vecsmallpermute 78756628
rowslice 79456692
perm_mul 80953070
get_Flx_degree 82137197
Fp_red 82934140
gtos 85866160
sqrtr 87176848
is_noncalc_t 88515269
mkcomplex 92027106
pr_get_p 92759934
cxnorm 94251211
dbllog2r 94340127
nf_get_pol 98115938
vecsmalltrunc_append 100785946
gc_all 102447630
RgX_copy 102503763
mkvecsmall3 103252465
F2v_set 104116325
cgiv 105489430
prec2nbits 106957636
vecsmall_prefixcmp 108088071
pol0_Flx 111639732
mkvec3 119623742
gaddgs 123271983
both_odd 123281202
zerocol 125182769
F2x_renormalize 127788994
nchar2nlong 127832710
F2x_set 129925163
equalim1 139546848
mkvecsmall 140333533
bit_prec 143390596
FpX_renormalize 147168130
mkcol2 157049026
ZX_renormalize 157578083
nbrows 158334011
leading_coeff 169345673
Flx_copy 175780896
Fp_add 183589417
nbits2prec 188998600
Fp_sub 202189090
Fp_mul 203733044
mkvec2 216036069
vecsmalltrunc_init 245394514
gc_GEN 247029461
mkvecsmall2 256935609
gtofp 257205883
gmulgu 283360013
closure_get_data 306066880
closure_get_oper 306096597
closure_codestr 306124998
is_universal_constant 326423967
lgcols 352753923
closure_arity 356525623
is_scalar_t 403951521
lg_increase 447296239
bin_copy 472935674
pari_free 487274915
is_bigint 574387470
leafcopy_avma 593785015
vecslice 657366117
F2v_coeff 664445541
F2x_coeff 670943349
pari_malloc 723395224
is_matvec_t 743872441
pari_stack_new 910436348
GENbinbase 919101040
pari_stack_alloc 1005752942
pari_stack_base 1011587091
gc_leaf 1160579998
equali1 1171411566
nbits2extraprec 1497642714
gc_upto 1972652920
odd 2125078549
is_pm1 2217614448
lgpol 2620834810
isintzero 2849023971
bit_accuracy 3145902192
gc_INT 4138823568
prec2lg 4567417931
is_const_t 5003013555
degpol 5506292919
icopy_avma 8056307196
remsBIL 8149755431
divsBIL 8240580481
isonstack 8362001682
is_recursive_t 9111025169

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