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 30775-9d8a55740a) Lines: 1421 1535 92.6 %
Date: 2026-04-05 09:26:48 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 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 10136
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
RgM_fpnorml2 22655
FqXQ_mul 22766
nf_get_Tr 23272
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 33580
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 38152
FqX_div 38569
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47700
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58512
RgX_fpnorml2 61608
err_get_num 62595
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68159
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 100708
mkcol4 103467
zv_to_zx 104146
mkmoo 108903
zeromat 108966
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114534
Q_abs_shallow 120244
mkmatcopy 122299
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138821
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 200668
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220729
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234676
zero_Flm_copy 238308
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249622
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 282991
bnf_get_fu_nocheck 289083
bnf_get_tuU 303571
nf_get_G 304784
vec_prepend 313919
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337206
upr_norm 346134
RgX_renormalize 349807
FqX_mul 367936
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384999
RgX_is_QX 399940
ZM_hnfrem 401397
abgrp_get_no 406722
perm_conj 418299
FqX_Fq_mul 427281
FqX_extgcd 445022
nf_get_disc 463516
precdbl 476360
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
Z_issquare 509439
nf_get_sign 519601
mkvec3s 524441
addmuliu 541644
ellff_get_a4a6 551465
gdivsg 559710
zv_to_ZV 569244
FqX_Fp_mul 572191
vecsmall_to_vec 578043
prec2nbits_mul 581097
vecsmall_ei 585108
powIs 596435
ZM_ZV_mod 610685
RgC_fpnorml2 619945
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755019
gcmpgs 761921
row 763904
rnf_get_nf 786086
zero_F2m_copy 845294
FpXX_renormalize 849322
zeropadic 857676
gmin_shallow 898165
affgr 899594
ellinf 913934
ZXQ_sqr 960614
cgetc 975459
Flx_lead 1067987
polx_F2x 1079763
pr_norm 1090423
Flx_constant 1091708
Fp_invsafe 1097238
sstoQ 1097313
Flx_mulu 1105485
vecsmall_max 1177270
mkfracss 1209562
RgV_isscalar 1210270
gen_I 1268853
RgX_is_monomial 1320038
mkoo 1332071
bnf_get_sunits 1367777
rnf_get_absdegree 1392746
bnr_get_nf 1399078
constant_coeff 1441247
Rg_col_ei 1451025
inf_get_sign 1453216
vecsmall_concat 1464652
nf_get_varn 1503731
guncloneNULL_deep 1506663
bid_get_mod 1521921
F2m_flip 1554550
F2v_flip 1554550
F2x_flip 1554550
F2x_div 1572797
uutoQ 1602144
nf_get_roots 1628818
bnf_get_gen 1680322
zv_copy 1687923
vec_ei 1714740
mkvecsmall5 1718701
gsubgs 1731929
nf_get_roundG 1748473
abgrp_get_gen 1765035
ellff_get_field 1790620
modpr_get_p 1887626
get_F2x_degree 1928666
killblock 1956355
Flx_div 1999806
ellnf_get_nf 2027258
bnr_get_bid 2046088
Flv_copy 2059188
ulogint 2105378
ell_get_j 2126269
bid_get_MOD 2157246
bid_get_sprk 2157967
ZXQ_mul 2166216
get_F2x_var 2168805
bid_get_fact2 2201565
gc_slice 2211122
pol_xn 2252824
pari_realloc_ip 2359400
bid_get_archp 2397077
bid_get_fact 2498917
rnf_get_degree 2506335
bnr_get_cyc 2522541
ell_get_b4 2550293
mul_content 2657339
cyc_get_expo 2757538
hash_str 2759564
sqrtnr 2810615
bnr_get_clgp 2830213
zero_Flm 2831212
rnf_get_pol 2845192
vecslicepermute 2859493
znstar_get_pe 2869063
F2x_equal1 2873765
bnf_get_logfu 2874749
RgX_coeff 2889731
gisdouble 2995737
mkpolmod 3075533
Fq_red 3106385
bit_accuracy_mul 3175715
ZV_to_zv 3211716
identity_perm 3243458
F3m_coeff 3255554
zero_Flx 3255709
identity_zv 3267821
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307698
get_FpX_mod 3387866
vec_append 3468964
zero_F2v 3656668
bid_get_U 3680222
bnf_get_cyc 3686614
bnr_get_bnf 3710944
nf_get_index 3712012
perm_inv 3747433
pol_1 3752526
pol_x 3860455
ell_get_b6 3863192
mulsubii 3893738
vec_to_vecsmall 4039415
vecsmall_append 4114710
sqrfrac 4151003
F2x_equal 4196637
mkcol2s 4416244
FpXQX_renormalize 4691625
pol1_F2x 4769418
mkmat 4779985
qfb_disc3 4995022
mkfraccopy 4999610
is_rational_t 5017671
bnf_get_clgp 5375484
nf_get_zkprimpart 5416200
nf_get_zkden 5462091
FpX_div 5581909
bid_get_cyc 5739775
bid_get_grp 5804626
pari_stack_delete 5876941
col_ei 5925252
isintm1 6086477
pari_stack_init 6378852
Flm_copy 6434393
sqrti 6612797
get_FpX_var 6951982
get_FpX_degree 6969176
RgX_div 6997261
vecsmall_lexcmp 7043248
ZM_lll 7117544
RgX_gtofp 7164005
ZX_is_monic 7319846
znstar_get_faN 7334819
vecsmall_copy 7341184
ell_get_b2 7371401
zc_to_ZC 7910911
vecsmall_to_col 7925455
znstar_get_conreycyc 7982108
Q_abs 8060919
mkintmod 8066750
checkell_i 8103986
ZV_ZV_mod 8147069
Flx_equal1 8196005
RgM_gtofp 8257472
F2m_coeff 8359551
Flm_row 8743690
cxtofp 9092703
veclast 9374228
ismpzero 9702373
is_intreal_t 9702473
const_col 9730066
nf_get_invzk 9774585
bnf_get_nf 9866286
RgM_dimensions 9954571
mkvec4 10150255
ell_get_a4 10325148
ell_get_a6 10371108
mkcol 10653383
ZC_hnfrem 10697391
mul_denom 10709670
ell_get_c4 11018437
ell_get_a2 11108730
Fp_addmul 11273575
ser_isexactzero 11434254
gc_INT_affii 11569878
vectrunc_init 11768612
pr_get_gen 12072170
abgrp_get_cyc 12231170
F2x_clear 12362257
F2v_clear 12362273
nbits2nlong 12753339
ell_get_a3 12863764
zeropol 12867509
ell_get_c6 13474093
gmax_shallow 13510228
modpr_get_T 13867104
zeromatcopy 14377549
closure_get_frame 14734816
rowpermute 14759419
ell_get_type 14945978
Fp_div 15034305
Fp_divu 15128837
mkvec5 15187501
vectrunc_append 15856403
pr_get_e 16166974
ell_get_disc 16815690
matslice 16825195
ell_get_a1 17049197
pr_is_inert 17223788
normalize_frac 17311579
pol0_F2x 17368272
isint1 17987140
Fp_center_i 18045883
cxcompotor 18236946
qfb_disc 18502470
mkvecsmall4 18656424
const_vecsmall 18860816
Fp_double 20897667
vecpermute 21112724
Flx_div_pre 21700565
nf_get_M 21745545
RgM_shallowcopy 22235135
RgX_is_ZX 22315497
Fp_inv 23435990
nf_get_r1 23466057
ZV_isscalar 23675026
gmulgs 23872946
get_Flx_mod 25494213
pr_get_f 26443447
RgX_equal_var 26880486
pol_0 27123736
shallowcopy 27896530
mkqfb 27928139
zerovec 29348347
modpr_get_pr 31236544
hash_str_len 31655297
submulii 31985063
RgV_is_ZV 32095986
Fp_neg 32670363
mkmat2 33665677
RgC_gtofp 34033163
const_vec 34669253
polx_Flx 37489078
lincombii 38276305
znstar_get_N 38658713
zero_zv 39512615
mkfrac 41927825
powii 43130023
is_vec_t 43949259
closure_is_variadic 45930449
absfrac 46991071
pr_get_tau 49772265
guncloneNULL 49826656
ell_is_inf 50199614
mkmat22 50256636
QV_isscalar 54419240
pol1_Flx 55713796
addmuliu_inplace 59557192
submuliu_inplace 60061823
is_real_t 61900630
zero_Flv 61993082
Fp_sqr 64070888
qfb_is_qfi 64523864
F2x_copy 64683040
gtodouble 66247539
Fp_mulu 67505787
get_Flx_var 68230159
mkvec 69365459
nf_get_degree 71375373
Fp_center 77321742
vecsmallpermute 78760004
rowslice 79461913
perm_mul 80956443
Fp_red 82929633
get_Flx_degree 83153279
gtos 85865527
sqrtr 86929962
is_noncalc_t 88515153
mkcomplex 91994052
pr_get_p 92759524
cxnorm 94097244
dbllog2r 94327395
nf_get_pol 98118155
vecsmalltrunc_append 100835959
RgX_copy 102486821
gc_all 102551520
mkvecsmall3 103247504
F2v_set 104115626
cgiv 105472972
prec2nbits 106944194
vecsmall_prefixcmp 108088071
pol0_Flx 111640106
mkvec3 122720061
gaddgs 123270543
both_odd 123887505
zerocol 125153085
F2x_renormalize 127828302
nchar2nlong 127920828
F2x_set 129976127
equalim1 139567808
mkvecsmall 140282816
bit_prec 143389169
FpX_renormalize 147014547
mkcol2 156970340
ZX_renormalize 157436871
nbrows 158270451
leading_coeff 169329727
Flx_copy 175731337
Fp_add 183408432
nbits2prec 188998518
Fp_sub 202055811
Fp_mul 203147318
mkvec2 215734798
vecsmalltrunc_init 244859004
gc_GEN 246721114
mkvecsmall2 256941707
gtofp 257180056
gmulgu 283360013
closure_get_data 305925452
closure_get_oper 305946805
closure_codestr 305960906
is_universal_constant 326512355
lgcols 352678338
closure_arity 356401105
is_scalar_t 403468704
lg_increase 452461814
bin_copy 472871353
pari_free 487231246
is_bigint 574371029
leafcopy_avma 593835619
vecslice 657379748
F2v_coeff 664441705
F2x_coeff 671059616
pari_malloc 723317506
is_matvec_t 742783950
pari_stack_new 910962461
GENbinbase 918983400
pari_stack_alloc 1006285637
pari_stack_base 1012101531
gc_leaf 1164394865
equali1 1169281396
nbits2extraprec 1497509238
gc_upto 1971391972
odd 2125333441
is_pm1 2217126056
lgpol 2624970620
isintzero 2848464636
bit_accuracy 3144838394
gc_INT 4134413664
prec2lg 4565231964
is_const_t 5002850015
degpol 5521827618
icopy_avma 8049906238
remsBIL 8146632541
divsBIL 8237056026
isonstack 8359078928
is_recursive_t 9103531933

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