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 30773-2078653b96) Lines: 1421 1535 92.6 %
Date: 2026-04-02 09:26:53 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 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 33581
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 38118
FqX_div 38567
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47770
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 68155
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 75754
bnr_get_mod 77119
gal_get_group 80412
mkcol3 88314
cyclic_perm 99932
gtou 100717
mkcol4 103467
zv_to_zx 104146
mkmoo 108901
zeromat 108965
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114534
Q_abs_shallow 120238
mkmatcopy 122310
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138813
zeroser 138992
FqX_factor 140960
RgV_is_QV 141996
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 200665
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220728
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234497
zero_Flm_copy 238312
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249621
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264435
bnr_get_no 277490
gchar_get_zm 281911
bnf_get_tuN 283000
bnf_get_fu_nocheck 289094
bnf_get_tuU 303584
nf_get_G 304844
vec_prepend 313919
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337206
upr_norm 346135
RgX_renormalize 349807
FqX_mul 367936
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385009
RgX_is_QX 399941
ZM_hnfrem 401380
abgrp_get_no 406735
perm_conj 418299
FqX_Fq_mul 427296
FqX_extgcd 445025
nf_get_disc 463509
precdbl 476375
RgX_shift_inplace 479435
RgX_shift_inplace_init 479435
Z_issquare 509451
nf_get_sign 519601
mkvec3s 524441
addmuliu 541599
ellff_get_a4a6 551456
gdivsg 559711
zv_to_ZV 569244
FqX_Fp_mul 572188
vecsmall_to_vec 578043
prec2nbits_mul 581097
vecsmall_ei 585162
powIs 596435
ZM_ZV_mod 610671
RgC_fpnorml2 619944
FqX_is_squarefree 683802
vecreverse 697303
mkrfrac 698439
coltrunc_init 740257
logint 755014
gcmpgs 761926
row 763895
rnf_get_nf 786086
zero_F2m_copy 845288
FpXX_renormalize 849322
zeropadic 857551
gmin_shallow 898182
affgr 899594
ellinf 913913
ZXQ_sqr 960609
cgetc 975459
Flx_lead 1068899
polx_F2x 1079652
pr_norm 1090526
Flx_constant 1091300
Fp_invsafe 1097253
sstoQ 1097313
Flx_mulu 1105379
vecsmall_max 1177384
mkfracss 1209563
RgV_isscalar 1210270
gen_I 1268862
RgX_is_monomial 1320068
mkoo 1332123
bnf_get_sunits 1367771
rnf_get_absdegree 1392746
bnr_get_nf 1399085
constant_coeff 1441257
Rg_col_ei 1451076
inf_get_sign 1453263
vecsmall_concat 1464662
nf_get_varn 1503742
guncloneNULL_deep 1508945
bid_get_mod 1521922
F2v_flip 1554565
F2x_flip 1554565
F2m_flip 1554566
F2x_div 1571724
uutoQ 1602144
nf_get_roots 1628890
bnf_get_gen 1680323
zv_copy 1687874
vec_ei 1714742
mkvecsmall5 1718751
gsubgs 1731938
nf_get_roundG 1748523
abgrp_get_gen 1765036
ellff_get_field 1790596
modpr_get_p 1887627
get_F2x_degree 1928600
killblock 1957387
Flx_div 1999812
ellnf_get_nf 2027226
bnr_get_bid 2046096
Flv_copy 2059131
ulogint 2107471
ell_get_j 2126269
bid_get_MOD 2157258
bid_get_sprk 2157984
ZXQ_mul 2166297
get_F2x_var 2168708
bid_get_fact2 2201582
gc_slice 2211120
pol_xn 2252852
pari_realloc_ip 2358087
bid_get_archp 2397101
bid_get_fact 2498920
rnf_get_degree 2506335
bnr_get_cyc 2522563
ell_get_b4 2550293
mul_content 2657524
cyc_get_expo 2757549
hash_str 2757673
sqrtnr 2810773
bnr_get_clgp 2830237
zero_Flm 2831139
rnf_get_pol 2845192
vecslicepermute 2858829
znstar_get_pe 2869063
F2x_equal1 2873687
bnf_get_logfu 2874771
RgX_coeff 2889731
gisdouble 2996453
mkpolmod 3075522
Fq_red 3106183
bit_accuracy_mul 3175715
ZV_to_zv 3211714
identity_perm 3243486
F3m_coeff 3255555
zero_Flx 3255676
identity_zv 3267849
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307646
get_FpX_mod 3387878
vec_append 3468932
zero_F2v 3656686
bid_get_U 3680236
bnf_get_cyc 3686616
bnr_get_bnf 3710952
nf_get_index 3712012
perm_inv 3747506
pol_1 3752502
pol_x 3860572
ell_get_b6 3863192
mulsubii 3894609
vec_to_vecsmall 4039424
vecsmall_append 4114732
sqrfrac 4151043
F2x_equal 4191730
mkcol2s 4416244
FpXQX_renormalize 4692327
pol1_F2x 4768709
mkmat 4780147
qfb_disc3 4995377
mkfraccopy 4999670
is_rational_t 5017732
bnf_get_clgp 5375483
nf_get_zkprimpart 5416361
nf_get_zkden 5462173
FpX_div 5581964
bid_get_cyc 5739788
bid_get_grp 5804640
pari_stack_delete 5889076
col_ei 5925145
isintm1 6086620
pari_stack_init 6378894
Flm_copy 6434548
sqrti 6612781
get_FpX_var 6952121
get_FpX_degree 6969227
RgX_div 6997261
vecsmall_lexcmp 7043259
ZM_lll 7118047
RgX_gtofp 7164075
ZX_is_monic 7319817
znstar_get_faN 7334819
vecsmall_copy 7341180
ell_get_b2 7371395
zc_to_ZC 7910616
vecsmall_to_col 7925159
znstar_get_conreycyc 7982108
Q_abs 8061059
mkintmod 8066636
checkell_i 8103976
ZV_ZV_mod 8147146
Flx_equal1 8195948
RgM_gtofp 8258293
F2m_coeff 8359620
Flm_row 8743660
cxtofp 9094429
veclast 9374233
ismpzero 9702604
is_intreal_t 9702713
const_col 9730127
nf_get_invzk 9774661
bnf_get_nf 9866324
RgM_dimensions 9955046
mkvec4 10150197
ell_get_a4 10325143
ell_get_a6 10371103
mkcol 10653365
ZC_hnfrem 10697350
mul_denom 10709629
ell_get_c4 11018861
ell_get_a2 11108725
Fp_addmul 11202671
ser_isexactzero 11434254
gc_INT_affii 11570187
vectrunc_init 11766003
pr_get_gen 12072537
abgrp_get_cyc 12231223
F2x_clear 12362349
F2v_clear 12362358
nbits2nlong 12751043
ell_get_a3 12863753
zeropol 12867507
ell_get_c6 13474555
gmax_shallow 13510225
modpr_get_T 13867049
zeromatcopy 14378651
closure_get_frame 14734821
rowpermute 14759193
ell_get_type 14946030
Fp_div 15033877
Fp_divu 15128356
mkvec5 15187629
vectrunc_append 15855407
pr_get_e 16167204
ell_get_disc 16815991
matslice 16824947
ell_get_a1 17049186
pr_is_inert 17224390
normalize_frac 17311167
pol0_F2x 17355254
isint1 17987256
Fp_center_i 18022531
cxcompotor 18240616
qfb_disc 18502536
mkvecsmall4 18650556
const_vecsmall 18861374
Fp_double 20690689
vecpermute 21111163
Flx_div_pre 21710151
nf_get_M 21746191
RgM_shallowcopy 22235783
RgX_is_ZX 22315676
Fp_inv 23436170
nf_get_r1 23466715
ZV_isscalar 23675612
gmulgs 23890912
get_Flx_mod 25498617
pr_get_f 26444125
RgX_equal_var 26880483
pol_0 27123788
shallowcopy 27897444
mkqfb 27928870
zerovec 29348441
modpr_get_pr 31236427
hash_str_len 31655965
submulii 31985063
RgV_is_ZV 32095985
Fp_neg 32669039
mkmat2 33666733
RgC_gtofp 34037661
const_vec 34674551
polx_Flx 37496112
lincombii 38277126
znstar_get_N 38658713
zero_zv 39512048
mkfrac 41928242
powii 43130074
is_vec_t 43944335
closure_is_variadic 45930627
absfrac 46991376
pr_get_tau 49773464
guncloneNULL 49829084
ell_is_inf 50179112
mkmat22 50254632
QV_isscalar 54419949
pol1_Flx 55727219
addmuliu_inplace 59566146
submuliu_inplace 60079582
is_real_t 61900630
zero_Flv 61991512
Fp_sqr 63322135
qfb_is_qfi 64531370
F2x_copy 64571883
gtodouble 66250578
Fp_mulu 67582558
get_Flx_var 68245486
mkvec 69340517
nf_get_degree 71376493
Fp_center 77263852
vecsmallpermute 78759148
rowslice 79453149
perm_mul 80955513
Fp_red 82934907
get_Flx_degree 83275898
gtos 85865536
sqrtr 86934229
is_noncalc_t 88515722
mkcomplex 92017152
pr_get_p 92760389
cxnorm 94101840
dbllog2r 94331064
nf_get_pol 98119703
vecsmalltrunc_append 100772715
RgX_copy 102487058
gc_all 102552453
mkvecsmall3 103250412
F2v_set 104115713
cgiv 105481384
prec2nbits 106944940
vecsmall_prefixcmp 108088071
pol0_Flx 111643357
mkvec3 123044987
gaddgs 123270532
both_odd 123939881
zerocol 125161463
F2x_renormalize 127884227
nchar2nlong 127926662
F2x_set 130002722
equalim1 139567971
mkvecsmall 140283927
bit_prec 143409988
FpX_renormalize 147015895
mkcol2 156942866
ZX_renormalize 157456746
nbrows 158278192
leading_coeff 169336392
Flx_copy 175800956
Fp_add 183155930
nbits2prec 189014803
Fp_sub 200817020
Fp_mul 203009627
mkvec2 216360222
vecsmalltrunc_init 246166914
gc_GEN 246747704
mkvecsmall2 256941471
gtofp 257219600
gmulgu 283360013
closure_get_data 305899228
closure_get_oper 305920845
closure_codestr 305939990
is_universal_constant 326533976
lgcols 352678283
closure_arity 356376053
is_scalar_t 403471483
lg_increase 450217029
bin_copy 472890016
pari_free 487252946
is_bigint 574377528
leafcopy_avma 593109358
vecslice 657255411
F2v_coeff 664441150
F2x_coeff 671018295
pari_malloc 723354989
is_matvec_t 742751077
pari_stack_new 910940450
GENbinbase 919021733
pari_stack_alloc 1006264271
pari_stack_base 1012096382
gc_leaf 1165201273
equali1 1169275429
nbits2extraprec 1497785433
gc_upto 1971453226
odd 2124790060
is_pm1 2217081281
lgpol 2629931157
isintzero 2848384161
bit_accuracy 3145045066
gc_INT 4134293413
prec2lg 4561724902
is_const_t 5002486082
degpol 5528194494
icopy_avma 8049776169
remsBIL 8149068288
divsBIL 8240428780
isonstack 8359973246
is_recursive_t 9105225653

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