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: 2026-04-04 09:27:12 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 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 23277
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 33314
mkcolcopy 33590
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 38085
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 58511
RgX_fpnorml2 61609
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 75754
bnr_get_mod 77117
gal_get_group 80413
mkcol3 88314
cyclic_perm 99932
gtou 100710
mkcol4 103467
zv_to_zx 104146
mkmoo 108901
zeromat 109008
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114532
Q_abs_shallow 120234
mkmatcopy 122296
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138819
zeroser 138992
FqX_factor 140960
RgV_is_QV 141999
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 200669
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220726
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234506
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 277490
gchar_get_zm 281911
bnf_get_tuN 283000
bnf_get_fu_nocheck 289094
bnf_get_tuU 303576
nf_get_G 304834
vec_prepend 313930
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337204
upr_norm 346136
RgX_renormalize 349807
FqX_mul 367935
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385001
RgX_is_QX 399938
ZM_hnfrem 401437
abgrp_get_no 406736
perm_conj 418299
FqX_Fq_mul 427300
FqX_extgcd 445023
nf_get_disc 463515
precdbl 476373
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
Z_issquare 509450
nf_get_sign 519600
mkvec3s 524441
addmuliu 541554
ellff_get_a4a6 551458
gdivsg 559709
zv_to_ZV 569244
FqX_Fp_mul 572203
vecsmall_to_vec 578043
prec2nbits_mul 581096
vecsmall_ei 585158
powIs 596435
ZM_ZV_mod 610636
RgC_fpnorml2 619945
FqX_is_squarefree 683802
vecreverse 697304
mkrfrac 698437
coltrunc_init 740257
logint 755023
gcmpgs 761918
row 763871
rnf_get_nf 786086
zero_F2m_copy 845297
FpXX_renormalize 849322
zeropadic 857377
gmin_shallow 898179
affgr 899594
ellinf 913878
ZXQ_sqr 960517
cgetc 975457
Flx_lead 1068327
polx_F2x 1078905
pr_norm 1090560
Flx_constant 1091269
Fp_invsafe 1097248
sstoQ 1097313
Flx_mulu 1105458
vecsmall_max 1177284
mkfracss 1209563
RgV_isscalar 1210273
gen_I 1268869
RgX_is_monomial 1320028
mkoo 1332079
bnf_get_sunits 1367768
rnf_get_absdegree 1392746
bnr_get_nf 1399070
constant_coeff 1441250
Rg_col_ei 1451094
inf_get_sign 1453220
vecsmall_concat 1464651
nf_get_varn 1503771
guncloneNULL_deep 1514679
bid_get_mod 1521922
F2m_flip 1554420
F2v_flip 1554420
F2x_flip 1554420
F2x_div 1570628
uutoQ 1602144
nf_get_roots 1628872
bnf_get_gen 1680320
zv_copy 1687818
vec_ei 1714748
mkvecsmall5 1718714
gsubgs 1731939
nf_get_roundG 1748520
abgrp_get_gen 1765028
ellff_get_field 1790597
modpr_get_p 1887627
get_F2x_degree 1928514
killblock 1959387
Flx_div 1999793
ellnf_get_nf 2027234
bnr_get_bid 2046096
Flv_copy 2059085
ulogint 2074976
ell_get_j 2126269
bid_get_MOD 2157255
bid_get_sprk 2157975
ZXQ_mul 2166110
get_F2x_var 2168598
bid_get_fact2 2201578
gc_slice 2211175
pol_xn 2252825
pari_realloc_ip 2358199
bid_get_archp 2397113
bid_get_fact 2498936
rnf_get_degree 2506335
bnr_get_cyc 2522559
ell_get_b4 2550293
mul_content 2657504
cyc_get_expo 2757553
hash_str 2757673
sqrtnr 2810714
bnr_get_clgp 2830224
zero_Flm 2830813
rnf_get_pol 2845192
vecslicepermute 2858741
znstar_get_pe 2869063
F2x_equal1 2873842
bnf_get_logfu 2874759
RgX_coeff 2889731
gisdouble 2995982
mkpolmod 3075552
Fq_red 3106308
bit_accuracy_mul 3175715
ZV_to_zv 3211715
identity_perm 3243128
zero_Flx 3255204
F3m_coeff 3255656
identity_zv 3267491
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307691
get_FpX_mod 3387852
vec_append 3468948
zero_F2v 3656713
bid_get_U 3680232
bnf_get_cyc 3686611
bnr_get_bnf 3710940
nf_get_index 3712017
perm_inv 3747368
pol_1 3752462
pol_x 3860488
ell_get_b6 3863192
mulsubii 3893664
vec_to_vecsmall 4039411
vecsmall_append 4114722
sqrfrac 4151002
F2x_equal 4187881
mkcol2s 4416244
FpXQX_renormalize 4692190
pol1_F2x 4768041
mkmat 4780165
qfb_disc3 4995364
mkfraccopy 4999490
is_rational_t 5017670
bnf_get_clgp 5375465
nf_get_zkprimpart 5416334
nf_get_zkden 5462177
FpX_div 5581989
bid_get_cyc 5739829
bid_get_grp 5804673
pari_stack_delete 5905129
col_ei 5925253
isintm1 6086562
pari_stack_init 6379055
Flm_copy 6434538
sqrti 6612747
get_FpX_var 6951957
get_FpX_degree 6969247
RgX_div 6997261
vecsmall_lexcmp 7043253
ZM_lll 7117909
RgX_gtofp 7163966
ZX_is_monic 7319817
znstar_get_faN 7334819
vecsmall_copy 7341074
ell_get_b2 7371406
zc_to_ZC 7910713
vecsmall_to_col 7925259
znstar_get_conreycyc 7982108
Q_abs 8060996
mkintmod 8066828
checkell_i 8103979
ZV_ZV_mod 8147098
Flx_equal1 8196239
RgM_gtofp 8258017
F2m_coeff 8363540
Flm_row 8743421
cxtofp 9094002
veclast 9374228
ismpzero 9702544
is_intreal_t 9702651
const_col 9730125
nf_get_invzk 9774778
bnf_get_nf 9866314
RgM_dimensions 9955032
mkvec4 10150173
ell_get_a4 10325137
ell_get_a6 10371097
mkcol 10653336
ZC_hnfrem 10697449
mul_denom 10709727
ell_get_c4 11018743
ell_get_a2 11108719
Fp_addmul 11244745
ser_isexactzero 11434254
gc_INT_affii 11568448
vectrunc_init 11765924
pr_get_gen 12072712
abgrp_get_cyc 12231244
F2x_clear 12362241
F2v_clear 12362248
nbits2nlong 12748720
ell_get_a3 12863758
zeropol 12867426
ell_get_c6 13474406
gmax_shallow 13510228
modpr_get_T 13867121
zeromatcopy 14378300
closure_get_frame 14734915
rowpermute 14758548
ell_get_type 14946107
Fp_div 15033932
Fp_divu 15128396
mkvec5 15187726
vectrunc_append 15854761
pr_get_e 16167274
ell_get_disc 16815746
matslice 16824197
ell_get_a1 17049192
pr_is_inert 17224351
normalize_frac 17310509
pol0_F2x 17346978
isint1 17987225
Fp_center_i 17993656
cxcompotor 18239625
qfb_disc 18502493
mkvecsmall4 18652635
const_vecsmall 18860884
Fp_double 20785579
vecpermute 21110969
Flx_div_pre 21707279
nf_get_M 21745465
RgM_shallowcopy 22235777
RgX_is_ZX 22315705
Fp_inv 23435986
nf_get_r1 23465910
ZV_isscalar 23674896
gmulgs 23856643
get_Flx_mod 25499063
pr_get_f 26444483
RgX_equal_var 26880496
pol_0 27123703
shallowcopy 27896549
mkqfb 27928809
zerovec 29348334
modpr_get_pr 31236600
hash_str_len 31655919
submulii 31985063
RgV_is_ZV 32095992
Fp_neg 32666729
mkmat2 33666691
RgC_gtofp 34033966
const_vec 34674216
polx_Flx 37494500
lincombii 38274098
znstar_get_N 38658713
zero_zv 39509035
mkfrac 41925412
powii 43130078
is_vec_t 43952768
closure_is_variadic 45930815
absfrac 46991278
pr_get_tau 49773417
guncloneNULL 49835227
ell_is_inf 50180303
mkmat22 50250393
QV_isscalar 54420256
pol1_Flx 55725984
addmuliu_inplace 59555498
submuliu_inplace 60072133
is_real_t 61900626
zero_Flv 61987087
Fp_sqr 63554451
qfb_is_qfi 64519753
F2x_copy 64555459
gtodouble 66251530
Fp_mulu 66391439
get_Flx_var 68244741
mkvec 69328514
nf_get_degree 71376788
Fp_center 77250406
vecsmallpermute 78751825
rowslice 79443725
perm_mul 80948126
get_Flx_degree 82639817
Fp_red 82931069
gtos 85865502
sqrtr 86931995
is_noncalc_t 88515551
mkcomplex 92016275
pr_get_p 92760824
cxnorm 94098935
dbllog2r 94330183
nf_get_pol 98120370
vecsmalltrunc_append 100797486
RgX_copy 102487120
gc_all 102551662
mkvecsmall3 103251905
F2v_set 104116171
cgiv 105475663
prec2nbits 106945170
vecsmall_prefixcmp 108088071
pol0_Flx 111624461
mkvec3 121145631
gaddgs 123270556
both_odd 124027150
zerocol 125156532
F2x_renormalize 127858582
nchar2nlong 127921746
F2x_set 129973175
equalim1 139568061
mkvecsmall 140265337
bit_prec 143393349
FpX_renormalize 147007319
mkcol2 156922015
ZX_renormalize 157442087
nbrows 158272172
leading_coeff 169335032
Flx_copy 175792917
Fp_add 183297400
nbits2prec 189004191
Fp_sub 200962683
Fp_mul 203053456
mkvec2 213210056
vecsmalltrunc_init 239949215
gc_GEN 246721815
mkvecsmall2 256955497
gtofp 257166208
gmulgu 283360013
closure_get_data 305935046
closure_get_oper 305959848
closure_codestr 305981913
is_universal_constant 326509044
lgcols 352669422
closure_arity 356405523
is_scalar_t 403470841
lg_increase 437136454
bin_copy 472879719
pari_free 487251099
is_bigint 574367222
leafcopy_avma 593382378
vecslice 657194581
F2v_coeff 664444707
F2x_coeff 670971821
pari_malloc 723347040
is_matvec_t 742779822
pari_stack_new 911054407
GENbinbase 919000992
pari_stack_alloc 1006378860
pari_stack_base 1012223081
gc_leaf 1162498468
equali1 1169275962
nbits2extraprec 1497828470
gc_upto 1971346685
odd 2123189074
is_pm1 2216497384
lgpol 2625922103
isintzero 2848061193
bit_accuracy 3144818798
gc_INT 4133080708
prec2lg 4561052920
is_const_t 5002627421
degpol 5520096017
icopy_avma 8049762160
remsBIL 8148867491
divsBIL 8240235397
isonstack 8356054293
is_recursive_t 9104889981

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