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 30838-aa3635ec72) Lines: 1421 1535 92.6 %
Date: 2026-04-28 09:25:50 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 17149
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 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 29945
gchar_get_basis 32816
gal_get_roots 32844
F2xqX_div 33173
ndec2prec 33356
mkcolcopy 33577
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 38084
FqX_div 38567
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41626
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 61607
err_get_num 62596
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 75746
bnr_get_mod 77119
gal_get_group 80415
mkcol3 88314
cyclic_perm 99932
gtou 100704
mkcol4 103467
zv_to_zx 104146
mkmoo 108889
zeromat 108996
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114528
Q_abs_shallow 120228
mkmatcopy 122313
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138807
zeroser 139013
FqX_factor 140960
RgV_is_QV 141995
get_FpXQX_mod 146583
FlxqX_div_pre 165414
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200666
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220740
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234426
zero_Flm_copy 238304
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 277486
gchar_get_zm 281911
bnf_get_tuN 282999
bnf_get_fu_nocheck 289091
bnf_get_tuU 303577
nf_get_G 304789
vec_prepend 313927
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337206
upr_norm 346134
RgX_renormalize 349807
FqX_mul 368265
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385006
RgX_is_QX 399940
ZM_hnfrem 401363
abgrp_get_no 406734
perm_conj 418299
FqX_Fq_mul 427302
FqX_extgcd 445778
nf_get_disc 463575
precdbl 476399
RgX_shift_inplace 479449
RgX_shift_inplace_init 479449
Z_issquare 509454
nf_get_sign 519601
mkvec3s 524441
addmuliu 541644
ellff_get_a4a6 551462
gdivsg 561180
zv_to_ZV 569244
FqX_Fp_mul 573018
vecsmall_to_vec 578043
prec2nbits_mul 581095
vecsmall_ei 585112
ZM_ZV_mod 610755
RgC_fpnorml2 619945
powIs 620095
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755031
gcmpgs 761941
row 763876
rnf_get_nf 786086
zero_F2m_copy 845265
FpXX_renormalize 849322
zeropadic 857636
affgr 899650
gmin_shallow 899736
ellinf 913918
ZXQ_sqr 960606
cgetc 975445
Flx_lead 1069250
polx_F2x 1078890
pr_norm 1090459
Flx_constant 1091321
Fp_invsafe 1097242
sstoQ 1097313
Flx_mulu 1105309
vecsmall_max 1177304
mkfracss 1209563
RgV_isscalar 1210269
gen_I 1268855
RgX_is_monomial 1326826
mkoo 1332040
bnf_get_sunits 1367773
rnf_get_absdegree 1392746
bnr_get_nf 1399067
constant_coeff 1442669
Rg_col_ei 1451082
inf_get_sign 1453155
vecsmall_concat 1464643
nf_get_varn 1503769
guncloneNULL_deep 1517868
bid_get_mod 1521922
F2m_flip 1554198
F2v_flip 1554198
F2x_flip 1554198
F2x_div 1570917
uutoQ 1602144
nf_get_roots 1628823
bnf_get_gen 1680313
zv_copy 1687984
vec_ei 1714702
mkvecsmall5 1718721
gsubgs 1731065
nf_get_roundG 1748462
abgrp_get_gen 1765028
ellff_get_field 1790616
modpr_get_p 1887626
get_F2x_degree 1928641
killblock 1961625
Flx_div 1999742
ellnf_get_nf 2027231
bnr_get_bid 2046092
Flv_copy 2059216
ulogint 2086135
ell_get_j 2126269
bid_get_MOD 2157243
bid_get_sprk 2157968
ZXQ_mul 2166206
get_F2x_var 2168796
bid_get_fact2 2201565
gc_slice 2211543
pol_xn 2253495
pari_realloc_ip 2345857
bid_get_archp 2397083
bid_get_fact 2498924
rnf_get_degree 2506335
bnr_get_cyc 2522565
ell_get_b4 2550293
mul_content 2657458
cyc_get_expo 2757555
hash_str 2781053
sqrtnr 2810636
bnr_get_clgp 2830244
zero_Flm 2831012
rnf_get_pol 2845192
vecslicepermute 2858328
znstar_get_pe 2869063
F2x_equal1 2873548
bnf_get_logfu 2874757
RgX_coeff 2889731
gisdouble 2995777
mkpolmod 3075564
Fq_red 3105966
bit_accuracy_mul 3175733
ZV_to_zv 3211716
identity_perm 3243281
F3m_coeff 3255558
zero_Flx 3255572
identity_zv 3267643
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307607
get_FpX_mod 3387872
vec_append 3469005
zero_F2v 3656617
bid_get_U 3680219
bnf_get_cyc 3686607
bnr_get_bnf 3710942
nf_get_index 3711976
perm_inv 3747413
pol_1 3752555
ell_get_b6 3863192
pol_x 3865073
mulsubii 3892196
vec_to_vecsmall 4040774
vecsmall_append 4114719
F2x_equal 4187166
sqrfrac 4200801
mkcol2s 4416244
FpXQX_renormalize 4692321
pol1_F2x 4769268
mkmat 4780850
qfb_disc3 4994912
mkfraccopy 5006485
is_rational_t 5016865
bnf_get_clgp 5375468
nf_get_zkprimpart 5416238
nf_get_zkden 5462059
FpX_div 5582163
bid_get_cyc 5739790
bid_get_grp 5804646
pari_stack_delete 5918063
col_ei 5925164
isintm1 6086923
pari_stack_init 6347616
Flm_copy 6434512
sqrti 6612497
get_FpX_var 6952321
get_FpX_degree 6969441
RgX_div 6998185
vecsmall_lexcmp 7043259
ZM_lll 7136071
RgX_gtofp 7164753
ZX_is_monic 7319859
znstar_get_faN 7334819
vecsmall_copy 7341175
ell_get_b2 7371392
zc_to_ZC 7910547
vecsmall_to_col 7925095
znstar_get_conreycyc 7982108
mkintmod 8066570
Q_abs 8078367
checkell_i 8103941
ZV_ZV_mod 8147221
Flx_equal1 8195814
RgM_gtofp 8257398
F2m_coeff 8358906
Flm_row 8743467
cxtofp 9093219
veclast 9374240
ismpzero 9712931
is_intreal_t 9713036
const_col 9730080
nf_get_invzk 9774508
bnf_get_nf 9866304
RgM_dimensions 9954994
mkvec4 10156487
ell_get_a4 10325148
ell_get_a6 10371108
mkcol 10654038
ZC_hnfrem 10697336
mul_denom 10753334
ell_get_c4 11017711
ell_get_a2 11108730
Fp_addmul 11261512
ser_isexactzero 11434317
gc_INT_affii 11569830
vectrunc_init 11768907
pr_get_gen 12072351
abgrp_get_cyc 12231208
F2v_clear 12361644
F2x_clear 12361657
nbits2nlong 12773703
ell_get_a3 12863757
zeropol 12889495
ell_get_c6 13473420
gmax_shallow 13510227
modpr_get_T 13866922
zeromatcopy 14377964
closure_get_frame 14690036
rowpermute 14758673
ell_get_type 14945858
Fp_div 15033296
Fp_divu 15127828
mkvec5 15187577
vectrunc_append 15855536
pr_get_e 16167195
ell_get_disc 16813905
matslice 16823623
ell_get_a1 17049190
pr_is_inert 17224211
pol0_F2x 17356363
normalize_frac 17566867
Fp_center_i 17948120
isint1 17994604
cxcompotor 18238192
qfb_disc 18502534
mkvecsmall4 18636966
const_vecsmall 18859829
Fp_double 20858275
vecpermute 21109482
Flx_div_pre 21708733
nf_get_M 21741493
RgM_shallowcopy 22226356
RgX_is_ZX 22316322
Fp_inv 23412838
nf_get_r1 23466270
ZV_isscalar 23675304
gmulgs 23859543
get_Flx_mod 25499181
pr_get_f 26444051
RgX_equal_var 26880475
pol_0 27168603
shallowcopy 27896233
mkqfb 27927973
zerovec 29348343
modpr_get_pr 31236249
hash_str_len 31624582
submulii 31985063
RgV_is_ZV 32096690
Fp_neg 32671848
mkmat2 33655528
RgC_gtofp 34032417
const_vec 34637367
polx_Flx 37500298
lincombii 38266063
znstar_get_N 38658713
zero_zv 39510685
mkfrac 42556120
powii 43130008
is_vec_t 44042106
closure_is_variadic 45950283
absfrac 47729562
pr_get_tau 49772992
guncloneNULL 49840105
ell_is_inf 50154868
mkmat22 50247673
QV_isscalar 54419342
pol1_Flx 55727758
addmuliu_inplace 59557096
submuliu_inplace 60068879
is_real_t 61900635
zero_Flv 61990716
Fp_sqr 64080620
qfb_is_qfi 64517558
F2x_copy 64591643
Fp_mulu 64835773
gtodouble 66253353
get_Flx_var 68244993
mkvec 68870948
nf_get_degree 71375608
Fp_center 77156840
vecsmallpermute 78751862
rowslice 79430026
perm_mul 80948232
get_Flx_degree 81831569
Fp_red 82933348
gtos 85878136
sqrtr 87171469
is_noncalc_t 88514286
mkcomplex 92020835
pr_get_p 92759866
cxnorm 94252485
dbllog2r 94338056
nf_get_pol 98117921
vecsmalltrunc_append 100731284
gc_all 102445350
RgX_copy 102503856
mkvecsmall3 103249879
F2v_set 104114433
cgiv 105481046
prec2nbits 106950427
vecsmall_prefixcmp 108088071
pol0_Flx 111647695
mkvec3 118678180
both_odd 123029629
gaddgs 123271139
zerocol 125176496
F2x_renormalize 127801623
nchar2nlong 127842809
F2x_set 129980821
equalim1 139546516
mkvecsmall 140340955
bit_prec 143394149
FpX_renormalize 147163262
mkcol2 156967344
ZX_renormalize 157535441
nbrows 158338112
leading_coeff 169346842
Flx_copy 175801820
Fp_add 183402015
nbits2prec 189013487
Fp_sub 201981125
Fp_mul 203576877
mkvec2 214303292
vecsmalltrunc_init 241688526
gc_GEN 246849091
mkvecsmall2 256916668
gtofp 257174550
gmulgu 283360013
closure_get_data 305849812
closure_get_oper 305875035
closure_codestr 305898103
is_universal_constant 326425086
lgcols 352733744
closure_arity 356320726
is_scalar_t 403951583
lg_increase 440134246
bin_copy 472927517
pari_free 487298229
is_bigint 574372547
leafcopy_avma 593068899
vecslice 657213188
F2v_coeff 664437399
F2x_coeff 671054652
pari_malloc 723401804
is_matvec_t 743672184
pari_stack_new 910424741
GENbinbase 919108886
pari_stack_alloc 1005789821
pari_stack_base 1011656791
gc_leaf 1159234173
equali1 1171326049
nbits2extraprec 1497095591
gc_upto 1972569698
odd 2123482245
is_pm1 2217225108
lgpol 2619111681
isintzero 2848700596
bit_accuracy 3145726307
gc_INT 4136780168
prec2lg 4564606026
is_const_t 5000864300
degpol 5502417245
icopy_avma 8055092810
remsBIL 8149254021
divsBIL 8240744490
isonstack 8357265783
is_recursive_t 9112051684

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