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
F2m_coeff 8358906
F2m_copy 200666
F2m_flip 1554198
F2m_set 798
F2v_clear 12361644
F2v_coeff 664437399
F2v_copy 4487
F2v_ei 42
F2v_flip 1554198
F2v_set 104114433
F2v_to_F2x 38084
F2xX_shift 0
F2x_clear 12361657
F2x_coeff 671054652
F2x_copy 64591643
F2x_div 1570917
F2x_equal 4187166
F2x_equal1 2873548
F2x_flip 1554198
F2x_renormalize 127801623
F2x_set 129980821
F2xqX_div 33173
F3m_coeff 3255558
F3m_copy 0
F3m_set 0
Flm_copy 6434512
Flm_row 8743467
Flv_copy 2059216
Flx_constant 1091321
Flx_copy 175801820
Flx_div 1999742
Flx_div_pre 21708733
Flx_equal1 8195814
Flx_lead 1069250
Flx_mulu 1105309
FlxqX_div 0
FlxqX_div_pre 165414
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4692321
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582163
FpX_renormalize 147163262
Fp_add 183402015
Fp_addmul 11261512
Fp_center 77156840
Fp_center_i 17948120
Fp_div 15033296
Fp_divu 15127828
Fp_double 20858275
Fp_halve 247271
Fp_inv 23412838
Fp_invsafe 1097242
Fp_mul 203576877
Fp_muls 17780
Fp_mulu 64835773
Fp_neg 32671848
Fp_red 82933348
Fp_sqr 64080620
Fp_sub 201981125
FqXQ_add 0
FqXQ_div 0
FqXQ_inv 0
FqXQ_invsafe 0
FqXQ_mul 22766
FqXQ_pow 0
FqXQ_sqr 0
FqXQ_sub 0
FqX_Fp_mul 573018
FqX_Fq_mul 427302
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38567
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 445778
FqX_factor 140960
FqX_factor_squarefree 7
FqX_gcd 8288
FqX_get_red 6090
FqX_halfgcd 0
FqX_halve 19411
FqX_integ 0
FqX_is_squarefree 683802
FqX_mul 368265
FqX_mulu 21942
FqX_neg 24956
FqX_normalize 4144
FqX_powu 1295
FqX_red 25354
FqX_rem 37743
FqX_roots 7273
FqX_sqr 71855
FqX_sub 68607
FqX_to_mod 175
FqXn_exp 0
FqXn_expint 6590
FqXn_inv 7126
FqXn_mul 263403
FqXn_sqr 0
Fq_red 3105966
Fq_to_FpXQ 73652
GENbinbase 919108886
QV_isscalar 54419342
Q_abs 8078367
Q_abs_shallow 120228
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619945
RgC_gtofp 34032417
RgC_gtomp 574
RgM_dimensions 9954994
RgM_fpnorml2 22655
RgM_gtofp 8257398
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22226356
RgV_gtofp 56
RgV_is_QV 141995
RgV_is_ZV 32096690
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210269
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102503856
RgX_div 6998185
RgX_equal_var 26880475
RgX_fpnorml2 61607
RgX_gtofp 7164753
RgX_is_QX 399940
RgX_is_ZX 22316322
RgX_is_monomial 1326826
RgX_is_rational 68159
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479449
RgX_shift_inplace_init 479449
RgX_to_RgV 140
Rg_col_ei 1451082
Rg_to_Fq 756
ZC_hnfrem 10697336
ZM_ZV_mod 610755
ZM_hnfrem 401363
ZM_lll 7136071
ZV_ZV_mod 8147221
ZV_dvd 23485
ZV_isscalar 23675304
ZV_to_zv 3211716
ZXQ_mul 2166206
ZXQ_sqr 960606
ZX_equal1 10488
ZX_is_monic 7319859
ZX_renormalize 157535441
Z_ispower 98
Z_issquare 509454
abgrp_get_cyc 12231208
abgrp_get_gen 1765028
abgrp_get_no 406734
absfrac 47729562
absfrac_shallow 28237
addmuliu 541644
addmuliu_inplace 59557096
affc_fixlg 249622
affgr 899650
bid_get_MOD 2157243
bid_get_U 3680219
bid_get_arch 41188
bid_get_archp 2397083
bid_get_cyc 5739790
bid_get_fact 2498924
bid_get_fact2 2201565
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804646
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157968
bin_copy 472927517
bit_accuracy 3145726307
bit_accuracy_mul 3175733
bit_prec 143394149
bnf_get_clgp 5375468
bnf_get_cyc 3686607
bnf_get_fu 25859
bnf_get_fu_nocheck 289091
bnf_get_gen 1680313
bnf_get_logfu 2874757
bnf_get_nf 9866304
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367773
bnf_get_tuN 282999
bnf_get_tuU 303577
bnr_get_bid 2046092
bnr_get_bnf 3710942
bnr_get_clgp 2830244
bnr_get_cyc 2522565
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399067
bnr_get_no 277486
both_odd 123029629
cbrtr 0
cbrtr_abs 0
cgetalloc 10157
cgetc 975445
cgiv 105481046
checkell_i 8103941
closure_arity 356320726
closure_codestr 305898103
closure_get_code 28
closure_get_data 305849812
closure_get_dbg 13660
closure_get_frame 14690036
closure_get_oper 305875035
closure_get_text 37150
closure_is_variadic 45950283
col_ei 5925164
coltrunc_init 740257
const_col 9730080
const_vec 34637367
const_vecsmall 18859829
constant_coeff 1442669
cxcompotor 18238192
cxnorm 94252485
cxtofp 9093219
cxtoreal 337206
cyc_get_expo 2757555
cyclic_perm 99932
dbllog2r 94338056
degpol 5502417245
div_content 58511
divsBIL 8240744490
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 17049190
ell_get_a2 11108730
ell_get_a3 12863757
ell_get_a4 10325148
ell_get_a6 10371108
ell_get_b2 7371392
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11017711
ell_get_c6 13473420
ell_get_disc 16813905
ell_get_j 2126269
ell_get_type 14945858
ell_is_inf 50154868
ellff_get_a4a6 551462
ellff_get_field 1790616
ellinf 913918
ellnf_get_bnf 119
ellnf_get_nf 2027231
equali1 1171326049
equalim1 139546516
err_get_compo 294
err_get_num 62596
gaddgs 123271139
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80415
gal_get_invvdm 27874
gal_get_mod 23870
gal_get_orders 6706
gal_get_p 6118
gal_get_pol 36428
gal_get_roots 32844
gc_GEN 246849091
gc_INT 4136780168
gc_INT_affii 11569830
gc_all 102445350
gc_leaf 1159234173
gc_slice 2211543
gc_upto 1972569698
gchar_copy_precs 1225
gchar_get_DLdata 190673
gchar_get_S 36995
gchar_get_U 0
gchar_get_Ui 10983
gchar_get_basis 32816
gchar_get_bnf 205373
gchar_get_cyc 16177
gchar_get_evalprec 4011
gchar_get_hnf 0
gchar_get_loccyc 50519
gchar_get_m0 3318
gchar_get_mod 8225
gchar_get_modP 4095
gchar_get_nalg 2044
gchar_get_nc 37261
gchar_get_nf 243946
gchar_get_nfprec 13468
gchar_get_nfree 322
gchar_get_nm 1869
gchar_get_ns 36995
gchar_get_ntors 322
gchar_get_prec 18795
gchar_get_r1 17444
gchar_get_r2 623
gchar_get_sfu 1743
gchar_get_u0 4252
gchar_get_zm 281911
gchar_set_HUUi 630
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_set_evalprec 1813
gchar_set_m0 945
gchar_set_nalg 630
gchar_set_nf 2110
gchar_set_nfprec 2968
gchar_set_nfree 630
gchar_set_ntors 630
gchar_set_prec 1225
gchar_set_u0 2121
gcmpgs 761941
gdivsg 561180
gen_I 1268855
gener_Fq_local 29945
gequalgs 29176
get_F2x_degree 1928641
get_F2x_mod 3307607
get_F2x_var 2168796
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 81831569
get_Flx_mod 25499181
get_Flx_var 68244993
get_FlxqX_degree 317580
get_FlxqX_mod 8033
get_FlxqX_var 264435
get_FpXQX_degree 3589
get_FpXQX_mod 146583
get_FpXQX_var 51630
get_FpX_degree 6969441
get_FpX_mod 3387872
get_FpX_var 6952321
gisdouble 2995777
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 899736
gminsg 0
gmulgs 23859543
gmulgu 283360013
gsubgs 1731065
gtodouble 66253353
gtofp 257174550
gtomp 22428
gtos 85878136
gtou 100704
guncloneNULL 49840105
guncloneNULL_deep 1517868
gval 6237
hash_str 2781053
hash_str_len 31624582
icopy_avma 8055092810
idealchineseinit 5427
idealred 138807
identity_ZV 8120
identity_perm 3243281
identity_zv 3267643
inf_get_sign 1453155
inv_content 0
is_bigint 574372547
is_const_t 5000864300
is_extscalar_t 6904
is_intreal_t 9713036
is_matvec_t 743672184
is_noncalc_t 88514286
is_pm1 2217225108
is_qfb_t 0
is_rational_t 5016865
is_real_t 61900635
is_recursive_t 9112051684
is_scalar_t 403951583
is_universal_constant 326425086
is_vec_t 44042106
isint1 17994604
isintm1 6086923
isintzero 2848700596
ismpzero 9712931
isonstack 8357265783
killblock 1961625
leading_coeff 169346842
leafcopy_avma 593068899
lg_increase 440134246
lgcols 352733744
lgpol 2619111681
lincombii 38266063
locs_get_Lgenfil 1288
locs_get_Lsprk 193935
locs_get_cyc 52136
locs_get_famod 1288
locs_get_m_infty 209475
locs_get_mod 8225
logint 755031
matpascal 4683
matslice 16823623
mkcol 10654038
mkcol2 156967344
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33577
mkcols 40411
mkcomplex 92020835
mkerr 0
mkfrac 42556120
mkfraccopy 5006485
mkfracss 1209563
mkintmod 8066570
mkintmodu 1834
mkmat 4780850
mkmat2 33655528
mkmat22 50247673
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122313
mkmoo 108889
mkoo 1332040
mkpadic 2009
mkpolmod 3075564
mkqfb 27927973
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 68870948
mkvec2 214303292
mkvec2copy 114528
mkvec2s 220740
mkvec3 118678180
mkvec3s 524441
mkvec4 10156487
mkvec4s 21
mkvec5 15187577
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140340955
mkvecsmall2 256916668
mkvecsmall3 103249879
mkvecsmall4 18636966
mkvecsmall5 1718721
modpr_get_T 13866922
modpr_get_p 1887626
modpr_get_pr 31236249
mul_content 2657458
mul_denom 10753334
mulsubii 3892196
nbits2extraprec 1497095591
nbits2ndec 228
nbits2nlong 12773703
nbits2prec 189013487
nbrows 158338112
nchar2nlong 127842809
ndec2nbits 8270
ndec2nlong 41626
ndec2prec 33356
nfV_to_scalar_or_alg 26300
nf_get_G 304789
nf_get_M 21741493
nf_get_Tr 23348
nf_get_degree 71375608
nf_get_diff 4445
nf_get_disc 463575
nf_get_index 3711976
nf_get_invzk 9774508
nf_get_pol 98117921
nf_get_r1 23466270
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628823
nf_get_roundG 1748462
nf_get_sign 519601
nf_get_varn 1503769
nf_get_zk 4382
nf_get_zkden 5462059
nf_get_zkprimpart 5416238
normalize_frac 17566867
odd 2123482245
pari_calloc 48043
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
pari_err_DIM 718
pari_err_DOMAIN 2876
pari_err_FILE 0
pari_err_FILEDESC 36
pari_err_FLAG 98
pari_err_IMPL 539
pari_err_INV 20025
pari_err_IRREDPOL 63
pari_err_MAXPRIME 0
pari_err_MODULUS 1316
pari_err_OP 406
pari_err_OVERFLOW 156
pari_err_PACKAGE 0
pari_err_PREC 238
pari_err_PRIME 98
pari_err_PRIORITY 245
pari_err_ROOTS0 63
pari_err_SQRTN 7084
pari_err_TYPE 15370
pari_err_TYPE2 3493
pari_err_VAR 371
pari_free 487298229
pari_malloc 723401804
pari_realloc 1887
pari_realloc_ip 2345857
pari_stack_alloc 1005789821
pari_stack_base 1011656791
pari_stack_delete 5918063
pari_stack_init 6347616
pari_stack_new 910424741
pari_stack_pushp 5842
perm_conj 418299
perm_inv 3747413
perm_mul 80948232
perm_sqr 728
pol0_F2x 17356363
pol0_Flx 111647695
pol1_F2x 4769268
pol1_Flx 55727758
pol_0 27168603
pol_1 3752555
pol_x 3865073
pol_xn 2253495
pol_xnall 294
polx_F2x 1078890
polx_Flx 37500298
polx_zx 0
polxn_Flx 371
powIs 620095
powii 43130008
pr_get_e 16167195
pr_get_f 26444051
pr_get_gen 12072351
pr_get_p 92759866
pr_get_tau 49772992
pr_is_inert 17224211
pr_norm 1090459
prec2lg 4564606026
prec2nbits 106950427
prec2nbits_mul 581095
prec2ndec 9778
precdbl 476399
qfb_disc 18502534
qfb_disc3 4994912
qfb_is_qfi 64517558
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8149254021
rnf_get_absdegree 1392746
rnf_get_alpha 1428
rnf_get_degree 2506335
rnf_get_disc 357
rnf_get_idealdisc 1386
rnf_get_index 105
rnf_get_invzk 1225
rnf_get_k 1225
rnf_get_map 135659
rnf_get_nf 786086
rnf_get_nfdegree 21455
rnf_get_nfpol 255354
rnf_get_nfvarn 4886
rnf_get_nfzk 7245
rnf_get_pol 2845192
rnf_get_polabs 327628
rnf_get_ramified_primes 2849
rnf_get_varn 574
rnf_get_zk 4830
row 763876
row_i 987
rowcopy 204988
rowpermute 14758673
rowslice 79430026
rowslicepermute 234426
rowsplice 273
ser_isexactzero 11434317
shallowcopy 27896233
sqrfrac 4200801
sqrti 6612497
sqrtnr 2810636
sqrtr 87171469
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60068879
truecoef 0
trunc_safe 0
ulogint 2086135
upr_norm 346134
uutoQ 1602144
vec_append 3469005
vec_ei 1714702
vec_lengthen 18960
vec_prepend 313927
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4040774
veclast 9374240
vecmodii 0
vecmoduu 49784
vecpermute 21109482
vecreverse 697305
vecreverse_inplace 2605
vecslice 657213188
vecslicepermute 2858328
vecsmall_append 4114719
vecsmall_coincidence 0
vecsmall_concat 1464643
vecsmall_copy 7341175
vecsmall_ei 585112
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1177304
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75746
vecsmall_to_col 7925095
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78751862
vecsmalltrunc_append 100731284
vecsmalltrunc_init 241688526
vecsplice 385006
vectrunc_append 15855536
vectrunc_append_batch 9667
vectrunc_init 11768907
zc_to_ZC 7910547
zero_F2m 0
zero_F2m_copy 845265
zero_F2v 3656617
zero_F2x 1181
zero_Flm 2831012
zero_Flm_copy 238304
zero_Flv 61990716
zero_Flx 3255572
zero_zm 0
zero_zv 39510685
zero_zx 0
zerocol 125176496
zeromat 108996
zeromatcopy 14377964
zeropadic 857636
zeropadic_shallow 17149
zeropol 12889495
zeroser 139013
zerovec 29348343
zerovec_block 29654
zm_copy 0
zm_row 0
zm_to_zxV 0
zm_transpose 266
znstar_get_N 38658713
znstar_get_U 176107
znstar_get_Ui 46788
znstar_get_conreycyc 7982108
znstar_get_conreygen 3290526
znstar_get_cyc 262088
znstar_get_faN 7334819
znstar_get_gen 16150
znstar_get_no 14
znstar_get_pe 2869063
zv_copy 1687984
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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