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
F2m_coeff 8363540
F2m_copy 200669
F2m_flip 1554420
F2m_set 798
F2v_clear 12362248
F2v_coeff 664444707
F2v_copy 4487
F2v_ei 42
F2v_flip 1554420
F2v_set 104116171
F2v_to_F2x 38085
F2xX_shift 0
F2x_clear 12362241
F2x_coeff 670971821
F2x_copy 64555459
F2x_div 1570628
F2x_equal 4187881
F2x_equal1 2873842
F2x_flip 1554420
F2x_renormalize 127858582
F2x_set 129973175
F2xqX_div 33173
F3m_coeff 3255656
F3m_copy 0
F3m_set 0
Flm_copy 6434538
Flm_row 8743421
Flv_copy 2059085
Flx_constant 1091269
Flx_copy 175792917
Flx_div 1999793
Flx_div_pre 21707279
Flx_equal1 8196239
Flx_lead 1068327
Flx_mulu 1105458
FlxqX_div 0
FlxqX_div_pre 165417
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4692190
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5581989
FpX_renormalize 147007319
Fp_add 183297400
Fp_addmul 11244745
Fp_center 77250406
Fp_center_i 17993656
Fp_div 15033932
Fp_divu 15128396
Fp_double 20785579
Fp_halve 247271
Fp_inv 23435986
Fp_invsafe 1097248
Fp_mul 203053456
Fp_muls 17780
Fp_mulu 66391439
Fp_neg 32666729
Fp_red 82931069
Fp_sqr 63554451
Fp_sub 200962683
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 572203
FqX_Fq_mul 427300
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 445023
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 367935
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 3106308
Fq_to_FpXQ 73652
GENbinbase 919000992
QV_isscalar 54420256
Q_abs 8060996
Q_abs_shallow 120234
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619945
RgC_gtofp 34033966
RgC_gtomp 574
RgM_dimensions 9955032
RgM_fpnorml2 22655
RgM_gtofp 8258017
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22235777
RgV_gtofp 56
RgV_is_QV 141999
RgV_is_ZV 32095992
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210273
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102487120
RgX_div 6997261
RgX_equal_var 26880496
RgX_fpnorml2 61609
RgX_gtofp 7163966
RgX_is_QX 399938
RgX_is_ZX 22315705
RgX_is_monomial 1320028
RgX_is_rational 68157
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
RgX_to_RgV 140
Rg_col_ei 1451094
Rg_to_Fq 756
ZC_hnfrem 10697449
ZM_ZV_mod 610636
ZM_hnfrem 401437
ZM_lll 7117909
ZV_ZV_mod 8147098
ZV_dvd 23485
ZV_isscalar 23674896
ZV_to_zv 3211715
ZXQ_mul 2166110
ZXQ_sqr 960517
ZX_equal1 10488
ZX_is_monic 7319817
ZX_renormalize 157442087
Z_ispower 98
Z_issquare 509450
abgrp_get_cyc 12231244
abgrp_get_gen 1765028
abgrp_get_no 406736
absfrac 46991278
absfrac_shallow 28237
addmuliu 541554
addmuliu_inplace 59555498
affc_fixlg 249620
affgr 899594
bid_get_MOD 2157255
bid_get_U 3680232
bid_get_arch 41188
bid_get_archp 2397113
bid_get_cyc 5739829
bid_get_fact 2498936
bid_get_fact2 2201578
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804673
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157975
bin_copy 472879719
bit_accuracy 3144818798
bit_accuracy_mul 3175715
bit_prec 143393349
bnf_get_clgp 5375465
bnf_get_cyc 3686611
bnf_get_fu 25859
bnf_get_fu_nocheck 289094
bnf_get_gen 1680320
bnf_get_logfu 2874759
bnf_get_nf 9866314
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367768
bnf_get_tuN 283000
bnf_get_tuU 303576
bnr_get_bid 2046096
bnr_get_bnf 3710940
bnr_get_clgp 2830224
bnr_get_cyc 2522559
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77117
bnr_get_nf 1399070
bnr_get_no 277490
both_odd 124027150
cbrtr 0
cbrtr_abs 0
cgetalloc 10136
cgetc 975457
cgiv 105475663
checkell_i 8103979
closure_arity 356405523
closure_codestr 305981913
closure_get_code 28
closure_get_data 305935046
closure_get_dbg 13660
closure_get_frame 14734915
closure_get_oper 305959848
closure_get_text 37150
closure_is_variadic 45930815
col_ei 5925253
coltrunc_init 740257
const_col 9730125
const_vec 34674216
const_vecsmall 18860884
constant_coeff 1441250
cxcompotor 18239625
cxnorm 94098935
cxtofp 9094002
cxtoreal 337204
cyc_get_expo 2757553
cyclic_perm 99932
dbllog2r 94330183
degpol 5520096017
div_content 58511
divsBIL 8240235397
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 17049192
ell_get_a2 11108719
ell_get_a3 12863758
ell_get_a4 10325137
ell_get_a6 10371097
ell_get_b2 7371406
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11018743
ell_get_c6 13474406
ell_get_disc 16815746
ell_get_j 2126269
ell_get_type 14946107
ell_is_inf 50180303
ellff_get_a4a6 551458
ellff_get_field 1790597
ellinf 913878
ellnf_get_bnf 119
ellnf_get_nf 2027234
equali1 1169275962
equalim1 139568061
err_get_compo 294
err_get_num 62596
gaddgs 123270556
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80413
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 246721815
gc_INT 4133080708
gc_INT_affii 11568448
gc_all 102551662
gc_leaf 1162498468
gc_slice 2211175
gc_upto 1971346685
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 761918
gdivsg 559709
gen_I 1268869
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928514
get_F2x_mod 3307691
get_F2x_var 2168598
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82639817
get_Flx_mod 25499063
get_Flx_var 68244741
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 6969247
get_FpX_mod 3387852
get_FpX_var 6951957
gisdouble 2995982
gmax_shallow 13510228
gmaxsg 0
gmin_shallow 898179
gminsg 0
gmulgs 23856643
gmulgu 283360013
gsubgs 1731939
gtodouble 66251530
gtofp 257166208
gtomp 22428
gtos 85865502
gtou 100710
guncloneNULL 49835227
guncloneNULL_deep 1514679
gval 6230
hash_str 2757673
hash_str_len 31655919
icopy_avma 8049762160
idealchineseinit 5427
idealred 138819
identity_ZV 8120
identity_perm 3243128
identity_zv 3267491
inf_get_sign 1453220
inv_content 0
is_bigint 574367222
is_const_t 5002627421
is_extscalar_t 6904
is_intreal_t 9702651
is_matvec_t 742779822
is_noncalc_t 88515551
is_pm1 2216497384
is_qfb_t 0
is_rational_t 5017670
is_real_t 61900626
is_recursive_t 9104889981
is_scalar_t 403470841
is_universal_constant 326509044
is_vec_t 43952768
isint1 17987225
isintm1 6086562
isintzero 2848061193
ismpzero 9702544
isonstack 8356054293
killblock 1959387
leading_coeff 169335032
leafcopy_avma 593382378
lg_increase 437136454
lgcols 352669422
lgpol 2625922103
lincombii 38274098
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 755023
matpascal 4683
matslice 16824197
mkcol 10653336
mkcol2 156922015
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33590
mkcols 40411
mkcomplex 92016275
mkerr 0
mkfrac 41925412
mkfraccopy 4999490
mkfracss 1209563
mkintmod 8066828
mkintmodu 1834
mkmat 4780165
mkmat2 33666691
mkmat22 50250393
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122296
mkmoo 108901
mkoo 1332079
mkpadic 2009
mkpolmod 3075552
mkqfb 27928809
mkquad 69118
mkrfrac 698437
mkrfraccopy 14
mkvec 69328514
mkvec2 213210056
mkvec2copy 114532
mkvec2s 220726
mkvec3 121145631
mkvec3s 524441
mkvec4 10150173
mkvec4s 21
mkvec5 15187726
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140265337
mkvecsmall2 256955497
mkvecsmall3 103251905
mkvecsmall4 18652635
mkvecsmall5 1718714
modpr_get_T 13867121
modpr_get_p 1887627
modpr_get_pr 31236600
mul_content 2657504
mul_denom 10709727
mulsubii 3893664
nbits2extraprec 1497828470
nbits2ndec 228
nbits2nlong 12748720
nbits2prec 189004191
nbrows 158272172
nchar2nlong 127921746
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304834
nf_get_M 21745465
nf_get_Tr 23277
nf_get_degree 71376788
nf_get_diff 4445
nf_get_disc 463515
nf_get_index 3712017
nf_get_invzk 9774778
nf_get_pol 98120370
nf_get_r1 23465910
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628872
nf_get_roundG 1748520
nf_get_sign 519600
nf_get_varn 1503771
nf_get_zk 4382
nf_get_zkden 5462177
nf_get_zkprimpart 5416334
normalize_frac 17310509
odd 2123189074
pari_calloc 47770
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 487251099
pari_malloc 723347040
pari_realloc 1880
pari_realloc_ip 2358199
pari_stack_alloc 1006378860
pari_stack_base 1012223081
pari_stack_delete 5905129
pari_stack_init 6379055
pari_stack_new 911054407
pari_stack_pushp 5821
perm_conj 418299
perm_inv 3747368
perm_mul 80948126
perm_sqr 728
pol0_F2x 17346978
pol0_Flx 111624461
pol1_F2x 4768041
pol1_Flx 55725984
pol_0 27123703
pol_1 3752462
pol_x 3860488
pol_xn 2252825
pol_xnall 294
polx_F2x 1078905
polx_Flx 37494500
polx_zx 0
polxn_Flx 371
powIs 596435
powii 43130078
pr_get_e 16167274
pr_get_f 26444483
pr_get_gen 12072712
pr_get_p 92760824
pr_get_tau 49773417
pr_is_inert 17224351
pr_norm 1090560
prec2lg 4561052920
prec2nbits 106945170
prec2nbits_mul 581096
prec2ndec 9778
precdbl 476373
qfb_disc 18502493
qfb_disc3 4995364
qfb_is_qfi 64519753
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8148867491
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 763871
row_i 987
rowcopy 204988
rowpermute 14758548
rowslice 79443725
rowslicepermute 234506
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27896549
sqrfrac 4151002
sqrti 6612747
sqrtnr 2810714
sqrtr 86931995
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60072133
truecoef 0
trunc_safe 0
ulogint 2074976
upr_norm 346136
uutoQ 1602144
vec_append 3468948
vec_ei 1714748
vec_lengthen 18960
vec_prepend 313930
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039411
veclast 9374228
vecmodii 0
vecmoduu 49784
vecpermute 21110969
vecreverse 697304
vecreverse_inplace 2605
vecslice 657194581
vecslicepermute 2858741
vecsmall_append 4114722
vecsmall_coincidence 0
vecsmall_concat 1464651
vecsmall_copy 7341074
vecsmall_ei 585158
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043253
vecsmall_max 1177284
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75754
vecsmall_to_col 7925259
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78751825
vecsmalltrunc_append 100797486
vecsmalltrunc_init 239949215
vecsplice 385001
vectrunc_append 15854761
vectrunc_append_batch 9667
vectrunc_init 11765924
zc_to_ZC 7910713
zero_F2m 0
zero_F2m_copy 845297
zero_F2v 3656713
zero_F2x 1181
zero_Flm 2830813
zero_Flm_copy 238314
zero_Flv 61987087
zero_Flx 3255204
zero_zm 0
zero_zv 39509035
zero_zx 0
zerocol 125156532
zeromat 109008
zeromatcopy 14378300
zeropadic 857377
zeropadic_shallow 17150
zeropol 12867426
zeroser 138992
zerovec 29348334
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 1687818
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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