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 30775-9d8a55740a) Lines: 1421 1535 92.6 %
Date: 2026-04-05 09:26:48 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 8359551
F2m_copy 200668
F2m_flip 1554550
F2m_set 798
F2v_clear 12362273
F2v_coeff 664441705
F2v_copy 4487
F2v_ei 42
F2v_flip 1554550
F2v_set 104115626
F2v_to_F2x 38152
F2xX_shift 0
F2x_clear 12362257
F2x_coeff 671059616
F2x_copy 64683040
F2x_div 1572797
F2x_equal 4196637
F2x_equal1 2873765
F2x_flip 1554550
F2x_renormalize 127828302
F2x_set 129976127
F2xqX_div 33173
F3m_coeff 3255554
F3m_copy 0
F3m_set 0
Flm_copy 6434393
Flm_row 8743690
Flv_copy 2059188
Flx_constant 1091708
Flx_copy 175731337
Flx_div 1999806
Flx_div_pre 21700565
Flx_equal1 8196005
Flx_lead 1067987
Flx_mulu 1105485
FlxqX_div 0
FlxqX_div_pre 165415
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4691625
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5581909
FpX_renormalize 147014547
Fp_add 183408432
Fp_addmul 11273575
Fp_center 77321742
Fp_center_i 18045883
Fp_div 15034305
Fp_divu 15128837
Fp_double 20897667
Fp_halve 247271
Fp_inv 23435990
Fp_invsafe 1097238
Fp_mul 203147318
Fp_muls 17780
Fp_mulu 67505787
Fp_neg 32670363
Fp_red 82929633
Fp_sqr 64070888
Fp_sub 202055811
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 572191
FqX_Fq_mul 427281
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38569
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 445022
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 367936
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 3106385
Fq_to_FpXQ 73652
GENbinbase 918983400
QV_isscalar 54419240
Q_abs 8060919
Q_abs_shallow 120244
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619945
RgC_gtofp 34033163
RgC_gtomp 574
RgM_dimensions 9954571
RgM_fpnorml2 22655
RgM_gtofp 8257472
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22235135
RgV_gtofp 56
RgV_is_QV 142002
RgV_is_ZV 32095986
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210270
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102486821
RgX_div 6997261
RgX_equal_var 26880486
RgX_fpnorml2 61608
RgX_gtofp 7164005
RgX_is_QX 399940
RgX_is_ZX 22315497
RgX_is_monomial 1320038
RgX_is_rational 68159
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
RgX_to_RgV 140
Rg_col_ei 1451025
Rg_to_Fq 756
ZC_hnfrem 10697391
ZM_ZV_mod 610685
ZM_hnfrem 401397
ZM_lll 7117544
ZV_ZV_mod 8147069
ZV_dvd 23485
ZV_isscalar 23675026
ZV_to_zv 3211716
ZXQ_mul 2166216
ZXQ_sqr 960614
ZX_equal1 10488
ZX_is_monic 7319846
ZX_renormalize 157436871
Z_ispower 98
Z_issquare 509439
abgrp_get_cyc 12231170
abgrp_get_gen 1765035
abgrp_get_no 406722
absfrac 46991071
absfrac_shallow 28237
addmuliu 541644
addmuliu_inplace 59557192
affc_fixlg 249622
affgr 899594
bid_get_MOD 2157246
bid_get_U 3680222
bid_get_arch 41188
bid_get_archp 2397077
bid_get_cyc 5739775
bid_get_fact 2498917
bid_get_fact2 2201565
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804626
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157967
bin_copy 472871353
bit_accuracy 3144838394
bit_accuracy_mul 3175715
bit_prec 143389169
bnf_get_clgp 5375484
bnf_get_cyc 3686614
bnf_get_fu 25858
bnf_get_fu_nocheck 289083
bnf_get_gen 1680322
bnf_get_logfu 2874749
bnf_get_nf 9866286
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367777
bnf_get_tuN 282991
bnf_get_tuU 303571
bnr_get_bid 2046088
bnr_get_bnf 3710944
bnr_get_clgp 2830213
bnr_get_cyc 2522541
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399078
bnr_get_no 277488
both_odd 123887505
cbrtr 0
cbrtr_abs 0
cgetalloc 10136
cgetc 975459
cgiv 105472972
checkell_i 8103986
closure_arity 356401105
closure_codestr 305960906
closure_get_code 28
closure_get_data 305925452
closure_get_dbg 13660
closure_get_frame 14734816
closure_get_oper 305946805
closure_get_text 37150
closure_is_variadic 45930449
col_ei 5925252
coltrunc_init 740257
const_col 9730066
const_vec 34669253
const_vecsmall 18860816
constant_coeff 1441247
cxcompotor 18236946
cxnorm 94097244
cxtofp 9092703
cxtoreal 337206
cyc_get_expo 2757538
cyclic_perm 99932
dbllog2r 94327395
degpol 5521827618
div_content 58512
divsBIL 8237056026
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 17049197
ell_get_a2 11108730
ell_get_a3 12863764
ell_get_a4 10325148
ell_get_a6 10371108
ell_get_b2 7371401
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11018437
ell_get_c6 13474093
ell_get_disc 16815690
ell_get_j 2126269
ell_get_type 14945978
ell_is_inf 50199614
ellff_get_a4a6 551465
ellff_get_field 1790620
ellinf 913934
ellnf_get_bnf 119
ellnf_get_nf 2027258
equali1 1169281396
equalim1 139567808
err_get_compo 294
err_get_num 62595
gaddgs 123270543
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80414
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 246721114
gc_INT 4134413664
gc_INT_affii 11569878
gc_all 102551520
gc_leaf 1164394865
gc_slice 2211122
gc_upto 1971391972
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 761921
gdivsg 559710
gen_I 1268853
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928666
get_F2x_mod 3307698
get_F2x_var 2168805
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 83153279
get_Flx_mod 25494213
get_Flx_var 68230159
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 6969176
get_FpX_mod 3387866
get_FpX_var 6951982
gisdouble 2995737
gmax_shallow 13510228
gmaxsg 0
gmin_shallow 898165
gminsg 0
gmulgs 23872946
gmulgu 283360013
gsubgs 1731929
gtodouble 66247539
gtofp 257180056
gtomp 22428
gtos 85865527
gtou 100708
guncloneNULL 49826656
guncloneNULL_deep 1506663
gval 6230
hash_str 2759564
hash_str_len 31655297
icopy_avma 8049906238
idealchineseinit 5427
idealred 138821
identity_ZV 8120
identity_perm 3243458
identity_zv 3267821
inf_get_sign 1453216
inv_content 0
is_bigint 574371029
is_const_t 5002850015
is_extscalar_t 6904
is_intreal_t 9702473
is_matvec_t 742783950
is_noncalc_t 88515153
is_pm1 2217126056
is_qfb_t 0
is_rational_t 5017671
is_real_t 61900630
is_recursive_t 9103531933
is_scalar_t 403468704
is_universal_constant 326512355
is_vec_t 43949259
isint1 17987140
isintm1 6086477
isintzero 2848464636
ismpzero 9702373
isonstack 8359078928
killblock 1956355
leading_coeff 169329727
leafcopy_avma 593835619
lg_increase 452461814
lgcols 352678338
lgpol 2624970620
lincombii 38276305
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 755019
matpascal 4683
matslice 16825195
mkcol 10653383
mkcol2 156970340
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33580
mkcols 40411
mkcomplex 91994052
mkerr 0
mkfrac 41927825
mkfraccopy 4999610
mkfracss 1209562
mkintmod 8066750
mkintmodu 1834
mkmat 4779985
mkmat2 33665677
mkmat22 50256636
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122299
mkmoo 108903
mkoo 1332071
mkpadic 2009
mkpolmod 3075533
mkqfb 27928139
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69365459
mkvec2 215734798
mkvec2copy 114534
mkvec2s 220729
mkvec3 122720061
mkvec3s 524441
mkvec4 10150255
mkvec4s 21
mkvec5 15187501
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140282816
mkvecsmall2 256941707
mkvecsmall3 103247504
mkvecsmall4 18656424
mkvecsmall5 1718701
modpr_get_T 13867104
modpr_get_p 1887626
modpr_get_pr 31236544
mul_content 2657339
mul_denom 10709670
mulsubii 3893738
nbits2extraprec 1497509238
nbits2ndec 228
nbits2nlong 12753339
nbits2prec 188998518
nbrows 158270451
nchar2nlong 127920828
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304784
nf_get_M 21745545
nf_get_Tr 23272
nf_get_degree 71375373
nf_get_diff 4445
nf_get_disc 463516
nf_get_index 3712012
nf_get_invzk 9774585
nf_get_pol 98118155
nf_get_r1 23466057
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628818
nf_get_roundG 1748473
nf_get_sign 519601
nf_get_varn 1503731
nf_get_zk 4382
nf_get_zkden 5462091
nf_get_zkprimpart 5416200
normalize_frac 17311579
odd 2125333441
pari_calloc 47700
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 487231246
pari_malloc 723317506
pari_realloc 1880
pari_realloc_ip 2359400
pari_stack_alloc 1006285637
pari_stack_base 1012101531
pari_stack_delete 5876941
pari_stack_init 6378852
pari_stack_new 910962461
pari_stack_pushp 5821
perm_conj 418299
perm_inv 3747433
perm_mul 80956443
perm_sqr 728
pol0_F2x 17368272
pol0_Flx 111640106
pol1_F2x 4769418
pol1_Flx 55713796
pol_0 27123736
pol_1 3752526
pol_x 3860455
pol_xn 2252824
pol_xnall 294
polx_F2x 1079763
polx_Flx 37489078
polx_zx 0
polxn_Flx 371
powIs 596435
powii 43130023
pr_get_e 16166974
pr_get_f 26443447
pr_get_gen 12072170
pr_get_p 92759524
pr_get_tau 49772265
pr_is_inert 17223788
pr_norm 1090423
prec2lg 4565231964
prec2nbits 106944194
prec2nbits_mul 581097
prec2ndec 9778
precdbl 476360
qfb_disc 18502470
qfb_disc3 4995022
qfb_is_qfi 64523864
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8146632541
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 763904
row_i 987
rowcopy 204988
rowpermute 14759419
rowslice 79461913
rowslicepermute 234676
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27896530
sqrfrac 4151003
sqrti 6612797
sqrtnr 2810615
sqrtr 86929962
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60061823
truecoef 0
trunc_safe 0
ulogint 2105378
upr_norm 346134
uutoQ 1602144
vec_append 3468964
vec_ei 1714740
vec_lengthen 18960
vec_prepend 313919
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039415
veclast 9374228
vecmodii 0
vecmoduu 49784
vecpermute 21112724
vecreverse 697305
vecreverse_inplace 2605
vecslice 657379748
vecslicepermute 2859493
vecsmall_append 4114710
vecsmall_coincidence 0
vecsmall_concat 1464652
vecsmall_copy 7341184
vecsmall_ei 585108
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043248
vecsmall_max 1177270
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75752
vecsmall_to_col 7925455
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78760004
vecsmalltrunc_append 100835959
vecsmalltrunc_init 244859004
vecsplice 384999
vectrunc_append 15856403
vectrunc_append_batch 9667
vectrunc_init 11768612
zc_to_ZC 7910911
zero_F2m 0
zero_F2m_copy 845294
zero_F2v 3656668
zero_F2x 1181
zero_Flm 2831212
zero_Flm_copy 238308
zero_Flv 61993082
zero_Flx 3255709
zero_zm 0
zero_zv 39512615
zero_zx 0
zerocol 125153085
zeromat 108966
zeromatcopy 14377549
zeropadic 857676
zeropadic_shallow 17150
zeropol 12867509
zeroser 138992
zerovec 29348347
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 1687923
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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