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 30735-65f72320ad) Lines: 1423 1535 92.7 %
Date: 2026-03-16 09:23:47 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 8156502
F2m_copy 200420
F2m_flip 1554447
F2m_set 798
F2v_clear 12353729
F2v_coeff 661438390
F2v_copy 4487
F2v_ei 42
F2v_flip 1554447
F2v_set 101430431
F2v_to_F2x 37832
F2xX_shift 0
F2x_clear 12353732
F2x_coeff 667908093
F2x_copy 59737132
F2x_div 1570646
F2x_equal 4667245
F2x_equal1 2873745
F2x_flip 1554447
F2x_renormalize 112548142
F2x_set 123275596
F2xqX_div 33173
F3m_coeff 3255602
F3m_copy 0
F3m_set 0
Flm_copy 6434622
Flm_row 8743475
Flv_copy 2554960
Flx_constant 334140
Flx_copy 173127768
Flx_div 1999859
Flx_div_pre 21691483
Flx_equal1 8195672
Flx_lead 977859
Flx_mulu 1105432
FlxqX_div 0
FlxqX_div_pre 165419
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4693216
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582073
FpX_renormalize 145674893
Fp_add 180917711
Fp_addmul 11207957
Fp_center 77374921
Fp_center_i 18042767
Fp_div 15034347
Fp_divu 15128753
Fp_double 20763839
Fp_halve 247271
Fp_inv 23436357
Fp_invsafe 1097249
Fp_mul 200765139
Fp_muls 17780
Fp_mulu 70009998
Fp_neg 31472363
Fp_red 82931352
Fp_sqr 63633024
Fp_sub 202756325
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 572194
FqX_Fq_mul 427293
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38566
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 445021
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 367933
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 3106626
Fq_to_FpXQ 73652
GENbinbase 915830870
QV_isscalar 54420784
Q_abs 8059632
Q_abs_shallow 120236
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619947
RgC_gtofp 34034518
RgC_gtomp 574
RgM_dimensions 9954215
RgM_fpnorml2 22655
RgM_gtofp 8257684
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22234425
RgV_gtofp 56
RgV_is_QV 141999
RgV_is_ZV 32095293
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210266
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2667901
RgX_copy 102480423
RgX_div 6996400
RgX_equal_var 26880175
RgX_fpnorml2 61607
RgX_gtofp 7151370
RgX_is_QX 399947
RgX_is_ZX 22311299
RgX_is_monomial 1318337
RgX_is_rational 68157
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479435
RgX_shift_inplace_init 479435
RgX_to_RgV 140
Rg_col_ei 1451060
Rg_to_Fq 756
ZC_hnfrem 10697466
ZM_ZV_mod 610686
ZM_hnfrem 401452
ZM_lll 7117683
ZV_ZV_mod 8147191
ZV_dvd 23485
ZV_isscalar 23675524
ZV_to_zv 3211716
ZXQ_mul 2166127
ZXQ_sqr 960523
ZX_equal1 10488
ZX_is_monic 7319850
ZX_renormalize 155007912
Z_ispower 98
Z_issquare 509454
abgrp_get_cyc 12231263
abgrp_get_gen 1765038
abgrp_get_no 406737
absfrac 46516076
absfrac_shallow 28237
addmuliu 541491
addmuliu_inplace 59563476
affc_fixlg 249623
affgr 899594
bid_get_MOD 2157255
bid_get_U 3680230
bid_get_arch 41188
bid_get_archp 2397118
bid_get_cyc 5739824
bid_get_fact 2498942
bid_get_fact2 2201578
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804674
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157977
bin_copy 471299887
bit_accuracy 3128154244
bit_accuracy_mul 3175715
bit_prec 143298939
bnf_get_clgp 5375473
bnf_get_cyc 3686608
bnf_get_fu 25859
bnf_get_fu_nocheck 289092
bnf_get_gen 1680326
bnf_get_logfu 2874754
bnf_get_nf 9866320
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367774
bnf_get_tuN 283002
bnf_get_tuU 303583
bnr_get_bid 2046097
bnr_get_bnf 3710958
bnr_get_clgp 2830245
bnr_get_cyc 2522574
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399074
bnr_get_no 277490
both_odd 124170407
cbrtr 0
cbrtr_abs 0
cgetalloc 10115
cgetc 975457
cgiv 105473052
checkell_i 5593290
closure_arity 356461533
closure_codestr 306074969
closure_get_code 28
closure_get_data 306014256
closure_get_dbg 13653
closure_get_frame 14720369
closure_get_oper 306048604
closure_get_text 37136
closure_is_variadic 45910967
col_ei 5925388
coltrunc_init 740257
const_col 9730113
const_vec 34652891
const_vecsmall 18747450
constant_coeff 1441254
cxcompotor 18213036
cxnorm 91205540
cxtofp 9080611
cxtoreal 337204
cyc_get_expo 2757540
cyclic_perm 99911
dbllog2r 92844088
degpol 5500505129
div_content 58511
divsBIL 8106605476
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997075
ell_get_a2 7106186
ell_get_a3 8814043
ell_get_a4 8536727
ell_get_a6 10370965
ell_get_b2 7371019
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017986
ell_get_c6 13474394
ell_get_disc 16815009
ell_get_j 2126269
ell_get_type 12499077
ell_is_inf 49463816
ellff_get_a4a6 800021
ellff_get_field 2036872
ellinf 1208485
ellnf_get_bnf 119
ellnf_get_nf 2027236
equali1 1166228392
equalim1 139505783
err_get_compo 294
err_get_num 62581
gaddgs 123254013
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80416
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 245549464
gc_INT 4132816953
gc_INT_affii 11562862
gc_all 102397903
gc_leaf 1132501686
gc_slice 2205964
gc_upto 1944710671
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 761925
gdivsg 531592
gen_I 1268268
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1927960
get_F2x_mod 2489589
get_F2x_var 2534140
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82921541
get_Flx_mod 25499042
get_Flx_var 68376372
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 6968815
get_FpX_mod 3387807
get_FpX_var 6954666
gisdouble 2995996
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 877907
gminsg 0
gmulgs 23830660
gmulgu 283104681
gsubgs 1730184
gtodouble 60941905
gtofp 254467839
gtomp 22428
gtos 85855677
gtou 100669
guncloneNULL 49830231
guncloneNULL_deep 1512365
gval 6230
hash_str 2741930
hash_str_len 31636984
icopy_avma 8045042594
idealchineseinit 5427
idealred 138813
identity_ZV 8120
identity_perm 3243000
identity_zv 3267351
inf_get_sign 1453207
inv_content 0
is_bigint 571767267
is_const_t 4981754464
is_extscalar_t 6876
is_intreal_t 9585397
is_matvec_t 741342335
is_noncalc_t 88450735
is_pm1 2215854690
is_qfb_t 0
is_rational_t 5015378
is_real_t 61897670
is_recursive_t 9070539503
is_scalar_t 403350510
is_universal_constant 326756220
is_vec_t 43905425
isint1 17586883
isintm1 5711319
isintzero 2839130233
ismpzero 9585303
isonstack 8300150525
killblock 1960042
leading_coeff 171565657
leafcopy_avma 590387452
lg_increase 438298204
lgcols 352693670
lgpol 2608147562
lincombii 38280094
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 754942
matpascal 3983
matslice 16825932
mkcol 10652839
mkcol2 156981939
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33584
mkcols 40411
mkcomplex 91619014
mkerr 0
mkfrac 41640137
mkfraccopy 4999629
mkfracss 1209563
mkintmod 8061335
mkintmodu 1834
mkmat 4780109
mkmat2 33665678
mkmat22 50259516
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122331
mkmoo 108905
mkoo 1332061
mkpadic 2009
mkpolmod 3075552
mkqfb 27928167
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69643137
mkvec2 211390168
mkvec2copy 114529
mkvec2s 220377
mkvec3 121883355
mkvec3s 524441
mkvec4 10146638
mkvec4s 21
mkvec5 15186562
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131340446
mkvecsmall2 235100646
mkvecsmall3 103259102
mkvecsmall4 18686685
mkvecsmall5 1717583
modpr_get_T 13867110
modpr_get_p 1887627
modpr_get_pr 31236589
mul_content 2657528
mul_denom 10709743
mulsubii 3893892
nbits2extraprec 1458442127
nbits2ndec 228
nbits2nlong 12708781
nbits2prec 186166781
nbrows 158273109
nchar2nlong 127794682
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26299
nf_get_G 304789
nf_get_M 21746105
nf_get_Tr 23282
nf_get_degree 71377748
nf_get_diff 4445
nf_get_disc 463517
nf_get_index 3712031
nf_get_invzk 9774865
nf_get_pol 98122950
nf_get_r1 23466560
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628831
nf_get_roundG 1748468
nf_get_sign 519601
nf_get_varn 1503750
nf_get_zk 4382
nf_get_zkden 5462100
nf_get_zkprimpart 5416309
normalize_frac 17205922
odd 2119743409
pari_calloc 47609
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
pari_err_DIM 718
pari_err_DOMAIN 2869
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 485666386
pari_malloc 721737234
pari_realloc 1873
pari_realloc_ip 2351857
pari_stack_alloc 1006142840
pari_stack_base 1012028876
pari_stack_delete 5899821
pari_stack_init 6359085
pari_stack_new 910847753
pari_stack_pushp 5800
perm_conj 418299
perm_inv 3747366
perm_mul 80957328
perm_sqr 728
pol0_F2x 13222253
pol0_Flx 103132053
pol1_F2x 3947729
pol1_Flx 54901005
pol_0 25907632
pol_1 3750943
pol_x 3857894
pol_xn 2249927
pol_xnall 294
polx_F2x 1078754
polx_Flx 37495722
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130070
pr_get_e 16167404
pr_get_f 26444603
pr_get_gen 12072603
pr_get_p 92761618
pr_get_tau 49773881
pr_is_inert 17224348
pr_norm 1090533
prec2lg 4472281058
prec2nbits 103974043
prec2nbits_mul 581083
prec2ndec 9778
precdbl 475651
qfb_disc 18502525
qfb_disc3 4995004
qfb_is_qfi 64476647
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8015722299
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 763885
row_i 987
rowcopy 204988
rowpermute 14758127
rowslice 79472483
rowslicepermute 233459
rowsplice 273
ser_isexactzero 10120354
shallowcopy 27895950
sqrfrac 4148210
sqrti 6611436
sqrtnr 2810313
sqrtr 80382443
sstoQ 1097313
sturm 385
submulii 31985153
submuliu 7700
submuliu_inplace 60068286
truecoef 0
trunc_safe 0
ulogint 1967575
upr_norm 346134
uutoQ 1602144
vec_append 3469004
vec_ei 1714406
vec_lengthen 18960
vec_prepend 313920
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039442
veclast 9372769
vecmodii 0
vecmoduu 49784
vecpermute 21094181
vecreverse 697305
vecreverse_inplace 2605
vecslice 657580457
vecslicepermute 2854581
vecsmall_append 4114691
vecsmall_coincidence 0
vecsmall_concat 1464627
vecsmall_copy 5369029
vecsmall_ei 584789
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1164117
vecsmall_min 2352
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75754
vecsmall_to_col 7921683
vecsmall_to_vec 577021
vecsmall_to_vec_inplace 3304
vecsmallpermute 78761020
vecsmalltrunc_append 100812557
vecsmalltrunc_init 241161342
vecsplice 385012
vectrunc_append 15855049
vectrunc_append_batch 9667
vectrunc_init 11766795
zc_to_ZC 7907137
zero_F2m 0
zero_F2m_copy 845062
zero_F2v 3647787
zero_F2x 1181
zero_Flm 2831061
zero_Flm_copy 238318
zero_Flv 59731289
zero_Flx 1427066
zero_zm 0
zero_zv 37300686
zero_zx 0
zerocol 125143127
zeromat 108970
zeromatcopy 14377161
zeropadic 857467
zeropadic_shallow 17150
zeropol 12864844
zeroser 138992
zerovec 29344828
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 2183702
zv_to_ZV 568222
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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