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 30792-987d9c52f6) Lines: 1422 1535 92.6 %
Date: 2026-04-09 09:26:26 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 8359294
F2m_copy 200665
F2m_flip 1554420
F2m_set 798
F2v_clear 12362076
F2v_coeff 664440230
F2v_copy 4487
F2v_ei 42
F2v_flip 1554420
F2v_set 104115362
F2v_to_F2x 38142
F2xX_shift 0
F2x_clear 12362072
F2x_coeff 670993673
F2x_copy 64565005
F2x_div 1570573
F2x_equal 4186531
F2x_equal1 2873739
F2x_flip 1554420
F2x_renormalize 127857580
F2x_set 129976987
F2xqX_div 33173
F3m_coeff 3255551
F3m_copy 0
F3m_set 0
Flm_copy 6434508
Flm_row 8743624
Flv_copy 2059153
Flx_constant 1091355
Flx_copy 175776461
Flx_div 1999812
Flx_div_pre 21706121
Flx_equal1 8196105
Flx_lead 1068135
Flx_mulu 1105430
FlxqX_div 0
FlxqX_div_pre 165413
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4692447
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582026
FpX_renormalize 147018186
Fp_add 183273616
Fp_addmul 11240306
Fp_center 77251079
Fp_center_i 18009197
Fp_div 15033758
Fp_divu 15128237
Fp_double 20782761
Fp_halve 247271
Fp_inv 23436100
Fp_invsafe 1097241
Fp_mul 203057005
Fp_muls 17780
Fp_mulu 66944972
Fp_neg 32667418
Fp_red 82930775
Fp_sqr 63499785
Fp_sub 200947134
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 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 445020
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 367932
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 3106009
Fq_to_FpXQ 73652
GENbinbase 918981187
QV_isscalar 54420659
Q_abs 8060988
Q_abs_shallow 120227
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619939
RgC_gtofp 34033809
RgC_gtomp 574
RgM_dimensions 9954919
RgM_fpnorml2 22653
RgM_gtofp 8257705
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22235221
RgV_gtofp 56
RgV_is_QV 141998
RgV_is_ZV 32095988
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210272
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102486901
RgX_div 6997261
RgX_equal_var 26880498
RgX_fpnorml2 61606
RgX_gtofp 7164005
RgX_is_QX 399938
RgX_is_ZX 22315665
RgX_is_monomial 1320104
RgX_is_rational 68158
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
RgX_to_RgV 140
Rg_col_ei 1451102
Rg_to_Fq 756
ZC_hnfrem 10697478
ZM_ZV_mod 610718
ZM_hnfrem 401384
ZM_lll 7117707
ZV_ZV_mod 8147207
ZV_dvd 23485
ZV_isscalar 23674780
ZV_to_zv 3211716
ZXQ_mul 2166242
ZXQ_sqr 960605
ZX_equal1 10488
ZX_is_monic 7319817
ZX_renormalize 157438068
Z_ispower 98
Z_issquare 509454
abgrp_get_cyc 12231201
abgrp_get_gen 1765028
abgrp_get_no 406737
absfrac 46991611
absfrac_shallow 28237
addmuliu 541572
addmuliu_inplace 59565011
affc_fixlg 249622
affgr 899594
bid_get_MOD 2157241
bid_get_U 3680213
bid_get_arch 41188
bid_get_archp 2397080
bid_get_cyc 5739788
bid_get_fact 2498909
bid_get_fact2 2201562
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804643
bid_get_ideal 72842
bid_get_mod 1521920
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157967
bin_copy 472873682
bit_accuracy 3144950644
bit_accuracy_mul 3175715
bit_prec 143394631
bnf_get_clgp 5375458
bnf_get_cyc 3686601
bnf_get_fu 25859
bnf_get_fu_nocheck 289087
bnf_get_gen 1680314
bnf_get_logfu 2874757
bnf_get_nf 9866317
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367774
bnf_get_tuN 282999
bnf_get_tuU 303581
bnr_get_bid 2046086
bnr_get_bnf 3710938
bnr_get_clgp 2830245
bnr_get_cyc 2522570
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399079
bnr_get_no 277489
both_odd 124033259
cbrtr 0
cbrtr_abs 0
cgetalloc 10136
cgetc 975459
cgiv 105478916
checkell_i 8103889
closure_arity 356421635
closure_codestr 305984195
closure_get_code 28
closure_get_data 305941499
closure_get_dbg 13660
closure_get_frame 14734914
closure_get_oper 305963197
closure_get_text 37150
closure_is_variadic 45934460
col_ei 5925232
coltrunc_init 740257
const_col 9730135
const_vec 34673344
const_vecsmall 18860581
constant_coeff 1441252
cxcompotor 18237724
cxnorm 94098477
cxtofp 9092955
cxtoreal 337206
cyc_get_expo 2757555
cyclic_perm 99932
dbllog2r 94327033
degpol 5522245507
div_content 58510
divsBIL 8239835452
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 11108722
ell_get_a3 12863759
ell_get_a4 10325140
ell_get_a6 10371100
ell_get_b2 7371404
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11018576
ell_get_c6 13474185
ell_get_disc 16815783
ell_get_j 2126269
ell_get_type 14945723
ell_is_inf 50157149
ellff_get_a4a6 551462
ellff_get_field 1790606
ellinf 913901
ellnf_get_bnf 119
ellnf_get_nf 2027226
equali1 1169268616
equalim1 139568280
err_get_compo 294
err_get_num 62596
gaddgs 123270507
gal_get_den 27866
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 246732052
gc_INT 4134543254
gc_INT_affii 11569941
gc_all 102550912
gc_leaf 1163677715
gc_slice 2211137
gc_upto 1971311476
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 761922
gdivsg 559709
gen_I 1268859
gener_Fq_local 29945
gequalgs 29176
get_F2x_degree 1928542
get_F2x_mod 3307656
get_F2x_var 2168634
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82920292
get_Flx_mod 25497870
get_Flx_var 68243227
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 6969265
get_FpX_mod 3387858
get_FpX_var 6952139
gisdouble 2995985
gmax_shallow 13510225
gmaxsg 0
gmin_shallow 898175
gminsg 0
gmulgs 23866722
gmulgu 283360012
gsubgs 1731927
gtodouble 66248235
gtofp 257178267
gtomp 22428
gtos 85865620
gtou 100713
guncloneNULL 49826333
guncloneNULL_deep 1504825
gval 6230
hash_str 2761454
hash_str_len 31657130
icopy_avma 8049756990
idealchineseinit 5427
idealred 138812
identity_ZV 8120
identity_perm 3243457
identity_zv 3267820
inf_get_sign 1453247
inv_content 0
is_bigint 574367069
is_const_t 5002346461
is_extscalar_t 6904
is_intreal_t 9702626
is_matvec_t 742838362
is_noncalc_t 88515666
is_pm1 2217078405
is_qfb_t 0
is_rational_t 5017642
is_real_t 61900626
is_recursive_t 9103904431
is_scalar_t 403499072
is_universal_constant 326488554
is_vec_t 43938937
isint1 17994129
isintm1 6086540
isintzero 2848183410
ismpzero 9702521
isonstack 8358533043
killblock 1956485
leading_coeff 169336200
leafcopy_avma 593221772
lg_increase 432568234
lgcols 352677334
lgpol 2627581540
lincombii 38276434
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 755022
matpascal 4683
matslice 16825000
mkcol 10653350
mkcol2 156948096
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33587
mkcols 40411
mkcomplex 92002685
mkerr 0
mkfrac 41927135
mkfraccopy 4999563
mkfracss 1209563
mkintmod 8066791
mkintmodu 1834
mkmat 4780137
mkmat2 33665887
mkmat22 50254015
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122306
mkmoo 108899
mkoo 1332133
mkpadic 2009
mkpolmod 3075534
mkqfb 27928323
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69316600
mkvec2 213008306
mkvec2copy 114530
mkvec2s 220726
mkvec3 121992388
mkvec3s 524441
mkvec4 10150190
mkvec4s 21
mkvec5 15187634
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140269726
mkvecsmall2 256939114
mkvecsmall3 103246175
mkvecsmall4 18648356
mkvecsmall5 1718729
modpr_get_T 13867087
modpr_get_p 1887627
modpr_get_pr 31236522
mul_content 2657491
mul_denom 10709743
mulsubii 3893917
nbits2extraprec 1497756770
nbits2ndec 228
nbits2nlong 12748674
nbits2prec 189003437
nbrows 158274133
nchar2nlong 127922610
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304796
nf_get_M 21745415
nf_get_Tr 23279
nf_get_degree 71376341
nf_get_diff 4445
nf_get_disc 463508
nf_get_index 3711997
nf_get_invzk 9774678
nf_get_pol 98120665
nf_get_r1 23465861
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628814
nf_get_roundG 1748479
nf_get_sign 519601
nf_get_varn 1503745
nf_get_zk 4382
nf_get_zkden 5462099
nf_get_zkprimpart 5416317
normalize_frac 17311193
odd 2123479879
pari_calloc 47756
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 487238524
pari_malloc 723346350
pari_realloc 1880
pari_realloc_ip 2358577
pari_stack_alloc 1006270223
pari_stack_base 1012151433
pari_stack_delete 5882215
pari_stack_init 6378734
pari_stack_new 910980171
pari_stack_pushp 5821
perm_conj 418299
perm_inv 3747483
perm_mul 80956007
perm_sqr 728
pol0_F2x 17349480
pol0_Flx 111631125
pol1_F2x 4768322
pol1_Flx 55723537
pol_0 27123896
pol_1 3752502
pol_x 3863970
pol_xn 2252834
pol_xnall 294
polx_F2x 1078837
polx_Flx 37492333
polx_zx 0
polxn_Flx 371
powIs 596435
powii 43130047
pr_get_e 16167321
pr_get_f 26444267
pr_get_gen 12072491
pr_get_p 92760992
pr_get_tau 49773664
pr_is_inert 17224354
pr_norm 1090513
prec2lg 4562606972
prec2nbits 106943897
prec2nbits_mul 581095
prec2ndec 9778
precdbl 476361
qfb_disc 18502553
qfb_disc3 4995096
qfb_is_qfi 64536605
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8148974102
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 763888
row_i 987
rowcopy 204988
rowpermute 14759307
rowslice 79461146
rowslicepermute 234474
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27896618
sqrfrac 4156032
sqrti 6612807
sqrtnr 2810675
sqrtr 86931732
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60071797
truecoef 0
trunc_safe 0
ulogint 2092256
upr_norm 346135
uutoQ 1602144
vec_append 3468944
vec_ei 1714745
vec_lengthen 18960
vec_prepend 313926
vec_setconst 0
vec_shorten 11556
vec_to_vecsmall 4039411
veclast 9374223
vecmodii 0
vecmoduu 49784
vecpermute 21110871
vecreverse 697305
vecreverse_inplace 2605
vecslice 657368417
vecslicepermute 2858739
vecsmall_append 4114704
vecsmall_coincidence 0
vecsmall_concat 1464644
vecsmall_copy 7341110
vecsmall_ei 585172
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043245
vecsmall_max 1177228
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75752
vecsmall_to_col 7925105
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78759525
vecsmalltrunc_append 100723328
vecsmalltrunc_init 239458675
vecsplice 384993
vectrunc_append 15853773
vectrunc_append_batch 9667
vectrunc_init 11766316
zc_to_ZC 7910560
zero_F2m 0
zero_F2m_copy 845292
zero_F2v 3656641
zero_F2x 1181
zero_Flm 2831140
zero_Flm_copy 238310
zero_Flv 61988019
zero_Flx 3255725
zero_zm 0
zero_zv 39509461
zero_zx 0
zerocol 125154586
zeromat 108978
zeromatcopy 14377820
zeropadic 857502
zeropadic_shallow 17150
zeropol 12867617
zeroser 138992
zerovec 29348385
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 1687903
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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