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: 1422 1535 92.6 %
Date: 2026-03-11 09:24:10 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 8157482
F2m_copy 200427
F2m_flip 1554826
F2m_set 798
F2v_clear 12354548
F2v_coeff 661444258
F2v_copy 4487
F2v_ei 42
F2v_flip 1554826
F2v_set 101431466
F2v_to_F2x 37972
F2xX_shift 0
F2x_clear 12354534
F2x_coeff 668081818
F2x_copy 59756100
F2x_div 1572813
F2x_equal 4671585
F2x_equal1 2873724
F2x_flip 1554826
F2x_renormalize 112596120
F2x_set 123371250
F2xqX_div 33173
F3m_coeff 3255604
F3m_copy 0
F3m_set 0
Flm_copy 6434615
Flm_row 8743834
Flv_copy 2555026
Flx_constant 334143
Flx_copy 173134499
Flx_div 1999851
Flx_div_pre 21693927
Flx_equal1 8195691
Flx_lead 978597
Flx_mulu 1105486
FlxqX_div 0
FlxqX_div_pre 165409
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4693227
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582078
FpX_renormalize 145680125
Fp_add 181091183
Fp_addmul 11251134
Fp_center 77387851
Fp_center_i 18044926
Fp_div 15035060
Fp_divu 15129619
Fp_double 20868267
Fp_halve 247271
Fp_inv 23436548
Fp_invsafe 1097242
Fp_mul 200847467
Fp_muls 17780
Fp_mulu 69752139
Fp_neg 31479943
Fp_red 82929924
Fp_sqr 63848298
Fp_sub 202972615
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 427287
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 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 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 3106673
Fq_to_FpXQ 73652
GENbinbase 915840907
QV_isscalar 54421127
Q_abs 8059627
Q_abs_shallow 120232
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619944
RgC_gtofp 34035547
RgC_gtomp 574
RgM_dimensions 9954082
RgM_fpnorml2 22655
RgM_gtofp 8258200
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22234827
RgV_gtofp 56
RgV_is_QV 142002
RgV_is_ZV 32095286
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210270
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2667901
RgX_copy 102480382
RgX_div 6996400
RgX_equal_var 26880189
RgX_fpnorml2 61608
RgX_gtofp 7151304
RgX_is_QX 399939
RgX_is_ZX 22311468
RgX_is_monomial 1318388
RgX_is_rational 68158
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479435
RgX_shift_inplace_init 479435
RgX_to_RgV 140
Rg_col_ei 1451068
Rg_to_Fq 756
ZC_hnfrem 10697524
ZM_ZV_mod 610693
ZM_hnfrem 401429
ZM_lll 7117998
ZV_ZV_mod 8147198
ZV_dvd 23485
ZV_isscalar 23675533
ZV_to_zv 3211716
ZXQ_mul 2166274
ZXQ_sqr 960613
ZX_equal1 10488
ZX_is_monic 7319853
ZX_renormalize 155007680
Z_ispower 98
Z_issquare 509451
abgrp_get_cyc 12231244
abgrp_get_gen 1765031
abgrp_get_no 406729
absfrac 46516153
absfrac_shallow 28237
addmuliu 541653
addmuliu_inplace 59564158
affc_fixlg 249624
affgr 899594
bid_get_MOD 2157231
bid_get_U 3680211
bid_get_arch 41188
bid_get_archp 2397106
bid_get_cyc 5739827
bid_get_fact 2498947
bid_get_fact2 2201559
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804677
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157949
bin_copy 471303701
bit_accuracy 3128906530
bit_accuracy_mul 3175715
bit_prec 143293146
bnf_get_clgp 5375476
bnf_get_cyc 3686611
bnf_get_fu 25859
bnf_get_fu_nocheck 289087
bnf_get_gen 1680322
bnf_get_logfu 2874778
bnf_get_nf 9866345
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367771
bnf_get_tuN 283002
bnf_get_tuU 303580
bnr_get_bid 2046089
bnr_get_bnf 3710921
bnr_get_clgp 2830217
bnr_get_cyc 2522548
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399070
bnr_get_no 277484
both_odd 124147826
cbrtr 0
cbrtr_abs 0
cgetalloc 10115
cgetc 975457
cgiv 105483676
checkell_i 5593271
closure_arity 356206483
closure_codestr 305790334
closure_get_code 28
closure_get_data 305748077
closure_get_dbg 13653
closure_get_frame 14720592
closure_get_oper 305768695
closure_get_text 37136
closure_is_variadic 45911341
col_ei 5925389
coltrunc_init 740257
const_col 9730140
const_vec 34653174
const_vecsmall 18747951
constant_coeff 1441246
cxcompotor 18211764
cxnorm 91202647
cxtofp 9079958
cxtoreal 337204
cyc_get_expo 2757530
cyclic_perm 99911
dbllog2r 92844571
degpol 5499073649
div_content 58511
divsBIL 8108180957
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997104
ell_get_a2 7106204
ell_get_a3 8814071
ell_get_a4 8536745
ell_get_a6 10370983
ell_get_b2 7371029
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11018144
ell_get_c6 13474512
ell_get_disc 16815549
ell_get_j 2126269
ell_get_type 12498941
ell_is_inf 49421012
ellff_get_a4a6 800050
ellff_get_field 2036937
ellinf 1208476
ellnf_get_bnf 119
ellnf_get_nf 2027251
equali1 1166282030
equalim1 139505725
err_get_compo 294
err_get_num 62582
gaddgs 123254028
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 245549165
gc_INT 4133554236
gc_INT_affii 11577895
gc_all 102399010
gc_leaf 1132177012
gc_slice 2205970
gc_upto 1944699203
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 531591
gen_I 1268254
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928245
get_F2x_mod 2489653
get_F2x_var 2534497
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82748751
get_Flx_mod 25498162
get_Flx_var 68375197
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 6968861
get_FpX_mod 3387841
get_FpX_var 6954545
gisdouble 2996230
gmax_shallow 13510225
gmaxsg 0
gmin_shallow 877894
gminsg 0
gmulgs 23841845
gmulgu 283104681
gsubgs 1730184
gtodouble 60943410
gtofp 254461171
gtomp 22428
gtos 85855751
gtou 100670
guncloneNULL 49829171
guncloneNULL_deep 1511579
gval 6230
hash_str 2741928
hash_str_len 31637066
icopy_avma 8045634423
idealchineseinit 5427
idealred 138812
identity_ZV 8120
identity_perm 3242867
identity_zv 3267218
inf_get_sign 1453264
inv_content 0
is_bigint 571794368
is_const_t 4981640166
is_extscalar_t 6876
is_intreal_t 9585612
is_matvec_t 741130125
is_noncalc_t 88451380
is_pm1 2215717623
is_qfb_t 0
is_rational_t 5015361
is_real_t 61897671
is_recursive_t 9070874996
is_scalar_t 403351027
is_universal_constant 326493885
is_vec_t 43909878
isint1 17586819
isintm1 5711272
isintzero 2839072869
ismpzero 9585519
isonstack 8300779738
killblock 1960074
leading_coeff 171566512
leafcopy_avma 590785724
lg_increase 443758864
lgcols 352694672
lgpol 2607787061
lincombii 38275550
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 754938
matpascal 3983
matslice 16825075
mkcol 10652796
mkcol2 156996927
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33580
mkcols 40411
mkcomplex 91617417
mkerr 0
mkfrac 41639480
mkfraccopy 4999493
mkfracss 1209563
mkintmod 8061477
mkintmodu 1834
mkmat 4780024
mkmat2 33667113
mkmat22 50261143
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122320
mkmoo 108901
mkoo 1332123
mkpadic 2009
mkpolmod 3075553
mkqfb 27928883
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69660902
mkvec2 212095622
mkvec2copy 114530
mkvec2s 220379
mkvec3 121367366
mkvec3s 524441
mkvec4 10146750
mkvec4s 21
mkvec5 15186669
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131380740
mkvecsmall2 235092336
mkvecsmall3 103259843
mkvecsmall4 18684896
mkvecsmall5 1717644
modpr_get_T 13867133
modpr_get_p 1887627
modpr_get_pr 31236672
mul_content 2657604
mul_denom 10709894
mulsubii 3893776
nbits2extraprec 1458587460
nbits2ndec 228
nbits2nlong 12716206
nbits2prec 186165599
nbrows 158274848
nchar2nlong 127794150
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26299
nf_get_G 304825
nf_get_M 21746099
nf_get_Tr 23282
nf_get_degree 71378514
nf_get_diff 4445
nf_get_disc 463517
nf_get_index 3712022
nf_get_invzk 9774896
nf_get_pol 98123651
nf_get_r1 23466640
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628882
nf_get_roundG 1748501
nf_get_sign 519601
nf_get_varn 1503777
nf_get_zk 4382
nf_get_zkden 5462241
nf_get_zkprimpart 5416453
normalize_frac 17205867
odd 2120233086
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 485670509
pari_malloc 721736728
pari_realloc 1873
pari_realloc_ip 2351683
pari_stack_alloc 1005901248
pari_stack_base 1011785285
pari_stack_delete 5900906
pari_stack_init 6358821
pari_stack_new 910599354
pari_stack_pushp 5800
perm_conj 418299
perm_inv 3747311
perm_mul 80956939
perm_sqr 728
pol0_F2x 13238550
pol0_Flx 103177411
pol1_F2x 3950148
pol1_Flx 54902497
pol_0 25907659
pol_1 3750976
pol_x 3858003
pol_xn 2249909
pol_xnall 294
polx_F2x 1079575
polx_Flx 37497812
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130119
pr_get_e 16167542
pr_get_f 26444941
pr_get_gen 12072768
pr_get_p 92762244
pr_get_tau 49774351
pr_is_inert 17224600
pr_norm 1090602
prec2lg 4472327048
prec2nbits 103976829
prec2nbits_mul 581082
prec2ndec 9778
precdbl 475646
qfb_disc 18502584
qfb_disc3 4995377
qfb_is_qfi 64498541
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8017301524
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 763897
row_i 987
rowcopy 204988
rowpermute 14758449
rowslice 79470505
rowslicepermute 233986
rowsplice 273
ser_isexactzero 10120354
shallowcopy 27897058
sqrfrac 4148270
sqrti 6611375
sqrtnr 2810391
sqrtr 80381983
sstoQ 1097313
sturm 385
submulii 31985153
submuliu 7700
submuliu_inplace 60077338
truecoef 0
trunc_safe 0
ulogint 1979793
upr_norm 346132
uutoQ 1602144
vec_append 3469027
vec_ei 1714399
vec_lengthen 18960
vec_prepend 313918
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039454
veclast 9372786
vecmodii 0
vecmoduu 49784
vecpermute 21100339
vecreverse 697305
vecreverse_inplace 2605
vecslice 657568342
vecslicepermute 2856228
vecsmall_append 4114719
vecsmall_coincidence 0
vecsmall_concat 1464661
vecsmall_copy 5369191
vecsmall_ei 584801
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1164144
vecsmall_min 2352
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75753
vecsmall_to_col 7922602
vecsmall_to_vec 577021
vecsmall_to_vec_inplace 3304
vecsmallpermute 78757848
vecsmalltrunc_append 100820805
vecsmalltrunc_init 242606179
vecsplice 385006
vectrunc_append 15859249
vectrunc_append_batch 9667
vectrunc_init 11768352
zc_to_ZC 7908055
zero_F2m 0
zero_F2m_copy 845088
zero_F2v 3647892
zero_F2x 1181
zero_Flm 2830879
zero_Flm_copy 238323
zero_Flv 59742588
zero_Flx 1427086
zero_zm 0
zero_zv 37307756
zero_zx 0
zerocol 125148280
zeromat 108984
zeromatcopy 14378220
zeropadic 857144
zeropadic_shallow 17150
zeropol 12864839
zeroser 138992
zerovec 29344976
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 2183761
zv_to_ZV 568222
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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