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 30590-f14e077362) Lines: 1420 1535 92.5 %
Date: 2026-01-02 09:20:44 Functions: 649 707 91.8 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
F2m_clear 0
F2m_coeff 8039001
F2m_copy 200476
F2m_flip 1554381
F2m_set 798
F2v_clear 12354197
F2v_coeff 661322587
F2v_copy 4487
F2v_ei 42
F2v_flip 1554381
F2v_set 101403900
F2v_to_F2x 37907
F2xX_shift 0
F2x_clear 12354202
F2x_coeff 667895730
F2x_copy 60465706
F2x_div 1571574
F2x_equal 4666220
F2x_equal1 2874186
F2x_flip 1554381
F2x_renormalize 115242588
F2x_set 124751070
F2xqX_div 33173
F3m_coeff 3255865
F3m_copy 0
F3m_set 0
Flm_copy 6433430
Flm_row 8741301
Flv_copy 2555078
Flx_constant 333974
Flx_copy 173159313
Flx_div 1997952
Flx_div_pre 21686121
Flx_equal1 8330079
Flx_lead 979249
Flx_mulu 1105232
FlxqX_div 0
FlxqX_div_pre 165412
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694027
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581009
FpX_renormalize 144201138
Fp_add 181251325
Fp_addmul 11298232
Fp_center 77156064
Fp_center_i 17984863
Fp_div 15034508
Fp_divu 15129002
Fp_double 21006067
Fp_halve 247271
Fp_inv 23438224
Fp_invsafe 1100358
Fp_mul 200814132
Fp_muls 17780
Fp_mulu 68942818
Fp_neg 31478739
Fp_red 82190931
Fp_sqr 64164520
Fp_sub 203506563
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 571440
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 444660
FqX_factor 140946
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 367705
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 3106236
Fq_to_FpXQ 73652
GENbinbase 961752752
QV_isscalar 54414064
Q_abs 8062599
Q_abs_shallow 120245
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619834
RgC_gtofp 34028045
RgC_gtomp 574
RgM_dimensions 9741260
RgM_fpnorml2 22662
RgM_gtofp 8257356
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22173047
RgV_gtofp 56
RgV_is_QV 140723
RgV_is_ZV 32158324
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210277
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406541
RgX_div 7000641
RgX_equal_var 26883014
RgX_fpnorml2 61496
RgX_gtofp 7144660
RgX_is_QX 399938
RgX_is_ZX 22423095
RgX_is_monomial 1331366
RgX_is_rational 68165
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479399
RgX_shift_inplace_init 479399
RgX_to_RgV 140
Rg_col_ei 1451000
Rg_to_Fq 756
ZC_hnfrem 10695912
ZM_ZV_mod 596468
ZM_hnfrem 363772
ZM_lll 7116133
ZV_ZV_mod 8131408
ZV_dvd 23485
ZV_isscalar 23233315
ZV_to_zv 3211408
ZXQ_mul 2161161
ZXQ_sqr 960341
ZX_equal1 12850
ZX_is_monic 7374299
ZX_renormalize 154964038
Z_ispower 98
Z_issquare 458705
abgrp_get_cyc 12230761
abgrp_get_gen 1765032
abgrp_get_no 354944
absfrac 46638472
absfrac_shallow 28237
addmuliu 535761
addmuliu_inplace 59706861
affc_fixlg 249620
affgr 898866
bid_get_MOD 2157264
bid_get_U 3680241
bid_get_arch 41188
bid_get_archp 2397109
bid_get_cyc 5739793
bid_get_fact 2498917
bid_get_fact2 2201582
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804649
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157994
bin_copy 495981678
bit_accuracy 3156076168
bit_accuracy_mul 3175472
bit_prec 142792028
bnf_get_clgp 5375007
bnf_get_cyc 3686154
bnf_get_fu 25859
bnf_get_fu_nocheck 289081
bnf_get_gen 1680317
bnf_get_logfu 2874761
bnf_get_nf 9863890
bnf_get_no 8365
bnf_get_reg 648
bnf_get_sunits 1367774
bnf_get_tuN 282992
bnf_get_tuU 303568
bnr_get_bid 2046095
bnr_get_bnf 3751376
bnr_get_clgp 2830234
bnr_get_cyc 2522565
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1368105
bnr_get_no 277491
both_odd 123763130
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975456
cgiv 102256766
checkell_i 5593201
closure_arity 371283324
closure_codestr 321430649
closure_get_code 0
closure_get_data 321384667
closure_get_dbg 13621
closure_get_frame 14157563
closure_get_oper 321409860
closure_get_text 37051
closure_is_variadic 44788785
col_ei 5924548
coltrunc_init 740250
const_col 9729616
const_vec 34469048
const_vecsmall 19699653
constant_coeff 1441142
cxcompotor 18210932
cxnorm 91200514
cxtofp 9079626
cxtoreal 337203
cyc_get_expo 2757559
cyclic_perm 99911
dbllog2r 92816775
degpol 5494561346
div_content 58517
divsBIL 8087184400
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997090
ell_get_a2 7106183
ell_get_a3 8814058
ell_get_a4 8536724
ell_get_a6 10370962
ell_get_b2 7371037
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017916
ell_get_c6 13474332
ell_get_disc 16815058
ell_get_j 2126269
ell_get_type 12498489
ell_is_inf 52376495
ellff_get_a4a6 800037
ellff_get_field 2036868
ellinf 1869803
ellnf_get_bnf 119
ellnf_get_nf 2027233
equali1 1174192621
equalim1 139505274
err_get_compo 294
err_get_num 62521
gaddgs 123248578
gal_get_den 27867
gal_get_e 91
gal_get_gen 15435
gal_get_group 80387
gal_get_invvdm 27874
gal_get_mod 23758
gal_get_orders 6678
gal_get_p 6006
gal_get_pol 36316
gal_get_roots 32732
gc_GEN 255329507
gc_INT 4106470319
gc_INT_affii 8488319
gc_all 109628050
gc_leaf 1137647174
gc_slice 2204153
gc_upto 1951773110
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 761915
gdivsg 531592
gen_I 1269712
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1929034
get_F2x_mod 2499252
get_F2x_var 2533968
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82903591
get_Flx_mod 25590500
get_Flx_var 68339708
get_FlxqX_degree 317565
get_FlxqX_mod 8033
get_FlxqX_var 264420
get_FpXQX_degree 3589
get_FpXQX_mod 146583
get_FpXQX_var 51630
get_FpX_degree 6424322
get_FpX_mod 3394364
get_FpX_var 6957651
gisdouble 2991369
gmax_shallow 13510197
gmaxsg 0
gmin_shallow 877700
gminsg 0
gmulgs 22532855
gmulgu 282059385
gsubgs 1724806
gtodouble 60777503
gtofp 254302371
gtomp 22428
gtos 85855697
gtou 99527
guncloneNULL 47932404
guncloneNULL_deep 1437008
gval 6230
hash_str 2756812
hash_str_len 31544511
icopy_avma 8035294308
idealchineseinit 5427
idealred 138459
identity_ZV 8113
identity_perm 3241067
identity_zv 3265417
inf_get_sign 1452904
inv_content 0
is_bigint 562903256
is_const_t 4893589585
is_extscalar_t 6876
is_intreal_t 9585840
is_matvec_t 659390648
is_noncalc_t 85874476
is_pm1 2203545902
is_qfb_t 0
is_rational_t 5032290
is_real_t 62062467
is_recursive_t 9233811384
is_scalar_t 375660064
is_universal_constant 325737076
is_vec_t 43944256
isint1 17584673
isintm1 5710129
isintzero 2842308755
ismpzero 9585738
isonstack 8266668076
killblock 1920981
leading_coeff 170259948
leafcopy_avma 576635803
lg_increase 316405841
lgcols 350596269
lgpol 2687656255
lincombii 38201807
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 754825
matpascal 3983
matslice 16817750
mkcol 10639929
mkcol2 156787843
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33538
mkcols 40411
mkcomplex 91612051
mkerr 0
mkfrac 41636729
mkfraccopy 4999433
mkfracss 1209563
mkintmod 8092796
mkintmodu 1813
mkmat 4750819
mkmat2 33652350
mkmat22 50250053
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122242
mkmoo 108781
mkoo 1331868
mkpadic 2009
mkpolmod 3103725
mkqfb 27927156
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71083817
mkvec2 185039726
mkvec2copy 114508
mkvec2s 220243
mkvec3 119742444
mkvec3s 524441
mkvec4 10093588
mkvec4s 21
mkvec5 15185586
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131622210
mkvecsmall2 234825898
mkvecsmall3 104175430
mkvecsmall4 18663010
mkvecsmall5 1717481
modpr_get_T 13867503
modpr_get_p 1888403
modpr_get_pr 31237735
mul_content 2654098
mul_denom 10710948
mulsubii 3881365
nbits2extraprec 1456844547
nbits2ndec 228
nbits2nlong 12749302
nbits2prec 186108950
nbrows 157431020
nchar2nlong 127380961
ndec2nbits 8270
ndec2nlong 41549
ndec2prec 33279
nfV_to_scalar_or_alg 26299
nf_get_G 303812
nf_get_M 21306498
nf_get_Tr 22083
nf_get_degree 71362299
nf_get_diff 4445
nf_get_disc 463485
nf_get_index 3711335
nf_get_invzk 9767300
nf_get_pol 98071930
nf_get_r1 23026943
nf_get_r2 4154
nf_get_ramified_primes 64643
nf_get_roots 1627850
nf_get_roundG 1747140
nf_get_sign 519541
nf_get_varn 1503546
nf_get_zk 4382
nf_get_zkden 5463192
nf_get_zkprimpart 5417376
normalize_frac 17204798
odd 2088975050
pari_calloc 47713
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 84
pari_err_DIM 718
pari_err_DOMAIN 2862
pari_err_FILE 0
pari_err_FILEDESC 36
pari_err_FLAG 98
pari_err_IMPL 539
pari_err_INV 20018
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 238
pari_err_ROOTS0 63
pari_err_SQRTN 7084
pari_err_TYPE 15370
pari_err_TYPE2 3493
pari_err_VAR 371
pari_free 509347622
pari_malloc 745238744
pari_realloc 1890
pari_realloc_ip 2254340
pari_stack_alloc 1019548915
pari_stack_base 1025109394
pari_stack_delete 5586850
pari_stack_init 6050525
pari_stack_new 924862187
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781855
perm_mul 80893106
perm_sqr 728
pol0_F2x 13247606
pol0_Flx 103468930
pol1_F2x 3957353
pol1_Flx 55044653
pol_0 82996524
pol_1 3755659
pol_x 3856918
pol_xn 2249279
pol_xnall 294
polx_F2x 1078888
polx_Flx 37482903
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43126915
pr_get_e 16101606
pr_get_f 26341281
pr_get_gen 12066868
pr_get_p 92474516
pr_get_tau 49563830
pr_is_inert 17145666
pr_norm 1089328
prec2lg 4468320004
prec2nbits 103961667
prec2nbits_mul 581164
prec2ndec 9778
precdbl 475370
qfb_disc 18502542
qfb_disc3 4994516
qfb_is_qfi 62327432
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 7996155534
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 763883
row_i 987
rowcopy 204988
rowpermute 14704754
rowslice 79315870
rowslicepermute 184690
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27626100
sqrfrac 4148164
sqrti 6664630
sqrtnr 2809005
sqrtr 80367486
sstoQ 1097215
sturm 385
submulii 32838828
submuliu 7700
submuliu_inplace 60195060
truecoef 0
trunc_safe 0
ulogint 1718289
upr_norm 346136
uutoQ 1600198
vec_append 3465049
vec_ei 1713836
vec_lengthen 18960
vec_prepend 313998
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036613
veclast 9372696
vecmodii 0
vecmoduu 49784
vecpermute 20541069
vecreverse 697277
vecreverse_inplace 2605
vecslice 656188586
vecslicepermute 2689137
vecsmall_append 4099629
vecsmall_coincidence 0
vecsmall_concat 1464271
vecsmall_copy 4403864
vecsmall_ei 584702
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043255
vecsmall_max 1164122
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75639
vecsmall_to_col 7838181
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78697757
vecsmalltrunc_append 100807369
vecsmalltrunc_init 189275950
vecsplice 384911
vectrunc_append 15849653
vectrunc_append_batch 9667
vectrunc_init 11768467
zc_to_ZC 7823999
zero_F2m 0
zero_F2m_copy 845062
zero_F2v 3647752
zero_F2x 1350
zero_Flm 2829182
zero_Flm_copy 238201
zero_Flv 59654766
zero_Flx 1426697
zero_zm 0
zero_zv 36732123
zero_zx 0
zerocol 122316244
zeromat 109123
zeromatcopy 14247817
zeropadic 855638
zeropadic_shallow 17024
zeropol 42353903
zeroser 138908
zerovec 28453500
zerovec_block 29654
zm_copy 0
zm_row 0
zm_to_zxV 0
zm_transpose 266
znstar_get_N 38655073
znstar_get_U 176107
znstar_get_Ui 46788
znstar_get_conreycyc 7979693
znstar_get_conreygen 3290176
znstar_get_cyc 262088
znstar_get_faN 7331711
znstar_get_gen 16150
znstar_get_no 14
znstar_get_pe 2869063
zv_copy 2183835
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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