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 30616-7aa4fb0184) Lines: 1420 1535 92.5 %
Date: 2026-01-17 09:22:32 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 8038260
F2m_copy 200434
F2m_flip 1554060
F2m_set 798
F2v_clear 12353510
F2v_coeff 661318357
F2v_copy 4487
F2v_ei 42
F2v_flip 1554060
F2v_set 101403116
F2v_to_F2x 37784
F2xX_shift 0
F2x_clear 12353516
F2x_coeff 667943678
F2x_copy 60437899
F2x_div 1570138
F2x_equal 4659337
F2x_equal1 2873989
F2x_flip 1554059
F2x_renormalize 115210472
F2x_set 124758920
F2xqX_div 33173
F3m_coeff 3255869
F3m_copy 0
F3m_set 0
Flm_copy 6433418
Flm_row 8741096
Flv_copy 2555008
Flx_constant 333965
Flx_copy 173153873
Flx_div 1997951
Flx_div_pre 21685935
Flx_equal1 8329941
Flx_lead 978780
Flx_mulu 1105457
FlxqX_div 0
FlxqX_div_pre 165409
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4693977
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581170
FpX_renormalize 144197291
Fp_add 181055184
Fp_addmul 11254217
Fp_center 77168482
Fp_center_i 18021752
Fp_div 15034678
Fp_divu 15129171
Fp_double 20898189
Fp_halve 247271
Fp_inv 23440641
Fp_invsafe 1100351
Fp_mul 200761086
Fp_muls 17780
Fp_mulu 68199448
Fp_neg 31481507
Fp_red 82191530
Fp_sqr 63712196
Fp_sub 203219184
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 571435
FqX_Fq_mul 427293
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38568
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444663
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 367700
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 3106399
Fq_to_FpXQ 73652
GENbinbase 961896438
QV_isscalar 54416416
Q_abs 8062559
Q_abs_shallow 120234
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619847
RgC_gtofp 34029916
RgC_gtomp 574
RgM_dimensions 9741908
RgM_fpnorml2 22662
RgM_gtofp 8257730
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179006
RgV_gtofp 56
RgV_is_QV 140734
RgV_is_ZV 32158281
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210268
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406757
RgX_div 7000642
RgX_equal_var 26883017
RgX_fpnorml2 61494
RgX_gtofp 7144748
RgX_is_QX 399940
RgX_is_ZX 22423190
RgX_is_monomial 1331313
RgX_is_rational 68166
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479387
RgX_shift_inplace_init 479387
RgX_to_RgV 140
Rg_col_ei 1451027
Rg_to_Fq 756
ZC_hnfrem 10697428
ZM_ZV_mod 596408
ZM_hnfrem 363814
ZM_lll 7117566
ZV_ZV_mod 8131319
ZV_dvd 23485
ZV_isscalar 23674811
ZV_to_zv 3211406
ZXQ_mul 2161238
ZXQ_sqr 960441
ZX_equal1 12850
ZX_is_monic 7374340
ZX_renormalize 154934466
Z_ispower 98
Z_issquare 458714
abgrp_get_cyc 12230746
abgrp_get_gen 1765031
abgrp_get_no 354949
absfrac 46638521
absfrac_shallow 28237
addmuliu 535817
addmuliu_inplace 59717249
affc_fixlg 249622
affgr 898901
bid_get_MOD 2157241
bid_get_U 3680218
bid_get_arch 41188
bid_get_archp 2397084
bid_get_cyc 5739780
bid_get_fact 2498909
bid_get_fact2 2201562
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804636
bid_get_ideal 72842
bid_get_mod 1521918
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157971
bin_copy 496050312
bit_accuracy 3159216785
bit_accuracy_mul 3175484
bit_prec 143234211
bnf_get_clgp 5375011
bnf_get_cyc 3686148
bnf_get_fu 25859
bnf_get_fu_nocheck 289080
bnf_get_gen 1680317
bnf_get_logfu 2874759
bnf_get_nf 9865161
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367775
bnf_get_tuN 282994
bnf_get_tuU 303579
bnr_get_bid 2046091
bnr_get_bnf 3710952
bnr_get_clgp 2830227
bnr_get_cyc 2522553
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399070
bnr_get_no 277487
both_odd 123920659
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975458
cgiv 102672331
checkell_i 5593229
closure_arity 371641238
closure_codestr 321756316
closure_get_code 0
closure_get_data 321735244
closure_get_dbg 13628
closure_get_frame 14158026
closure_get_oper 321746557
closure_get_text 37065
closure_is_variadic 44790088
col_ei 5924603
coltrunc_init 740250
const_col 9729650
const_vec 34474095
const_vecsmall 19705953
constant_coeff 1441132
cxcompotor 18208866
cxnorm 91197927
cxtofp 9078575
cxtoreal 337205
cyc_get_expo 2757555
cyclic_perm 99911
dbllog2r 92814955
degpol 5490690337
div_content 58503
divsBIL 8088492877
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997082
ell_get_a2 7106189
ell_get_a3 8814051
ell_get_a4 8536730
ell_get_a6 10370968
ell_get_b2 7371024
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017418
ell_get_c6 13473741
ell_get_disc 16814481
ell_get_j 2126269
ell_get_type 12498811
ell_is_inf 52330071
ellff_get_a4a6 800030
ellff_get_field 2036873
ellinf 1869773
ellnf_get_bnf 119
ellnf_get_nf 2027243
equali1 1174311545
equalim1 139505175
err_get_compo 294
err_get_num 62536
gaddgs 123248611
gal_get_den 27867
gal_get_e 91
gal_get_gen 15435
gal_get_group 80385
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 255488671
gc_INT 4110406544
gc_INT_affii 8483118
gc_all 109638091
gc_leaf 1137489926
gc_slice 2204133
gc_upto 1953335142
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 531591
gen_I 1269723
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1929089
get_F2x_mod 2499312
get_F2x_var 2534134
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82578571
get_Flx_mod 25590674
get_Flx_var 68343862
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 6424335
get_FpX_mod 3394377
get_FpX_var 6957443
gisdouble 2995862
gmax_shallow 13510200
gmaxsg 0
gmin_shallow 877653
gminsg 0
gmulgs 22577231
gmulgu 282059385
gsubgs 1724803
gtodouble 60776475
gtofp 254322514
gtomp 22428
gtos 85855699
gtou 99539
guncloneNULL 47937944
guncloneNULL_deep 1440296
gval 6230
hash_str 2756815
hash_str_len 31544988
icopy_avma 8039469884
idealchineseinit 5427
idealred 138437
identity_ZV 8113
identity_perm 3241514
identity_zv 3265865
inf_get_sign 1452876
inv_content 0
is_bigint 563359028
is_const_t 4894369759
is_extscalar_t 6876
is_intreal_t 9584641
is_matvec_t 659744236
is_noncalc_t 85871565
is_pm1 2205415653
is_qfb_t 0
is_rational_t 5032463
is_real_t 62062464
is_recursive_t 9234974016
is_scalar_t 375657190
is_universal_constant 325827621
is_vec_t 43940308
isint1 17584770
isintm1 5710151
isintzero 2842971167
ismpzero 9584540
isonstack 8271890793
killblock 1921817
leading_coeff 170258123
leafcopy_avma 576982556
lg_increase 314566453
lgcols 351593809
lgpol 2685623557
lincombii 38236380
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 754830
matpascal 3983
matslice 16818389
mkcol 10639624
mkcol2 156870854
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33548
mkcols 40411
mkcomplex 91600816
mkerr 0
mkfrac 41637774
mkfraccopy 4999562
mkfracss 1209563
mkintmod 8092461
mkintmodu 1813
mkmat 4751039
mkmat2 33653756
mkmat22 50279785
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122288
mkmoo 108799
mkoo 1331816
mkpadic 2009
mkpolmod 3103730
mkqfb 27929732
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71074723
mkvec2 184893286
mkvec2copy 114527
mkvec2s 220249
mkvec3 118784062
mkvec3s 524441
mkvec4 10093895
mkvec4s 21
mkvec5 15185571
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131639282
mkvecsmall2 234801245
mkvecsmall3 104164906
mkvecsmall4 18647879
mkvecsmall5 1717454
modpr_get_T 13867129
modpr_get_p 1887627
modpr_get_pr 31236599
mul_content 2657052
mul_denom 10707961
mulsubii 3881374
nbits2extraprec 1457462268
nbits2ndec 228
nbits2nlong 12750748
nbits2prec 186116861
nbrows 157462422
nchar2nlong 127389992
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304860
nf_get_M 21745570
nf_get_Tr 22081
nf_get_degree 71369472
nf_get_diff 4445
nf_get_disc 463482
nf_get_index 3711391
nf_get_invzk 9767508
nf_get_pol 98107036
nf_get_r1 23465921
nf_get_r2 4154
nf_get_ramified_primes 64643
nf_get_roots 1628938
nf_get_roundG 1748165
nf_get_sign 519551
nf_get_varn 1503763
nf_get_zk 4382
nf_get_zkden 5459840
nf_get_zkprimpart 5413976
normalize_frac 17205601
odd 2089809393
pari_calloc 47720
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 245
pari_err_ROOTS0 63
pari_err_SQRTN 7084
pari_err_TYPE 15370
pari_err_TYPE2 3493
pari_err_VAR 371
pari_free 509463015
pari_malloc 745339946
pari_realloc 1890
pari_realloc_ip 2256797
pari_stack_alloc 1019778308
pari_stack_base 1025385503
pari_stack_delete 5609388
pari_stack_init 6052099
pari_stack_new 925118763
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781960
perm_mul 80898096
perm_sqr 728
pol0_F2x 13245058
pol0_Flx 103476580
pol1_F2x 3958386
pol1_Flx 55048084
pol_0 82996669
pol_1 3755719
pol_x 3856999
pol_xn 2249294
pol_xnall 294
polx_F2x 1078211
polx_Flx 37481424
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130339
pr_get_e 16161951
pr_get_f 26443114
pr_get_gen 12071009
pr_get_p 92750293
pr_get_tau 49768336
pr_is_inert 17223983
pr_norm 1090497
prec2lg 4469189724
prec2nbits 103959792
prec2nbits_mul 581167
prec2ndec 9778
precdbl 475373
qfb_disc 18502505
qfb_disc3 4995810
qfb_is_qfi 62323915
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 7997611835
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 763899
row_i 987
rowcopy 204988
rowpermute 14705771
rowslice 79329175
rowslicepermute 185031
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27631393
sqrfrac 4148144
sqrti 6610240
sqrtnr 2810131
sqrtr 80366681
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60200584
truecoef 0
trunc_safe 0
ulogint 1722524
upr_norm 346136
uutoQ 1600198
vec_append 3465034
vec_ei 1713831
vec_lengthen 18960
vec_prepend 314001
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036592
veclast 9372714
vecmodii 0
vecmoduu 49784
vecpermute 20547777
vecreverse 697277
vecreverse_inplace 2605
vecslice 656233593
vecslicepermute 2690384
vecsmall_append 4099597
vecsmall_coincidence 0
vecsmall_concat 1464218
vecsmall_copy 4403915
vecsmall_ei 584685
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1164099
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75638
vecsmall_to_col 7838618
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78702656
vecsmalltrunc_append 100786048
vecsmalltrunc_init 189204066
vecsplice 384913
vectrunc_append 15852735
vectrunc_append_batch 9667
vectrunc_init 11769180
zc_to_ZC 7824438
zero_F2m 0
zero_F2m_copy 845026
zero_F2v 3647666
zero_F2x 1350
zero_Flm 2829503
zero_Flm_copy 238231
zero_Flv 59673308
zero_Flx 1426747
zero_zm 0
zero_zv 36733769
zero_zx 0
zerocol 122329165
zeromat 109106
zeromatcopy 14249637
zeropadic 855873
zeropadic_shallow 17024
zeropol 42354019
zeroser 138908
zerovec 28453484
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 2183757
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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