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
F2xX_shift 0
F3m_copy 0
F3m_set 0
FlxqX_div 0
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQ_add 0
FpXQ_sub 0
FqXQ_add 0
FqXQ_div 0
FqXQ_inv 0
FqXQ_invsafe 0
FqXQ_pow 0
FqXQ_sqr 0
FqXQ_sub 0
FqX_divrem 0
FqX_halfgcd 0
FqX_integ 0
FqXn_exp 0
FqXn_sqr 0
R_abs 0
RgX_isscalar 0
bid_get_gen_nocheck 0
bid_get_no 0
cbrtr 0
cbrtr_abs 0
closure_get_code 0
gchar_get_U 0
gchar_get_hnf 0
gmaxsg 0
gminsg 0
inv_content 0
is_qfb_t 0
mkcol4s 0
mkerr 0
mkmat5 0
mkvec5s 0
mkvec6 0
pari_err_FILE 0
pari_err_MAXPRIME 0
pari_err_PACKAGE 0
polx_zx 0
random_Fq 0
truecoef 0
trunc_safe 0
vec_setconst 0
vecmodii 0
vecsmall_coincidence 0
zero_F2m 0
zero_zm 0
zero_zx 0
zm_copy 0
zm_row 0
zm_to_zxV 0
zx_shift 0
zx_to_zv 0
FqX_ddf 7
FqX_factor_squarefree 7
mkrfraccopy 14
pari_err_BUG 14
znstar_get_no 14
RgM_gtomp 21
mkvec4s 21
pari_err_CONSTPOL 21
vecsmall_indexmax 21
vecsmall_indexmin 21
pari_err_FILEDESC 36
F2v_ei 42
RgV_gtofp 56
pari_err_IRREDPOL 63
pari_err_ROOTS0 63
bnr_get_gen_nocheck 70
mkmat4 84
pari_err_COPRIME 84
vecsmall_isin 84
vecsmall_pack 84
gal_get_e 91
mkcol5 94
Z_ispower 98
pari_err_FLAG 98
pari_err_PRIME 98
rnf_get_index 105
ellnf_get_bnf 119
RgX_to_RgV 140
pari_err_OVERFLOW 156
mkvecs 168
FqX_to_mod 175
pari_err_COMPONENT 214
nbits2ndec 228
pari_err_PREC 238
pari_err_PRIORITY 245
zm_transpose 266
rowsplice 273
err_get_compo 294
pol_xnall 294
mkvec6s 301
ellQp_get_prec 308
mkcol3s 315
gchar_get_nfree 322
gchar_get_ntors 322
get_F2xqX_mod 343
rnf_get_disc 357
pari_err_VAR 371
polxn_Flx 371
sturm 385
pari_err_OP 406
pari_err_IMPL 539
vecsmall_lengthen 547
RgC_gtomp 574
rnf_get_varn 574
gchar_get_r2 623
gchar_set_HUUi 630
gchar_set_nalg 630
gchar_set_nfree 630
gchar_set_ntors 630
bnf_get_reg 648
pari_err_DIM 718
perm_sqr 728
Rg_to_Fq 756
F2m_set 798
gchar_set_m0 945
row_i 987
RgM_minor 1036
quad_disc 1085
ellQp_get_p 1134
gchar_copy_precs 1225
gchar_set_prec 1225
rnf_get_invzk 1225
rnf_get_k 1225
locs_get_Lgenfil 1288
locs_get_famod 1288
FqX_powu 1295
pari_err_MODULUS 1316
zero_F2x 1350
rnf_get_idealdisc 1386
rnf_get_alpha 1428
ellQp_get_zero 1463
powIs 1561
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_get_sfu 1743
gchar_set_evalprec 1813
mkintmodu 1813
gchar_get_nm 1869
pari_realloc 1890
RgXQX_div 1904
mkpadic 2009
gchar_get_nalg 2044
gchar_set_nf 2110
gchar_set_u0 2121
vecsmall_min 2345
vecreverse_inplace 2605
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2862
gchar_set_nfprec 2968
vecsmall_reverse 3052
vecsmall_to_vec_inplace 3304
gchar_get_m0 3318
pari_err_TYPE2 3493
get_FpXQX_degree 3589
matpascal 3983
gchar_get_evalprec 4011
gchar_get_modP 4095
FqX_normalize 4144
nf_get_r2 4154
gchar_get_u0 4252
nf_get_zk 4382
nf_get_diff 4445
F2v_copy 4487
FpXQX_div 4526
rnf_get_zk 4830
rnf_get_nfvarn 4886
idealchineseinit 5427
pari_stack_pushp 5851
gal_get_p 6006
FqX_get_red 6090
gval 6230
FqXn_expint 6590
gal_get_orders 6678
is_extscalar_t 6876
pari_err_SQRTN 7084
FqXn_inv 7126
rnf_get_nfzk 7245
FqX_roots 7273
submuliu 7700
bnr_get_gen 7847
get_FlxqX_mod 8033
identity_ZV 8113
gchar_get_mod 8225
locs_get_mod 8225
ndec2nbits 8270
FqX_gcd 8288
bnf_get_no 8372
vectrunc_append_batch 9667
prec2ndec 9778
cgetalloc 10166
gchar_get_Ui 10983
vec_shorten 11557
ZX_equal1 12850
R_abs_shallow 13097
gchar_get_nfprec 13468
closure_get_dbg 13628
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15435
znstar_get_gen 16150
gchar_get_cyc 16177
mkmat3 17001
zeropadic_shallow 17024
gchar_get_r1 17444
Fp_muls 17780
gchar_get_prec 18795
vec_lengthen 18960
FqX_halve 19411
pari_err_INV 20018
FpXY_Fq_evaly 20587
rnf_get_nfdegree 21455
FqX_mulu 21942
nf_get_Tr 22081
gtomp 22428
RgM_fpnorml2 22662
FqXQ_mul 22766
ZV_dvd 23485
gal_get_mod 23758
FqX_neg 24956
FqX_red 25354
bnf_get_fu 25859
nfV_to_scalar_or_alg 26300
gal_get_den 27867
gal_get_invvdm 27874
absfrac_shallow 28237
gequalgs 29176
zerovec_block 29654
gener_Fq_local 29946
gal_get_roots 32732
gchar_get_basis 32816
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33548
Qtoss 35322
gal_get_pol 36316
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37065
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 37784
FqX_div 38568
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47720
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58503
RgX_fpnorml2 61494
err_get_num 62536
bid_get_gen 64274
nf_get_ramified_primes 64643
RgX_is_rational 68166
FqX_sub 68607
mkquad 69118
FqX_div_by_X_x 69699
quadnorm 69881
FqX_sqr 71855
bid_get_ideal 72842
Fq_to_FpXQ 73652
vecsmall_shorten 75638
bnr_get_mod 77119
gal_get_group 80385
mkcol3 88314
gtou 99539
cyclic_perm 99911
mkcol4 103467
zv_to_zx 104146
mkmoo 108799
zeromat 109106
RgV_isin 110144
RgV_isin_i 110144
mkvec2copy 114527
Q_abs_shallow 120234
mkmatcopy 122288
mkveccopy 122521
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138437
zeroser 138908
RgV_is_QV 140734
FqX_factor 140946
get_FpXQX_mod 146583
FlxqX_div_pre 165409
znstar_get_U 176107
rowslicepermute 185031
vecsmall_prepend 186970
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200434
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220249
mkcol6 232470
ellR_get_prec 232750
zero_Flm_copy 238231
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249622
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264420
bnr_get_no 277487
gchar_get_zm 281911
bnf_get_tuN 282994
bnf_get_fu_nocheck 289080
bnf_get_tuU 303579
nf_get_G 304860
vec_prepend 314001
get_FlxqX_degree 317565
rnf_get_polabs 327628
Flx_constant 333965
cxtoreal 337205
upr_norm 346136
RgX_renormalize 349807
abgrp_get_no 354949
ZM_hnfrem 363814
FqX_mul 367700
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384913
RgX_is_QX 399940
perm_conj 418299
FqX_Fq_mul 427293
FqX_extgcd 444663
Z_issquare 458714
nf_get_disc 463482
precdbl 475373
RgX_shift_inplace 479387
RgX_shift_inplace_init 479387
zv_to_ZV 502982
vecsmall_to_vec 511781
nf_get_sign 519551
mkvec3s 524441
gdivsg 531591
addmuliu 535817
FqX_Fp_mul 571435
prec2nbits_mul 581167
vecsmall_ei 584685
ZM_ZV_mod 596408
RgC_fpnorml2 619847
FqX_is_squarefree 683802
vecreverse 697277
mkrfrac 698439
coltrunc_init 740250
logint 754830
gcmpgs 761922
row 763899
rnf_get_nf 786086
ellff_get_a4a6 800030
zero_F2m_copy 845026
FpXX_renormalize 849917
zeropadic 855873
gmin_shallow 877653
affgr 898901
ZXQ_sqr 960441
cgetc 975458
Flx_lead 978780
polx_F2x 1078211
pr_norm 1090497
sstoQ 1097215
Fp_invsafe 1100351
Flx_mulu 1105457
vecsmall_max 1164099
mkfracss 1209563
RgV_isscalar 1210268
gen_I 1269723
RgX_is_monomial 1331313
mkoo 1331816
bnf_get_sunits 1367775
rnf_get_absdegree 1392746
bnr_get_nf 1399070
zero_Flx 1426747
guncloneNULL_deep 1440296
constant_coeff 1441132
Rg_col_ei 1451027
inf_get_sign 1452876
vecsmall_concat 1464218
nf_get_varn 1503763
bid_get_mod 1521918
F2x_flip 1554059
F2m_flip 1554060
F2v_flip 1554060
F2x_div 1570138
uutoQ 1600198
nf_get_roots 1628938
bnf_get_gen 1680317
vec_ei 1713831
mkvecsmall5 1717454
ulogint 1722524
gsubgs 1724803
nf_get_roundG 1748165
abgrp_get_gen 1765031
ellinf 1869773
modpr_get_p 1887627
killblock 1921817
get_F2x_degree 1929089
Flx_div 1997951
ellnf_get_nf 2027243
ellff_get_field 2036873
bnr_get_bid 2046091
ell_get_j 2126269
bid_get_MOD 2157241
bid_get_sprk 2157971
ZXQ_mul 2161238
zv_copy 2183757
bid_get_fact2 2201562
gc_slice 2204133
pol_xn 2249294
pari_realloc_ip 2256797
bid_get_archp 2397084
bid_get_fact 2498909
get_F2x_mod 2499312
rnf_get_degree 2506335
bnr_get_cyc 2522553
get_F2x_var 2534134
ell_get_b4 2550216
Flv_copy 2555008
mul_content 2657052
RgX_coeff 2669861
vecslicepermute 2690384
hash_str 2756815
cyc_get_expo 2757555
perm_inv 2781960
sqrtnr 2810131
zero_Flm 2829503
bnr_get_clgp 2830227
rnf_get_pol 2845192
znstar_get_pe 2869063
F2x_equal1 2873989
bnf_get_logfu 2874759
gisdouble 2995862
mkpolmod 3103730
Fq_red 3106399
bit_accuracy_mul 3175484
ZV_to_zv 3211406
identity_perm 3241514
F3m_coeff 3255869
identity_zv 3265865
znstar_get_conreygen 3290176
ell_get_b8 3297414
get_FpX_mod 3394377
vec_append 3465034
zero_F2v 3647666
bid_get_U 3680218
bnf_get_cyc 3686148
bnr_get_bnf 3710952
nf_get_index 3711391
pol_1 3755719
pol_x 3856999
ell_get_b6 3863115
mulsubii 3881374
pol1_F2x 3958386
vec_to_vecsmall 4036592
vecsmall_append 4099597
sqrfrac 4148144
vecsmall_copy 4403915
mkcol2s 4416244
F2x_equal 4659337
FpXQX_renormalize 4693977
mkmat 4751039
qfb_disc3 4995810
mkfraccopy 4999562
is_rational_t 5032463
bnf_get_clgp 5375011
nf_get_zkprimpart 5413976
nf_get_zkden 5459840
FpX_div 5581170
checkell_i 5593229
pari_stack_delete 5609388
isintm1 5710151
bid_get_cyc 5739780
bid_get_grp 5804636
col_ei 5924603
pari_stack_init 6052099
get_FpX_degree 6424335
Flm_copy 6433418
sqrti 6610240
get_FpX_var 6957443
RgX_div 7000642
vecsmall_lexcmp 7043259
ell_get_a2 7106189
ZM_lll 7117566
RgX_gtofp 7144748
znstar_get_faN 7331711
ell_get_b2 7371024
ZX_is_monic 7374340
zc_to_ZC 7824438
vecsmall_to_col 7838618
znstar_get_conreycyc 7979693
F2m_coeff 8038260
Q_abs 8062559
mkintmod 8092461
ZV_ZV_mod 8131319
RgM_gtofp 8257730
Flx_equal1 8329941
gc_INT_affii 8483118
ell_get_a4 8536730
Flm_row 8741096
ell_get_a3 8814051
ell_get_a1 8997082
cxtofp 9078575
veclast 9372714
ismpzero 9584540
is_intreal_t 9584641
const_col 9729650
RgM_dimensions 9741908
nf_get_invzk 9767508
bnf_get_nf 9865161
mkvec4 10093895
ser_isexactzero 10120284
ell_get_a6 10370968
mkcol 10639624
ZC_hnfrem 10697428
mul_denom 10707961
ell_get_c4 11017418
Fp_addmul 11254217
vectrunc_init 11769180
pr_get_gen 12071009
abgrp_get_cyc 12230746
F2v_clear 12353510
F2x_clear 12353516
ell_get_type 12498811
nbits2nlong 12750748
pol0_F2x 13245058
ell_get_c6 13473741
gmax_shallow 13510200
modpr_get_T 13867129
closure_get_frame 14158026
zeromatcopy 14249637
rowpermute 14705771
Fp_div 15034678
Fp_divu 15129171
mkvec5 15185571
vectrunc_append 15852735
pr_get_e 16161951
ell_get_disc 16814481
matslice 16818389
normalize_frac 17205601
pr_is_inert 17223983
isint1 17584770
Fp_center_i 18021752
cxcompotor 18208866
qfb_disc 18502505
mkvecsmall4 18647879
const_vecsmall 19705953
vecpermute 20547777
Fp_double 20898189
Flx_div_pre 21685935
nf_get_M 21745570
RgM_shallowcopy 22179006
RgX_is_ZX 22423190
gmulgs 22577231
Fp_inv 23440641
nf_get_r1 23465921
ZV_isscalar 23674811
get_Flx_mod 25590674
pr_get_f 26443114
RgX_equal_var 26883017
shallowcopy 27631393
mkqfb 27929732
zerovec 28453484
modpr_get_pr 31236599
Fp_neg 31481507
hash_str_len 31544988
submulii 31982591
RgV_is_ZV 32158281
mkmat2 33653756
RgC_gtofp 34029916
const_vec 34474095
zero_zv 36733769
polx_Flx 37481424
lincombii 38236380
znstar_get_N 38655073
mkfrac 41637774
zeropol 42354019
powii 43130339
is_vec_t 43940308
closure_is_variadic 44790088
absfrac 46638521
guncloneNULL 47937944
pr_get_tau 49768336
mkmat22 50279785
ell_is_inf 52330071
QV_isscalar 54416416
pol1_Flx 55048084
zero_Flv 59673308
addmuliu_inplace 59717249
submuliu_inplace 60200584
F2x_copy 60437899
gtodouble 60776475
is_real_t 62062464
qfb_is_qfi 62323915
Fp_sqr 63712196
Fp_mulu 68199448
get_Flx_var 68343862
mkvec 71074723
nf_get_degree 71369472
Fp_center 77168482
vecsmallpermute 78702656
rowslice 79329175
sqrtr 80366681
perm_mul 80898096
Fp_red 82191530
get_Flx_degree 82578571
pol_0 82996669
gtos 85855699
is_noncalc_t 85871565
cxnorm 91197927
mkcomplex 91600816
pr_get_p 92750293
dbllog2r 92814955
nf_get_pol 98107036
vecsmalltrunc_append 100786048
F2v_set 101403116
cgiv 102672331
RgX_copy 103406757
pol0_Flx 103476580
prec2nbits 103959792
mkvecsmall3 104164906
vecsmall_prefixcmp 108088071
gc_all 109638091
F2x_renormalize 115210472
mkvec3 118784062
zerocol 122329165
gaddgs 123248611
both_odd 123920659
F2x_set 124758920
nchar2nlong 127389992
mkvecsmall 131639282
equalim1 139505175
bit_prec 143234211
FpX_renormalize 144197291
ZX_renormalize 154934466
mkcol2 156870854
nbrows 157462422
leading_coeff 170258123
Flx_copy 173153873
Fp_add 181055184
mkvec2 184893286
nbits2prec 186116861
vecsmalltrunc_init 189204066
Fp_mul 200761086
Fp_sub 203219184
mkvecsmall2 234801245
gtofp 254322514
gc_GEN 255488671
gmulgu 282059385
lg_increase 314566453
closure_get_data 321735244
closure_get_oper 321746557
closure_codestr 321756316
is_universal_constant 325827621
lgcols 351593809
closure_arity 371641238
is_scalar_t 375657190
bin_copy 496050312
pari_free 509463015
is_bigint 563359028
leafcopy_avma 576982556
vecslice 656233593
is_matvec_t 659744236
F2v_coeff 661318357
F2x_coeff 667943678
pari_malloc 745339946
pari_stack_new 925118763
GENbinbase 961896438
pari_stack_alloc 1019778308
pari_stack_base 1025385503
gc_leaf 1137489926
equali1 1174311545
nbits2extraprec 1457462268
gc_upto 1953335142
odd 2089809393
is_pm1 2205415653
lgpol 2685623557
isintzero 2842971167
bit_accuracy 3159216785
gc_INT 4110406544
prec2lg 4469189724
is_const_t 4894369759
degpol 5490690337
remsBIL 7997611835
icopy_avma 8039469884
divsBIL 8088492877
isonstack 8271890793
is_recursive_t 9234974016

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