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) Coverage Total Hit
Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 92.5 % 1535 1420
Test Date: 2026-10-17 17:03:22 Functions: 91.8 % 707 649
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function 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
bit_prec 0
cbrtr 0
cbrtr_abs 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
nbits2ndec 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
closure_get_code 28
pari_err_FILEDESC 36
F2v_ei 42
mkvec6 42
RgV_gtofp 56
pari_err_IRREDPOL 63
bnr_get_gen_nocheck 70
pari_err_ROOTS0 70
mkmat4 84
vecsmall_isin 84
vecsmall_pack 84
gal_get_e 91
pari_err_COPRIME 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
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 637
gchar_set_nalg 637
gchar_set_nfree 637
gchar_set_ntors 637
bnf_get_reg 648
pari_err_DIM 718
perm_sqr 728
Rg_to_Fq 756
F2m_set 798
row_i 987
RgM_minor 1036
ellQp_get_p 1134
gchar_set_m0 1190
rnf_get_invzk 1225
rnf_get_k 1225
FqX_powu 1288
locs_get_Lgenfil 1288
locs_get_famod 1288
pari_err_MODULUS 1316
zero_F2x 1350
quad_disc 1379
rnf_get_idealdisc 1386
rnf_get_alpha 1428
ellQp_get_zero 1463
gchar_copy_precs 1470
gchar_set_prec 1470
gchar_set_basis 1827
gchar_set_cyc 1827
mkintmodu 1834
pari_realloc 1887
RgXQX_div 1904
gchar_get_sfu 1996
mkpadic 2009
gchar_set_evalprec 2086
gchar_get_nm 2108
gchar_set_u0 2142
gchar_get_nalg 2296
gchar_set_nf 2363
vecreverse_inplace 2612
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2876
vecsmall_reverse 3052
vecsmall_to_vec_inplace 3304
gchar_set_nfprec 3466
pari_err_TYPE2 3493
get_FpXQX_degree 3569
gchar_get_m0 3823
gchar_get_evalprec 4011
gchar_get_modP 4095
FqX_normalize 4144
nf_get_r2 4154
nf_get_zk 4382
nf_get_diff 4445
FpXQX_div 4519
rnf_get_zk 4830
rnf_get_nfvarn 4886
F2v_copy 4893
matpascal 4935
gchar_get_u0 5002
idealchineseinit 5427
vecsmall_min 5509
pari_stack_pushp 5840
FqX_get_red 6069
gal_get_p 6118
gval 6391
FqXn_expint 6590
gal_get_orders 6713
is_extscalar_t 6904
FqXn_inv 7070
pari_err_SQRTN 7084
FqX_roots 7231
rnf_get_nfzk 7245
submuliu 7700
bnr_get_gen 7847
get_FlxqX_mod 8033
identity_ZV 8120
gchar_get_mod 8225
locs_get_mod 8225
ndec2nbits 8270
FqX_gcd 8288
bnf_get_no 8386
vectrunc_append_batch 9667
prec2ndec 9778
cgetalloc 10153
ZX_equal1 10514
gchar_get_Ui 11096
vec_shorten 11564
R_abs_shallow 13097
absfrac_shallow 13097
closure_get_dbg 13674
gchar_get_nfprec 13854
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15624
znstar_get_gen 16150
gchar_get_cyc 16535
mkmat3 17003
zeropadic_shallow 17150
Fp_muls 17640
gchar_get_r1 17683
vec_lengthen 18983
FqX_halve 19250
gchar_get_prec 19427
pari_err_INV 20032
FpXY_Fq_evaly 20405
rnf_get_nfdegree 21455
FqX_mulu 21900
gtomp 22428
FqXQ_mul 22745
RgM_fpnorml2 23338
nf_get_Tr 23352
ZV_dvd 23485
gal_get_mod 23870
FqX_neg 24900
FqX_red 25298
bnf_get_fu 25859
nfV_to_scalar_or_alg 26300
gal_get_den 27867
gal_get_invvdm 27874
gequalgs 29246
zerovec_block 29675
gener_Fq_local 29946
gal_get_roots 32844
F2xqX_div 33187
mkcolcopy 33551
ndec2prec 33559
RgX_renormalize 34135
gchar_get_basis 34731
Qtoss 35364
gal_get_pol 36428
closure_get_text 37178
FqX_rem 37659
gchar_get_S 38371
gchar_get_ns 38371
FqX_div 38569
gchar_get_nc 38876
F2v_to_F2x 38913
FqX_deriv 39697
mkcols 40411
bid_get_arch 41188
ndec2nlong 41829
znstar_get_Ui 46788
FqX_degfact 47786
pari_calloc 48209
bid_get_sarch 48594
vecmoduu 49784
get_FpXQX_var 51430
gchar_get_loccyc 52520
locs_get_cyc 54144
div_content 58500
RgX_fpnorml2 62767
bid_get_gen 64274
nf_get_ramified_primes 65098
FqX_sub 68026
RgX_is_rational 68842
mkquad 69118
FqX_div_by_X_x 69699
quadnorm 70105
FqX_sqr 71232
bid_get_ideal 72849
Fq_to_FpXQ 73652
vecsmall_shorten 77081
bnr_get_mod 77126
gal_get_group 80528
mkcol3 88320
cyclic_perm 99932
gtou 102019
mkcol4 103467
zv_to_zx 104146
zeromat 108902
mkmoo 108951
RgV_isin 111958
RgV_isin_i 111958
mkvec2copy 114568
mkmatcopy 122358
mkveccopy 122528
FqX_add 124082
Q_abs_shallow 127659
RgXQX_rem 127908
rnf_get_map 135659
zeroser 139020
idealred 139124
FqX_factor 140960
RgV_is_QV 142058
F3m_coeff 144858
get_FpXQX_mod 146583
FlxqX_div_pre 165917
znstar_get_U 176107
vecsmall_prepend 187025
gchar_get_DLdata 192479
locs_get_Lsprk 195755
get_F2xqX_degree 201185
F2m_copy 201412
rowcopy 204988
mkmat22s 207578
gchar_get_bnf 207685
locs_get_m_infty 211534
mkvec2s 221667
mkcol6 232582
ellR_get_prec 232939
rowslicepermute 234148
zero_Flm_copy 241036
Fp_halve 243517
gchar_get_nf 247942
affc_fixlg 250436
rnf_get_nfpol 255354
FqXn_mul 261240
znstar_get_cyc 262088
get_FlxqX_var 266299
bnr_get_no 277494
bnf_get_tuN 283031
gchar_get_zm 286343
bnf_get_fu_nocheck 289112
bnf_get_tuU 303613
nf_get_G 304665
vec_prepend 313943
get_FlxqX_degree 320067
rnf_get_polabs 327628
cxtoreal 338020
upr_norm 347921
FqX_mul 369138
ellR_get_sign 371829
get_F2xqX_var 376106
vecsplice 385296
RgX_is_QX 400122
ZM_hnfrem 401507
abgrp_get_no 407116
perm_conj 422429
FqX_Fq_mul 424510
err_get_num 439305
FqX_extgcd 449760
nf_get_disc 464446
precdbl 476743
RgX_shift_inplace 479616
RgX_shift_inplace_init 479616
zv_to_ZV 504205
Z_issquare 509836
vecsmall_to_vec 513109
nf_get_sign 522482
mkvec3s 524441
addmuliu 549841
ellff_get_a4a6 551908
gdivsg 561958
FqX_Fp_mul 579695
prec2nbits_mul 581910
vecsmall_ei 585522
ZM_ZV_mod 610978
RgC_fpnorml2 620024
powIs 620095
affgr 665850
FqX_is_squarefree 683718
vecreverse 697305
mkrfrac 698726
coltrunc_init 740376
logint 757174
gcmpgs 761951
row 767844
FpXX_renormalize 782142
rnf_get_nf 786086
zero_F2m_copy 847283
zeropadic 858086
gmin_shallow 902767
ZXQ_sqr 963426
cgetc 976273
constant_coeff 1065043
Flx_lead 1066539
polx_F2x 1083298
pr_norm 1090697
Flx_constant 1092086
sstoQ 1097313
ellinf 1097909
Fp_invsafe 1098677
Flx_mulu 1155304
vecsmall_max 1177911
mkfracss 1209605
RgV_isscalar 1211819
gen_I 1269373
mkoo 1333357
RgX_is_monomial 1346275
bnf_get_sunits 1369339
rnf_get_absdegree 1392746
bnr_get_nf 1399132
inf_get_sign 1454530
vecsmall_concat 1466279
Rg_col_ei 1472529
nf_get_varn 1504035
bid_get_mod 1521921
guncloneNULL_deep 1555391
F2m_flip 1560492
F2v_flip 1560492
F2x_flip 1560492
F2x_div 1579355
uutoQ 1602256
nf_get_roots 1632908
bnf_get_gen 1681899
vec_ei 1716784
gsubgs 1731854
nf_get_roundG 1749580
abgrp_get_gen 1766677
ellff_get_field 1791899
zv_copy 1879854
modpr_get_p 1887627
mkvecsmall5 1898423
get_F2x_degree 1936710
killblock 1982430
Flx_div 2003274
ellnf_get_nf 2027312
bnr_get_bid 2046122
ulogint 2114146
ell_get_j 2126895
bid_get_MOD 2157304
bid_get_sprk 2158039
get_F2x_var 2176849
ZXQ_mul 2192266
bid_get_fact2 2201621
gc_slice 2217959
pol_xn 2237750
Flv_copy 2251414
pari_realloc_ip 2385367
bid_get_archp 2397285
bid_get_fact 2499065
rnf_get_degree 2506335
bnr_get_cyc 2522682
ell_get_b4 2550719
mul_content 2672576
cyc_get_expo 2757632
hash_str 2787689
sqrtnr 2812057
bnr_get_clgp 2830388
rnf_get_pol 2845192
zero_Flm 2854854
znstar_get_pe 2869070
F2x_equal1 2871792
bnf_get_logfu 2877898
vecslicepermute 2880274
RgX_coeff 2909086
gisdouble 2992666
Fq_red 3109642
bit_accuracy_mul 3176882
zero_Flx 3256275
identity_perm 3260243
identity_zv 3284606
znstar_get_conreygen 3290533
mkpolmod 3297289
ell_get_b8 3297567
get_F2x_mod 3311059
ZV_to_zv 3318880
get_FpX_mod 3391357
vec_append 3470858
zero_F2v 3663685
bid_get_U 3680282
bnf_get_cyc 3689996
bnr_get_bnf 3710982
nf_get_index 3716987
pol_1 3762761
perm_inv 3781358
ell_get_b6 3863695
pol_x 3886958
mulsubii 3899204
vecsmall_append 4117792
vec_to_vecsmall 4149430
F2x_equal 4254630
sqrfrac 4399583
mkcol2s 4416244
FpXQX_renormalize 4641882
pol1_F2x 4778111
mkmat 4783124
qfb_disc3 5002173
mkfraccopy 5217058
is_rational_t 5304134
bnf_get_clgp 5380463
nf_get_zkprimpart 5419713
nf_get_zkden 5465437
FpX_div 5609813
bid_get_cyc 5740019
bid_get_grp 5804874
col_ei 5929250
pari_stack_delete 6063652
isintm1 6224592
Flm_copy 6442203
pari_stack_init 6446225
sqrti 6618569
get_FpX_var 6879899
RgX_div 7001097
ZM_lll 7142817
RgX_gtofp 7173965
vecsmall_lexcmp 7211133
znstar_get_faN 7334854
vecsmall_copy 7354086
ell_get_b2 7552266
ZX_is_monic 7723193
zc_to_ZC 7978633
znstar_get_conreycyc 7982136
vecsmall_to_col 7993179
mkintmod 8073961
get_FpX_degree 8094069
Q_abs 8131035
ZV_ZV_mod 8147968
Flx_equal1 8248188
RgM_gtofp 8264804
F2m_coeff 8462998
Flm_row 8756557
cxtofp 9248217
veclast 9557869
ismpzero 9716706
is_intreal_t 9716797
const_col 9731344
nf_get_invzk 9782906
bnf_get_nf 9875390
RgM_dimensions 9956314
ell_get_a4 10507548
mkvec4 10533335
ell_get_a6 10552255
mkcol 10667496
ZC_hnfrem 10699943
mul_denom 10788852
checkell_i 10954020
ell_get_a2 11293923
Fp_addmul 11419941
gc_INT_affii 11653600
vectrunc_init 11795742
ser_isexactzero 11871524
pr_get_gen 12078099
abgrp_get_cyc 12235183
F2v_clear 12464073
F2x_clear 12464073
ell_get_a3 13229550
gmax_shallow 13510257
ell_get_c4 13707273
modpr_get_T 13867548
zeromatcopy 14384655
closure_get_frame 14758325
rowpermute 14795035
Fp_div 14993239
Fp_divu 15087986
mkvec5 15190606
vectrunc_append 15915049
pr_get_e 16165433
ell_get_c6 16166557
matslice 16932980
pr_is_inert 17228068
ell_get_a1 17419134
pol0_F2x 17431054
ell_get_disc 18144860
Fp_center_i 18207777
isint1 18256748
qfb_disc 18522403
cxcompotor 18765516
const_vecsmall 18941381
mkvecsmall4 20245114
vecpermute 21129834
Fp_double 21596020
nf_get_M 21751547
Flx_div_pre 21819319
RgM_shallowcopy 22269275
RgX_is_ZX 22521863
ell_get_type 22946909
nf_get_r1 23476602
Fp_inv 23545035
ZV_isscalar 23697379
get_Flx_mod 25663153
pr_get_f 26448423
RgX_equal_var 27145972
shallowcopy 27955977
normalize_frac 28129417
mkqfb 28269793
zerovec 29356781
gmulgs 29757749
modpr_get_pr 31237604
hash_str_len 31645804
RgV_is_ZV 32132601
submulii 33037982
mkmat2 33669979
RgC_gtofp 34123647
const_vec 34729409
Fp_neg 37730755
polx_Flx 37978189
lincombii 38364303
znstar_get_N 38658755
zero_zv 39188820
zeropol 42429169
powii 43757909
is_vec_t 44253507
closure_is_variadic 46077559
absfrac 48084480
guncloneNULL 48998424
pr_get_tau 49778483
QV_isscalar 54426657
mkfrac 54535852
mkmat22 54535975
pol1_Flx 56080651
ell_is_inf 59333636
zero_Flv 61821603
is_real_t 62080967
qfb_is_qfi 65326804
addmuliu_inplace 66120996
gtodouble 66284032
F2x_copy 66572850
submuliu_inplace 66627783
get_Flx_var 69187919
Fp_sqr 69611814
mkvec 70143529
Fp_mulu 70773319
nf_get_degree 71320736
Fp_center 78864294
vecsmallpermute 79344953
rowslice 80077547
perm_mul 81658307
Fp_red 83003221
get_Flx_degree 83067993
pol_0 84220415
gtos 85888575
is_noncalc_t 86220855
sqrtr 87241358
pr_get_p 92767000
mkcomplex 92997443
prec2nbits 93803068
dbllog2r 94962025
cxnorm 95486306
nf_get_pol 98103862
vecsmalltrunc_append 101231027
gc_all 103410881
RgX_copy 103803456
F2v_set 104219479
cgiv 106106976
mkvecsmall3 106870922
vecsmall_prefixcmp 108088071
pol0_Flx 114802682
mkvec3 122647885
gaddgs 123273820
both_odd 124810872
zerocol 125343897
nchar2nlong 127837187
F2x_set 130281491
F2x_renormalize 130575434
equalim1 139584397
mkvecsmall 143657307
FpX_renormalize 146570629
ZX_renormalize 158594198
nbrows 159346440
mkcol2 168885365
leading_coeff 169548429
Fp_add 185374322
nbits2prec 189570543
Flx_copy 196485946
Fp_sub 204162619
Fp_mul 205164005
mkvec2 222681450
gc_GEN 238014804
vecsmalltrunc_init 255843103
gtofp 260527884
mkvecsmall2 262032336
closure_get_data 282636278
closure_codestr 282649675
closure_get_oper 282649675
gmulgu 283377954
closure_arity 333202771
is_universal_constant 334699651
lgcols 354538422
is_scalar_t 376860462
lg_increase 474730832
bin_copy 480533138
pari_free 494848514
leafcopy_avma 586476762
is_bigint 592012183
nbits2nlong 620916929
is_matvec_t 639643286
F2v_coeff 665814939
vecslice 670259905
F2x_coeff 672522008
pari_malloc 730392921
pari_stack_new 886591130
nbits2extraprec 918251031
GENbinbase 934031550
pari_stack_alloc 982056935
pari_stack_base 988126433
equali1 1180127384
gc_leaf 1204848507
gc_upto 2017946623
odd 2140225974
is_pm1 2306846071
lgpol 2769897155
isintzero 2910645826
bit_accuracy 3222115783
gc_INT 4195097496
prec2lg 4749080804
is_const_t 5001754247
degpol 5643399960
icopy_avma 8133599997
remsBIL 8395829262
divsBIL 8490330592
isonstack 8501733171
is_recursive_t 9576052734

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