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 30673-b6380924e9) Lines: 1423 1535 92.7 %
Date: 2026-02-08 09:23:25 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
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
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 1834
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 13635
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15435
znstar_get_gen 16150
gchar_get_cyc 16177
mkmat3 17001
zeropadic_shallow 17150
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 22084
gtomp 22428
RgM_fpnorml2 22662
FqXQ_mul 22766
ZV_dvd 23485
gal_get_mod 23758
FqX_neg 24956
FqX_red 25354
bnf_get_fu 25858
nfV_to_scalar_or_alg 26299
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 33551
Qtoss 35364
gal_get_pol 36316
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37079
gchar_get_nc 37261
F2v_to_F2x 37571
FqX_rem 37743
FqX_div 38569
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47734
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58504
RgX_fpnorml2 61600
err_get_num 62550
bid_get_gen 64274
nf_get_ramified_primes 64645
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 75643
bnr_get_mod 77119
gal_get_group 80387
mkcol3 88314
cyclic_perm 99911
gtou 100712
mkcol4 103467
zv_to_zx 104146
mkmoo 108796
zeromat 109105
RgV_isin 110144
RgV_isin_i 110144
mkvec2copy 114524
Q_abs_shallow 120241
mkmatcopy 122282
mkveccopy 122521
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138435
zeroser 138943
RgV_is_QV 140736
FqX_factor 140960
get_FpXQX_mod 146583
FlxqX_div_pre 165415
znstar_get_U 176107
rowslicepermute 185040
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200429
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220251
mkcol6 232470
ellR_get_prec 232750
zero_Flm_copy 238232
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 277485
gchar_get_zm 281911
bnf_get_tuN 283003
bnf_get_fu_nocheck 289094
bnf_get_tuU 303587
nf_get_G 304893
vec_prepend 314002
get_FlxqX_degree 317565
rnf_get_polabs 327628
Flx_constant 334020
cxtoreal 337207
upr_norm 346133
RgX_renormalize 349807
abgrp_get_no 354946
ZM_hnfrem 363795
FqX_mul 367710
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384946
RgX_is_QX 399934
perm_conj 418299
FqX_Fq_mul 427286
FqX_extgcd 444771
Z_issquare 457641
nf_get_disc 463486
precdbl 475398
RgX_shift_inplace 479369
RgX_shift_inplace_init 479369
zv_to_ZV 502982
vecsmall_to_vec 511781
nf_get_sign 519551
mkvec3s 524441
gdivsg 531590
addmuliu 535808
FqX_Fp_mul 571665
prec2nbits_mul 581163
vecsmall_ei 584689
ZM_ZV_mod 596652
RgC_fpnorml2 619852
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 754843
gcmpgs 761928
row 763899
rnf_get_nf 786086
ellff_get_a4a6 800026
zero_F2m_copy 845014
FpXX_renormalize 849903
zeropadic 857681
gmin_shallow 877789
affgr 899594
ZXQ_sqr 960440
cgetc 975460
Flx_lead 978639
polx_F2x 1073136
pr_norm 1090474
sstoQ 1097313
Fp_invsafe 1100354
Flx_mulu 1105452
vecsmall_max 1164187
mkfracss 1209563
RgV_isscalar 1210270
gen_I 1269731
RgX_is_monomial 1331362
mkoo 1331868
bnf_get_sunits 1367778
rnf_get_absdegree 1392746
bnr_get_nf 1399080
zero_Flx 1426890
constant_coeff 1441436
Rg_col_ei 1450973
inf_get_sign 1452919
vecsmall_concat 1464227
guncloneNULL_deep 1487674
nf_get_varn 1503776
bid_get_mod 1521922
F2m_flip 1553358
F2v_flip 1553358
F2x_flip 1553358
F2x_div 1556934
uutoQ 1602144
nf_get_roots 1628966
bnf_get_gen 1680318
vec_ei 1713906
mkvecsmall5 1717532
gsubgs 1724812
ulogint 1734416
nf_get_roundG 1748201
abgrp_get_gen 1765028
ellinf 1869969
modpr_get_p 1887627
get_F2x_degree 1929026
killblock 1949384
Flx_div 1998056
ellnf_get_nf 2027262
ellff_get_field 2036867
bnr_get_bid 2046089
ell_get_j 2126269
bid_get_MOD 2157262
bid_get_sprk 2157988
ZXQ_mul 2161218
zv_copy 2183745
bid_get_fact2 2201582
gc_slice 2204425
pol_xn 2249545
pari_realloc_ip 2349388
bid_get_archp 2397129
bid_get_fact 2498948
get_F2x_mod 2499418
rnf_get_degree 2506335
bnr_get_cyc 2522574
get_F2x_var 2534026
ell_get_b4 2550216
Flv_copy 2555005
mul_content 2657114
RgX_coeff 2669861
vecslicepermute 2691878
cyc_get_expo 2757553
hash_str 2760614
perm_inv 2782219
sqrtnr 2810322
bnr_get_clgp 2830260
zero_Flm 2830891
rnf_get_pol 2845192
znstar_get_pe 2869063
F2x_equal1 2874250
bnf_get_logfu 2874769
gisdouble 2996969
mkpolmod 3103715
Fq_red 3106551
bit_accuracy_mul 3175484
ZV_to_zv 3211716
identity_perm 3242614
F3m_coeff 3255863
identity_zv 3266965
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3394365
vec_append 3464679
zero_F2v 3647476
bid_get_U 3680240
bnf_get_cyc 3686155
bnr_get_bnf 3710947
nf_get_index 3711415
pol_1 3755875
pol_x 3857355
ell_get_b6 3863115
mulsubii 3883164
pol1_F2x 3958109
vec_to_vecsmall 4036961
vecsmall_append 4114665
sqrfrac 4148301
vecsmall_copy 4403925
mkcol2s 4416244
F2x_equal 4609752
FpXQX_renormalize 4694428
mkmat 4750902
qfb_disc3 4995872
mkfraccopy 4999937
is_rational_t 5032762
bnf_get_clgp 5375016
nf_get_zkprimpart 5414082
nf_get_zkden 5459829
FpX_div 5581279
checkell_i 5593282
isintm1 5710343
bid_get_cyc 5739838
pari_stack_delete 5802961
bid_get_grp 5804693
col_ei 5924591
pari_stack_init 6352797
get_FpX_degree 6424550
Flm_copy 6433777
sqrti 6610404
get_FpX_var 6958218
RgX_div 6997996
vecsmall_lexcmp 7043256
ell_get_a2 7106188
ZM_lll 7118078
RgX_gtofp 7145479
znstar_get_faN 7334819
ell_get_b2 7371022
ZX_is_monic 7374289
zc_to_ZC 7824530
vecsmall_to_col 7838709
znstar_get_conreycyc 7982108
F2m_coeff 8035735
Q_abs 8062715
mkintmod 8070720
ZV_ZV_mod 8131972
RgM_gtofp 8258619
Flx_equal1 8330175
gc_INT_affii 8491338
ell_get_a4 8536729
Flm_row 8742104
ell_get_a3 8814048
ell_get_a1 8997080
cxtofp 9079074
veclast 9372721
ismpzero 9584661
is_intreal_t 9584769
const_col 9729661
RgM_dimensions 9741729
nf_get_invzk 9767663
bnf_get_nf 9865151
mkvec4 10094990
ser_isexactzero 10120326
ell_get_a6 10370967
mkcol 10639818
ZC_hnfrem 10697539
mul_denom 10707670
ell_get_c4 11017736
Fp_addmul 11226513
vectrunc_init 11766832
pr_get_gen 12071388
abgrp_get_cyc 12230837
F2x_clear 12352318
F2v_clear 12352323
ell_get_type 12498939
nbits2nlong 12757687
pol0_F2x 13198157
ell_get_c6 13474203
gmax_shallow 13510199
modpr_get_T 13867174
zeromatcopy 14250724
rowpermute 14707634
closure_get_frame 14717418
Fp_div 15035267
Fp_divu 15129806
mkvec5 15185781
vectrunc_append 15855474
pr_get_e 16162083
ell_get_disc 16814926
matslice 16826370
normalize_frac 17206801
pr_is_inert 17224290
isint1 17586402
Fp_center_i 18046135
cxcompotor 18209924
qfb_disc 18502583
mkvecsmall4 18686652
const_vecsmall 19706376
vecpermute 20548819
Fp_double 20821997
Flx_div_pre 21690973
nf_get_M 21745303
RgM_shallowcopy 22179970
RgX_is_ZX 22423281
gmulgs 22643091
Fp_inv 23442099
nf_get_r1 23465761
ZV_isscalar 23674568
get_Flx_mod 25598166
pr_get_f 26443394
RgX_equal_var 26883018
shallowcopy 27632225
mkqfb 27929972
zerovec 29292174
modpr_get_pr 31236673
Fp_neg 31481314
hash_str_len 31632025
submulii 31982591
RgV_is_ZV 32160188
mkmat2 33653930
RgC_gtofp 34037626
const_vec 34568922
zero_zv 36725331
polx_Flx 37488542
lincombii 38248022
znstar_get_N 38658713
mkfrac 41647502
zeropol 42353431
powii 43130486
is_vec_t 43953236
closure_is_variadic 45906351
absfrac 46540048
guncloneNULL 48002727
pr_get_tau 49768828
mkmat22 50296296
ell_is_inf 52404329
QV_isscalar 54416491
pol1_Flx 55062426
zero_Flv 59665911
addmuliu_inplace 59668570
F2x_copy 59734893
submuliu_inplace 60158133
gtodouble 60784196
is_real_t 62059886
qfb_is_qfi 62323178
Fp_sqr 63984160
get_Flx_var 68362051
Fp_mulu 70241367
mkvec 71282172
nf_get_degree 71370459
Fp_center 77373345
vecsmallpermute 78728490
rowslice 79358646
sqrtr 80377732
perm_mul 80923873
Fp_red 82194086
pol_0 82787564
get_Flx_degree 83643437
is_noncalc_t 85781384
gtos 85855693
cxnorm 91198908
mkcomplex 91608650
pr_get_p 92750831
dbllog2r 92819924
nf_get_pol 98109655
vecsmalltrunc_append 100902446
F2v_set 101400956
cgiv 102674864
RgX_copy 103403239
pol0_Flx 103430711
prec2nbits 103972616
mkvecsmall3 104190195
vecsmall_prefixcmp 108088071
gc_all 109641177
F2x_renormalize 114421253
mkvec3 122121904
zerocol 122344884
gaddgs 123248639
both_odd 124200614
F2x_set 124571054
nchar2nlong 127570221
mkvecsmall 131592982
equalim1 139505383
bit_prec 143272058
FpX_renormalize 144217279
ZX_renormalize 155031460
mkcol2 156931046
nbrows 157484005
leading_coeff 170217993
Flx_copy 173230294
Fp_add 181122361
nbits2prec 186143782
mkvec2 186957169
vecsmalltrunc_init 193420112
Fp_mul 200803601
Fp_sub 202936399
mkvecsmall2 234975494
gtofp 254398445
gc_GEN 255507153
gmulgu 283104681
closure_get_data 321620813
closure_get_oper 321653371
closure_codestr 321684046
lg_increase 325127611
is_universal_constant 326524739
lgcols 351671105
closure_arity 372066523
is_scalar_t 375681458
bin_copy 496020085
pari_free 509494351
is_bigint 563420443
leafcopy_avma 577612082
vecslice 656544228
is_matvec_t 659003788
F2v_coeff 661302888
F2x_coeff 667920541
pari_malloc 745448287
pari_stack_new 926487480
GENbinbase 961818173
pari_stack_alloc 1021755444
pari_stack_base 1027528173
gc_leaf 1142649276
equali1 1174054756
nbits2extraprec 1458476009
gc_upto 1955471483
odd 2091835967
is_pm1 2206456217
lgpol 2693389941
isintzero 2845669208
bit_accuracy 3156651612
gc_INT 4113487729
prec2lg 4470712924
is_const_t 4900576244
degpol 5511974345
remsBIL 8001856189
icopy_avma 8042458364
divsBIL 8093021889
isonstack 8283117579
is_recursive_t 9239090206

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