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 30759-17b423fb9b) Lines: 1421 1535 92.6 %
Date: 2026-03-20 09:26:27 Functions: 650 707 91.9 %
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
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
closure_get_code 28
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
zero_F2x 1181
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
rnf_get_idealdisc 1386
rnf_get_alpha 1428
ellQp_get_zero 1463
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_get_sfu 1743
gchar_set_evalprec 1813
mkintmodu 1834
gchar_get_nm 1869
pari_realloc 1880
RgXQX_div 1904
mkpadic 2009
gchar_get_nalg 2044
gchar_set_nf 2110
gchar_set_u0 2121
vecreverse_inplace 2605
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2876
gchar_set_nfprec 2968
vecsmall_reverse 3052
vecsmall_to_vec_inplace 3304
gchar_get_m0 3318
pari_err_TYPE2 3493
get_FpXQX_degree 3589
vecsmall_min 3710
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
matpascal 4683
rnf_get_zk 4830
rnf_get_nfvarn 4886
idealchineseinit 5427
pari_stack_pushp 5821
FqX_get_red 6090
gal_get_p 6118
gval 6230
FqXn_expint 6590
gal_get_orders 6706
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 8120
gchar_get_mod 8225
locs_get_mod 8225
ndec2nbits 8270
FqX_gcd 8288
bnf_get_no 8372
vectrunc_append_batch 9667
prec2ndec 9778
cgetalloc 10136
ZX_equal1 10488
gchar_get_Ui 10983
vec_shorten 11556
R_abs_shallow 13097
gchar_get_nfprec 13468
closure_get_dbg 13660
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15491
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 20025
FpXY_Fq_evaly 20587
rnf_get_nfdegree 21455
FqX_mulu 21942
gtomp 22428
RgM_fpnorml2 22655
FqXQ_mul 22766
nf_get_Tr 23282
ZV_dvd 23485
gal_get_mod 23870
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
gchar_get_basis 32816
gal_get_roots 32844
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33582
Qtoss 35364
gal_get_pol 36428
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37150
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 38045
FqX_div 38569
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47756
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58510
RgX_fpnorml2 61606
err_get_num 62596
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68157
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 75754
bnr_get_mod 77119
gal_get_group 80416
mkcol3 88314
cyclic_perm 99932
gtou 100684
mkcol4 103467
zv_to_zx 104146
mkmoo 108898
zeromat 109012
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114532
Q_abs_shallow 120214
mkmatcopy 122305
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138817
zeroser 138992
FqX_factor 140960
RgV_is_QV 142000
get_FpXQX_mod 146583
FlxqX_div_pre 165410
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200666
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220727
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234547
zero_Flm_copy 238309
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249622
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264435
bnr_get_no 277487
gchar_get_zm 281911
bnf_get_tuN 282996
bnf_get_fu_nocheck 289092
bnf_get_tuU 303578
nf_get_G 304866
vec_prepend 313921
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337203
upr_norm 346133
RgX_renormalize 349807
FqX_mul 367929
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385012
RgX_is_QX 399948
ZM_hnfrem 401391
abgrp_get_no 406734
perm_conj 418299
FqX_Fq_mul 427297
FqX_extgcd 445021
nf_get_disc 463507
precdbl 476369
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
Z_issquare 509455
nf_get_sign 519600
mkvec3s 524441
addmuliu 541581
gdivsg 559710
zv_to_ZV 569244
FqX_Fp_mul 572202
vecsmall_to_vec 578043
prec2nbits_mul 581095
vecsmall_ei 585161
powIs 588203
ZM_ZV_mod 610730
RgC_fpnorml2 619948
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698438
coltrunc_init 740257
logint 755020
gcmpgs 761919
row 763894
rnf_get_nf 786086
ellff_get_a4a6 800523
zero_F2m_copy 845280
FpXX_renormalize 849322
zeropadic 857682
gmin_shallow 898153
affgr 899594
ZXQ_sqr 960524
cgetc 975456
Flx_lead 1069186
polx_F2x 1078930
pr_norm 1090541
Flx_constant 1091650
Fp_invsafe 1097232
sstoQ 1097313
Flx_mulu 1105196
vecsmall_max 1177561
ellinf 1208509
mkfracss 1209563
RgV_isscalar 1210265
gen_I 1268868
RgX_is_monomial 1320025
mkoo 1332104
bnf_get_sunits 1367774
rnf_get_absdegree 1392746
bnr_get_nf 1399068
zero_Flx 1427031
constant_coeff 1441251
Rg_col_ei 1451122
inf_get_sign 1453243
vecsmall_concat 1464637
nf_get_varn 1503786
guncloneNULL_deep 1513198
bid_get_mod 1521920
F2m_flip 1554066
F2v_flip 1554066
F2x_flip 1554066
F2x_div 1571120
uutoQ 1602144
nf_get_roots 1628903
bnf_get_gen 1680317
vec_ei 1714734
mkvecsmall5 1718718
gsubgs 1731936
nf_get_roundG 1748552
abgrp_get_gen 1765030
modpr_get_p 1887626
get_F2x_degree 1928531
killblock 1960271
Flx_div 1999816
ellnf_get_nf 2027241
ellff_get_field 2038563
bnr_get_bid 2046037
ulogint 2072659
ell_get_j 2126269
bid_get_MOD 2157246
bid_get_sprk 2157969
ZXQ_mul 2166171
zv_copy 2184152
bid_get_fact2 2201562
gc_slice 2211145
pol_xn 2252811
pari_realloc_ip 2358334
bid_get_archp 2397117
get_F2x_mod 2490590
bid_get_fact 2498935
rnf_get_degree 2506335
bnr_get_cyc 2522575
get_F2x_var 2536784
ell_get_b4 2550293
Flv_copy 2555418
mul_content 2657622
cyc_get_expo 2757474
hash_str 2757652
sqrtnr 2810741
bnr_get_clgp 2830248
zero_Flm 2831133
rnf_get_pol 2845192
vecslicepermute 2858607
znstar_get_pe 2869063
F2x_equal1 2873449
bnf_get_logfu 2874761
RgX_coeff 2889731
gisdouble 2996317
mkpolmod 3075605
Fq_red 3106480
bit_accuracy_mul 3175715
ZV_to_zv 3211715
identity_perm 3243521
F3m_coeff 3255557
identity_zv 3267882
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3387860
vec_append 3469000
zero_F2v 3656649
bid_get_U 3680220
bnf_get_cyc 3686603
bnr_get_bnf 3710947
nf_get_index 3712014
perm_inv 3747573
pol_1 3752489
pol_x 3860469
ell_get_b6 3863192
mulsubii 3893620
pol1_F2x 3951371
vec_to_vecsmall 4039444
vecsmall_append 4114708
sqrfrac 4151045
mkcol2s 4416244
F2x_equal 4664730
FpXQX_renormalize 4693015
mkmat 4780243
qfb_disc3 4995146
mkfraccopy 4999659
is_rational_t 5017728
vecsmall_copy 5369909
bnf_get_clgp 5375466
nf_get_zkprimpart 5416280
nf_get_zkden 5462101
FpX_div 5581988
checkell_i 5593751
bid_get_cyc 5739845
bid_get_grp 5804696
pari_stack_delete 5899659
col_ei 5925283
isintm1 6086528
pari_stack_init 6375905
Flm_copy 6434364
sqrti 6612815
get_FpX_var 6954635
get_FpX_degree 6969416
RgX_div 6997065
vecsmall_lexcmp 7043253
ell_get_a2 7106322
ZM_lll 7117834
RgX_gtofp 7163871
ZX_is_monic 7319915
znstar_get_faN 7334819
ell_get_b2 7371385
zc_to_ZC 7910496
vecsmall_to_col 7925032
znstar_get_conreycyc 7982108
Q_abs 8061035
mkintmod 8065668
ZV_ZV_mod 8147267
Flx_equal1 8195321
RgM_gtofp 8257878
F2m_coeff 8358644
ell_get_a4 8536863
Flm_row 8743526
ell_get_a3 8814545
ell_get_a1 8997577
cxtofp 9093208
veclast 9374222
ismpzero 9702610
is_intreal_t 9702725
const_col 9730122
nf_get_invzk 9774678
bnf_get_nf 9866313
RgM_dimensions 9955185
mkvec4 10150254
ell_get_a6 10371101
mkcol 10653492
ZC_hnfrem 10697659
mul_denom 10709875
ell_get_c4 11019122
Fp_addmul 11234461
ser_isexactzero 11434254
gc_INT_affii 11582918
vectrunc_init 11768299
pr_get_gen 12072793
abgrp_get_cyc 12231299
F2x_clear 12361620
F2v_clear 12361631
ell_get_type 12499893
nbits2nlong 12721101
zeropol 12867426
pol0_F2x 13230149
ell_get_c6 13474847
gmax_shallow 13510227
modpr_get_T 13867071
zeromatcopy 14378090
closure_get_frame 14735125
rowpermute 14759552
Fp_div 15034624
Fp_divu 15129117
mkvec5 15187448
vectrunc_append 15858016
pr_get_e 16167594
ell_get_disc 16816835
matslice 16826292
pr_is_inert 17224247
normalize_frac 17311745
isint1 17987139
Fp_center_i 18031131
cxcompotor 18238227
qfb_disc 18502611
mkvecsmall4 18690548
const_vecsmall 18860908
Fp_double 20840027
vecpermute 21109605
Flx_div_pre 21709052
nf_get_M 21745610
RgM_shallowcopy 22235705
RgX_is_ZX 22315383
Fp_inv 23436366
nf_get_r1 23466113
ZV_isscalar 23675071
gmulgs 23869207
get_Flx_mod 25501298
pol_0 26065148
pr_get_f 26444551
RgX_equal_var 26880188
shallowcopy 27898542
mkqfb 27928483
zerovec 29348326
modpr_get_pr 31236485
Fp_neg 31477297
hash_str_len 31655312
submulii 31985063
RgV_is_ZV 32095983
mkmat2 33666206
RgC_gtofp 34035386
const_vec 34678413
zero_zv 37315939
polx_Flx 37500199
lincombii 38283294
znstar_get_N 38658713
mkfrac 41927396
powii 43130204
is_vec_t 43956069
closure_is_variadic 45931137
absfrac 46991350
ell_is_inf 49442751
pr_get_tau 49773766
guncloneNULL 49834028
mkmat22 50262310
QV_isscalar 54421558
pol1_Flx 54909603
addmuliu_inplace 59568844
zero_Flv 59758111
F2x_copy 59767622
submuliu_inplace 60079414
is_real_t 61899890
Fp_sqr 64193004
qfb_is_qfi 64523601
gtodouble 66244253
get_Flx_var 68380995
Fp_mulu 69243669
mkvec 69704064
nf_get_degree 71378692
Fp_center 77411294
vecsmallpermute 78763194
rowslice 79473581
perm_mul 80959545
get_Flx_degree 82516219
Fp_red 82931969
gtos 85865432
sqrtr 86881545
is_noncalc_t 88499367
mkcomplex 92005509
pr_get_p 92760894
cxnorm 94062642
dbllog2r 94327047
nf_get_pol 98123817
vecsmalltrunc_append 100874878
RgX_copy 102485661
gc_all 102551286
pol0_Flx 103190887
mkvecsmall3 103271179
F2v_set 104114870
cgiv 105490247
prec2nbits 106946619
vecsmall_prefixcmp 108088071
F2x_renormalize 112609949
mkvec3 120752863
gaddgs 123270551
both_odd 124216391
zerocol 125157050
F2x_set 126015688
nchar2nlong 127923676
mkvecsmall 131831166
equalim1 139568235
bit_prec 143404156
FpX_renormalize 145869181
ZX_renormalize 155185056
mkcol2 157004388
nbrows 158280650
leading_coeff 169335136
Flx_copy 173807871
Fp_add 181057115
nbits2prec 189004622
Fp_mul 201029194
Fp_sub 202585268
mkvec2 213057916
vecsmalltrunc_init 243361781
gc_GEN 247010877
mkvecsmall2 256231691
gtofp 257197562
gmulgu 283360013
closure_get_data 306112972
closure_get_oper 306128962
closure_codestr 306138688
is_universal_constant 326594606
lgcols 352704050
closure_arity 356597827
is_scalar_t 403468390
lg_increase 445147484
bin_copy 473131881
pari_free 487499879
is_bigint 574370346
leafcopy_avma 594963615
vecslice 657603006
F2v_coeff 664436085
F2x_coeff 671002976
pari_malloc 723582954
is_matvec_t 742935048
pari_stack_new 911079468
GENbinbase 919499343
pari_stack_alloc 1006409781
pari_stack_base 1012262349
gc_leaf 1144201244
equali1 1169376054
nbits2extraprec 1498114764
gc_upto 1956779061
odd 2124316712
is_pm1 2216806512
lgpol 2593635197
isintzero 2848998275
bit_accuracy 3132208984
gc_INT 4136778774
prec2lg 4566448973
is_const_t 5006444763
degpol 5519895493
icopy_avma 8051317548
remsBIL 8143645677
divsBIL 8234514201
isonstack 8328584858
is_recursive_t 9102717433

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