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 30764-6b81f1f3fa) Lines: 1422 1535 92.6 %
Date: 2026-03-26 09:27:02 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 11557
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 26299
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 33580
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 37849
FqX_div 38566
FqX_deriv 40061
mkcols 40411
bid_get_arch 41187
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 61607
err_get_num 62595
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68158
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 75751
bnr_get_mod 77118
gal_get_group 80416
mkcol3 88314
cyclic_perm 99932
gtou 100701
mkcol4 103467
zv_to_zx 104146
mkmoo 108899
zeromat 108949
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114527
Q_abs_shallow 120239
mkmatcopy 122303
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138810
zeroser 138992
FqX_factor 140960
RgV_is_QV 141999
get_FpXQX_mod 146583
FlxqX_div_pre 165413
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200656
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220728
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234486
zero_Flm_copy 238310
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249624
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264435
bnr_get_no 277491
gchar_get_zm 281911
bnf_get_tuN 282997
bnf_get_fu_nocheck 289092
bnf_get_tuU 303579
nf_get_G 304790
vec_prepend 313928
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337206
upr_norm 346135
RgX_renormalize 349807
FqX_mul 367932
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384998
RgX_is_QX 399938
ZM_hnfrem 401378
abgrp_get_no 406732
perm_conj 418299
FqX_Fq_mul 427292
FqX_extgcd 445019
nf_get_disc 463521
precdbl 476374
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
Z_issquare 509452
nf_get_sign 519600
mkvec3s 524441
addmuliu 541626
gdivsg 559711
zv_to_ZV 569244
FqX_Fp_mul 572198
vecsmall_to_vec 578043
prec2nbits_mul 581096
vecsmall_ei 585105
powIs 596435
ZM_ZV_mod 610710
RgC_fpnorml2 619953
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755015
gcmpgs 761915
row 763894
rnf_get_nf 786086
ellff_get_a4a6 800520
zero_F2m_copy 845274
FpXX_renormalize 849322
zeropadic 857644
gmin_shallow 898205
affgr 899594
ZXQ_sqr 960610
cgetc 975459
Flx_lead 1068828
polx_F2x 1074580
pr_norm 1090502
Flx_constant 1091597
Fp_invsafe 1097251
sstoQ 1097313
Flx_mulu 1105404
vecsmall_max 1177405
ellinf 1208495
mkfracss 1209563
RgV_isscalar 1210271
gen_I 1268873
RgX_is_monomial 1319980
mkoo 1332037
bnf_get_sunits 1367774
rnf_get_absdegree 1392746
bnr_get_nf 1399082
zero_Flx 1427188
constant_coeff 1441277
Rg_col_ei 1451078
inf_get_sign 1453178
vecsmall_concat 1464634
nf_get_varn 1503778
guncloneNULL_deep 1515439
bid_get_mod 1521920
F2m_flip 1553830
F2v_flip 1553830
F2x_flip 1553830
F2x_div 1559805
uutoQ 1602144
nf_get_roots 1628845
bnf_get_gen 1680322
vec_ei 1714799
mkvecsmall5 1718720
gsubgs 1731939
nf_get_roundG 1748469
abgrp_get_gen 1765034
modpr_get_p 1887626
get_F2x_degree 1928589
killblock 1961072
Flx_div 1999869
ellnf_get_nf 2027243
ellff_get_field 2038570
bnr_get_bid 2046093
ulogint 2094580
ell_get_j 2126269
bid_get_MOD 2157257
bid_get_sprk 2157978
ZXQ_mul 2166271
zv_copy 2184166
bid_get_fact2 2201579
gc_slice 2211150
pol_xn 2252844
pari_realloc_ip 2358261
bid_get_archp 2397137
get_F2x_mod 2490863
bid_get_fact 2498945
rnf_get_degree 2506335
bnr_get_cyc 2522569
get_F2x_var 2536859
ell_get_b4 2550293
Flv_copy 2555408
mul_content 2657517
cyc_get_expo 2757554
hash_str 2757660
sqrtnr 2810683
bnr_get_clgp 2830242
zero_Flm 2831149
rnf_get_pol 2845192
vecslicepermute 2858653
znstar_get_pe 2869063
F2x_equal1 2874045
bnf_get_logfu 2874776
RgX_coeff 2889731
gisdouble 2995974
mkpolmod 3075504
Fq_red 3106584
bit_accuracy_mul 3175715
ZV_to_zv 3211715
identity_perm 3243403
F3m_coeff 3255610
identity_zv 3267766
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3387872
vec_append 3469003
zero_F2v 3656431
bid_get_U 3680234
bnf_get_cyc 3686615
bnr_get_bnf 3710939
nf_get_index 3712028
perm_inv 3747443
pol_1 3752518
pol_x 3860462
ell_get_b6 3863192
mulsubii 3893322
pol1_F2x 3952116
vec_to_vecsmall 4039451
vecsmall_append 4114715
sqrfrac 4150957
mkcol2s 4416244
F2x_equal 4613787
FpXQX_renormalize 4693069
mkmat 4780138
qfb_disc3 4995182
mkfraccopy 4999607
is_rational_t 5017670
vecsmall_copy 5369860
bnf_get_clgp 5375485
nf_get_zkprimpart 5416318
nf_get_zkden 5462097
FpX_div 5582044
checkell_i 5593813
bid_get_cyc 5739749
bid_get_grp 5804699
pari_stack_delete 5905473
col_ei 5925266
isintm1 6086571
pari_stack_init 6376093
Flm_copy 6434665
sqrti 6612836
get_FpX_var 6954555
get_FpX_degree 6969394
RgX_div 6997065
vecsmall_lexcmp 7043177
ell_get_a2 7106327
ZM_lll 7117780
RgX_gtofp 7164054
ZX_is_monic 7319787
znstar_get_faN 7334819
ell_get_b2 7371374
zc_to_ZC 7910514
vecsmall_to_col 7925060
znstar_get_conreycyc 7982108
Q_abs 8060918
mkintmod 8065606
ZV_ZV_mod 8147245
Flx_equal1 8195942
RgM_gtofp 8257871
F2m_coeff 8356961
ell_get_a4 8536868
Flm_row 8743695
ell_get_a3 8814539
ell_get_a1 8997571
cxtofp 9092924
veclast 9374227
ismpzero 9702544
is_intreal_t 9702647
const_col 9730068
nf_get_invzk 9774968
bnf_get_nf 9866329
RgM_dimensions 9954953
mkvec4 10150207
ell_get_a6 10371106
mkcol 10653472
ZC_hnfrem 10697472
mul_denom 10709558
ell_get_c4 11019174
Fp_addmul 11214272
ser_isexactzero 11434254
gc_INT_affii 11581447
vectrunc_init 11766148
pr_get_gen 12072615
abgrp_get_cyc 12231283
F2x_clear 12361054
F2v_clear 12361059
ell_get_type 12500159
nbits2nlong 12723652
zeropol 12867439
pol0_F2x 13190708
ell_get_c6 13474924
gmax_shallow 13510228
modpr_get_T 13867118
zeromatcopy 14378033
closure_get_frame 14734671
rowpermute 14758994
Fp_div 15034861
Fp_divu 15129388
mkvec5 15187664
vectrunc_append 15858899
pr_get_e 16167468
ell_get_disc 16816704
matslice 16825546
pr_is_inert 17224398
normalize_frac 17311443
isint1 17987192
Fp_center_i 18039059
cxcompotor 18237737
qfb_disc 18502531
mkvecsmall4 18682681
const_vecsmall 18861359
Fp_double 20783240
vecpermute 21110265
Flx_div_pre 21711343
nf_get_M 21745939
RgM_shallowcopy 22235621
RgX_is_ZX 22315790
Fp_inv 23436226
nf_get_r1 23466408
ZV_isscalar 23675424
gmulgs 23866799
get_Flx_mod 25502513
pol_0 26065086
pr_get_f 26444367
RgX_equal_var 26880166
shallowcopy 27897797
mkqfb 27928443
zerovec 29348338
modpr_get_pr 31236594
Fp_neg 31479365
hash_str_len 31655256
submulii 31985063
RgV_is_ZV 32095985
mkmat2 33666276
RgC_gtofp 34035260
const_vec 34679013
zero_zv 37303906
polx_Flx 37502277
lincombii 38269440
znstar_get_N 38658713
mkfrac 41928570
powii 43130086
is_vec_t 43931316
closure_is_variadic 45930662
absfrac 46991076
ell_is_inf 49410570
pr_get_tau 49773827
guncloneNULL 49836582
mkmat22 50260922
QV_isscalar 54420178
pol1_Flx 54915506
F2x_copy 59021672
addmuliu_inplace 59557538
zero_Flv 59746823
submuliu_inplace 60063969
is_real_t 61899890
Fp_sqr 64267610
qfb_is_qfi 64531469
gtodouble 66248622
get_Flx_var 68385412
mkvec 69686233
nf_get_degree 71376849
Fp_mulu 71482681
Fp_center 77366563
vecsmallpermute 78758358
rowslice 79457264
perm_mul 80954695
Fp_red 82932971
get_Flx_degree 83653423
gtos 85865488
sqrtr 86938566
is_noncalc_t 88498848
mkcomplex 92007576
pr_get_p 92760991
cxnorm 94096764
dbllog2r 94331874
nf_get_pol 98121616
vecsmalltrunc_append 100859099
RgX_copy 102485554
gc_all 102551018
pol0_Flx 103155715
mkvecsmall3 103269149
F2v_set 104113526
cgiv 105478913
prec2nbits 106953828
vecsmall_prefixcmp 108088071
F2x_renormalize 111608226
gaddgs 123270575
both_odd 124053525
mkvec3 124153914
zerocol 125157345
F2x_set 125806850
nchar2nlong 127921450
mkvecsmall 131797294
equalim1 139567827
bit_prec 143406274
FpX_renormalize 145861646
ZX_renormalize 155212179
mkcol2 156988753
nbrows 158273803
leading_coeff 169338131
Flx_copy 173828277
Fp_add 181033831
nbits2prec 189012038
Fp_mul 201002475
Fp_sub 202778313
mkvec2 214795965
vecsmalltrunc_init 246943100
gc_GEN 247028436
mkvecsmall2 256202760
gtofp 257196956
gmulgu 283360013
closure_get_data 305905817
closure_get_oper 305926955
closure_codestr 305942149
is_universal_constant 326529449
lgcols 352695718
closure_arity 356391816
is_scalar_t 403468782
lg_increase 454586566
bin_copy 473134446
pari_free 487508079
is_bigint 574382229
leafcopy_avma 595040803
vecslice 657317584
F2v_coeff 664426063
F2x_coeff 671032431
pari_malloc 723593383
is_matvec_t 742768929
pari_stack_new 910975638
GENbinbase 919514883
pari_stack_alloc 1006282940
pari_stack_base 1012156613
gc_leaf 1148499621
equali1 1169415389
nbits2extraprec 1498327260
gc_upto 1956885369
odd 2126202027
is_pm1 2217698623
lgpol 2597150308
isintzero 2849549869
bit_accuracy 3128111960
gc_INT 4135910726
prec2lg 4565521681
is_const_t 5007735433
degpol 5533928640
icopy_avma 8051137693
remsBIL 8141654896
divsBIL 8232975936
isonstack 8331736482
is_recursive_t 9103620772

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