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 30851-7844d7b3a5) Lines: 1421 1535 92.6 %
Date: 2026-05-02 09:26:58 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 1887
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 5842
FqX_get_red 6090
gal_get_p 6118
gval 6237
FqXn_expint 6590
gal_get_orders 6706
is_extscalar_t 6904
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 10157
ZX_equal1 10488
gchar_get_Ui 10983
vec_shorten 11555
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
FqXQ_mul 22766
RgM_fpnorml2 22788
nf_get_Tr 23351
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 27873
absfrac_shallow 28237
gequalgs 29176
zerovec_block 29654
gener_Fq_local 29946
gchar_get_basis 32816
gal_get_roots 32843
F2xqX_div 33173
ndec2prec 33356
mkcolcopy 33583
Qtoss 35364
gal_get_pol 36427
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37150
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 38131
FqX_div 38568
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41626
znstar_get_Ui 46788
FqX_degfact 47786
pari_calloc 48120
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58510
err_get_num 62596
RgX_fpnorml2 63070
bid_get_gen 64274
nf_get_ramified_primes 64641
RgX_is_rational 68292
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 75748
bnr_get_mod 77119
gal_get_group 80415
mkcol3 88314
cyclic_perm 99932
gtou 100719
mkcol4 103467
zv_to_zx 104146
mkmoo 108906
zeromat 109018
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114542
Q_abs_shallow 120238
mkmatcopy 122303
mkveccopy 122528
FqX_add 127694
RgXQX_rem 127915
rnf_get_map 135659
zeroser 139013
idealred 139136
FqX_factor 140960
RgV_is_QV 142043
get_FpXQX_mod 146583
FlxqX_div_pre 165412
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 220747
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234282
zero_Flm_copy 238307
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249621
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264435
bnr_get_no 277486
gchar_get_zm 281911
bnf_get_tuN 283003
bnf_get_fu_nocheck 289092
bnf_get_tuU 303588
nf_get_G 304826
vec_prepend 313929
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337206
upr_norm 346136
RgX_renormalize 349807
FqX_mul 368760
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385007
RgX_is_QX 400067
ZM_hnfrem 401379
abgrp_get_no 406733
perm_conj 418299
FqX_Fq_mul 427308
FqX_extgcd 447453
nf_get_disc 464176
precdbl 476398
RgX_shift_inplace 479449
RgX_shift_inplace_init 479449
Z_issquare 509453
nf_get_sign 519602
mkvec3s 524441
addmuliu 541589
ellff_get_a4a6 551476
gdivsg 561181
zv_to_ZV 569244
FqX_Fp_mul 576281
vecsmall_to_vec 578043
prec2nbits_mul 581097
vecsmall_ei 585134
ZM_ZV_mod 610708
RgC_fpnorml2 619941
powIs 620095
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755037
gcmpgs 761930
row 763901
rnf_get_nf 786086
zero_F2m_copy 845303
FpXX_renormalize 849322
zeropadic 856935
affgr 899650
gmin_shallow 901219
ellinf 913932
ZXQ_sqr 961462
cgetc 975445
Flx_lead 1069642
polx_F2x 1079430
pr_norm 1090551
Flx_constant 1091739
Fp_invsafe 1097244
sstoQ 1097313
Flx_mulu 1105402
vecsmall_max 1177727
mkfracss 1209563
RgV_isscalar 1210270
gen_I 1268853
RgX_is_monomial 1328258
mkoo 1332116
bnf_get_sunits 1367774
rnf_get_absdegree 1392746
bnr_get_nf 1399078
constant_coeff 1445627
Rg_col_ei 1451090
inf_get_sign 1453248
vecsmall_concat 1464668
nf_get_varn 1503828
guncloneNULL_deep 1513588
bid_get_mod 1521921
F2m_flip 1554550
F2v_flip 1554550
F2x_flip 1554550
F2x_div 1572063
uutoQ 1602144
nf_get_roots 1629093
bnf_get_gen 1680324
zv_copy 1687907
vec_ei 1714757
mkvecsmall5 1718706
gsubgs 1731062
nf_get_roundG 1748834
abgrp_get_gen 1765038
ellff_get_field 1790636
modpr_get_p 1887627
get_F2x_degree 1928585
killblock 1959691
Flx_div 1999812
ellnf_get_nf 2027253
bnr_get_bid 2046093
Flv_copy 2059171
ulogint 2098950
ell_get_j 2126269
bid_get_MOD 2157254
bid_get_sprk 2157988
ZXQ_mul 2166458
get_F2x_var 2168731
bid_get_fact2 2201575
gc_slice 2211567
pol_xn 2254011
pari_realloc_ip 2347938
bid_get_archp 2397119
bid_get_fact 2498930
rnf_get_degree 2506335
bnr_get_cyc 2522568
ell_get_b4 2550293
mul_content 2657723
cyc_get_expo 2757549
hash_str 2782958
sqrtnr 2810666
bnr_get_clgp 2830251
zero_Flm 2830933
rnf_get_pol 2845192
vecslicepermute 2857554
znstar_get_pe 2869063
F2x_equal1 2873488
bnf_get_logfu 2874755
RgX_coeff 2889731
gisdouble 2995565
Fq_red 3106326
bit_accuracy_mul 3175733
ZV_to_zv 3211716
identity_perm 3243235
F3m_coeff 3255605
zero_Flx 3255700
mkpolmod 3262545
identity_zv 3267597
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307556
get_FpX_mod 3387866
vec_append 3469027
zero_F2v 3656693
bid_get_U 3680232
bnf_get_cyc 3686612
bnr_get_bnf 3710948
nf_get_index 3713826
perm_inv 3747380
pol_1 3753746
ell_get_b6 3863192
pol_x 3865396
mulsubii 3893942
vec_to_vecsmall 4041803
vecsmall_append 4114773
F2x_equal 4192081
sqrfrac 4206145
mkcol2s 4416244
FpXQX_renormalize 4688788
pol1_F2x 4768568
mkmat 4781699
qfb_disc3 4995358
mkfraccopy 5009291
is_rational_t 5020003
bnf_get_clgp 5375480
nf_get_zkprimpart 5416529
nf_get_zkden 5462376
FpX_div 5582219
bid_get_cyc 5739812
bid_get_grp 5804676
pari_stack_delete 5890495
col_ei 5925711
isintm1 6087060
pari_stack_init 6342742
Flm_copy 6434615
sqrti 6613341
get_FpX_var 6952073
get_FpX_degree 6969287
RgX_div 6998920
vecsmall_lexcmp 7043256
ZM_lll 7136599
RgX_gtofp 7166335
znstar_get_faN 7334819
vecsmall_copy 7341084
ell_get_b2 7371418
ZX_is_monic 7670792
zc_to_ZC 7910150
vecsmall_to_col 7924696
znstar_get_conreycyc 7982108
mkintmod 8066946
checkell_i 8103995
Q_abs 8125573
ZV_ZV_mod 8147179
Flx_equal1 8200412
RgM_gtofp 8257963
F2m_coeff 8363825
Flm_row 8743618
cxtofp 9093917
veclast 9374241
ismpzero 9712758
is_intreal_t 9712886
const_col 9730119
nf_get_invzk 9775401
bnf_get_nf 9866312
RgM_dimensions 9955103
mkvec4 10156579
ell_get_a4 10325142
ell_get_a6 10371102
mkcol 10656575
ZC_hnfrem 10697390
mul_denom 10753702
ell_get_c4 11018110
ell_get_a2 11108724
Fp_addmul 11306772
ser_isexactzero 11434317
gc_INT_affii 11574887
vectrunc_init 11767321
pr_get_gen 12072567
abgrp_get_cyc 12231256
F2x_clear 12362296
F2v_clear 12362297
nbits2nlong 12770978
ell_get_a3 12863775
zeropol 12923959
ell_get_c6 13474834
gmax_shallow 13510228
modpr_get_T 13867090
zeromatcopy 14379410
closure_get_frame 14692188
rowpermute 14759505
ell_get_type 14946026
Fp_div 15035225
Fp_divu 15129740
mkvec5 15187658
vectrunc_append 15856690
pr_get_e 16167183
ell_get_disc 16816401
matslice 16824947
ell_get_a1 17049208
pr_is_inert 17224277
pol0_F2x 17358057
normalize_frac 17574323
isint1 17996467
Fp_center_i 18054061
cxcompotor 18239496
qfb_disc 18502532
mkvecsmall4 18658090
const_vecsmall 18861562
Fp_double 20986851
vecpermute 21108085
Flx_div_pre 21726470
nf_get_M 21741095
RgM_shallowcopy 22228745
RgX_is_ZX 22392246
Fp_inv 23415311
nf_get_r1 23466151
ZV_isscalar 23675219
gmulgs 23812821
get_Flx_mod 25513267
pr_get_f 26444310
RgX_equal_var 27139599
pol_0 27228152
shallowcopy 27897302
mkqfb 27928798
zerovec 29348530
modpr_get_pr 31235764
hash_str_len 31620747
submulii 31985143
RgV_is_ZV 32097183
Fp_neg 32670131
mkmat2 33655966
RgC_gtofp 34033555
const_vec 34645502
polx_Flx 37511692
lincombii 38267348
znstar_get_N 38658713
zero_zv 39510625
mkfrac 42732773
powii 43130124
is_vec_t 44032263
closure_is_variadic 45951971
absfrac 47978491
guncloneNULL 49245531
pr_get_tau 49773253
ell_is_inf 50232547
mkmat22 50270931
QV_isscalar 54419541
pol1_Flx 55766989
addmuliu_inplace 59624333
submuliu_inplace 60126385
is_real_t 61900635
zero_Flv 61989637
Fp_sqr 64170199
qfb_is_qfi 64509022
F2x_copy 64598104
Fp_mulu 64917141
gtodouble 66257336
get_Flx_var 68290740
mkvec 68961648
nf_get_degree 71378614
Fp_center 77291819
vecsmallpermute 78755961
rowslice 79448887
perm_mul 80952435
get_Flx_degree 81855659
Fp_red 82933448
gtos 85878493
sqrtr 87176960
is_noncalc_t 88519577
mkcomplex 92022103
pr_get_p 92760410
cxnorm 94250451
dbllog2r 94344219
nf_get_pol 98129205
vecsmalltrunc_append 100887564
gc_all 102463826
RgX_copy 102876987
mkvecsmall3 103271212
F2v_set 104116374
cgiv 105493156
prec2nbits 106954508
vecsmall_prefixcmp 108088071
pol0_Flx 111729448
mkvec3 118699313
gaddgs 123271099
both_odd 123483542
zerocol 125186743
F2x_renormalize 127812511
nchar2nlong 127853472
F2x_set 129973159
equalim1 139547066
mkvecsmall 140445771
bit_prec 143390093
FpX_renormalize 147090728
mkcol2 157067522
ZX_renormalize 157592808
nbrows 158342130
leading_coeff 169745244
Flx_copy 175925875
Fp_add 183570468
nbits2prec 189000203
Fp_sub 201734206
Fp_mul 203910074
mkvec2 215165745
vecsmalltrunc_init 243720563
gc_GEN 247160176
mkvecsmall2 257022294
gtofp 257202040
gmulgu 283360013
closure_get_data 306107240
closure_get_oper 306124960
closure_codestr 306139752
is_universal_constant 326479333
lgcols 352763150
closure_arity 356589647
is_scalar_t 404087435
lg_increase 443409465
bin_copy 473103740
pari_free 487465708
is_bigint 574363305
leafcopy_avma 592635150
vecslice 657172858
F2v_coeff 664446254
F2x_coeff 671014360
pari_malloc 723425204
is_matvec_t 744246716
pari_stack_new 910644749
GENbinbase 919448849
pari_stack_alloc 1006005552
pari_stack_base 1011860396
gc_leaf 1159678525
equali1 1172044987
nbits2extraprec 1497418660
gc_upto 1973239938
odd 2125372225
is_pm1 2217852476
lgpol 2623183163
isintzero 2848071808
bit_accuracy 3146251885
gc_INT 4139742539
prec2lg 4565266399
is_const_t 5002459536
degpol 5508807879
icopy_avma 8055374370
remsBIL 8149184356
divsBIL 8240907719
isonstack 8361985448
is_recursive_t 9115778336

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