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 30835-e55edf4b45) Lines: 1421 1535 92.6 %
Date: 2026-04-26 09:26:37 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 6230
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 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 23350
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 33314
mkcolcopy 33587
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 38146
FqX_div 38567
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
FqX_degfact 47786
pari_calloc 48043
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58515
RgX_fpnorml2 61606
err_get_num 62596
bid_get_gen 64274
nf_get_ramified_primes 64643
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 75748
bnr_get_mod 77119
gal_get_group 80415
mkcol3 88314
cyclic_perm 99932
gtou 100695
mkcol4 103467
zv_to_zx 104146
mkmoo 108900
zeromat 108988
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114532
Q_abs_shallow 120243
mkmatcopy 122310
mkveccopy 122528
RgXQX_rem 127634
FqX_add 127694
rnf_get_map 135659
idealred 138820
zeroser 138992
FqX_factor 140960
RgV_is_QV 142002
get_FpXQX_mod 146583
FlxqX_div_pre 165407
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 220740
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234694
zero_Flm_copy 238313
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 277490
gchar_get_zm 281911
bnf_get_tuN 282992
bnf_get_fu_nocheck 289088
bnf_get_tuU 303577
nf_get_G 304808
vec_prepend 313918
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337206
upr_norm 346134
RgX_renormalize 349807
FqX_mul 368259
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385000
RgX_is_QX 399946
ZM_hnfrem 401399
abgrp_get_no 406732
perm_conj 418299
FqX_Fq_mul 427292
FqX_extgcd 445768
nf_get_disc 463573
precdbl 476398
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
Z_issquare 509456
nf_get_sign 519601
mkvec3s 524441
addmuliu 541563
ellff_get_a4a6 551455
gdivsg 561179
zv_to_ZV 569244
FqX_Fp_mul 573006
vecsmall_to_vec 578043
prec2nbits_mul 581095
vecsmall_ei 585157
ZM_ZV_mod 610691
RgC_fpnorml2 619945
powIs 620095
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755019
gcmpgs 761926
row 763902
rnf_get_nf 786086
zero_F2m_copy 845270
FpXX_renormalize 849322
zeropadic 857710
affgr 899608
gmin_shallow 899692
ellinf 913927
ZXQ_sqr 960612
cgetc 975445
Flx_lead 1069093
polx_F2x 1079657
pr_norm 1090571
Flx_constant 1091299
Fp_invsafe 1097239
sstoQ 1097313
Flx_mulu 1105373
vecsmall_max 1177430
mkfracss 1209563
RgV_isscalar 1210268
gen_I 1268882
RgX_is_monomial 1326858
mkoo 1332127
bnf_get_sunits 1367774
rnf_get_absdegree 1392746
bnr_get_nf 1399073
constant_coeff 1442666
Rg_col_ei 1451123
inf_get_sign 1453249
vecsmall_concat 1464669
nf_get_varn 1503763
guncloneNULL_deep 1507004
bid_get_mod 1521922
F2m_flip 1554550
F2v_flip 1554550
F2x_flip 1554550
F2x_div 1572512
uutoQ 1602144
nf_get_roots 1628850
bnf_get_gen 1680325
zv_copy 1687856
vec_ei 1714734
mkvecsmall5 1718695
gsubgs 1731922
nf_get_roundG 1748492
abgrp_get_gen 1765041
ellff_get_field 1790591
modpr_get_p 1887627
get_F2x_degree 1928543
killblock 1956854
Flx_div 1999789
ellnf_get_nf 2027235
bnr_get_bid 2046086
Flv_copy 2059106
ulogint 2081058
ell_get_j 2126269
bid_get_MOD 2157245
bid_get_sprk 2157981
ZXQ_mul 2166229
get_F2x_var 2168651
bid_get_fact2 2201562
gc_slice 2211533
pol_xn 2253509
pari_realloc_ip 2347943
bid_get_archp 2397076
bid_get_fact 2498905
rnf_get_degree 2506335
bnr_get_cyc 2522546
ell_get_b4 2550293
mul_content 2657293
cyc_get_expo 2757539
hash_str 2781045
sqrtnr 2810671
bnr_get_clgp 2830222
zero_Flm 2830924
rnf_get_pol 2845192
vecslicepermute 2859408
znstar_get_pe 2869063
F2x_equal1 2873725
bnf_get_logfu 2874745
RgX_coeff 2889731
gisdouble 2995785
mkpolmod 3075582
Fq_red 3106377
bit_accuracy_mul 3175715
ZV_to_zv 3211716
identity_perm 3243188
F3m_coeff 3255610
zero_Flx 3255648
identity_zv 3267552
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307647
get_FpX_mod 3387853
vec_append 3469010
zero_F2v 3656609
bid_get_U 3680230
bnf_get_cyc 3686613
bnr_get_bnf 3710948
nf_get_index 3711992
perm_inv 3747311
pol_1 3752518
ell_get_b6 3863192
pol_x 3865036
mulsubii 3892612
vec_to_vecsmall 4040785
vecsmall_append 4114731
F2x_equal 4193544
sqrfrac 4201787
mkcol2s 4416244
FpXQX_renormalize 4692298
pol1_F2x 4768191
mkmat 4780890
qfb_disc3 4995383
mkfraccopy 5006685
is_rational_t 5017711
bnf_get_clgp 5375484
nf_get_zkprimpart 5416353
nf_get_zkden 5462151
FpX_div 5582150
bid_get_cyc 5739768
bid_get_grp 5804618
pari_stack_delete 5874757
col_ei 5925202
isintm1 6086910
pari_stack_init 6347408
Flm_copy 6434429
sqrti 6612699
get_FpX_var 6952294
get_FpX_degree 6969261
RgX_div 6998185
vecsmall_lexcmp 7043236
ZM_lll 7136424
RgX_gtofp 7164613
ZX_is_monic 7319896
znstar_get_faN 7334819
vecsmall_copy 7341024
ell_get_b2 7371395
zc_to_ZC 7911098
vecsmall_to_col 7925642
znstar_get_conreycyc 7982108
mkintmod 8066637
Q_abs 8078454
checkell_i 8103924
ZV_ZV_mod 8147049
Flx_equal1 8195869
RgM_gtofp 8257880
F2m_coeff 8359538
Flm_row 8743361
cxtofp 9094703
veclast 9374230
ismpzero 9712908
is_intreal_t 9713011
const_col 9730135
nf_get_invzk 9774651
bnf_get_nf 9866273
RgM_dimensions 9955098
mkvec4 10156423
ell_get_a4 10325139
ell_get_a6 10371099
mkcol 10654057
ZC_hnfrem 10697390
mul_denom 10753406
ell_get_c4 11018498
ell_get_a2 11108721
Fp_addmul 11250492
ser_isexactzero 11434254
gc_INT_affii 11577974
vectrunc_init 11769005
pr_get_gen 12072500
abgrp_get_cyc 12231176
F2v_clear 12362146
F2x_clear 12362148
nbits2nlong 12748837
ell_get_a3 12863748
zeropol 12889567
ell_get_c6 13474148
gmax_shallow 13510226
modpr_get_T 13867042
zeromatcopy 14378930
closure_get_frame 14690226
rowpermute 14758757
ell_get_type 14945822
Fp_div 15033580
Fp_divu 15128047
mkvec5 15187648
vectrunc_append 15856265
pr_get_e 16167422
ell_get_disc 16815445
matslice 16825052
ell_get_a1 17049183
pr_is_inert 17224340
pol0_F2x 17356425
normalize_frac 17568128
Fp_center_i 17993210
isint1 17994630
cxcompotor 18241070
qfb_disc 18502540
mkvecsmall4 18648741
const_vecsmall 18860757
Fp_double 20827965
vecpermute 21113586
Flx_div_pre 21706352
nf_get_M 21741690
RgM_shallowcopy 22226167
RgX_is_ZX 22316045
Fp_inv 23412606
nf_get_r1 23466530
ZV_isscalar 23675448
gmulgs 23862762
get_Flx_mod 25498505
pr_get_f 26444561
RgX_equal_var 26880503
pol_0 27168660
shallowcopy 27896686
mkqfb 27928919
zerovec 29348349
modpr_get_pr 31236452
hash_str_len 31624122
submulii 31985063
RgV_is_ZV 32096667
Fp_neg 32668351
mkmat2 33656271
RgC_gtofp 34033332
const_vec 34637801
polx_Flx 37499569
lincombii 38265791
znstar_get_N 38658713
zero_zv 39511031
mkfrac 42556516
powii 43130031
is_vec_t 44025921
closure_is_variadic 45951336
absfrac 47729690
pr_get_tau 49773687
guncloneNULL 49825228
ell_is_inf 50170935
mkmat22 50256611
QV_isscalar 54419457
pol1_Flx 55724020
addmuliu_inplace 59551767
submuliu_inplace 60059723
is_real_t 61900625
zero_Flv 61989162
Fp_sqr 63998590
qfb_is_qfi 64538686
F2x_copy 64619151
gtodouble 66253283
Fp_mulu 66782887
get_Flx_var 68241752
mkvec 68920910
nf_get_degree 71375765
Fp_center 77210470
vecsmallpermute 78755387
rowslice 79455885
perm_mul 80951788
get_Flx_degree 82822044
Fp_red 82931542
gtos 85878158
sqrtr 87175829
is_noncalc_t 88515407
mkcomplex 92033609
pr_get_p 92761208
cxnorm 94253954
dbllog2r 94342197
nf_get_pol 98118709
vecsmalltrunc_append 100920480
gc_all 102447920
RgX_copy 102503822
mkvecsmall3 103253813
F2v_set 104115506
cgiv 105486320
prec2nbits 106957833
vecsmall_prefixcmp 108088071
pol0_Flx 111640219
mkvec3 121667283
both_odd 123208820
gaddgs 123271940
zerocol 125181104
F2x_renormalize 127794314
nchar2nlong 127840511
F2x_set 129950823
equalim1 139546835
mkvecsmall 140331685
bit_prec 143396137
FpX_renormalize 147160402
mkcol2 157016584
ZX_renormalize 157537898
nbrows 158338537
leading_coeff 169348915
Flx_copy 175794963
Fp_add 183344478
nbits2prec 189011956
Fp_sub 201906701
Fp_mul 203590939
mkvec2 211712743
vecsmalltrunc_init 236855505
gc_GEN 246913265
mkvecsmall2 256952850
gtofp 257167171
gmulgu 283360012
closure_get_data 305984098
closure_get_oper 306011750
closure_codestr 306037586
is_universal_constant 326472671
lgcols 352757928
closure_arity 356456992
is_scalar_t 403951873
lg_increase 426115354
bin_copy 472940186
pari_free 487298794
is_bigint 574400652
leafcopy_avma 592957697
vecslice 657417811
F2v_coeff 664441214
F2x_coeff 670982067
pari_malloc 723419727
is_matvec_t 743768438
pari_stack_new 910464475
GENbinbase 919116443
pari_stack_alloc 1005790461
pari_stack_base 1011664082
gc_leaf 1163409971
equali1 1171362673
nbits2extraprec 1497387790
gc_upto 1972649620
odd 2123544762
is_pm1 2218263671
lgpol 2625395441
isintzero 2848641763
bit_accuracy 3145804951
gc_INT 4137271829
prec2lg 4565375926
is_const_t 5001414232
degpol 5516892928
icopy_avma 8055434289
remsBIL 8149491169
divsBIL 8241167482
isonstack 8362558401
is_recursive_t 9111657770

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