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 30842-de08e65e1b) Lines: 1421 1535 92.6 %
Date: 2026-04-29 09:26:11 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 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
FqXQ_mul 22766
RgM_fpnorml2 22788
nf_get_Tr 23348
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 33356
mkcolcopy 33586
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 37933
FqX_div 38568
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41626
znstar_get_Ui 46788
FqX_degfact 47786
pari_calloc 48071
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58512
err_get_num 62595
RgX_fpnorml2 63069
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68291
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 77118
gal_get_group 80416
mkcol3 88314
cyclic_perm 99932
gtou 100707
mkcol4 103467
zv_to_zx 104146
mkmoo 108906
zeromat 108971
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114536
Q_abs_shallow 120232
mkmatcopy 122312
mkveccopy 122528
FqX_add 127694
RgXQX_rem 127915
rnf_get_map 135659
zeroser 139013
idealred 139132
FqX_factor 140960
RgV_is_QV 142002
get_FpXQX_mod 146583
FlxqX_div_pre 165408
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200649
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220745
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234206
zero_Flm_copy 238309
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249619
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 283004
bnf_get_fu_nocheck 289092
bnf_get_tuU 303586
nf_get_G 304796
vec_prepend 313922
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337205
upr_norm 346135
RgX_renormalize 349807
FqX_mul 368760
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385001
RgX_is_QX 400072
ZM_hnfrem 401371
abgrp_get_no 406725
perm_conj 418299
FqX_Fq_mul 427301
FqX_extgcd 447449
nf_get_disc 464177
precdbl 476406
RgX_shift_inplace 479448
RgX_shift_inplace_init 479448
Z_issquare 509446
nf_get_sign 519599
mkvec3s 524441
addmuliu 541644
ellff_get_a4a6 551461
gdivsg 561181
zv_to_ZV 569244
FqX_Fp_mul 576301
vecsmall_to_vec 578043
prec2nbits_mul 581094
vecsmall_ei 585172
ZM_ZV_mod 610678
RgC_fpnorml2 619946
powIs 620095
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755037
gcmpgs 761948
row 763877
rnf_get_nf 786086
zero_F2m_copy 845239
FpXX_renormalize 849322
zeropadic 857559
affgr 899650
gmin_shallow 901179
ellinf 913913
ZXQ_sqr 961452
cgetc 975444
Flx_lead 1069349
polx_F2x 1074711
pr_norm 1090506
Flx_constant 1091089
Fp_invsafe 1097240
sstoQ 1097313
Flx_mulu 1105440
vecsmall_max 1177568
mkfracss 1209563
RgV_isscalar 1210267
gen_I 1268887
RgX_is_monomial 1328268
mkoo 1332143
bnf_get_sunits 1367774
rnf_get_absdegree 1392746
bnr_get_nf 1399075
constant_coeff 1445641
Rg_col_ei 1451048
inf_get_sign 1453272
vecsmall_concat 1464640
nf_get_varn 1503815
guncloneNULL_deep 1513401
bid_get_mod 1521921
F2m_flip 1553961
F2v_flip 1553961
F2x_flip 1553961
F2x_div 1559207
uutoQ 1602144
nf_get_roots 1629068
bnf_get_gen 1680321
zv_copy 1688017
vec_ei 1714758
mkvecsmall5 1718723
gsubgs 1731059
nf_get_roundG 1748790
abgrp_get_gen 1765033
ellff_get_field 1790611
modpr_get_p 1887626
get_F2x_degree 1928628
killblock 1960146
Flx_div 1999744
ellnf_get_nf 2027238
bnr_get_bid 2046092
Flv_copy 2059272
ulogint 2094801
ell_get_j 2126269
bid_get_MOD 2157251
bid_get_sprk 2157969
ZXQ_mul 2166445
get_F2x_var 2168780
bid_get_fact2 2201574
gc_slice 2211491
pol_xn 2253999
pari_realloc_ip 2347737
bid_get_archp 2397097
bid_get_fact 2498927
rnf_get_degree 2506335
bnr_get_cyc 2522556
ell_get_b4 2550293
mul_content 2657680
cyc_get_expo 2757551
hash_str 2781060
sqrtnr 2810621
bnr_get_clgp 2830224
zero_Flm 2830965
rnf_get_pol 2845192
vecslicepermute 2857433
znstar_get_pe 2869063
F2x_equal1 2873654
bnf_get_logfu 2874767
RgX_coeff 2889731
gisdouble 2995593
Fq_red 3106109
bit_accuracy_mul 3175733
ZV_to_zv 3211716
identity_perm 3243229
zero_Flx 3255443
F3m_coeff 3255550
mkpolmod 3262565
identity_zv 3267591
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307650
get_FpX_mod 3387867
vec_append 3469024
zero_F2v 3656473
bid_get_U 3680226
bnf_get_cyc 3686611
bnr_get_bnf 3710944
nf_get_index 3713841
perm_inv 3747292
pol_1 3753757
ell_get_b6 3863192
pol_x 3865359
mulsubii 3892742
vec_to_vecsmall 4041783
vecsmall_append 4114753
F2x_equal 4136944
sqrfrac 4206147
mkcol2s 4416244
FpXQX_renormalize 4692330
pol1_F2x 4769236
mkmat 4781596
qfb_disc3 4995233
mkfraccopy 5009071
is_rational_t 5019860
bnf_get_clgp 5375473
nf_get_zkprimpart 5416510
nf_get_zkden 5462333
FpX_div 5582140
bid_get_cyc 5739825
bid_get_grp 5804673
pari_stack_delete 5900524
col_ei 5925615
isintm1 6087163
pari_stack_init 6347971
Flm_copy 6434422
sqrti 6613306
get_FpX_var 6952540
get_FpX_degree 6969450
RgX_div 6998920
vecsmall_lexcmp 7043248
ZM_lll 7136346
RgX_gtofp 7166296
znstar_get_faN 7334819
vecsmall_copy 7341060
ell_get_b2 7371395
ZX_is_monic 7670811
zc_to_ZC 7910081
vecsmall_to_col 7924627
znstar_get_conreycyc 7982108
mkintmod 8066645
checkell_i 8104049
Q_abs 8125701
ZV_ZV_mod 8147150
Flx_equal1 8200508
RgM_gtofp 8257615
F2m_coeff 8357466
Flm_row 8743780
cxtofp 9095491
veclast 9374251
ismpzero 9712756
is_intreal_t 9712864
const_col 9730156
nf_get_invzk 9775299
bnf_get_nf 9866315
RgM_dimensions 9955047
mkvec4 10156622
ell_get_a4 10325148
ell_get_a6 10371108
mkcol 10656524
ZC_hnfrem 10697444
mul_denom 10753528
ell_get_c4 11018743
ell_get_a2 11108730
Fp_addmul 11230752
ser_isexactzero 11434317
gc_INT_affii 11576774
vectrunc_init 11768003
pr_get_gen 12072255
abgrp_get_cyc 12231231
F2x_clear 12361099
F2v_clear 12361106
nbits2nlong 12770939
ell_get_a3 12863758
zeropol 12924037
ell_get_c6 13474432
gmax_shallow 13510226
modpr_get_T 13867119
zeromatcopy 14378885
closure_get_frame 14691595
rowpermute 14758949
ell_get_type 14946307
Fp_div 15033766
Fp_divu 15128241
mkvec5 15187499
vectrunc_append 15855869
pr_get_e 16167099
ell_get_disc 16815777
matslice 16824119
ell_get_a1 17049191
pr_is_inert 17224084
pol0_F2x 17309939
normalize_frac 17573603
isint1 17996528
Fp_center_i 18003955
cxcompotor 18242794
qfb_disc 18502515
mkvecsmall4 18638998
const_vecsmall 18860687
Fp_double 20735316
vecpermute 21108368
Flx_div_pre 21726369
nf_get_M 21741603
RgM_shallowcopy 22227416
RgX_is_ZX 22392135
Fp_inv 23415583
nf_get_r1 23466658
ZV_isscalar 23675648
gmulgs 23842410
get_Flx_mod 25514536
pr_get_f 26443797
RgX_equal_var 27139595
pol_0 27228267
shallowcopy 27896726
mkqfb 27928571
zerovec 29348442
modpr_get_pr 31236594
hash_str_len 31625412
submulii 31985143
RgV_is_ZV 32097188
Fp_neg 32672877
mkmat2 33656272
RgC_gtofp 34031959
const_vec 34645303
polx_Flx 37514286
lincombii 38261601
znstar_get_N 38658713
zero_zv 39498654
mkfrac 42735791
powii 43129995
is_vec_t 44023186
closure_is_variadic 45951791
absfrac 47978685
pr_get_tau 49773055
guncloneNULL 49839410
ell_is_inf 50146646
mkmat22 50265424
QV_isscalar 54419206
pol1_Flx 55764431
addmuliu_inplace 59554440
submuliu_inplace 60062993
is_real_t 61900636
zero_Flv 61978512
Fp_sqr 63664989
F2x_copy 63898896
qfb_is_qfi 64516002
gtodouble 66256434
Fp_mulu 68209102
get_Flx_var 68285055
mkvec 68928395
nf_get_degree 71377300
Fp_center 77180499
vecsmallpermute 78750662
rowslice 79434746
perm_mul 80947122
Fp_red 82931752
get_Flx_degree 83577005
gtos 85878458
sqrtr 87176523
is_noncalc_t 88518037
mkcomplex 92035363
pr_get_p 92760326
cxnorm 94254166
dbllog2r 94343806
nf_get_pol 98128551
vecsmalltrunc_append 100694635
gc_all 102461003
RgX_copy 102877116
mkvecsmall3 103267598
F2v_set 104113751
cgiv 105485434
prec2nbits 106951360
vecsmall_prefixcmp 108088071
pol0_Flx 111679393
gaddgs 123271123
both_odd 123592144
mkvec3 123869862
zerocol 125181148
F2x_renormalize 127046226
nchar2nlong 127848119
F2x_set 129835644
equalim1 139546854
mkvecsmall 140394439
bit_prec 143396596
FpX_renormalize 147299489
mkcol2 157031916
ZX_renormalize 157608960
nbrows 158340611
leading_coeff 169745471
Flx_copy 175952446
Fp_add 183272659
nbits2prec 189013584
Fp_sub 201398546
Fp_mul 203728155
mkvec2 215149145
vecsmalltrunc_init 243461017
gc_GEN 247034797
mkvecsmall2 256996535
gtofp 257170667
gmulgu 283360013
closure_get_data 306068825
closure_get_oper 306089738
closure_codestr 306106477
is_universal_constant 326432901
lgcols 352749448
closure_arity 356553282
is_scalar_t 404087650
lg_increase 444013235
bin_copy 473107118
pari_free 487466017
is_bigint 574386972
leafcopy_avma 593223739
vecslice 657191158
F2v_coeff 664429030
F2x_coeff 671055267
pari_malloc 723569713
is_matvec_t 744198671
pari_stack_new 910616652
GENbinbase 919455272
pari_stack_alloc 1005974508
pari_stack_base 1011850859
gc_leaf 1166370616
equali1 1172039022
nbits2extraprec 1497649711
gc_upto 1973154631
odd 2123858050
is_pm1 2219360604
lgpol 2630097137
isintzero 2848506945
bit_accuracy 3142865606
gc_INT 4138354670
prec2lg 4562791725
is_const_t 5002717934
degpol 5528216966
icopy_avma 8056896276
remsBIL 8148043290
divsBIL 8239100097
isonstack 8367118753
is_recursive_t 9115273232

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