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 30766-abc2a9856c) Lines: 1421 1535 92.6 %
Date: 2026-03-27 09:27:04 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 22654
FqXQ_mul 22766
nf_get_Tr 23281
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 33579
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 37880
FqX_div 38568
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 58512
RgX_fpnorml2 61606
err_get_num 62595
bid_get_gen 64274
nf_get_ramified_primes 64644
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 75753
bnr_get_mod 77119
gal_get_group 80414
mkcol3 88314
cyclic_perm 99932
gtou 100663
mkcol4 103467
zv_to_zx 104146
mkmoo 108899
zeromat 109013
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114532
Q_abs_shallow 120236
mkmatcopy 122314
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138809
zeroser 138992
FqX_factor 140960
RgV_is_QV 142003
get_FpXQX_mod 146583
FlxqX_div_pre 165415
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200659
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220726
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234570
zero_Flm_copy 238309
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249623
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 282999
bnf_get_fu_nocheck 289091
bnf_get_tuU 303584
nf_get_G 304827
vec_prepend 313927
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337205
upr_norm 346136
RgX_renormalize 349807
FqX_mul 367934
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384991
RgX_is_QX 399936
ZM_hnfrem 401397
abgrp_get_no 406725
perm_conj 418299
FqX_Fq_mul 427299
FqX_extgcd 445012
nf_get_disc 463509
precdbl 476366
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
Z_issquare 509444
nf_get_sign 519600
mkvec3s 524441
addmuliu 541509
gdivsg 559710
zv_to_ZV 569244
FqX_Fp_mul 572196
vecsmall_to_vec 578043
prec2nbits_mul 581096
vecsmall_ei 585099
powIs 596435
ZM_ZV_mod 610737
RgC_fpnorml2 619939
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755016
gcmpgs 761929
row 763888
rnf_get_nf 786086
ellff_get_a4a6 800511
zero_F2m_copy 845268
FpXX_renormalize 849322
zeropadic 857523
gmin_shallow 898166
affgr 899594
ZXQ_sqr 960432
cgetc 975458
Flx_lead 1069051
polx_F2x 1074411
pr_norm 1090467
Flx_constant 1091728
Fp_invsafe 1097247
sstoQ 1097313
Flx_mulu 1105435
vecsmall_max 1177403
ellinf 1208509
mkfracss 1209563
RgV_isscalar 1210267
gen_I 1268856
RgX_is_monomial 1319961
mkoo 1332003
bnf_get_sunits 1367775
rnf_get_absdegree 1392746
bnr_get_nf 1399077
zero_Flx 1427177
constant_coeff 1441246
Rg_col_ei 1451106
inf_get_sign 1453152
vecsmall_concat 1464631
nf_get_varn 1503773
guncloneNULL_deep 1513266
bid_get_mod 1521921
F2m_flip 1553829
F2v_flip 1553829
F2x_flip 1553829
F2x_div 1559630
uutoQ 1602144
nf_get_roots 1628865
bnf_get_gen 1680317
vec_ei 1714768
mkvecsmall5 1718677
gsubgs 1731935
nf_get_roundG 1748507
abgrp_get_gen 1765030
modpr_get_p 1887627
get_F2x_degree 1928407
killblock 1962459
Flx_div 1999870
ellnf_get_nf 2027255
ellff_get_field 2038535
bnr_get_bid 2046103
ulogint 2082059
ell_get_j 2126269
bid_get_MOD 2157260
bid_get_sprk 2157980
ZXQ_mul 2166039
zv_copy 2184099
bid_get_fact2 2201581
gc_slice 2211202
pol_xn 2252810
pari_realloc_ip 2358167
bid_get_archp 2397127
get_F2x_mod 2490691
bid_get_fact 2498933
rnf_get_degree 2506335
bnr_get_cyc 2522554
get_F2x_var 2536611
ell_get_b4 2550293
Flv_copy 2555363
mul_content 2657595
cyc_get_expo 2757539
hash_str 2757659
sqrtnr 2810678
bnr_get_clgp 2830239
zero_Flm 2831023
rnf_get_pol 2845192
vecslicepermute 2858541
znstar_get_pe 2869063
F2x_equal1 2873768
bnf_get_logfu 2874766
RgX_coeff 2889731
gisdouble 2995850
mkpolmod 3075504
Fq_red 3106684
bit_accuracy_mul 3175715
ZV_to_zv 3211716
identity_perm 3243322
F3m_coeff 3255558
identity_zv 3267684
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3387855
vec_append 3468992
zero_F2v 3656488
bid_get_U 3680235
bnf_get_cyc 3686610
bnr_get_bnf 3710955
nf_get_index 3712018
perm_inv 3747550
pol_1 3752439
pol_x 3860391
ell_get_b6 3863192
mulsubii 3894630
pol1_F2x 3950320
vec_to_vecsmall 4039445
vecsmall_append 4114712
sqrfrac 4150962
mkcol2s 4416244
F2x_equal 4616802
FpXQX_renormalize 4693151
mkmat 4780159
qfb_disc3 4995161
mkfraccopy 4999595
is_rational_t 5017677
vecsmall_copy 5369778
bnf_get_clgp 5375469
nf_get_zkprimpart 5416284
nf_get_zkden 5462059
FpX_div 5582084
checkell_i 5593756
bid_get_cyc 5739844
bid_get_grp 5804688
pari_stack_delete 5910337
col_ei 5925309
isintm1 6086520
pari_stack_init 6375370
Flm_copy 6434694
sqrti 6612810
get_FpX_var 6954528
get_FpX_degree 6969398
RgX_div 6997065
vecsmall_lexcmp 7043220
ell_get_a2 7106314
ZM_lll 7117834
RgX_gtofp 7164072
ZX_is_monic 7319733
znstar_get_faN 7334819
ell_get_b2 7371382
zc_to_ZC 7910525
vecsmall_to_col 7925071
znstar_get_conreycyc 7982108
Q_abs 8060900
mkintmod 8065650
ZV_ZV_mod 8147222
Flx_equal1 8195759
RgM_gtofp 8257930
F2m_coeff 8357235
ell_get_a4 8536855
Flm_row 8743479
ell_get_a3 8814534
ell_get_a1 8997566
cxtofp 9093090
veclast 9374217
ismpzero 9702791
is_intreal_t 9702893
const_col 9730068
nf_get_invzk 9774947
bnf_get_nf 9866317
RgM_dimensions 9954943
mkvec4 10150129
ell_get_a6 10371093
mkcol 10653407
ZC_hnfrem 10697382
mul_denom 10709562
ell_get_c4 11019196
Fp_addmul 11224788
ser_isexactzero 11434254
gc_INT_affii 11593186
vectrunc_init 11768143
pr_get_gen 12072800
abgrp_get_cyc 12231265
F2x_clear 12360937
F2v_clear 12360990
ell_get_type 12499945
nbits2nlong 12719119
zeropol 12867476
pol0_F2x 13184504
ell_get_c6 13474910
gmax_shallow 13510228
modpr_get_T 13867160
zeromatcopy 14378124
closure_get_frame 14734877
rowpermute 14759320
Fp_div 15034584
Fp_divu 15129003
mkvec5 15187683
vectrunc_append 15860369
pr_get_e 16167472
ell_get_disc 16816801
matslice 16826026
pr_is_inert 17224581
normalize_frac 17311518
isint1 17987136
Fp_center_i 18038206
cxcompotor 18238024
qfb_disc 18502594
mkvecsmall4 18694975
const_vecsmall 18861046
Fp_double 20837544
vecpermute 21110647
Flx_div_pre 21709884
nf_get_M 21745446
RgM_shallowcopy 22235694
RgX_is_ZX 22315648
Fp_inv 23436263
nf_get_r1 23465877
ZV_isscalar 23674933
gmulgs 23828048
get_Flx_mod 25501937
pol_0 26065164
pr_get_f 26444655
RgX_equal_var 26880173
shallowcopy 27897685
mkqfb 27928444
zerovec 29348203
modpr_get_pr 31236706
Fp_neg 31474225
hash_str_len 31655380
submulii 31985063
RgV_is_ZV 32095993
mkmat2 33666124
RgC_gtofp 34035040
const_vec 34678663
zero_zv 37301408
polx_Flx 37502430
lincombii 38269989
znstar_get_N 38658713
mkfrac 41924220
powii 43130172
is_vec_t 43945288
closure_is_variadic 45930904
absfrac 46991069
ell_is_inf 49400138
pr_get_tau 49774055
guncloneNULL 49833213
mkmat22 50261182
QV_isscalar 54420388
pol1_Flx 54913287
F2x_copy 59136342
addmuliu_inplace 59634023
zero_Flv 59741513
submuliu_inplace 60138904
is_real_t 61899887
Fp_sqr 64488983
qfb_is_qfi 64532300
gtodouble 66251185
get_Flx_var 68385562
mkvec 69680422
nf_get_degree 71375654
Fp_mulu 72517432
Fp_center 77397070
vecsmallpermute 78761788
rowslice 79468059
perm_mul 80958128
Fp_red 82932642
get_Flx_degree 84155320
gtos 85865464
sqrtr 86938796
is_noncalc_t 88498951
mkcomplex 92006143
pr_get_p 92761687
cxnorm 94099871
dbllog2r 94328935
nf_get_pol 98121687
vecsmalltrunc_append 100807524
RgX_copy 102485490
gc_all 102551059
pol0_Flx 103139521
mkvecsmall3 103274244
F2v_set 104113580
cgiv 105484685
prec2nbits 106955681
vecsmall_prefixcmp 108088071
F2x_renormalize 111749882
gaddgs 123270551
both_odd 124124780
zerocol 125157770
mkvec3 125673725
F2x_set 125778621
nchar2nlong 127922935
mkvecsmall 131779477
equalim1 139568023
bit_prec 143396138
FpX_renormalize 145862028
ZX_renormalize 155224352
mkcol2 156992249
nbrows 158272849
leading_coeff 169338005
Flx_copy 173828238
Fp_add 181120696
nbits2prec 188997565
Fp_mul 201032745
Fp_sub 202841912
mkvec2 213370224
vecsmalltrunc_init 244064461
gc_GEN 246990974
mkvecsmall2 256226139
gtofp 257215837
gmulgu 283360013
closure_get_data 305886960
closure_get_oper 305901675
closure_codestr 305917794
is_universal_constant 326473897
lgcols 352699633
closure_arity 356368376
is_scalar_t 403468625
lg_increase 446694179
bin_copy 473130678
pari_free 487503197
is_bigint 574364317
leafcopy_avma 594717810
vecslice 657462163
F2v_coeff 664427422
F2x_coeff 670917291
pari_malloc 723585993
is_matvec_t 742776121
pari_stack_new 910918114
GENbinbase 919491214
pari_stack_alloc 1006227360
pari_stack_base 1012092762
gc_leaf 1150894629
equali1 1169482680
nbits2extraprec 1498393179
gc_upto 1956825957
odd 2125229970
is_pm1 2218315043
lgpol 2601306974
isintzero 2849086306
bit_accuracy 3128784403
gc_INT 4136726934
prec2lg 4566924744
is_const_t 5007903286
degpol 5541568992
icopy_avma 8051433726
remsBIL 8143166043
divsBIL 8234549995
isonstack 8336116151
is_recursive_t 9102518114

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