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 30773-2078653b96) Lines: 1421 1535 92.6 %
Date: 2026-04-03 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 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 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 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 23280
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 33573
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 38108
FqX_div 38568
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47770
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58511
RgX_fpnorml2 61608
err_get_num 62596
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 75750
bnr_get_mod 77119
gal_get_group 80416
mkcol3 88314
cyclic_perm 99932
gtou 100718
mkcol4 103467
zv_to_zx 104146
mkmoo 108899
zeromat 108981
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114531
Q_abs_shallow 120226
mkmatcopy 122313
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138809
zeroser 138992
FqX_factor 140960
RgV_is_QV 141996
get_FpXQX_mod 146583
FlxqX_div_pre 165411
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200669
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220724
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234613
zero_Flm_copy 238316
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 277487
gchar_get_zm 281911
bnf_get_tuN 282989
bnf_get_fu_nocheck 289083
bnf_get_tuU 303573
nf_get_G 304833
vec_prepend 313922
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337203
upr_norm 346134
RgX_renormalize 349807
FqX_mul 367936
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384997
RgX_is_QX 399944
ZM_hnfrem 401385
abgrp_get_no 406734
perm_conj 418299
FqX_Fq_mul 427290
FqX_extgcd 445024
nf_get_disc 463512
precdbl 476362
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
Z_issquare 509456
nf_get_sign 519599
mkvec3s 524441
addmuliu 541635
ellff_get_a4a6 551461
gdivsg 559711
zv_to_ZV 569244
FqX_Fp_mul 572192
vecsmall_to_vec 578043
prec2nbits_mul 581094
vecsmall_ei 585152
powIs 596435
ZM_ZV_mod 610728
RgC_fpnorml2 619946
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698438
coltrunc_init 740257
logint 755015
gcmpgs 761926
row 763883
rnf_get_nf 786086
zero_F2m_copy 845285
FpXX_renormalize 849322
zeropadic 857529
gmin_shallow 898172
affgr 899594
ellinf 913908
ZXQ_sqr 960614
cgetc 975456
Flx_lead 1068800
polx_F2x 1078804
pr_norm 1090569
Flx_constant 1091554
Fp_invsafe 1097247
sstoQ 1097313
Flx_mulu 1105472
vecsmall_max 1177339
mkfracss 1209563
RgV_isscalar 1210273
gen_I 1268863
RgX_is_monomial 1320070
mkoo 1332141
bnf_get_sunits 1367770
rnf_get_absdegree 1392746
bnr_get_nf 1399076
constant_coeff 1441265
Rg_col_ei 1451097
inf_get_sign 1453285
vecsmall_concat 1464582
nf_get_varn 1503759
guncloneNULL_deep 1506212
bid_get_mod 1521921
F2m_flip 1554222
F2v_flip 1554222
F2x_flip 1554222
F2x_div 1570248
uutoQ 1602144
nf_get_roots 1628877
bnf_get_gen 1680313
zv_copy 1687809
vec_ei 1714716
mkvecsmall5 1718763
gsubgs 1731939
nf_get_roundG 1748508
abgrp_get_gen 1765019
ellff_get_field 1790611
modpr_get_p 1887627
get_F2x_degree 1928627
killblock 1956473
Flx_div 1999780
ellnf_get_nf 2027229
bnr_get_bid 2046090
Flv_copy 2059052
ulogint 2086952
ell_get_j 2126269
bid_get_MOD 2157250
bid_get_sprk 2157972
ZXQ_mul 2166275
get_F2x_var 2168770
bid_get_fact2 2201571
gc_slice 2211174
pol_xn 2252851
pari_realloc_ip 2359320
bid_get_archp 2397100
bid_get_fact 2498912
rnf_get_degree 2506335
bnr_get_cyc 2522546
ell_get_b4 2550293
mul_content 2657519
cyc_get_expo 2757551
hash_str 2757674
sqrtnr 2810681
bnr_get_clgp 2830215
zero_Flm 2830980
rnf_get_pol 2845192
vecslicepermute 2858946
znstar_get_pe 2869063
F2x_equal1 2873732
bnf_get_logfu 2874755
RgX_coeff 2889731
gisdouble 2996077
mkpolmod 3075556
Fq_red 3106209
bit_accuracy_mul 3175715
ZV_to_zv 3211716
identity_perm 3243289
zero_Flx 3255639
F3m_coeff 3255655
identity_zv 3267652
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307680
get_FpX_mod 3387867
vec_append 3468908
zero_F2v 3656695
bid_get_U 3680225
bnf_get_cyc 3686609
bnr_get_bnf 3710948
nf_get_index 3712020
perm_inv 3747271
pol_1 3752539
pol_x 3860554
ell_get_b6 3863192
mulsubii 3893859
vec_to_vecsmall 4039398
vecsmall_append 4114713
sqrfrac 4151094
F2x_equal 4186283
mkcol2s 4416244
FpXQX_renormalize 4692435
pol1_F2x 4769299
mkmat 4780176
qfb_disc3 4995195
mkfraccopy 4999315
is_rational_t 5017655
bnf_get_clgp 5375459
nf_get_zkprimpart 5416391
nf_get_zkden 5462242
FpX_div 5582008
bid_get_cyc 5739797
bid_get_grp 5804651
pari_stack_delete 5884094
col_ei 5925248
isintm1 6086493
pari_stack_init 6378987
Flm_copy 6434470
sqrti 6612726
get_FpX_var 6952162
get_FpX_degree 6969420
RgX_div 6997261
vecsmall_lexcmp 7043244
ZM_lll 7117689
RgX_gtofp 7163980
ZX_is_monic 7319852
znstar_get_faN 7334819
vecsmall_copy 7341178
ell_get_b2 7371395
zc_to_ZC 7910724
vecsmall_to_col 7925269
znstar_get_conreycyc 7982108
Q_abs 8061013
mkintmod 8066721
checkell_i 8103983
ZV_ZV_mod 8147163
Flx_equal1 8196083
RgM_gtofp 8257632
F2m_coeff 8358995
Flm_row 8743075
cxtofp 9094068
veclast 9374232
ismpzero 9702679
is_intreal_t 9702782
const_col 9730131
nf_get_invzk 9774752
bnf_get_nf 9866307
RgM_dimensions 9955090
mkvec4 10150227
ell_get_a4 10325147
ell_get_a6 10371107
mkcol 10653386
ZC_hnfrem 10697516
mul_denom 10709679
ell_get_c4 11018925
ell_get_a2 11108729
Fp_addmul 11231716
ser_isexactzero 11434254
gc_INT_affii 11568150
vectrunc_init 11766300
pr_get_gen 12072606
abgrp_get_cyc 12231187
F2x_clear 12361984
F2v_clear 12361998
nbits2nlong 12752839
ell_get_a3 12863757
zeropol 12867463
ell_get_c6 13474521
gmax_shallow 13510228
modpr_get_T 13867136
zeromatcopy 14377849
closure_get_frame 14735083
rowpermute 14758681
ell_get_type 14946102
Fp_div 15033881
Fp_divu 15128405
mkvec5 15187637
vectrunc_append 15855449
pr_get_e 16167499
ell_get_disc 16816129
matslice 16824312
ell_get_a1 17049191
pr_is_inert 17224439
normalize_frac 17310207
pol0_F2x 17353677
isint1 17987118
Fp_center_i 18008432
cxcompotor 18239829
qfb_disc 18502501
mkvecsmall4 18653903
const_vecsmall 18860974
Fp_double 20766364
vecpermute 21110641
Flx_div_pre 21708018
nf_get_M 21745656
RgM_shallowcopy 22235486
RgX_is_ZX 22315783
Fp_inv 23435914
nf_get_r1 23466223
ZV_isscalar 23675086
gmulgs 23867892
get_Flx_mod 25498440
pr_get_f 26444577
RgX_equal_var 26880497
pol_0 27123685
shallowcopy 27896352
mkqfb 27928517
zerovec 29348332
modpr_get_pr 31236601
hash_str_len 31655946
submulii 31985063
RgV_is_ZV 32095985
Fp_neg 32670556
mkmat2 33666060
RgC_gtofp 34033723
const_vec 34674164
polx_Flx 37492563
lincombii 38263177
znstar_get_N 38658713
zero_zv 39510893
mkfrac 41927444
powii 43130045
is_vec_t 43951752
closure_is_variadic 45931215
absfrac 46991360
pr_get_tau 49774100
guncloneNULL 49826622
ell_is_inf 50161569
mkmat22 50253114
QV_isscalar 54420091
pol1_Flx 55725947
addmuliu_inplace 59552693
submuliu_inplace 60059669
is_real_t 61900628
zero_Flv 61991610
Fp_sqr 63521955
qfb_is_qfi 64526878
F2x_copy 64574946
Fp_mulu 65441074
gtodouble 66248886
get_Flx_var 68243708
mkvec 69362626
nf_get_degree 71376636
Fp_center 77292361
vecsmallpermute 78756856
rowslice 79455068
perm_mul 80953203
get_Flx_degree 82175115
Fp_red 82934530
gtos 85865498
sqrtr 86931866
is_noncalc_t 88514800
mkcomplex 92013474
pr_get_p 92761678
cxnorm 94099769
dbllog2r 94329593
nf_get_pol 98120210
vecsmalltrunc_append 100882711
RgX_copy 102486984
gc_all 102550926
mkvecsmall3 103249632
F2v_set 104115126
cgiv 105476910
prec2nbits 106945231
vecsmall_prefixcmp 108088071
pol0_Flx 111642646
mkvec3 119749901
gaddgs 123270556
both_odd 124042328
zerocol 125155087
F2x_renormalize 127892203
nchar2nlong 127921561
F2x_set 130010582
equalim1 139568024
mkvecsmall 140284408
bit_prec 143398712
FpX_renormalize 147014071
mkcol2 156937482
ZX_renormalize 157443485
nbrows 158271264
leading_coeff 169335885
Flx_copy 175790940
Fp_add 183269332
nbits2prec 189009766
Fp_sub 200950317
Fp_mul 203041588
mkvec2 213780242
vecsmalltrunc_init 241227233
gc_GEN 246752301
mkvecsmall2 256946479
gtofp 257183743
gmulgu 283360013
closure_get_data 305808668
closure_get_oper 305834007
closure_codestr 305857285
is_universal_constant 326558832
lgcols 352678484
closure_arity 356280793
is_scalar_t 403470992
lg_increase 440580277
bin_copy 472880965
pari_free 487243255
is_bigint 574367310
leafcopy_avma 593135156
vecslice 657390235
F2v_coeff 664438954
F2x_coeff 671057093
pari_malloc 723349290
is_matvec_t 742656400
pari_stack_new 910873143
GENbinbase 919003937
pari_stack_alloc 1006196365
pari_stack_base 1012025105
gc_leaf 1160745301
equali1 1169265997
nbits2extraprec 1497871305
gc_upto 1971404713
odd 2123688076
is_pm1 2216080729
lgpol 2623239388
isintzero 2848321578
bit_accuracy 3145113242
gc_INT 4134387388
prec2lg 4561650069
is_const_t 5002520014
degpol 5514740426
icopy_avma 8049813980
remsBIL 8149180585
divsBIL 8240574378
isonstack 8355346596
is_recursive_t 9105157847

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