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 30762-238ab8e6c0) Lines: 1422 1535 92.6 %
Date: 2026-03-22 09:27:12 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 22655
FqXQ_mul 22766
nf_get_Tr 23275
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 29945
gchar_get_basis 32816
gal_get_roots 32844
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33581
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 37746
FqX_div 38567
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 58513
RgX_fpnorml2 61608
err_get_num 62595
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 75755
bnr_get_mod 77118
gal_get_group 80416
mkcol3 88314
cyclic_perm 99932
gtou 100691
mkcol4 103467
zv_to_zx 104146
mkmoo 108901
zeromat 108974
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114533
Q_abs_shallow 120230
mkmatcopy 122303
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138814
zeroser 138992
FqX_factor 140960
RgV_is_QV 141999
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 200649
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 234074
zero_Flm_copy 238318
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249622
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 283002
bnf_get_fu_nocheck 289094
bnf_get_tuU 303580
nf_get_G 304829
vec_prepend 313931
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 385012
RgX_is_QX 399942
ZM_hnfrem 401388
abgrp_get_no 406735
perm_conj 418299
FqX_Fq_mul 427299
FqX_extgcd 445026
nf_get_disc 463510
precdbl 476367
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
Z_issquare 509448
nf_get_sign 519600
mkvec3s 524441
addmuliu 541518
gdivsg 559711
zv_to_ZV 569244
FqX_Fp_mul 572200
vecsmall_to_vec 578043
prec2nbits_mul 581097
vecsmall_ei 585152
powIs 596435
ZM_ZV_mod 610754
RgC_fpnorml2 619940
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755018
gcmpgs 761918
row 763899
rnf_get_nf 786086
ellff_get_a4a6 800509
zero_F2m_copy 845231
FpXX_renormalize 849322
zeropadic 857098
gmin_shallow 898139
affgr 899594
ZXQ_sqr 960528
cgetc 975457
Flx_lead 1068873
polx_F2x 1073452
pr_norm 1090568
Flx_constant 1091753
Fp_invsafe 1097241
sstoQ 1097313
Flx_mulu 1105460
vecsmall_max 1177469
ellinf 1208494
mkfracss 1209563
RgV_isscalar 1210270
gen_I 1268862
RgX_is_monomial 1320014
mkoo 1332107
bnf_get_sunits 1367773
rnf_get_absdegree 1392746
bnr_get_nf 1399085
zero_Flx 1427123
constant_coeff 1441252
Rg_col_ei 1451072
inf_get_sign 1453248
vecsmall_concat 1464599
nf_get_varn 1503776
guncloneNULL_deep 1510032
bid_get_mod 1521921
F2m_flip 1553109
F2v_flip 1553109
F2x_flip 1553109
F2x_div 1557551
uutoQ 1602144
nf_get_roots 1628864
bnf_get_gen 1680303
vec_ei 1714758
mkvecsmall5 1718668
gsubgs 1731926
nf_get_roundG 1748507
abgrp_get_gen 1765013
modpr_get_p 1887627
get_F2x_degree 1928362
killblock 1958070
Flx_div 1999831
ellnf_get_nf 2027246
ellff_get_field 2038535
bnr_get_bid 2046091
ulogint 2083190
ell_get_j 2126269
bid_get_MOD 2157260
bid_get_sprk 2157978
ZXQ_mul 2166154
zv_copy 2184111
bid_get_fact2 2201579
gc_slice 2211239
pol_xn 2252804
pari_realloc_ip 2358227
bid_get_archp 2397140
get_F2x_mod 2490700
bid_get_fact 2498946
rnf_get_degree 2506335
bnr_get_cyc 2522572
get_F2x_var 2536582
ell_get_b4 2550293
Flv_copy 2555379
mul_content 2657614
cyc_get_expo 2757571
hash_str 2757652
sqrtnr 2810720
bnr_get_clgp 2830249
zero_Flm 2830782
rnf_get_pol 2845192
vecslicepermute 2856718
znstar_get_pe 2869063
F2x_equal1 2873779
bnf_get_logfu 2874771
RgX_coeff 2889731
gisdouble 2995705
mkpolmod 3075576
Fq_red 3106542
bit_accuracy_mul 3175715
ZV_to_zv 3211716
identity_perm 3243101
F3m_coeff 3255604
identity_zv 3267464
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3387843
vec_append 3469006
zero_F2v 3656383
bid_get_U 3680234
bnf_get_cyc 3686592
bnr_get_bnf 3710953
nf_get_index 3712009
perm_inv 3747342
pol_1 3752477
pol_x 3860459
ell_get_b6 3863192
mulsubii 3893733
pol1_F2x 3950358
vec_to_vecsmall 4039452
vecsmall_append 4114672
sqrfrac 4150999
mkcol2s 4416244
F2x_equal 4605673
FpXQX_renormalize 4692923
mkmat 4780184
qfb_disc3 4995541
mkfraccopy 4999562
is_rational_t 5017649
vecsmall_copy 5369764
bnf_get_clgp 5375441
nf_get_zkprimpart 5416418
nf_get_zkden 5462220
FpX_div 5582009
checkell_i 5593784
bid_get_cyc 5739855
bid_get_grp 5804705
pari_stack_delete 5884917
col_ei 5925331
isintm1 6086521
pari_stack_init 6375483
Flm_copy 6434574
sqrti 6612764
get_FpX_var 6954420
get_FpX_degree 6969414
RgX_div 6997065
vecsmall_lexcmp 7043259
ell_get_a2 7106315
ZM_lll 7118032
RgX_gtofp 7164008
ZX_is_monic 7319866
znstar_get_faN 7334819
ell_get_b2 7371376
zc_to_ZC 7909746
vecsmall_to_col 7924279
znstar_get_conreycyc 7982108
Q_abs 8060984
mkintmod 8065603
ZV_ZV_mod 8147225
Flx_equal1 8195716
RgM_gtofp 8258130
F2m_coeff 8355578
ell_get_a4 8536856
Flm_row 8743537
ell_get_a3 8814529
ell_get_a1 8997561
cxtofp 9093585
veclast 9374217
ismpzero 9702691
is_intreal_t 9702793
const_col 9730127
nf_get_invzk 9774913
bnf_get_nf 9866254
RgM_dimensions 9955029
mkvec4 10150134
ell_get_a6 10371094
mkcol 10653491
ZC_hnfrem 10697546
mul_denom 10709851
ell_get_c4 11019276
Fp_addmul 11206968
ser_isexactzero 11434254
gc_INT_affii 11573756
vectrunc_init 11766437
pr_get_gen 12072867
abgrp_get_cyc 12231269
F2x_clear 12359940
F2v_clear 12359944
ell_get_type 12500080
nbits2nlong 12720450
zeropol 12867488
pol0_F2x 13176564
ell_get_c6 13475002
gmax_shallow 13510228
modpr_get_T 13867075
zeromatcopy 14378364
closure_get_frame 14734969
rowpermute 14758254
Fp_div 15034816
Fp_divu 15129268
mkvec5 15187720
vectrunc_append 15858229
pr_get_e 16167385
ell_get_disc 16817010
matslice 16825799
pr_is_inert 17224604
normalize_frac 17311750
isint1 17987145
Fp_center_i 18056585
cxcompotor 18239109
qfb_disc 18502585
mkvecsmall4 18688076
const_vecsmall 18861243
Fp_double 20769868
vecpermute 21105126
Flx_div_pre 21711017
nf_get_M 21745797
RgM_shallowcopy 22235846
RgX_is_ZX 22315870
Fp_inv 23435701
nf_get_r1 23466321
ZV_isscalar 23675277
gmulgs 23810872
get_Flx_mod 25502441
pol_0 26065170
pr_get_f 26444764
RgX_equal_var 26880177
shallowcopy 27898006
mkqfb 27929304
zerovec 29348257
modpr_get_pr 31236568
Fp_neg 31474555
hash_str_len 31655320
submulii 31985063
RgV_is_ZV 32095990
mkmat2 33666220
RgC_gtofp 34033656
const_vec 34678642
zero_zv 37298339
polx_Flx 37501947
lincombii 38267898
znstar_get_N 38658713
mkfrac 41924367
powii 43130151
is_vec_t 43948768
closure_is_variadic 45931108
absfrac 46991357
ell_is_inf 49406659
pr_get_tau 49774134
guncloneNULL 49831149
mkmat22 50260929
QV_isscalar 54421303
pol1_Flx 54913915
F2x_copy 59010370
addmuliu_inplace 59640445
zero_Flv 59738574
submuliu_inplace 60152751
is_real_t 61899888
Fp_sqr 64277858
qfb_is_qfi 64529248
gtodouble 66249482
get_Flx_var 68388666
Fp_mulu 68689391
mkvec 69682906
nf_get_degree 71378340
Fp_center 77412227
vecsmallpermute 78757785
rowslice 79464306
perm_mul 80954038
get_Flx_degree 82264902
Fp_red 82931096
gtos 85865477
sqrtr 86937205
is_noncalc_t 88499539
mkcomplex 92013844
pr_get_p 92761608
cxnorm 94101339
dbllog2r 94332655
nf_get_pol 98122988
vecsmalltrunc_append 100841988
RgX_copy 102485536
gc_all 102550563
pol0_Flx 103132236
mkvecsmall3 103276154
F2v_set 104112161
cgiv 105468884
prec2nbits 106955706
vecsmall_prefixcmp 108088071
F2x_renormalize 111549775
mkvec3 119985824
gaddgs 123270507
both_odd 124110638
zerocol 125152196
F2x_set 125732220
nchar2nlong 127918550
mkvecsmall 131775434
equalim1 139568147
bit_prec 143390242
FpX_renormalize 145857795
ZX_renormalize 155206186
mkcol2 157000146
nbrows 158270231
leading_coeff 169336427
Flx_copy 173827977
Fp_add 181014576
nbits2prec 188999263
Fp_mul 201009649
Fp_sub 202729446
mkvec2 213941950
vecsmalltrunc_init 245330346
gc_GEN 247010821
mkvecsmall2 256207518
gtofp 257193695
gmulgu 283360013
closure_get_data 305817425
closure_get_oper 305850637
closure_codestr 305882974
is_universal_constant 326532965
lgcols 352695520
closure_arity 356287697
is_scalar_t 403469430
lg_increase 449194270
bin_copy 473130457
pari_free 487492622
is_bigint 574319441
leafcopy_avma 594839824
vecslice 657273718
F2v_coeff 664418211
F2x_coeff 670917455
pari_malloc 723589746
is_matvec_t 742709641
pari_stack_new 910938813
GENbinbase 919502084
pari_stack_alloc 1006243053
pari_stack_base 1012078838
gc_leaf 1143059486
equali1 1169402331
nbits2extraprec 1498382444
gc_upto 1956882506
odd 2125256347
is_pm1 2216271396
lgpol 2588773743
isintzero 2848916002
bit_accuracy 3127589198
gc_INT 4136489303
prec2lg 4565885640
is_const_t 5007163517
degpol 5516694921
icopy_avma 8051088734
remsBIL 8141577270
divsBIL 8232842064
isonstack 8326755618
is_recursive_t 9103240680

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