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 30735-65f72320ad) Lines: 1422 1535 92.6 %
Date: 2026-03-13 09:24:04 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
powIs 1561
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_get_sfu 1743
gchar_set_evalprec 1813
mkintmodu 1834
gchar_get_nm 1869
pari_realloc 1873
RgXQX_div 1904
mkpadic 2009
gchar_get_nalg 2044
gchar_set_nf 2110
gchar_set_u0 2121
vecsmall_min 2352
vecreverse_inplace 2605
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2869
gchar_set_nfprec 2968
vecsmall_reverse 3052
vecsmall_to_vec_inplace 3304
gchar_get_m0 3318
pari_err_TYPE2 3493
get_FpXQX_degree 3589
matpascal 3983
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
rnf_get_zk 4830
rnf_get_nfvarn 4886
idealchineseinit 5427
pari_stack_pushp 5800
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 10115
ZX_equal1 10488
gchar_get_Ui 10983
vec_shorten 11556
R_abs_shallow 13097
gchar_get_nfprec 13468
closure_get_dbg 13653
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15491
znstar_get_gen 16150
gchar_get_cyc 16177
mkmat3 17001
zeropadic_shallow 17149
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 26299
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 33587
Qtoss 35364
gal_get_pol 36428
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37136
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 37833
FqX_div 38567
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47609
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 61608
err_get_num 62582
bid_get_gen 64274
nf_get_ramified_primes 64644
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 75754
bnr_get_mod 77119
gal_get_group 80416
mkcol3 88314
cyclic_perm 99911
gtou 100686
mkcol4 103467
zv_to_zx 104146
mkmoo 108895
zeromat 108979
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114530
Q_abs_shallow 120232
mkmatcopy 122304
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138809
zeroser 138992
FqX_factor 140960
RgV_is_QV 141999
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 200430
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220376
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 233768
zero_Flm_copy 238314
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 283000
bnf_get_fu_nocheck 289092
bnf_get_tuU 303587
nf_get_G 304808
vec_prepend 313924
get_FlxqX_degree 317580
rnf_get_polabs 327628
Flx_constant 334086
cxtoreal 337206
upr_norm 346135
RgX_renormalize 349807
FqX_mul 367935
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385013
RgX_is_QX 399947
ZM_hnfrem 401431
abgrp_get_no 406738
perm_conj 418299
FqX_Fq_mul 427289
FqX_extgcd 445015
nf_get_disc 463515
precdbl 475652
RgX_shift_inplace 479435
RgX_shift_inplace_init 479435
Z_issquare 509452
nf_get_sign 519598
mkvec3s 524441
gdivsg 531592
addmuliu 541617
zv_to_ZV 568222
FqX_Fp_mul 572201
vecsmall_to_vec 577021
prec2nbits_mul 581080
vecsmall_ei 584738
ZM_ZV_mod 610699
RgC_fpnorml2 619950
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 754940
gcmpgs 761928
row 763904
rnf_get_nf 786086
ellff_get_a4a6 800038
zero_F2m_copy 845061
FpXX_renormalize 849322
zeropadic 857627
gmin_shallow 877887
affgr 899594
ZXQ_sqr 960514
cgetc 975459
Flx_lead 978800
polx_F2x 1078467
pr_norm 1090545
Fp_invsafe 1097246
sstoQ 1097313
Flx_mulu 1105489
vecsmall_max 1164189
ellinf 1208492
mkfracss 1209563
RgV_isscalar 1210270
gen_I 1268280
RgX_is_monomial 1318270
mkoo 1331997
bnf_get_sunits 1367776
rnf_get_absdegree 1392746
bnr_get_nf 1399062
zero_Flx 1427075
constant_coeff 1441247
Rg_col_ei 1451037
inf_get_sign 1453132
vecsmall_concat 1464555
nf_get_varn 1503780
guncloneNULL_deep 1510123
bid_get_mod 1521921
F2m_flip 1554144
F2v_flip 1554144
F2x_flip 1554144
F2x_div 1570371
uutoQ 1602144
nf_get_roots 1628835
bnf_get_gen 1680321
vec_ei 1714405
mkvecsmall5 1717608
gsubgs 1730165
nf_get_roundG 1748486
abgrp_get_gen 1765033
modpr_get_p 1887627
get_F2x_degree 1928130
killblock 1959535
ulogint 1988122
Flx_div 1999824
ellnf_get_nf 2027252
ellff_get_field 2036917
bnr_get_bid 2046094
ell_get_j 2126269
bid_get_MOD 2157261
bid_get_sprk 2157975
ZXQ_mul 2166167
zv_copy 2183785
bid_get_fact2 2201581
gc_slice 2206039
pol_xn 2249899
pari_realloc_ip 2351555
bid_get_archp 2397139
get_F2x_mod 2489644
bid_get_fact 2498954
rnf_get_degree 2506335
bnr_get_cyc 2522563
get_F2x_var 2534390
ell_get_b4 2550216
Flv_copy 2555052
mul_content 2657476
RgX_coeff 2667901
hash_str 2741930
cyc_get_expo 2757548
sqrtnr 2810368
bnr_get_clgp 2830243
zero_Flm 2830765
rnf_get_pol 2845192
vecslicepermute 2855609
znstar_get_pe 2869063
F2x_equal1 2873746
bnf_get_logfu 2874767
gisdouble 2996124
mkpolmod 3075556
Fq_red 3106467
bit_accuracy_mul 3175715
ZV_to_zv 3211712
identity_perm 3242731
F3m_coeff 3255609
identity_zv 3267082
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3387834
vec_append 3468984
zero_F2v 3647765
bid_get_U 3680238
bnf_get_cyc 3686614
bnr_get_bnf 3710952
nf_get_index 3712040
perm_inv 3747206
pol_1 3750941
pol_x 3857800
ell_get_b6 3863115
mulsubii 3893912
pol1_F2x 3949557
vec_to_vecsmall 4039439
vecsmall_append 4114704
sqrfrac 4148092
mkcol2s 4416244
F2x_equal 4665021
FpXQX_renormalize 4692955
mkmat 4780020
qfb_disc3 4995321
mkfraccopy 4999669
is_rational_t 5015370
vecsmall_copy 5369141
bnf_get_clgp 5375479
nf_get_zkprimpart 5416247
nf_get_zkden 5462058
FpX_div 5582043
checkell_i 5593339
isintm1 5711335
bid_get_cyc 5739856
bid_get_grp 5804707
pari_stack_delete 5898221
col_ei 5925308
pari_stack_init 6358986
Flm_copy 6434402
sqrti 6611313
get_FpX_var 6954652
get_FpX_degree 6968796
RgX_div 6996400
vecsmall_lexcmp 7043259
ell_get_a2 7106200
ZM_lll 7117925
RgX_gtofp 7151501
ZX_is_monic 7319837
znstar_get_faN 7334819
ell_get_b2 7371021
zc_to_ZC 7907766
vecsmall_to_col 7922312
znstar_get_conreycyc 7982108
Q_abs 8059624
mkintmod 8061364
ZV_ZV_mod 8147114
F2m_coeff 8156027
Flx_equal1 8195639
RgM_gtofp 8258110
ell_get_a4 8536741
Flm_row 8742947
ell_get_a3 8814059
ell_get_a1 8997091
cxtofp 9081325
veclast 9372785
ismpzero 9585228
is_intreal_t 9585327
const_col 9730066
nf_get_invzk 9774838
bnf_get_nf 9866332
RgM_dimensions 9954195
ser_isexactzero 10120354
mkvec4 10146727
ell_get_a6 10370979
mkcol 10652841
ZC_hnfrem 10697443
mul_denom 10709519
ell_get_c4 11018202
Fp_addmul 11214155
gc_INT_affii 11567615
vectrunc_init 11768427
pr_get_gen 12072590
abgrp_get_cyc 12231290
F2v_clear 12353280
F2x_clear 12353290
ell_get_type 12499203
nbits2nlong 12715479
zeropol 12864870
pol0_F2x 13228645
ell_get_c6 13474589
gmax_shallow 13510227
modpr_get_T 13867097
zeromatcopy 14378024
closure_get_frame 14720095
rowpermute 14757589
Fp_div 15032637
Fp_divu 15127141
mkvec5 15186580
vectrunc_append 15858730
pr_get_e 16167285
ell_get_disc 16815534
matslice 16825130
normalize_frac 17205746
pr_is_inert 17224305
isint1 17586863
Fp_center_i 18040985
cxcompotor 18214542
qfb_disc 18502541
mkvecsmall4 18683576
const_vecsmall 18747628
Fp_double 20790407
vecpermute 21096928
Flx_div_pre 21692805
nf_get_M 21745897
RgM_shallowcopy 22234265
RgX_is_ZX 22311218
Fp_inv 23436240
nf_get_r1 23466315
ZV_isscalar 23675384
gmulgs 23833813
get_Flx_mod 25496704
pol_0 25907667
pr_get_f 26444411
RgX_equal_var 26880193
shallowcopy 27896274
mkqfb 27928792
zerovec 29344800
modpr_get_pr 31236619
Fp_neg 31478187
hash_str_len 31636900
submulii 31985153
RgV_is_ZV 32095277
mkmat2 33666133
RgC_gtofp 34035220
const_vec 34651939
zero_zv 37302982
polx_Flx 37498348
lincombii 38264585
znstar_get_N 38658713
mkfrac 41639694
powii 43130082
is_vec_t 43906136
closure_is_variadic 45910567
absfrac 46515967
ell_is_inf 49438942
pr_get_tau 49773574
guncloneNULL 49828609
mkmat22 50260692
QV_isscalar 54420113
pol1_Flx 54900574
addmuliu_inplace 59566567
zero_Flv 59737322
F2x_copy 59751221
submuliu_inplace 60081197
gtodouble 60943369
is_real_t 61897670
Fp_sqr 63642935
qfb_is_qfi 64472269
Fp_mulu 67039573
get_Flx_var 68372876
mkvec 69634122
nf_get_degree 71377064
Fp_center 77390499
vecsmallpermute 78754709
rowslice 79459106
sqrtr 80383909
perm_mul 80951010
get_Flx_degree 81428177
Fp_red 82931035
gtos 85855738
is_noncalc_t 88450707
cxnorm 91204865
mkcomplex 91625309
pr_get_p 92761217
dbllog2r 92841277
nf_get_pol 98122025
vecsmalltrunc_append 100797873
F2v_set 101429956
gc_all 102397788
RgX_copy 102480439
pol0_Flx 103157566
mkvecsmall3 103263304
prec2nbits 103967043
cgiv 105473553
vecsmall_prefixcmp 108088071
F2x_renormalize 112600214
mkvec3 117400280
gaddgs 123253958
F2x_set 123341537
both_odd 124114711
zerocol 125146718
nchar2nlong 127793378
mkvecsmall 131360477
equalim1 139505560
bit_prec 143298061
FpX_renormalize 145678756
ZX_renormalize 155017492
mkcol2 156994131
nbrows 158270764
leading_coeff 171564116
Flx_copy 173133552
Fp_add 180943622
nbits2prec 186164763
Fp_mul 200773207
Fp_sub 202794907
mkvec2 212083005
mkvecsmall2 235084537
vecsmalltrunc_init 241902599
gc_GEN 245547051
gtofp 254463569
gmulgu 283104681
closure_get_data 305800740
closure_get_oper 305831751
closure_codestr 305851385
is_universal_constant 326563504
lgcols 352681041
closure_arity 356267773
is_scalar_t 403349461
lg_increase 442578330
bin_copy 471303952
pari_free 485667718
is_bigint 571779005
leafcopy_avma 590450519
vecslice 657386942
F2v_coeff 661435371
F2x_coeff 668036563
pari_malloc 721731443
is_matvec_t 741150857
pari_stack_new 910682707
GENbinbase 915836889
pari_stack_alloc 1005968270
pari_stack_base 1011854678
gc_leaf 1126949609
equali1 1166212220
nbits2extraprec 1458189267
gc_upto 1944698066
odd 2120641349
is_pm1 2214122757
lgpol 2600025220
isintzero 2839341671
bit_accuracy 3128569832
gc_INT 4133147730
prec2lg 4471640745
is_const_t 4981999639
degpol 5481701473
remsBIL 8016270694
icopy_avma 8045130409
divsBIL 8107158010
isonstack 8294519693
is_recursive_t 9070781698

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