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 30759-17b423fb9b) Lines: 1422 1535 92.6 %
Date: 2026-03-21 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 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 11556
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 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 29945
gchar_get_basis 32816
gal_get_roots 32844
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33582
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 37879
FqX_div 38565
FqX_deriv 40061
mkcols 40411
bid_get_arch 41187
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 61607
err_get_num 62595
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68159
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 75751
bnr_get_mod 77118
gal_get_group 80416
mkcol3 88314
cyclic_perm 99932
gtou 100700
mkcol4 103467
zv_to_zx 104146
mkmoo 108897
zeromat 109024
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114529
Q_abs_shallow 120219
mkmatcopy 122322
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138811
zeroser 138992
FqX_factor 140960
RgV_is_QV 141997
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 200662
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220727
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234825
zero_Flm_copy 238309
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 283001
bnf_get_fu_nocheck 289093
bnf_get_tuU 303582
nf_get_G 304886
vec_prepend 313924
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337204
upr_norm 346136
RgX_renormalize 349807
FqX_mul 367936
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385000
RgX_is_QX 399945
ZM_hnfrem 401385
abgrp_get_no 406731
perm_conj 418299
FqX_Fq_mul 427290
FqX_extgcd 445019
nf_get_disc 463519
precdbl 476366
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
Z_issquare 509448
nf_get_sign 519599
mkvec3s 524441
addmuliu 541644
gdivsg 559711
zv_to_ZV 569244
FqX_Fp_mul 572204
vecsmall_to_vec 578043
prec2nbits_mul 581094
vecsmall_ei 585118
powIs 588203
ZM_ZV_mod 610716
RgC_fpnorml2 619950
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755014
gcmpgs 761923
row 763896
rnf_get_nf 786086
ellff_get_a4a6 800527
zero_F2m_copy 845274
FpXX_renormalize 849322
zeropadic 857666
gmin_shallow 898218
affgr 899594
ZXQ_sqr 960612
cgetc 975456
Flx_lead 1067719
polx_F2x 1073823
pr_norm 1090611
Flx_constant 1091534
Fp_invsafe 1097236
sstoQ 1097313
Flx_mulu 1105481
vecsmall_max 1177453
ellinf 1208497
mkfracss 1209563
RgV_isscalar 1210271
gen_I 1268854
RgX_is_monomial 1320038
mkoo 1332042
bnf_get_sunits 1367771
rnf_get_absdegree 1392746
bnr_get_nf 1399071
zero_Flx 1427001
constant_coeff 1441277
Rg_col_ei 1451133
inf_get_sign 1453181
vecsmall_concat 1464520
nf_get_varn 1503767
guncloneNULL_deep 1510530
bid_get_mod 1521921
F2m_flip 1553561
F2v_flip 1553561
F2x_flip 1553561
F2x_div 1557472
uutoQ 1602144
nf_get_roots 1628906
bnf_get_gen 1680303
vec_ei 1714760
mkvecsmall5 1718721
gsubgs 1731932
nf_get_roundG 1748567
abgrp_get_gen 1765016
modpr_get_p 1887626
get_F2x_degree 1928593
killblock 1959194
Flx_div 1999806
ellnf_get_nf 2027252
ellff_get_field 2038581
bnr_get_bid 2046095
ulogint 2079877
ell_get_j 2126269
bid_get_MOD 2157253
bid_get_sprk 2157978
ZXQ_mul 2166284
zv_copy 2184167
bid_get_fact2 2201576
gc_slice 2211220
pol_xn 2252838
pari_realloc_ip 2357956
bid_get_archp 2397117
get_F2x_mod 2490680
bid_get_fact 2498951
rnf_get_degree 2506335
bnr_get_cyc 2522569
get_F2x_var 2536893
ell_get_b4 2550293
Flv_copy 2555433
mul_content 2657600
cyc_get_expo 2757560
hash_str 2757652
sqrtnr 2810747
bnr_get_clgp 2830250
zero_Flm 2830913
rnf_get_pol 2845192
vecslicepermute 2859548
znstar_get_pe 2869063
F2x_equal1 2873598
bnf_get_logfu 2874751
RgX_coeff 2889731
gisdouble 2996164
mkpolmod 3075567
Fq_red 3106477
bit_accuracy_mul 3175715
ZV_to_zv 3211715
identity_perm 3243205
F3m_coeff 3255557
identity_zv 3267569
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3387871
vec_append 3468974
zero_F2v 3656476
bid_get_U 3680230
bnf_get_cyc 3686604
bnr_get_bnf 3710947
nf_get_index 3712016
perm_inv 3747290
pol_1 3752579
pol_x 3860482
ell_get_b6 3863192
mulsubii 3893081
pol1_F2x 3952226
vec_to_vecsmall 4039424
vecsmall_append 4114679
sqrfrac 4151009
mkcol2s 4416244
F2x_equal 4607408
FpXQX_renormalize 4693038
mkmat 4780046
qfb_disc3 4995202
mkfraccopy 4999668
is_rational_t 5017656
vecsmall_copy 5369894
bnf_get_clgp 5375451
nf_get_zkprimpart 5416120
nf_get_zkden 5462133
FpX_div 5582026
checkell_i 5593744
bid_get_cyc 5739833
bid_get_grp 5804681
pari_stack_delete 5889934
col_ei 5925326
isintm1 6086494
pari_stack_init 6375834
Flm_copy 6434467
sqrti 6612745
get_FpX_var 6954701
get_FpX_degree 6969461
RgX_div 6997065
vecsmall_lexcmp 7043084
ell_get_a2 7106329
ZM_lll 7117710
RgX_gtofp 7164139
ZX_is_monic 7319901
znstar_get_faN 7334819
ell_get_b2 7371380
zc_to_ZC 7911056
vecsmall_to_col 7925601
znstar_get_conreycyc 7982108
Q_abs 8060914
mkintmod 8065642
ZV_ZV_mod 8147193
Flx_equal1 8195600
RgM_gtofp 8257590
F2m_coeff 8360891
ell_get_a4 8536870
Flm_row 8743102
ell_get_a3 8814548
ell_get_a1 8997580
cxtofp 9092770
veclast 9374234
ismpzero 9702743
is_intreal_t 9702841
const_col 9730090
nf_get_invzk 9774804
bnf_get_nf 9866277
RgM_dimensions 9954838
mkvec4 10150244
ell_get_a6 10371108
mkcol 10653536
ZC_hnfrem 10697510
mul_denom 10709706
ell_get_c4 11019098
Fp_addmul 11235645
ser_isexactzero 11434254
gc_INT_affii 11586304
vectrunc_init 11767599
pr_get_gen 12072700
abgrp_get_cyc 12231255
F2x_clear 12360649
F2v_clear 12360655
ell_get_type 12499870
nbits2nlong 12723942
zeropol 12867502
pol0_F2x 13183205
ell_get_c6 13474850
gmax_shallow 13510228
modpr_get_T 13867118
zeromatcopy 14377923
closure_get_frame 14734953
rowpermute 14758784
Fp_div 15034621
Fp_divu 15129183
mkvec5 15187660
vectrunc_append 15857927
pr_get_e 16167579
ell_get_disc 16816781
matslice 16825166
pr_is_inert 17224627
normalize_frac 17311512
isint1 17987108
Fp_center_i 18031430
cxcompotor 18237355
qfb_disc 18502541
mkvecsmall4 18684297
const_vecsmall 18861247
Fp_double 20857482
vecpermute 21112784
Flx_div_pre 21710217
nf_get_M 21745902
RgM_shallowcopy 22235741
RgX_is_ZX 22315641
Fp_inv 23436150
nf_get_r1 23466303
ZV_isscalar 23675388
gmulgs 23871074
get_Flx_mod 25501572
pol_0 26065148
pr_get_f 26444827
RgX_equal_var 26880182
shallowcopy 27897865
mkqfb 27928546
zerovec 29348327
modpr_get_pr 31236608
Fp_neg 31480247
hash_str_len 31655249
submulii 31985063
RgV_is_ZV 32095990
mkmat2 33666405
RgC_gtofp 34032978
const_vec 34677679
zero_zv 37303455
polx_Flx 37498565
lincombii 38262662
znstar_get_N 38658713
mkfrac 41927064
powii 43130205
is_vec_t 43953948
closure_is_variadic 45931073
absfrac 46991166
ell_is_inf 49413246
pr_get_tau 49774117
guncloneNULL 49831147
mkmat22 50260166
QV_isscalar 54420615
pol1_Flx 54912482
F2x_copy 59079324
addmuliu_inplace 59562167
zero_Flv 59747183
submuliu_inplace 60074797
is_real_t 61899891
Fp_sqr 64241633
qfb_is_qfi 64519459
gtodouble 66247060
get_Flx_var 68383346
mkvec 69693569
Fp_mulu 71353073
nf_get_degree 71378027
Fp_center 77381032
vecsmallpermute 78757092
rowslice 79466204
perm_mul 80953315
Fp_red 82931035
get_Flx_degree 83564436
gtos 85865498
sqrtr 86882409
is_noncalc_t 88498715
mkcomplex 91995910
pr_get_p 92761880
cxnorm 94062404
dbllog2r 94328876
nf_get_pol 98122960
vecsmalltrunc_append 100866633
RgX_copy 102485492
gc_all 102551618
pol0_Flx 103146025
mkvecsmall3 103266847
F2v_set 104113894
cgiv 105481538
prec2nbits 106950539
vecsmall_prefixcmp 108088071
F2x_renormalize 111752234
gaddgs 123270538
mkvec3 123902106
both_odd 124164101
zerocol 125155775
F2x_set 125845666
nchar2nlong 127920824
mkvecsmall 131790589
equalim1 139568094
bit_prec 143402186
FpX_renormalize 145871282
ZX_renormalize 155191107
mkcol2 156992150
nbrows 158273821
leading_coeff 169336183
Flx_copy 173813803
Fp_add 181103920
nbits2prec 189004859
Fp_mul 201035579
Fp_sub 202603083
mkvec2 212744910
vecsmalltrunc_init 242688987
gc_GEN 246998544
mkvecsmall2 256223089
gtofp 257178315
gmulgu 283360013
closure_get_data 306005081
closure_get_oper 306026397
closure_codestr 306037868
is_universal_constant 326557373
lgcols 352693815
closure_arity 356487578
is_scalar_t 403468142
lg_increase 443369482
bin_copy 473128198
pari_free 487490422
is_bigint 574384692
leafcopy_avma 594948848
vecslice 657449220
F2v_coeff 664428411
F2x_coeff 671055547
pari_malloc 723581941
is_matvec_t 742856333
pari_stack_new 911012198
GENbinbase 919493497
pari_stack_alloc 1006351132
pari_stack_base 1012180695
gc_leaf 1148481730
equali1 1169392752
nbits2extraprec 1498202037
gc_upto 1956784784
odd 2124596425
is_pm1 2217744713
lgpol 2597257542
isintzero 2849210750
bit_accuracy 3128626978
gc_INT 4136520204
prec2lg 4566754956
is_const_t 5006410525
degpol 5533955729
icopy_avma 8051318092
remsBIL 8141793084
divsBIL 8232526467
isonstack 8332385535
is_recursive_t 9102743906

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