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 30703-cd958ce78c) Lines: 1422 1535 92.6 %
Date: 2026-02-23 09:22:43 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
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
zero_F2x 1350
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 1897
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 5872
gal_get_p 6006
FqX_get_red 6090
gval 6230
FqXn_expint 6590
gal_get_orders 6678
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 8113
gchar_get_mod 8225
locs_get_mod 8225
ndec2nbits 8270
FqX_gcd 8288
bnf_get_no 8372
vectrunc_append_batch 9667
prec2ndec 9778
cgetalloc 10187
ZX_equal1 10488
gchar_get_Ui 10983
vec_shorten 11557
R_abs_shallow 13097
gchar_get_nfprec 13468
closure_get_dbg 13642
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15435
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
nf_get_Tr 22083
gtomp 22428
RgM_fpnorml2 22661
FqXQ_mul 22766
ZV_dvd 23485
gal_get_mod 23758
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
gal_get_roots 32732
gchar_get_basis 32816
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33559
Qtoss 35364
gal_get_pol 36316
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37114
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 37757
FqX_div 38566
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
FqX_degfact 47786
pari_calloc 47839
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58504
RgX_fpnorml2 61600
err_get_num 62572
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68163
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 75641
bnr_get_mod 77118
gal_get_group 80386
mkcol3 88314
cyclic_perm 99911
gtou 100667
mkcol4 103467
zv_to_zx 104146
mkmoo 108804
zeromat 109101
RgV_isin 110151
RgV_isin_i 110151
mkvec2copy 114528
Q_abs_shallow 120237
mkmatcopy 122284
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138437
zeroser 138992
RgV_is_QV 140735
FqX_factor 140960
get_FpXQX_mod 146583
FlxqX_div_pre 165412
znstar_get_U 176107
rowslicepermute 185053
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200424
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220247
mkcol6 232470
ellR_get_prec 232750
zero_Flm_copy 238230
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 277487
gchar_get_zm 281911
bnf_get_tuN 282998
bnf_get_fu_nocheck 289099
bnf_get_tuU 303586
nf_get_G 304899
vec_prepend 313999
get_FlxqX_degree 317580
rnf_get_polabs 327628
Flx_constant 334005
cxtoreal 337202
upr_norm 346133
RgX_renormalize 349807
abgrp_get_no 354935
ZM_hnfrem 363804
FqX_mul 367710
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384922
RgX_is_QX 399938
perm_conj 418299
FqX_Fq_mul 427298
FqX_extgcd 444767
Z_issquare 457655
nf_get_disc 463471
precdbl 475413
RgX_shift_inplace 479401
RgX_shift_inplace_init 479401
zv_to_ZV 502982
vecsmall_to_vec 511781
nf_get_sign 519551
mkvec3s 524441
gdivsg 531590
addmuliu 541536
FqX_Fp_mul 571670
prec2nbits_mul 581165
vecsmall_ei 584682
ZM_ZV_mod 596613
RgC_fpnorml2 619854
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 754857
gcmpgs 761910
row 763895
rnf_get_nf 786086
ellff_get_a4a6 800058
zero_F2m_copy 845010
FpXX_renormalize 849903
zeropadic 857283
gmin_shallow 877840
affgr 899594
ZXQ_sqr 960356
cgetc 975455
Flx_lead 978739
polx_F2x 1073707
pr_norm 1090534
sstoQ 1097313
Fp_invsafe 1098033
Flx_mulu 1105438
vecsmall_max 1164121
ellinf 1208324
mkfracss 1209563
RgV_isscalar 1210271
gen_I 1269758
RgX_is_monomial 1331372
mkoo 1331864
bnf_get_sunits 1367775
rnf_get_absdegree 1392746
bnr_get_nf 1399078
zero_Flx 1426769
constant_coeff 1441451
Rg_col_ei 1451031
inf_get_sign 1452912
vecsmall_concat 1464154
nf_get_varn 1503783
guncloneNULL_deep 1512944
bid_get_mod 1521922
F2m_flip 1553635
F2v_flip 1553635
F2x_flip 1553635
F2x_div 1558316
uutoQ 1602144
nf_get_roots 1628969
bnf_get_gen 1680310
vec_ei 1713899
ulogint 1717132
mkvecsmall5 1717518
gsubgs 1724813
nf_get_roundG 1748198
abgrp_get_gen 1765024
modpr_get_p 1887627
get_F2x_degree 1928892
killblock 1960564
Flx_div 1998012
ellnf_get_nf 2027257
ellff_get_field 2036919
bnr_get_bid 2046101
ell_get_j 2126269
bid_get_MOD 2157262
bid_get_sprk 2157995
ZXQ_mul 2161121
zv_copy 2183809
bid_get_fact2 2201582
gc_slice 2204525
pol_xn 2249572
pari_realloc_ip 2350044
bid_get_archp 2397156
get_F2x_mod 2489692
bid_get_fact 2498979
rnf_get_degree 2506335
bnr_get_cyc 2522578
get_F2x_var 2534128
ell_get_b4 2550216
Flv_copy 2555069
mul_content 2657277
RgX_coeff 2669861
vecslicepermute 2691739
cyc_get_expo 2757575
hash_str 2774481
perm_inv 2781966
sqrtnr 2810234
bnr_get_clgp 2830254
zero_Flm 2830564
rnf_get_pol 2845192
znstar_get_pe 2869063
F2x_equal1 2873856
bnf_get_logfu 2874772
gisdouble 2996444
mkpolmod 3103722
Fq_red 3106627
bit_accuracy_mul 3175730
ZV_to_zv 3211716
identity_perm 3242191
F3m_coeff 3255870
identity_zv 3266542
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3392018
vec_append 3464632
zero_F2v 3647545
bid_get_U 3680243
bnf_get_cyc 3686151
bnr_get_bnf 3710954
nf_get_index 3711392
pol_1 3753526
pol_x 3857519
ell_get_b6 3863115
mulsubii 3881768
pol1_F2x 3947246
vec_to_vecsmall 4036942
vecsmall_append 4114674
sqrfrac 4148220
vecsmall_copy 4403793
mkcol2s 4416244
F2x_equal 4614342
FpXQX_renormalize 4694589
mkmat 4750814
qfb_disc3 4995736
mkfraccopy 4999636
is_rational_t 5032671
bnf_get_clgp 5375006
nf_get_zkprimpart 5413965
nf_get_zkden 5459768
FpX_div 5581244
checkell_i 5593262
isintm1 5710452
bid_get_cyc 5739855
bid_get_grp 5804709
pari_stack_delete 5898933
col_ei 5924570
pari_stack_init 6353522
Flm_copy 6433568
sqrti 6610324
get_FpX_var 6958216
get_FpX_degree 6968761
RgX_div 6998010
vecsmall_lexcmp 7043259
ell_get_a2 7106191
ZM_lll 7117606
RgX_gtofp 7145660
znstar_get_faN 7334819
ell_get_b2 7371051
ZX_is_monic 7374287
zc_to_ZC 7824585
vecsmall_to_col 7838767
znstar_get_conreycyc 7982108
Q_abs 8062823
mkintmod 8071082
ZV_ZV_mod 8131902
F2m_coeff 8154611
Flx_equal1 8195560
RgM_gtofp 8257777
gc_INT_affii 8489809
ell_get_a4 8536732
Flm_row 8741578
ell_get_a3 8814080
ell_get_a1 8997112
cxtofp 9079896
veclast 9372757
ismpzero 9584545
is_intreal_t 9584644
const_col 9729656
RgM_dimensions 9741571
nf_get_invzk 9767553
bnf_get_nf 9865192
mkvec4 10094900
ser_isexactzero 10120368
ell_get_a6 10370970
mkcol 10639735
ZC_hnfrem 10697424
mul_denom 10707504
ell_get_c4 11018251
Fp_addmul 11341955
vectrunc_init 11767200
pr_get_gen 12071211
abgrp_get_cyc 12230857
F2v_clear 12352807
F2x_clear 12352820
ell_get_type 12498828
nbits2nlong 12711899
pol0_F2x 13178484
ell_get_c6 13474614
gmax_shallow 13510200
modpr_get_T 13867165
zeromatcopy 14249664
rowpermute 14706472
closure_get_frame 14717075
Fp_div 15035667
Fp_divu 15130123
mkvec5 15185812
vectrunc_append 15854077
pr_get_e 16162149
ell_get_disc 16815719
matslice 16824932
normalize_frac 17206110
pr_is_inert 17224104
isint1 17586594
Fp_center_i 18029209
cxcompotor 18211629
qfb_disc 18502529
mkvecsmall4 18680191
const_vecsmall 19706910
vecpermute 20549673
Fp_double 21097134
Flx_div_pre 21688996
nf_get_M 21746202
RgM_shallowcopy 22179252
RgX_is_ZX 22423187
gmulgs 22617521
Fp_inv 23437287
nf_get_r1 23466587
ZV_isscalar 23675475
get_Flx_mod 25493062
pr_get_f 26443182
RgX_equal_var 26883017
shallowcopy 27632009
mkqfb 27929620
zerovec 29292323
modpr_get_pr 31236720
Fp_neg 31472517
hash_str_len 31635736
submulii 31982591
RgV_is_ZV 32160199
mkmat2 33654398
RgC_gtofp 34031697
const_vec 34565631
zero_zv 35975592
polx_Flx 37485350
lincombii 38225525
znstar_get_N 38658713
mkfrac 41646190
zeropol 42353393
powii 43130327
is_vec_t 43955827
closure_is_variadic 45906033
absfrac 46540325
ell_is_inf 49393753
guncloneNULL 49648010
pr_get_tau 49768422
mkmat22 50254754
qfb_is_qfi 53643705
QV_isscalar 54416230
pol1_Flx 54885331
zero_Flv 58406120
F2x_copy 59083082
addmuliu_inplace 59650954
submuliu_inplace 60143774
gtodouble 60784841
is_real_t 62059907
Fp_sqr 64551184
get_Flx_var 68357017
Fp_mulu 68907036
mkvec 70609808
nf_get_degree 71370286
Fp_center 77367660
vecsmallpermute 78725803
rowslice 79359860
sqrtr 80377374
perm_mul 80921013
Fp_red 82193175
get_Flx_degree 82210850
pol_0 82782945
is_noncalc_t 85780236
gtos 85855713
cxnorm 91201828
mkcomplex 91617933
pr_get_p 92750896
dbllog2r 92821114
nf_get_pol 98110107
vecsmalltrunc_append 100857919
F2v_set 101428224
gc_all 101974020
cgiv 102672230
pol0_Flx 103054473
mkvecsmall3 103238783
RgX_copy 103403532
prec2nbits 103971068
vecsmall_prefixcmp 108088071
F2x_renormalize 111649378
mkvec3 119787227
zerocol 122333541
F2x_set 123092111
gaddgs 123248652
both_odd 124082147
nchar2nlong 127583391
mkvecsmall 131216674
equalim1 139505441
bit_prec 143257386
FpX_renormalize 145820998
ZX_renormalize 155008057
mkcol2 156851216
nbrows 157470761
leading_coeff 171834299
Flx_copy 173106605
Fp_add 181498724
mkvec2 185345758
nbits2prec 186142657
vecsmalltrunc_init 190007436
Fp_mul 200951878
Fp_sub 203364328
gc_GEN 233240618
mkvecsmall2 234797608
gtofp 254340548
gmulgu 283104681
lg_increase 317439416
closure_get_data 321857864
closure_get_oper 321875627
closure_codestr 321887134
is_universal_constant 326476426
lgcols 351653377
closure_arity 372309622
is_scalar_t 375680710
bin_copy 470745304
pari_free 484257873
leafcopy_avma 563016421
is_bigint 563937112
vecslice 656981268
is_matvec_t 659235811
F2v_coeff 661427110
F2x_coeff 667937749
pari_malloc 720162177
GENbinbase 914723850
pari_stack_new 926712264
pari_stack_alloc 1022004896
pari_stack_base 1027871905
gc_leaf 1133813286
equali1 1153353315
nbits2extraprec 1458504322
gc_upto 1957457262
odd 2090879280
is_pm1 2204785253
lgpol 2672975174
isintzero 2845485116
bit_accuracy 3081730483
gc_INT 4124598349
prec2lg 4471859064
is_const_t 4900472501
degpol 5492200892
remsBIL 7983576389
icopy_avma 8006213304
divsBIL 8074151554
isonstack 8287571419
is_recursive_t 9164909904

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