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: 2026-03-14 09:23:49 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 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 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 33584
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 37910
FqX_div 38564
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 58510
RgX_fpnorml2 61607
err_get_num 62582
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68157
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 80415
mkcol3 88314
cyclic_perm 99911
gtou 100679
mkcol4 103467
zv_to_zx 104146
mkmoo 108900
zeromat 108989
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114533
Q_abs_shallow 120239
mkmatcopy 122318
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138814
zeroser 138992
FqX_factor 140960
RgV_is_QV 142000
get_FpXQX_mod 146583
FlxqX_div_pre 165416
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200426
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220378
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 233732
zero_Flm_copy 238317
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 277490
gchar_get_zm 281911
bnf_get_tuN 283004
bnf_get_fu_nocheck 289088
bnf_get_tuU 303585
nf_get_G 304838
vec_prepend 313922
get_FlxqX_degree 317580
rnf_get_polabs 327628
Flx_constant 334136
cxtoreal 337205
upr_norm 346135
RgX_renormalize 349807
FqX_mul 367934
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385007
RgX_is_QX 399940
ZM_hnfrem 401441
abgrp_get_no 406726
perm_conj 418299
FqX_Fq_mul 427295
FqX_extgcd 445026
nf_get_disc 463514
precdbl 475640
RgX_shift_inplace 479435
RgX_shift_inplace_init 479435
Z_issquare 509438
nf_get_sign 519601
mkvec3s 524441
gdivsg 531590
addmuliu 541653
zv_to_ZV 568222
FqX_Fp_mul 572204
vecsmall_to_vec 577021
prec2nbits_mul 581080
vecsmall_ei 584798
ZM_ZV_mod 610653
RgC_fpnorml2 619950
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 754939
gcmpgs 761924
row 763888
rnf_get_nf 786086
ellff_get_a4a6 800046
zero_F2m_copy 845075
FpXX_renormalize 849322
zeropadic 857637
gmin_shallow 877895
affgr 899594
ZXQ_sqr 960619
cgetc 975458
Flx_lead 978956
polx_F2x 1078918
pr_norm 1090551
Fp_invsafe 1097236
sstoQ 1097313
Flx_mulu 1105384
vecsmall_max 1164079
ellinf 1208488
mkfracss 1209563
RgV_isscalar 1210269
gen_I 1268284
RgX_is_monomial 1318405
mkoo 1332137
bnf_get_sunits 1367777
rnf_get_absdegree 1392746
bnr_get_nf 1399077
zero_Flx 1427095
constant_coeff 1441261
Rg_col_ei 1451074
inf_get_sign 1453279
vecsmall_concat 1464652
nf_get_varn 1503769
guncloneNULL_deep 1506570
bid_get_mod 1521922
F2m_flip 1554531
F2v_flip 1554531
F2x_flip 1554531
F2x_div 1571441
uutoQ 1602144
nf_get_roots 1628875
bnf_get_gen 1680323
vec_ei 1714362
mkvecsmall5 1717621
gsubgs 1730191
nf_get_roundG 1748517
abgrp_get_gen 1765038
modpr_get_p 1887627
get_F2x_degree 1928218
killblock 1958091
ulogint 1987954
Flx_div 1999790
ellnf_get_nf 2027252
ellff_get_field 2036933
bnr_get_bid 2046098
ell_get_j 2126269
bid_get_MOD 2157245
bid_get_sprk 2157963
ZXQ_mul 2166298
zv_copy 2183786
bid_get_fact2 2201567
gc_slice 2205820
pol_xn 2249874
pari_realloc_ip 2350382
bid_get_archp 2397120
get_F2x_mod 2489574
bid_get_fact 2498933
rnf_get_degree 2506335
bnr_get_cyc 2522586
get_F2x_var 2534481
ell_get_b4 2550216
Flv_copy 2555025
mul_content 2657563
RgX_coeff 2667901
hash_str 2741929
cyc_get_expo 2757539
sqrtnr 2810245
bnr_get_clgp 2830253
zero_Flm 2830639
rnf_get_pol 2845192
vecslicepermute 2854957
znstar_get_pe 2869063
F2x_equal1 2873541
bnf_get_logfu 2874757
gisdouble 2995255
mkpolmod 3075581
Fq_red 3106449
bit_accuracy_mul 3175715
ZV_to_zv 3211713
identity_perm 3242538
F3m_coeff 3255607
identity_zv 3266889
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3387830
vec_append 3468982
zero_F2v 3647827
bid_get_U 3680223
bnf_get_cyc 3686605
bnr_get_bnf 3710955
nf_get_index 3712030
perm_inv 3747148
pol_1 3750950
pol_x 3857977
ell_get_b6 3863115
mulsubii 3892442
pol1_F2x 3950037
vec_to_vecsmall 4039438
vecsmall_append 4114722
sqrfrac 4148335
mkcol2s 4416244
F2x_equal 4669309
FpXQX_renormalize 4692737
mkmat 4780111
qfb_disc3 4995187
mkfraccopy 4999456
is_rational_t 5015311
vecsmall_copy 5369083
bnf_get_clgp 5375473
nf_get_zkprimpart 5416394
nf_get_zkden 5462167
FpX_div 5582030
checkell_i 5593340
isintm1 5711230
bid_get_cyc 5739825
bid_get_grp 5804677
pari_stack_delete 5884155
col_ei 5925351
pari_stack_init 6357408
Flm_copy 6434508
sqrti 6611270
get_FpX_var 6954670
get_FpX_degree 6968739
RgX_div 6996400
vecsmall_lexcmp 7043259
ell_get_a2 7106204
ZM_lll 7117559
RgX_gtofp 7151224
ZX_is_monic 7319904
znstar_get_faN 7334819
ell_get_b2 7371019
zc_to_ZC 7907547
vecsmall_to_col 7922092
znstar_get_conreycyc 7982108
Q_abs 8059640
mkintmod 8061353
ZV_ZV_mod 8147142
F2m_coeff 8156851
Flx_equal1 8195281
RgM_gtofp 8257351
ell_get_a4 8536745
Flm_row 8743657
ell_get_a3 8814062
ell_get_a1 8997094
cxtofp 9079988
veclast 9372788
ismpzero 9585210
is_intreal_t 9585306
const_col 9730113
nf_get_invzk 9774929
bnf_get_nf 9866317
RgM_dimensions 9954165
ser_isexactzero 10120354
mkvec4 10146694
ell_get_a6 10370983
mkcol 10652816
ZC_hnfrem 10697634
mul_denom 10709825
ell_get_c4 11018034
Fp_addmul 11240447
gc_INT_affii 11566721
vectrunc_init 11768084
pr_get_gen 12072631
abgrp_get_cyc 12231248
F2x_clear 12353981
F2v_clear 12353994
ell_get_type 12499229
nbits2nlong 12717346
zeropol 12864858
pol0_F2x 13232527
ell_get_c6 13474431
gmax_shallow 13510227
modpr_get_T 13867074
zeromatcopy 14377024
closure_get_frame 14719982
rowpermute 14757635
Fp_div 15034524
Fp_divu 15129071
mkvec5 15186649
vectrunc_append 15857964
pr_get_e 16167319
ell_get_disc 16815480
matslice 16824519
normalize_frac 17205557
pr_is_inert 17224324
isint1 17586781
Fp_center_i 18042620
cxcompotor 18211777
qfb_disc 18502552
mkvecsmall4 18690504
const_vecsmall 18747841
Fp_double 20830532
vecpermute 21096579
Flx_div_pre 21697243
nf_get_M 21746003
RgM_shallowcopy 22233734
RgX_is_ZX 22311385
Fp_inv 23435822
nf_get_r1 23466594
ZV_isscalar 23675440
gmulgs 23774187
get_Flx_mod 25498066
pol_0 25907655
pr_get_f 26444446
RgX_equal_var 26880196
shallowcopy 27896831
mkqfb 27928505
zerovec 29344875
modpr_get_pr 31236587
Fp_neg 31479810
hash_str_len 31636837
submulii 31985153
RgV_is_ZV 32095289
mkmat2 33665619
RgC_gtofp 34029766
const_vec 34652411
zero_zv 37303931
polx_Flx 37496623
lincombii 38258890
znstar_get_N 38658713
mkfrac 41634612
powii 43130079
is_vec_t 43903768
closure_is_variadic 45910649
absfrac 46516134
ell_is_inf 49398180
pr_get_tau 49773511
guncloneNULL 49824762
mkmat22 50257127
QV_isscalar 54420931
pol1_Flx 54901080
addmuliu_inplace 59623994
zero_Flv 59738540
F2x_copy 59778163
submuliu_inplace 60125212
gtodouble 60938629
is_real_t 61897672
Fp_sqr 63819144
qfb_is_qfi 64477452
get_Flx_var 68370761
Fp_mulu 69114701
mkvec 69628865
nf_get_degree 71377953
Fp_center 77372746
vecsmallpermute 78755128
rowslice 79457470
sqrtr 80376155
perm_mul 80951436
get_Flx_degree 82438541
Fp_red 82931514
gtos 85855733
is_noncalc_t 88450439
cxnorm 91200963
mkcomplex 91614367
pr_get_p 92761014
dbllog2r 92840197
nf_get_pol 98122786
vecsmalltrunc_append 100814980
F2v_set 101430776
gc_all 102397914
RgX_copy 102480433
pol0_Flx 103172620
mkvecsmall3 103261484
prec2nbits 103970770
cgiv 105471322
vecsmall_prefixcmp 108088071
F2x_renormalize 112607432
mkvec3 120437082
gaddgs 123254020
F2x_set 123363905
both_odd 124255122
zerocol 125135473
nchar2nlong 127787779
mkvecsmall 131375814
equalim1 139505707
bit_prec 143275169
FpX_renormalize 145679359
ZX_renormalize 155012503
mkcol2 156989269
nbrows 158260501
leading_coeff 171563371
Flx_copy 173128786
Fp_add 181079153
nbits2prec 186142208
Fp_mul 200823524
Fp_sub 202908842
mkvec2 213118836
mkvecsmall2 235091055
vecsmalltrunc_init 244549299
gc_GEN 245533285
gtofp 254428586
gmulgu 283104681
closure_get_data 305822744
closure_get_oper 305844322
closure_codestr 305869179
is_universal_constant 326475561
lgcols 352676087
closure_arity 356286798
is_scalar_t 403350193
lg_increase 447477195
bin_copy 471287965
pari_free 485646304
is_bigint 571737795
leafcopy_avma 590864587
vecslice 657481149
F2v_coeff 661439781
F2x_coeff 668075579
pari_malloc 721717105
is_matvec_t 741171094
pari_stack_new 910687376
GENbinbase 915811004
pari_stack_alloc 1005967282
pari_stack_base 1011823321
gc_leaf 1130815142
equali1 1166221837
nbits2extraprec 1458356177
gc_upto 1944605105
odd 2120676713
is_pm1 2215301409
lgpol 2605749362
isintzero 2838266846
bit_accuracy 3128364766
gc_INT 4132972299
prec2lg 4471668500
is_const_t 4981255831
degpol 5494525536
remsBIL 8016129265
icopy_avma 8045006883
divsBIL 8107224959
isonstack 8298273345
is_recursive_t 9070409591

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