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 30660-09c6d0ed2e) Lines: 1420 1535 92.5 %
Date: 2026-02-02 09:23:03 Functions: 649 707 91.8 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
F2m_clear 0
F2m_coeff 8038930
F2m_copy 200434
F2m_flip 1554354
F2m_set 798
F2v_clear 12354001
F2v_coeff 661322293
F2v_copy 4487
F2v_ei 42
F2v_flip 1554354
F2v_set 101403742
F2v_to_F2x 38001
F2xX_shift 0
F2x_clear 12353440
F2x_coeff 667916648
F2x_copy 60555963
F2x_div 1571875
F2x_equal 4673515
F2x_equal1 2874114
F2x_flip 1554354
F2x_renormalize 115422221
F2x_set 124783730
F2xqX_div 33173
F3m_coeff 3255922
F3m_copy 0
F3m_set 0
Flm_copy 6433599
Flm_row 8741492
Flv_copy 2555093
Flx_constant 334022
Flx_copy 173221147
Flx_div 1997996
Flx_div_pre 21690101
Flx_equal1 8330054
Flx_lead 978587
Flx_mulu 1105451
FlxqX_div 0
FlxqX_div_pre 165417
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694543
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581189
FpX_renormalize 144218405
Fp_add 181326596
Fp_addmul 11244459
Fp_center 77198266
Fp_center_i 18020605
Fp_div 15034349
Fp_divu 15128829
Fp_double 20925319
Fp_halve 247271
Fp_inv 23440513
Fp_invsafe 1100353
Fp_mul 200805096
Fp_muls 17780
Fp_mulu 67483680
Fp_neg 31480685
Fp_red 82198574
Fp_sqr 64356414
Fp_sub 202925337
FqXQ_add 0
FqXQ_div 0
FqXQ_inv 0
FqXQ_invsafe 0
FqXQ_mul 22766
FqXQ_pow 0
FqXQ_sqr 0
FqXQ_sub 0
FqX_Fp_mul 571639
FqX_Fq_mul 427300
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38568
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444768
FqX_factor 140946
FqX_factor_squarefree 7
FqX_gcd 8288
FqX_get_red 6090
FqX_halfgcd 0
FqX_halve 19411
FqX_integ 0
FqX_is_squarefree 683802
FqX_mul 367705
FqX_mulu 21942
FqX_neg 24956
FqX_normalize 4144
FqX_powu 1295
FqX_red 25354
FqX_rem 37743
FqX_roots 7273
FqX_sqr 71855
FqX_sub 68607
FqX_to_mod 175
FqXn_exp 0
FqXn_expint 6590
FqXn_inv 7126
FqXn_mul 263403
FqXn_sqr 0
Fq_red 3106499
Fq_to_FpXQ 73652
GENbinbase 961903891
QV_isscalar 54415604
Q_abs 8062512
Q_abs_shallow 120237
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619852
RgC_gtofp 34030396
RgC_gtomp 574
RgM_dimensions 9741806
RgM_fpnorml2 22662
RgM_gtofp 8257545
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179111
RgV_gtofp 56
RgV_is_QV 140733
RgV_is_ZV 32158276
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210272
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406694
RgX_div 7000642
RgX_equal_var 26883018
RgX_fpnorml2 61600
RgX_gtofp 7145273
RgX_is_QX 399937
RgX_is_ZX 22423261
RgX_is_monomial 1331326
RgX_is_rational 68165
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479367
RgX_shift_inplace_init 479367
RgX_to_RgV 140
Rg_col_ei 1450985
Rg_to_Fq 756
ZC_hnfrem 10697423
ZM_ZV_mod 596488
ZM_hnfrem 363825
ZM_lll 7117468
ZV_ZV_mod 8131535
ZV_dvd 23485
ZV_isscalar 23674613
ZV_to_zv 3211408
ZXQ_mul 2161201
ZXQ_sqr 960445
ZX_equal1 12850
ZX_is_monic 7374297
ZX_renormalize 155025798
Z_ispower 98
Z_issquare 457641
abgrp_get_cyc 12230802
abgrp_get_gen 1765031
abgrp_get_no 354950
absfrac 46638591
absfrac_shallow 28237
addmuliu 535781
addmuliu_inplace 59646461
affc_fixlg 249620
affgr 899594
bid_get_MOD 2157246
bid_get_U 3680224
bid_get_arch 41188
bid_get_archp 2397118
bid_get_cyc 5739812
bid_get_fact 2498935
bid_get_fact2 2201567
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804667
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157974
bin_copy 496058018
bit_accuracy 3160674681
bit_accuracy_mul 3175484
bit_prec 143254880
bnf_get_clgp 5375011
bnf_get_cyc 3686149
bnf_get_fu 25859
bnf_get_fu_nocheck 289094
bnf_get_gen 1680316
bnf_get_logfu 2874757
bnf_get_nf 9865152
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367776
bnf_get_tuN 283004
bnf_get_tuU 303586
bnr_get_bid 2046093
bnr_get_bnf 3710948
bnr_get_clgp 2830242
bnr_get_cyc 2522569
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399081
bnr_get_no 277490
both_odd 124014287
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975456
cgiv 102685771
checkell_i 5593351
closure_arity 372668193
closure_codestr 322251221
closure_get_code 0
closure_get_data 322203329
closure_get_dbg 13635
closure_get_frame 14715503
closure_get_oper 322233358
closure_get_text 37079
closure_is_variadic 45903723
col_ei 5924554
coltrunc_init 740250
const_col 9729649
const_vec 34565473
const_vecsmall 19706163
constant_coeff 1441434
cxcompotor 18208660
cxnorm 91195882
cxtofp 9078374
cxtoreal 337203
cyc_get_expo 2757552
cyclic_perm 99911
dbllog2r 92816382
degpol 5492879504
div_content 58504
divsBIL 8095642736
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997083
ell_get_a2 7106185
ell_get_a3 8814051
ell_get_a4 8536726
ell_get_a6 10370964
ell_get_b2 7371028
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017854
ell_get_c6 13474234
ell_get_disc 16814840
ell_get_j 2126269
ell_get_type 12499269
ell_is_inf 52399148
ellff_get_a4a6 800029
ellff_get_field 2036864
ellinf 1870003
ellnf_get_bnf 119
ellnf_get_nf 2027264
equali1 1174324618
equalim1 139505503
err_get_compo 294
err_get_num 62550
gaddgs 123248610
gal_get_den 27867
gal_get_e 91
gal_get_gen 15435
gal_get_group 80386
gal_get_invvdm 27874
gal_get_mod 23758
gal_get_orders 6678
gal_get_p 6006
gal_get_pol 36316
gal_get_roots 32732
gc_GEN 255522313
gc_INT 4111265128
gc_INT_affii 8491959
gc_all 109635353
gc_leaf 1137123718
gc_slice 2204241
gc_upto 1954576112
gchar_copy_precs 1225
gchar_get_DLdata 190673
gchar_get_S 36995
gchar_get_U 0
gchar_get_Ui 10983
gchar_get_basis 32816
gchar_get_bnf 205373
gchar_get_cyc 16177
gchar_get_evalprec 4011
gchar_get_hnf 0
gchar_get_loccyc 50519
gchar_get_m0 3318
gchar_get_mod 8225
gchar_get_modP 4095
gchar_get_nalg 2044
gchar_get_nc 37261
gchar_get_nf 243946
gchar_get_nfprec 13468
gchar_get_nfree 322
gchar_get_nm 1869
gchar_get_ns 36995
gchar_get_ntors 322
gchar_get_prec 18795
gchar_get_r1 17444
gchar_get_r2 623
gchar_get_sfu 1743
gchar_get_u0 4252
gchar_get_zm 281911
gchar_set_HUUi 630
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_set_evalprec 1813
gchar_set_m0 945
gchar_set_nalg 630
gchar_set_nf 2110
gchar_set_nfprec 2968
gchar_set_nfree 630
gchar_set_ntors 630
gchar_set_prec 1225
gchar_set_u0 2121
gcmpgs 761914
gdivsg 531592
gen_I 1269729
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1929058
get_F2x_mod 2499348
get_F2x_var 2534077
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82243056
get_Flx_mod 25597660
get_Flx_var 68360353
get_FlxqX_degree 317565
get_FlxqX_mod 8033
get_FlxqX_var 264420
get_FpXQX_degree 3589
get_FpXQX_mod 146583
get_FpXQX_var 51630
get_FpX_degree 6424526
get_FpX_mod 3394356
get_FpX_var 6958235
gisdouble 2995989
gmax_shallow 13510197
gmaxsg 0
gmin_shallow 877803
gminsg 0
gmulgs 22619226
gmulgu 282059385
gsubgs 1724818
gtodouble 60778146
gtofp 254322267
gtomp 22428
gtos 85855639
gtou 100709
guncloneNULL 48008291
guncloneNULL_deep 1494856
gval 6230
hash_str 2760614
hash_str_len 31630475
icopy_avma 8040676263
idealchineseinit 5427
idealred 138439
identity_ZV 8113
identity_perm 3241581
identity_zv 3265931
inf_get_sign 1452886
inv_content 0
is_bigint 563416122
is_const_t 4901000138
is_extscalar_t 6876
is_intreal_t 9584539
is_matvec_t 659658945
is_noncalc_t 85870778
is_pm1 2205224073
is_qfb_t 0
is_rational_t 5032592
is_real_t 62062521
is_recursive_t 9238285933
is_scalar_t 375658248
is_universal_constant 326635231
is_vec_t 43954398
isint1 17584870
isintm1 5710234
isintzero 2844910890
ismpzero 9584432
isonstack 8275565845
killblock 1950235
leading_coeff 170224891
leafcopy_avma 577543627
lg_increase 317104346
lgcols 351603080
lgpol 2688613756
lincombii 38227688
locs_get_Lgenfil 1288
locs_get_Lsprk 193935
locs_get_cyc 52136
locs_get_famod 1288
locs_get_m_infty 209475
locs_get_mod 8225
logint 754838
matpascal 3983
matslice 16819106
mkcol 10639742
mkcol2 156893862
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33556
mkcols 40411
mkcomplex 91601620
mkerr 0
mkfrac 41642434
mkfraccopy 4999618
mkfracss 1209563
mkintmod 8092559
mkintmodu 1813
mkmat 4750953
mkmat2 33653775
mkmat22 50284076
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122262
mkmoo 108794
mkoo 1331835
mkpadic 2009
mkpolmod 3103724
mkqfb 27929492
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71188719
mkvec2 185302463
mkvec2copy 114531
mkvec2s 220245
mkvec3 117906684
mkvec3s 524441
mkvec4 10093849
mkvec4s 21
mkvec5 15185716
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131655606
mkvecsmall2 234964130
mkvecsmall3 104189407
mkvecsmall4 18673672
mkvecsmall5 1717506
modpr_get_T 13867108
modpr_get_p 1887626
modpr_get_pr 31236563
mul_content 2657123
mul_denom 10707719
mulsubii 3880349
nbits2extraprec 1458451664
nbits2ndec 228
nbits2nlong 12755353
nbits2prec 186139503
nbrows 157464152
nchar2nlong 127558259
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26299
nf_get_G 304843
nf_get_M 21745364
nf_get_Tr 22083
nf_get_degree 71369039
nf_get_diff 4445
nf_get_disc 463484
nf_get_index 3711409
nf_get_invzk 9767462
nf_get_pol 98107538
nf_get_r1 23465747
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628907
nf_get_roundG 1748155
nf_get_sign 519551
nf_get_varn 1503760
nf_get_zk 4382
nf_get_zkden 5459841
nf_get_zkprimpart 5413990
normalize_frac 17205502
odd 2090212930
pari_calloc 47720
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
pari_err_DIM 718
pari_err_DOMAIN 2862
pari_err_FILE 0
pari_err_FILEDESC 36
pari_err_FLAG 98
pari_err_IMPL 539
pari_err_INV 20018
pari_err_IRREDPOL 63
pari_err_MAXPRIME 0
pari_err_MODULUS 1316
pari_err_OP 406
pari_err_OVERFLOW 156
pari_err_PACKAGE 0
pari_err_PREC 238
pari_err_PRIME 98
pari_err_PRIORITY 245
pari_err_ROOTS0 63
pari_err_SQRTN 7084
pari_err_TYPE 15370
pari_err_TYPE2 3493
pari_err_VAR 371
pari_free 509542697
pari_malloc 745479013
pari_realloc 1890
pari_realloc_ip 2348363
pari_stack_alloc 1022274903
pari_stack_base 1028126955
pari_stack_delete 5842837
pari_stack_init 6351104
pari_stack_new 927008865
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781887
perm_mul 80895806
perm_sqr 728
pol0_F2x 13253704
pol0_Flx 103494010
pol1_F2x 3957979
pol1_Flx 55060014
pol_0 82996766
pol_1 3755763
pol_x 3857116
pol_xn 2249285
pol_xnall 294
polx_F2x 1078789
polx_Flx 37491210
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130060
pr_get_e 16161762
pr_get_f 26442839
pr_get_gen 12070961
pr_get_p 92750021
pr_get_tau 49768177
pr_is_inert 17223859
pr_norm 1090467
prec2lg 4470198961
prec2nbits 103969439
prec2nbits_mul 581165
prec2ndec 9778
precdbl 475389
qfb_disc 18502520
qfb_disc3 4995687
qfb_is_qfi 62324584
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8004317275
rnf_get_absdegree 1392746
rnf_get_alpha 1428
rnf_get_degree 2506335
rnf_get_disc 357
rnf_get_idealdisc 1386
rnf_get_index 105
rnf_get_invzk 1225
rnf_get_k 1225
rnf_get_map 135659
rnf_get_nf 786086
rnf_get_nfdegree 21455
rnf_get_nfpol 255354
rnf_get_nfvarn 4886
rnf_get_nfzk 7245
rnf_get_pol 2845192
rnf_get_polabs 327628
rnf_get_ramified_primes 2849
rnf_get_varn 574
rnf_get_zk 4830
row 763891
row_i 987
rowcopy 204988
rowpermute 14705431
rowslice 79317888
rowslicepermute 184988
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27631569
sqrfrac 4148216
sqrti 6610215
sqrtnr 2810105
sqrtr 80371983
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60137838
truecoef 0
trunc_safe 0
ulogint 1717433
upr_norm 346135
uutoQ 1600212
vec_append 3464680
vec_ei 1713852
vec_lengthen 18960
vec_prepend 314011
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036656
veclast 9372721
vecmodii 0
vecmoduu 49784
vecpermute 20547806
vecreverse 697277
vecreverse_inplace 2605
vecslice 655984208
vecslicepermute 2690550
vecsmall_append 4099164
vecsmall_coincidence 0
vecsmall_concat 1464233
vecsmall_copy 4403855
vecsmall_ei 584687
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043251
vecsmall_max 1164089
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75636
vecsmall_to_col 7838711
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78700397
vecsmalltrunc_append 100895752
vecsmalltrunc_init 190164254
vecsplice 384916
vectrunc_append 15853398
vectrunc_append_batch 9667
vectrunc_init 11766998
zc_to_ZC 7824530
zero_F2m 0
zero_F2m_copy 845051
zero_F2v 3647741
zero_F2x 1350
zero_Flm 2829562
zero_Flm_copy 238226
zero_Flv 59673114
zero_Flx 1426894
zero_zm 0
zero_zv 36734301
zero_zx 0
zerocol 122329623
zeromat 109084
zeromatcopy 14249335
zeropadic 855654
zeropadic_shallow 17024
zeropol 42353973
zeroser 138908
zerovec 28453663
zerovec_block 29654
zm_copy 0
zm_row 0
zm_to_zxV 0
zm_transpose 266
znstar_get_N 38655073
znstar_get_U 176107
znstar_get_Ui 46788
znstar_get_conreycyc 7979693
znstar_get_conreygen 3290176
znstar_get_cyc 262088
znstar_get_faN 7331711
znstar_get_gen 16150
znstar_get_no 14
znstar_get_pe 2869063
zv_copy 2183835
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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