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 30631-5f55634266) Lines: 1421 1535 92.6 %
Date: 2026-01-24 09:23:06 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 8038629
F2m_copy 200441
F2m_flip 1554224
F2m_set 798
F2v_clear 12353907
F2v_coeff 661320138
F2v_copy 4487
F2v_ei 42
F2v_flip 1554224
F2v_set 101403603
F2v_to_F2x 37914
F2xX_shift 0
F2x_clear 12353914
F2x_coeff 667920201
F2x_copy 60493684
F2x_div 1570961
F2x_equal 4666245
F2x_equal1 2874021
F2x_flip 1554224
F2x_renormalize 115299316
F2x_set 124765340
F2xqX_div 33173
F3m_coeff 3255865
F3m_copy 0
F3m_set 0
Flm_copy 6433446
Flm_row 8741254
Flv_copy 2554972
Flx_constant 333924
Flx_copy 173209307
Flx_div 1998009
Flx_div_pre 21686330
Flx_equal1 8329949
Flx_lead 978877
Flx_mulu 1105399
FlxqX_div 0
FlxqX_div_pre 165416
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694111
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581210
FpX_renormalize 144210554
Fp_add 180993685
Fp_addmul 11216586
Fp_center 77185790
Fp_center_i 17992062
Fp_div 15034668
Fp_divu 15129183
Fp_double 20800592
Fp_halve 247271
Fp_inv 23440853
Fp_invsafe 1100360
Fp_mul 200692727
Fp_muls 17780
Fp_mulu 67422754
Fp_neg 31480602
Fp_red 82197107
Fp_sqr 63461062
Fp_sub 202352924
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 571434
FqX_Fq_mul 427293
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38565
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444660
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 367703
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 3106362
Fq_to_FpXQ 73652
GENbinbase 961917043
QV_isscalar 54417367
Q_abs 8062623
Q_abs_shallow 120221
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619848
RgC_gtofp 34035916
RgC_gtomp 574
RgM_dimensions 9741638
RgM_fpnorml2 22661
RgM_gtofp 8258553
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179624
RgV_gtofp 56
RgV_is_QV 140733
RgV_is_ZV 32158274
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210273
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406611
RgX_div 7000642
RgX_equal_var 26883012
RgX_fpnorml2 61495
RgX_gtofp 7144837
RgX_is_QX 399933
RgX_is_ZX 22423453
RgX_is_monomial 1331377
RgX_is_rational 68166
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479366
RgX_shift_inplace_init 479366
RgX_to_RgV 140
Rg_col_ei 1450983
Rg_to_Fq 756
ZC_hnfrem 10697582
ZM_ZV_mod 596514
ZM_hnfrem 363790
ZM_lll 7118081
ZV_ZV_mod 8131562
ZV_dvd 23485
ZV_isscalar 23675297
ZV_to_zv 3211408
ZXQ_mul 2161181
ZXQ_sqr 960437
ZX_equal1 12850
ZX_is_monic 7374308
ZX_renormalize 155001266
Z_ispower 98
Z_issquare 458713
abgrp_get_cyc 12230878
abgrp_get_gen 1765022
abgrp_get_no 354946
absfrac 46638733
absfrac_shallow 28237
addmuliu 535790
addmuliu_inplace 59660935
affc_fixlg 249620
affgr 898901
bid_get_MOD 2157253
bid_get_U 3680233
bid_get_arch 41188
bid_get_archp 2397147
bid_get_cyc 5739865
bid_get_fact 2498946
bid_get_fact2 2201577
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804716
bid_get_ideal 72842
bid_get_mod 1521920
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157984
bin_copy 496064796
bit_accuracy 3160138369
bit_accuracy_mul 3175484
bit_prec 143263067
bnf_get_clgp 5374997
bnf_get_cyc 3686148
bnf_get_fu 25856
bnf_get_fu_nocheck 289089
bnf_get_gen 1680310
bnf_get_logfu 2874774
bnf_get_nf 9865172
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367776
bnf_get_tuN 283003
bnf_get_tuU 303581
bnr_get_bid 2046097
bnr_get_bnf 3710953
bnr_get_clgp 2830252
bnr_get_cyc 2522580
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77118
bnr_get_nf 1399091
bnr_get_no 277488
both_odd 124052490
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975461
cgiv 102686441
checkell_i 5593288
closure_arity 372069530
closure_codestr 321641360
closure_get_code 0
closure_get_data 321613198
closure_get_dbg 13635
closure_get_frame 14717284
closure_get_oper 321627179
closure_get_text 37079
closure_is_variadic 45904956
col_ei 5924532
coltrunc_init 740250
const_col 9729689
const_vec 34565198
const_vecsmall 19706246
constant_coeff 1441109
cxcompotor 18209918
cxnorm 91197029
cxtofp 9079057
cxtoreal 337208
cyc_get_expo 2757545
cyclic_perm 99911
dbllog2r 92816146
degpol 5491327674
div_content 58504
divsBIL 8092944410
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997080
ell_get_a2 7106186
ell_get_a3 8814048
ell_get_a4 8536727
ell_get_a6 10370965
ell_get_b2 7371024
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017955
ell_get_c6 13474418
ell_get_disc 16815002
ell_get_j 2126269
ell_get_type 12499016
ell_is_inf 52368140
ellff_get_a4a6 800028
ellff_get_field 2036865
ellinf 1869927
ellnf_get_bnf 119
ellnf_get_nf 2027226
equali1 1174382276
equalim1 139505489
err_get_compo 294
err_get_num 62551
gaddgs 123248642
gal_get_den 27867
gal_get_e 91
gal_get_gen 15435
gal_get_group 80385
gal_get_invvdm 27873
gal_get_mod 23758
gal_get_orders 6678
gal_get_p 6006
gal_get_pol 36315
gal_get_roots 32731
gc_GEN 255457345
gc_INT 4110998482
gc_INT_affii 8489527
gc_all 109637450
gc_leaf 1136955427
gc_slice 2204107
gc_upto 1954513002
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 761924
gdivsg 531590
gen_I 1269711
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1929060
get_F2x_mod 2499314
get_F2x_var 2534059
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82237120
get_Flx_mod 25595633
get_Flx_var 68356081
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 6424452
get_FpX_mod 3394372
get_FpX_var 6957849
gisdouble 2996894
gmax_shallow 13510200
gmaxsg 0
gmin_shallow 877633
gminsg 0
gmulgs 22647879
gmulgu 282059385
gsubgs 1724814
gtodouble 60779131
gtofp 254364569
gtomp 22428
gtos 85855648
gtou 100711
guncloneNULL 48013569
guncloneNULL_deep 1497540
gval 6230
hash_str 2760615
hash_str_len 31630615
icopy_avma 8040039551
idealchineseinit 5427
idealred 138438
identity_ZV 8113
identity_perm 3241740
identity_zv 3266093
inf_get_sign 1452978
inv_content 0
is_bigint 563419115
is_const_t 4898837406
is_extscalar_t 6876
is_intreal_t 9584817
is_matvec_t 659053236
is_noncalc_t 85872126
is_pm1 2205159358
is_qfb_t 0
is_rational_t 5032581
is_real_t 62062464
is_recursive_t 9238431093
is_scalar_t 375659083
is_universal_constant 326410404
is_vec_t 43948820
isint1 17584736
isintm1 5710165
isintzero 2844719897
ismpzero 9584718
isonstack 8273359209
killblock 1952530
leading_coeff 170260985
leafcopy_avma 577149150
lg_increase 315978206
lgcols 351608519
lgpol 2685761147
lincombii 38242977
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 754833
matpascal 3983
matslice 16820126
mkcol 10639758
mkcol2 156878267
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33546
mkcols 40411
mkcomplex 91608143
mkerr 0
mkfrac 41643269
mkfraccopy 4999681
mkfracss 1209563
mkintmod 8092502
mkintmodu 1813
mkmat 4750847
mkmat2 33654058
mkmat22 50282596
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122297
mkmoo 108795
mkoo 1331933
mkpadic 2009
mkpolmod 3103727
mkqfb 27930289
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71190909
mkvec2 185101675
mkvec2copy 114528
mkvec2s 220251
mkvec3 117907098
mkvec3s 524441
mkvec4 10093884
mkvec4s 21
mkvec5 15185732
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131654538
mkvecsmall2 234954783
mkvecsmall3 104184318
mkvecsmall4 18675755
mkvecsmall5 1717495
modpr_get_T 13867073
modpr_get_p 1887627
modpr_get_pr 31236527
mul_content 2657364
mul_denom 10707851
mulsubii 3882379
nbits2extraprec 1458225690
nbits2ndec 228
nbits2nlong 12756269
nbits2prec 186142212
nbrows 157476026
nchar2nlong 127568722
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304914
nf_get_M 21746045
nf_get_Tr 22084
nf_get_degree 71371255
nf_get_diff 4445
nf_get_disc 463480
nf_get_index 3711392
nf_get_invzk 9767556
nf_get_pol 98110160
nf_get_r1 23466547
nf_get_r2 4154
nf_get_ramified_primes 64644
nf_get_roots 1628983
nf_get_roundG 1748223
nf_get_sign 519551
nf_get_varn 1503754
nf_get_zk 4382
nf_get_zkden 5459869
nf_get_zkprimpart 5414117
normalize_frac 17205812
odd 2089699649
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 509558566
pari_malloc 745501640
pari_realloc 1890
pari_realloc_ip 2347660
pari_stack_alloc 1021772702
pari_stack_base 1027558361
pari_stack_delete 5854663
pari_stack_init 6351953
pari_stack_new 926460849
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781991
perm_mul 80897859
perm_sqr 728
pol0_F2x 13249270
pol0_Flx 103490920
pol1_F2x 3957953
pol1_Flx 55058501
pol_0 82996617
pol_1 3755707
pol_x 3857071
pol_xn 2249292
pol_xnall 294
polx_F2x 1078551
polx_Flx 37486169
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130381
pr_get_e 16162170
pr_get_f 26443207
pr_get_gen 12071294
pr_get_p 92750849
pr_get_tau 49768725
pr_is_inert 17224249
pr_norm 1090489
prec2lg 4469233454
prec2nbits 103968428
prec2nbits_mul 581167
prec2ndec 9778
precdbl 475374
qfb_disc 18502568
qfb_disc3 4996090
qfb_is_qfi 62335403
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8002085712
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 763884
row_i 987
rowcopy 204988
rowpermute 14706088
rowslice 79329084
rowslicepermute 185187
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27632172
sqrfrac 4148220
sqrti 6610257
sqrtnr 2810292
sqrtr 80374711
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60156834
truecoef 0
trunc_safe 0
ulogint 1723558
upr_norm 346135
uutoQ 1600198
vec_append 3465124
vec_ei 1713869
vec_lengthen 18960
vec_prepend 314007
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036647
veclast 9372715
vecmodii 0
vecmoduu 49784
vecpermute 20549862
vecreverse 697277
vecreverse_inplace 2605
vecslice 656420225
vecslicepermute 2691146
vecsmall_append 4099604
vecsmall_coincidence 0
vecsmall_concat 1464230
vecsmall_copy 4403870
vecsmall_ei 584726
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043253
vecsmall_max 1163986
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75641
vecsmall_to_col 7838996
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78702646
vecsmalltrunc_append 100793056
vecsmalltrunc_init 189455649
vecsplice 384918
vectrunc_append 15853463
vectrunc_append_batch 9667
vectrunc_init 11768930
zc_to_ZC 7824814
zero_F2m 0
zero_F2m_copy 845046
zero_F2v 3647732
zero_F2x 1350
zero_Flm 2829611
zero_Flm_copy 238230
zero_Flv 59674634
zero_Flx 1427082
zero_zm 0
zero_zv 36735549
zero_zx 0
zerocol 122342353
zeromat 109093
zeromatcopy 14250854
zeropadic 855724
zeropadic_shallow 17024
zeropol 42353951
zeroser 138908
zerovec 28453559
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 2183738
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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