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 30719-2b7f142d49) Lines: 1422 1535 92.6 %
Date: 2026-03-01 09:23:56 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
F2m_coeff 8156763
F2m_copy 200442
F2m_flip 1554224
F2m_set 798
F2v_clear 12354030
F2v_coeff 661439637
F2v_copy 4487
F2v_ei 42
F2v_flip 1554224
F2v_set 101430088
F2v_to_F2x 37845
F2xX_shift 0
F2x_clear 12354035
F2x_coeff 668199927
F2x_copy 59755053
F2x_div 1570084
F2x_equal 4662457
F2x_equal1 2873933
F2x_flip 1554224
F2x_renormalize 112622669
F2x_set 123423085
F2xqX_div 33173
F3m_coeff 3255921
F3m_copy 0
F3m_set 0
Flm_copy 6433654
Flm_row 8742565
Flv_copy 2555132
Flx_constant 333986
Flx_copy 173124212
Flx_div 1997994
Flx_div_pre 21692118
Flx_equal1 8195622
Flx_lead 978794
Flx_mulu 1105476
FlxqX_div 0
FlxqX_div_pre 165410
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694385
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849903
FpXY_Fq_evaly 20587
FpX_div 5581223
FpX_renormalize 145827393
Fp_add 181349428
Fp_addmul 11288456
Fp_center 77396838
Fp_center_i 18051013
Fp_div 15036823
Fp_divu 15131509
Fp_double 21026178
Fp_halve 247271
Fp_inv 23436920
Fp_invsafe 1098023
Fp_mul 200885000
Fp_muls 17780
Fp_mulu 70690355
Fp_neg 31485270
Fp_red 82930690
Fp_sqr 64369993
Fp_sub 203282203
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 571659
FqX_Fq_mul 427299
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 444769
FqX_factor 140959
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 367710
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 3106636
Fq_to_FpXQ 73652
GENbinbase 917354382
QV_isscalar 54417250
Q_abs 8062818
Q_abs_shallow 120222
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619850
RgC_gtofp 34030415
RgC_gtomp 574
RgM_dimensions 9954229
RgM_fpnorml2 22662
RgM_gtofp 8257719
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22231725
RgV_gtofp 56
RgV_is_QV 140734
RgV_is_ZV 32095116
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210272
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2667901
RgX_copy 103400762
RgX_div 6998010
RgX_equal_var 26882971
RgX_fpnorml2 61601
RgX_gtofp 7145257
RgX_is_QX 399932
RgX_is_ZX 22423355
RgX_is_monomial 1331451
RgX_is_rational 68165
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479368
RgX_shift_inplace_init 479368
RgX_to_RgV 140
Rg_col_ei 1451011
Rg_to_Fq 756
ZC_hnfrem 10697557
ZM_ZV_mod 610645
ZM_hnfrem 401482
ZM_lll 7117655
ZV_ZV_mod 8147109
ZV_dvd 23485
ZV_isscalar 23674626
ZV_to_zv 3211716
ZXQ_mul 2161248
ZXQ_sqr 960441
ZX_equal1 10488
ZX_is_monic 7374281
ZX_renormalize 155021642
Z_ispower 98
Z_issquare 509455
abgrp_get_cyc 12230852
abgrp_get_gen 1765021
abgrp_get_no 406734
absfrac 46540147
absfrac_shallow 28237
addmuliu 541779
addmuliu_inplace 59714578
affc_fixlg 249622
affgr 899594
bid_get_MOD 2157245
bid_get_U 3680227
bid_get_arch 41188
bid_get_archp 2397140
bid_get_cyc 5739844
bid_get_fact 2498943
bid_get_fact2 2201568
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804700
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157987
bin_copy 472060676
bit_accuracy 3128959039
bit_accuracy_mul 3175730
bit_prec 143248719
bnf_get_clgp 5375002
bnf_get_cyc 3686150
bnf_get_fu 25859
bnf_get_fu_nocheck 289097
bnf_get_gen 1680309
bnf_get_logfu 2874775
bnf_get_nf 9865162
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367773
bnf_get_tuN 283004
bnf_get_tuU 303585
bnr_get_bid 2046095
bnr_get_bnf 3710947
bnr_get_clgp 2830257
bnr_get_cyc 2522575
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399091
bnr_get_no 277463
both_odd 124139526
cbrtr 0
cbrtr_abs 0
cgetalloc 10115
cgetc 975460
cgiv 105478586
checkell_i 5593346
closure_arity 356190193
closure_codestr 305803078
closure_get_code 28
closure_get_data 305733568
closure_get_dbg 13646
closure_get_frame 14717600
closure_get_oper 305775317
closure_get_text 37122
closure_is_variadic 45907292
col_ei 5924667
coltrunc_init 740257
const_col 9729719
const_vec 34644553
const_vecsmall 18745722
constant_coeff 1441439
cxcompotor 18209664
cxnorm 91197456
cxtofp 9078744
cxtoreal 337207
cyc_get_expo 2757545
cyclic_perm 99911
dbllog2r 92821046
degpol 5507546198
div_content 58505
divsBIL 8108729835
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997124
ell_get_a2 7106218
ell_get_a3 8814092
ell_get_a4 8536759
ell_get_a6 10370997
ell_get_b2 7371036
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11018963
ell_get_c6 13474952
ell_get_disc 16815760
ell_get_j 2126269
ell_get_type 12499129
ell_is_inf 49459801
ellff_get_a4a6 800069
ellff_get_field 2036984
ellinf 1208336
ellnf_get_bnf 119
ellnf_get_nf 2027253
equali1 1167000268
equalim1 139504588
err_get_compo 294
err_get_num 62567
gaddgs 123248576
gal_get_den 27867
gal_get_e 91
gal_get_gen 15435
gal_get_group 80388
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 233790452
gc_INT 4135683451
gc_INT_affii 11570852
gc_all 102393280
gc_leaf 1133737903
gc_slice 2204173
gc_upto 1959462601
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 761923
gdivsg 531591
gen_I 1268186
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1929315
get_F2x_mod 2489834
get_F2x_var 2534668
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 83149449
get_Flx_mod 25491790
get_Flx_var 68356453
get_FlxqX_degree 317580
get_FlxqX_mod 8033
get_FlxqX_var 264435
get_FpXQX_degree 3589
get_FpXQX_mod 146583
get_FpXQX_var 51630
get_FpX_degree 6969227
get_FpX_mod 3392071
get_FpX_var 6958274
gisdouble 2996012
gmax_shallow 13510199
gmaxsg 0
gmin_shallow 877813
gminsg 0
gmulgs 23876224
gmulgu 283104681
gsubgs 1724695
gtodouble 60901043
gtofp 254400757
gtomp 22428
gtos 85855699
gtou 100672
guncloneNULL 49822332
guncloneNULL_deep 1507695
gval 6230
hash_str 2741930
hash_str_len 31635483
icopy_avma 8048168053
idealchineseinit 5427
idealred 138436
identity_ZV 8113
identity_perm 3242391
identity_zv 3266742
inf_get_sign 1453007
inv_content 0
is_bigint 571778828
is_const_t 4900405074
is_extscalar_t 6876
is_intreal_t 9584690
is_matvec_t 659247462
is_noncalc_t 85780767
is_pm1 2216826582
is_qfb_t 0
is_rational_t 5032603
is_real_t 62059906
is_recursive_t 9190595359
is_scalar_t 375719157
is_universal_constant 326509147
is_vec_t 43954358
isint1 17584984
isintm1 5709562
isintzero 2845247475
ismpzero 9584592
isonstack 8318841316
killblock 1957583
leading_coeff 171835634
leafcopy_avma 577781663
lg_increase 452479465
lgcols 352675163
lgpol 2684814264
lincombii 38254063
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 754850
matpascal 3983
matslice 16825581
mkcol 10652493
mkcol2 156993726
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33556
mkcols 40411
mkcomplex 91602797
mkerr 0
mkfrac 41643295
mkfraccopy 4999926
mkfracss 1209563
mkintmod 8070875
mkintmodu 1834
mkmat 4779647
mkmat2 33666356
mkmat22 50257236
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122280
mkmoo 108806
mkoo 1331949
mkpadic 2009
mkpolmod 3103718
mkqfb 27929994
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69646599
mkvec2 214011225
mkvec2copy 114528
mkvec2s 220245
mkvec3 122606067
mkvec3s 524441
mkvec4 10146843
mkvec4s 21
mkvec5 15186053
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131360785
mkvecsmall2 235080082
mkvecsmall3 103254891
mkvecsmall4 18688493
mkvecsmall5 1717561
modpr_get_T 13867185
modpr_get_p 1887627
modpr_get_pr 31236693
mul_content 2657307
mul_denom 10707840
mulsubii 3887292
nbits2extraprec 1458227349
nbits2ndec 228
nbits2nlong 12723717
nbits2prec 186126317
nbrows 158244438
nchar2nlong 127761276
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304927
nf_get_M 21745395
nf_get_Tr 22082
nf_get_degree 71371289
nf_get_diff 4445
nf_get_disc 463482
nf_get_index 3711408
nf_get_invzk 9767622
nf_get_pol 98110680
nf_get_r1 23465901
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1629009
nf_get_roundG 1748238
nf_get_sign 519552
nf_get_varn 1503757
nf_get_zk 4382
nf_get_zkden 5459883
nf_get_zkprimpart 5414148
normalize_frac 17206801
odd 2121561227
pari_calloc 47609
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
pari_err_DIM 718
pari_err_DOMAIN 2869
pari_err_FILE 0
pari_err_FILEDESC 36
pari_err_FLAG 98
pari_err_IMPL 539
pari_err_INV 20025
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 486421491
pari_malloc 722488098
pari_realloc 1873
pari_realloc_ip 2349989
pari_stack_alloc 1005970999
pari_stack_base 1011832576
pari_stack_delete 5887081
pari_stack_init 6354028
pari_stack_new 910709949
pari_stack_pushp 5800
perm_conj 418299
perm_inv 3746804
perm_mul 80947150
perm_sqr 728
pol0_F2x 13240593
pol0_Flx 103153143
pol1_F2x 3951035
pol1_Flx 54891432
pol_0 82783060
pol_1 3753601
pol_x 3857590
pol_xn 2249561
pol_xnall 294
polx_F2x 1078443
polx_Flx 37489360
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130360
pr_get_e 16161817
pr_get_f 26443198
pr_get_gen 12071406
pr_get_p 92750316
pr_get_tau 49768147
pr_is_inert 17224060
pr_norm 1090567
prec2lg 4474769613
prec2nbits 103972741
prec2nbits_mul 581082
prec2ndec 9778
precdbl 475394
qfb_disc 18502594
qfb_disc3 4995890
qfb_is_qfi 64501135
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8017572705
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 763899
row_i 987
rowcopy 204988
rowpermute 14756344
rowslice 79461295
rowslicepermute 234227
rowsplice 273
ser_isexactzero 10120368
shallowcopy 27895166
sqrfrac 4148334
sqrti 6610316
sqrtnr 2810140
sqrtr 80374718
sstoQ 1097313
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60203711
truecoef 0
trunc_safe 0
ulogint 1993016
upr_norm 346135
uutoQ 1602144
vec_append 3464672
vec_ei 1713862
vec_lengthen 18960
vec_prepend 313925
vec_setconst 0
vec_shorten 11556
vec_to_vecsmall 4036964
veclast 9372799
vecmodii 0
vecmoduu 49784
vecpermute 21097342
vecreverse 697305
vecreverse_inplace 2605
vecslice 657484732
vecslicepermute 2856812
vecsmall_append 4114690
vecsmall_coincidence 0
vecsmall_concat 1464210
vecsmall_copy 5368909
vecsmall_ei 584736
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1164188
vecsmall_min 2352
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75641
vecsmall_to_col 7921226
vecsmall_to_vec 576881
vecsmall_to_vec_inplace 3304
vecsmallpermute 78751870
vecsmalltrunc_append 100886112
vecsmalltrunc_init 246291975
vecsplice 384942
vectrunc_append 15857533
vectrunc_append_batch 9667
vectrunc_init 11766582
zc_to_ZC 7907044
zero_F2m 0
zero_F2m_copy 845062
zero_F2v 3647788
zero_F2x 1350
zero_Flm 2830570
zero_Flm_copy 238234
zero_Flv 59744824
zero_Flx 1426865
zero_zm 0
zero_zv 37307408
zero_zx 0
zerocol 125132911
zeromat 109132
zeromatcopy 14377737
zeropadic 857759
zeropadic_shallow 17150
zeropol 42353450
zeroser 138992
zerovec 29344106
zerovec_block 29654
zm_copy 0
zm_row 0
zm_to_zxV 0
zm_transpose 266
znstar_get_N 38658713
znstar_get_U 176107
znstar_get_Ui 46788
znstar_get_conreycyc 7982108
znstar_get_conreygen 3290526
znstar_get_cyc 262088
znstar_get_faN 7334819
znstar_get_gen 16150
znstar_get_no 14
znstar_get_pe 2869063
zv_copy 2183873
zv_to_ZV 568082
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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