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: 2026-03-13 09:24:04 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 8156027
F2m_copy 200430
F2m_flip 1554144
F2m_set 798
F2v_clear 12353280
F2v_coeff 661435371
F2v_copy 4487
F2v_ei 42
F2v_flip 1554144
F2v_set 101429956
F2v_to_F2x 37833
F2xX_shift 0
F2x_clear 12353290
F2x_coeff 668036563
F2x_copy 59751221
F2x_div 1570371
F2x_equal 4665021
F2x_equal1 2873746
F2x_flip 1554144
F2x_renormalize 112600214
F2x_set 123341537
F2xqX_div 33173
F3m_coeff 3255609
F3m_copy 0
F3m_set 0
Flm_copy 6434402
Flm_row 8742947
Flv_copy 2555052
Flx_constant 334086
Flx_copy 173133552
Flx_div 1999824
Flx_div_pre 21692805
Flx_equal1 8195639
Flx_lead 978800
Flx_mulu 1105489
FlxqX_div 0
FlxqX_div_pre 165407
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4692955
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582043
FpX_renormalize 145678756
Fp_add 180943622
Fp_addmul 11214155
Fp_center 77390499
Fp_center_i 18040985
Fp_div 15032637
Fp_divu 15127141
Fp_double 20790407
Fp_halve 247271
Fp_inv 23436240
Fp_invsafe 1097246
Fp_mul 200773207
Fp_muls 17780
Fp_mulu 67039573
Fp_neg 31478187
Fp_red 82931035
Fp_sqr 63642935
Fp_sub 202794907
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 572201
FqX_Fq_mul 427289
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38567
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 445015
FqX_factor 140960
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 367935
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 3106467
Fq_to_FpXQ 73652
GENbinbase 915836889
QV_isscalar 54420113
Q_abs 8059624
Q_abs_shallow 120232
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619950
RgC_gtofp 34035220
RgC_gtomp 574
RgM_dimensions 9954195
RgM_fpnorml2 22655
RgM_gtofp 8258110
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22234265
RgV_gtofp 56
RgV_is_QV 141999
RgV_is_ZV 32095277
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210270
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2667901
RgX_copy 102480439
RgX_div 6996400
RgX_equal_var 26880193
RgX_fpnorml2 61608
RgX_gtofp 7151501
RgX_is_QX 399947
RgX_is_ZX 22311218
RgX_is_monomial 1318270
RgX_is_rational 68158
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479435
RgX_shift_inplace_init 479435
RgX_to_RgV 140
Rg_col_ei 1451037
Rg_to_Fq 756
ZC_hnfrem 10697443
ZM_ZV_mod 610699
ZM_hnfrem 401431
ZM_lll 7117925
ZV_ZV_mod 8147114
ZV_dvd 23485
ZV_isscalar 23675384
ZV_to_zv 3211712
ZXQ_mul 2166167
ZXQ_sqr 960514
ZX_equal1 10488
ZX_is_monic 7319837
ZX_renormalize 155017492
Z_ispower 98
Z_issquare 509452
abgrp_get_cyc 12231290
abgrp_get_gen 1765033
abgrp_get_no 406738
absfrac 46515967
absfrac_shallow 28237
addmuliu 541617
addmuliu_inplace 59566567
affc_fixlg 249623
affgr 899594
bid_get_MOD 2157261
bid_get_U 3680238
bid_get_arch 41188
bid_get_archp 2397139
bid_get_cyc 5739856
bid_get_fact 2498954
bid_get_fact2 2201581
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804707
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157975
bin_copy 471303952
bit_accuracy 3128569832
bit_accuracy_mul 3175715
bit_prec 143298061
bnf_get_clgp 5375479
bnf_get_cyc 3686614
bnf_get_fu 25859
bnf_get_fu_nocheck 289092
bnf_get_gen 1680321
bnf_get_logfu 2874767
bnf_get_nf 9866332
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367776
bnf_get_tuN 283000
bnf_get_tuU 303587
bnr_get_bid 2046094
bnr_get_bnf 3710952
bnr_get_clgp 2830243
bnr_get_cyc 2522563
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399062
bnr_get_no 277491
both_odd 124114711
cbrtr 0
cbrtr_abs 0
cgetalloc 10115
cgetc 975459
cgiv 105473553
checkell_i 5593339
closure_arity 356267773
closure_codestr 305851385
closure_get_code 28
closure_get_data 305800740
closure_get_dbg 13653
closure_get_frame 14720095
closure_get_oper 305831751
closure_get_text 37136
closure_is_variadic 45910567
col_ei 5925308
coltrunc_init 740257
const_col 9730066
const_vec 34651939
const_vecsmall 18747628
constant_coeff 1441247
cxcompotor 18214542
cxnorm 91204865
cxtofp 9081325
cxtoreal 337206
cyc_get_expo 2757548
cyclic_perm 99911
dbllog2r 92841277
degpol 5481701473
div_content 58512
divsBIL 8107158010
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997091
ell_get_a2 7106200
ell_get_a3 8814059
ell_get_a4 8536741
ell_get_a6 10370979
ell_get_b2 7371021
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11018202
ell_get_c6 13474589
ell_get_disc 16815534
ell_get_j 2126269
ell_get_type 12499203
ell_is_inf 49438942
ellff_get_a4a6 800038
ellff_get_field 2036917
ellinf 1208492
ellnf_get_bnf 119
ellnf_get_nf 2027252
equali1 1166212220
equalim1 139505560
err_get_compo 294
err_get_num 62582
gaddgs 123253958
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80416
gal_get_invvdm 27874
gal_get_mod 23870
gal_get_orders 6706
gal_get_p 6118
gal_get_pol 36428
gal_get_roots 32844
gc_GEN 245547051
gc_INT 4133147730
gc_INT_affii 11567615
gc_all 102397788
gc_leaf 1126949609
gc_slice 2206039
gc_upto 1944698066
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 761928
gdivsg 531592
gen_I 1268280
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928130
get_F2x_mod 2489644
get_F2x_var 2534390
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 81428177
get_Flx_mod 25496704
get_Flx_var 68372876
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 6968796
get_FpX_mod 3387834
get_FpX_var 6954652
gisdouble 2996124
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 877887
gminsg 0
gmulgs 23833813
gmulgu 283104681
gsubgs 1730165
gtodouble 60943369
gtofp 254463569
gtomp 22428
gtos 85855738
gtou 100686
guncloneNULL 49828609
guncloneNULL_deep 1510123
gval 6230
hash_str 2741930
hash_str_len 31636900
icopy_avma 8045130409
idealchineseinit 5427
idealred 138809
identity_ZV 8120
identity_perm 3242731
identity_zv 3267082
inf_get_sign 1453132
inv_content 0
is_bigint 571779005
is_const_t 4981999639
is_extscalar_t 6876
is_intreal_t 9585327
is_matvec_t 741150857
is_noncalc_t 88450707
is_pm1 2214122757
is_qfb_t 0
is_rational_t 5015370
is_real_t 61897670
is_recursive_t 9070781698
is_scalar_t 403349461
is_universal_constant 326563504
is_vec_t 43906136
isint1 17586863
isintm1 5711335
isintzero 2839341671
ismpzero 9585228
isonstack 8294519693
killblock 1959535
leading_coeff 171564116
leafcopy_avma 590450519
lg_increase 442578330
lgcols 352681041
lgpol 2600025220
lincombii 38264585
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 754940
matpascal 3983
matslice 16825130
mkcol 10652841
mkcol2 156994131
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33587
mkcols 40411
mkcomplex 91625309
mkerr 0
mkfrac 41639694
mkfraccopy 4999669
mkfracss 1209563
mkintmod 8061364
mkintmodu 1834
mkmat 4780020
mkmat2 33666133
mkmat22 50260692
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122304
mkmoo 108895
mkoo 1331997
mkpadic 2009
mkpolmod 3075556
mkqfb 27928792
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69634122
mkvec2 212083005
mkvec2copy 114530
mkvec2s 220376
mkvec3 117400280
mkvec3s 524441
mkvec4 10146727
mkvec4s 21
mkvec5 15186580
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131360477
mkvecsmall2 235084537
mkvecsmall3 103263304
mkvecsmall4 18683576
mkvecsmall5 1717608
modpr_get_T 13867097
modpr_get_p 1887627
modpr_get_pr 31236619
mul_content 2657476
mul_denom 10709519
mulsubii 3893912
nbits2extraprec 1458189267
nbits2ndec 228
nbits2nlong 12715479
nbits2prec 186164763
nbrows 158270764
nchar2nlong 127793378
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26299
nf_get_G 304808
nf_get_M 21745897
nf_get_Tr 23280
nf_get_degree 71377064
nf_get_diff 4445
nf_get_disc 463515
nf_get_index 3712040
nf_get_invzk 9774838
nf_get_pol 98122025
nf_get_r1 23466315
nf_get_r2 4154
nf_get_ramified_primes 64644
nf_get_roots 1628835
nf_get_roundG 1748486
nf_get_sign 519598
nf_get_varn 1503780
nf_get_zk 4382
nf_get_zkden 5462058
nf_get_zkprimpart 5416247
normalize_frac 17205746
odd 2120641349
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 485667718
pari_malloc 721731443
pari_realloc 1873
pari_realloc_ip 2351555
pari_stack_alloc 1005968270
pari_stack_base 1011854678
pari_stack_delete 5898221
pari_stack_init 6358986
pari_stack_new 910682707
pari_stack_pushp 5800
perm_conj 418299
perm_inv 3747206
perm_mul 80951010
perm_sqr 728
pol0_F2x 13228645
pol0_Flx 103157566
pol1_F2x 3949557
pol1_Flx 54900574
pol_0 25907667
pol_1 3750941
pol_x 3857800
pol_xn 2249899
pol_xnall 294
polx_F2x 1078467
polx_Flx 37498348
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130082
pr_get_e 16167285
pr_get_f 26444411
pr_get_gen 12072590
pr_get_p 92761217
pr_get_tau 49773574
pr_is_inert 17224305
pr_norm 1090545
prec2lg 4471640745
prec2nbits 103967043
prec2nbits_mul 581080
prec2ndec 9778
precdbl 475652
qfb_disc 18502541
qfb_disc3 4995321
qfb_is_qfi 64472269
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8016270694
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 763904
row_i 987
rowcopy 204988
rowpermute 14757589
rowslice 79459106
rowslicepermute 233768
rowsplice 273
ser_isexactzero 10120354
shallowcopy 27896274
sqrfrac 4148092
sqrti 6611313
sqrtnr 2810368
sqrtr 80383909
sstoQ 1097313
sturm 385
submulii 31985153
submuliu 7700
submuliu_inplace 60081197
truecoef 0
trunc_safe 0
ulogint 1988122
upr_norm 346135
uutoQ 1602144
vec_append 3468984
vec_ei 1714405
vec_lengthen 18960
vec_prepend 313924
vec_setconst 0
vec_shorten 11556
vec_to_vecsmall 4039439
veclast 9372785
vecmodii 0
vecmoduu 49784
vecpermute 21096928
vecreverse 697305
vecreverse_inplace 2605
vecslice 657386942
vecslicepermute 2855609
vecsmall_append 4114704
vecsmall_coincidence 0
vecsmall_concat 1464555
vecsmall_copy 5369141
vecsmall_ei 584738
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1164189
vecsmall_min 2352
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75754
vecsmall_to_col 7922312
vecsmall_to_vec 577021
vecsmall_to_vec_inplace 3304
vecsmallpermute 78754709
vecsmalltrunc_append 100797873
vecsmalltrunc_init 241902599
vecsplice 385013
vectrunc_append 15858730
vectrunc_append_batch 9667
vectrunc_init 11768427
zc_to_ZC 7907766
zero_F2m 0
zero_F2m_copy 845061
zero_F2v 3647765
zero_F2x 1181
zero_Flm 2830765
zero_Flm_copy 238314
zero_Flv 59737322
zero_Flx 1427075
zero_zm 0
zero_zv 37302982
zero_zx 0
zerocol 125146718
zeromat 108979
zeromatcopy 14378024
zeropadic 857627
zeropadic_shallow 17149
zeropol 12864870
zeroser 138992
zerovec 29344800
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 2183785
zv_to_ZV 568222
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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