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 30773-2078653b96) Lines: 1421 1535 92.6 %
Date: 2026-04-03 09:26:58 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 8358995
F2m_copy 200669
F2m_flip 1554222
F2m_set 798
F2v_clear 12361998
F2v_coeff 664438954
F2v_copy 4487
F2v_ei 42
F2v_flip 1554222
F2v_set 104115126
F2v_to_F2x 38108
F2xX_shift 0
F2x_clear 12361984
F2x_coeff 671057093
F2x_copy 64574946
F2x_div 1570248
F2x_equal 4186283
F2x_equal1 2873732
F2x_flip 1554222
F2x_renormalize 127892203
F2x_set 130010582
F2xqX_div 33173
F3m_coeff 3255655
F3m_copy 0
F3m_set 0
Flm_copy 6434470
Flm_row 8743075
Flv_copy 2059052
Flx_constant 1091554
Flx_copy 175790940
Flx_div 1999780
Flx_div_pre 21708018
Flx_equal1 8196083
Flx_lead 1068800
Flx_mulu 1105472
FlxqX_div 0
FlxqX_div_pre 165411
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4692435
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582008
FpX_renormalize 147014071
Fp_add 183269332
Fp_addmul 11231716
Fp_center 77292361
Fp_center_i 18008432
Fp_div 15033881
Fp_divu 15128405
Fp_double 20766364
Fp_halve 247271
Fp_inv 23435914
Fp_invsafe 1097247
Fp_mul 203041588
Fp_muls 17780
Fp_mulu 65441074
Fp_neg 32670556
Fp_red 82934530
Fp_sqr 63521955
Fp_sub 200950317
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 572192
FqX_Fq_mul 427290
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 445024
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 367936
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 3106209
Fq_to_FpXQ 73652
GENbinbase 919003937
QV_isscalar 54420091
Q_abs 8061013
Q_abs_shallow 120226
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619946
RgC_gtofp 34033723
RgC_gtomp 574
RgM_dimensions 9955090
RgM_fpnorml2 22655
RgM_gtofp 8257632
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22235486
RgV_gtofp 56
RgV_is_QV 141996
RgV_is_ZV 32095985
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210273
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102486984
RgX_div 6997261
RgX_equal_var 26880497
RgX_fpnorml2 61608
RgX_gtofp 7163980
RgX_is_QX 399944
RgX_is_ZX 22315783
RgX_is_monomial 1320070
RgX_is_rational 68158
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
RgX_to_RgV 140
Rg_col_ei 1451097
Rg_to_Fq 756
ZC_hnfrem 10697516
ZM_ZV_mod 610728
ZM_hnfrem 401385
ZM_lll 7117689
ZV_ZV_mod 8147163
ZV_dvd 23485
ZV_isscalar 23675086
ZV_to_zv 3211716
ZXQ_mul 2166275
ZXQ_sqr 960614
ZX_equal1 10488
ZX_is_monic 7319852
ZX_renormalize 157443485
Z_ispower 98
Z_issquare 509456
abgrp_get_cyc 12231187
abgrp_get_gen 1765019
abgrp_get_no 406734
absfrac 46991360
absfrac_shallow 28237
addmuliu 541635
addmuliu_inplace 59552693
affc_fixlg 249619
affgr 899594
bid_get_MOD 2157250
bid_get_U 3680225
bid_get_arch 41188
bid_get_archp 2397100
bid_get_cyc 5739797
bid_get_fact 2498912
bid_get_fact2 2201571
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804651
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157972
bin_copy 472880965
bit_accuracy 3145113242
bit_accuracy_mul 3175715
bit_prec 143398712
bnf_get_clgp 5375459
bnf_get_cyc 3686609
bnf_get_fu 25859
bnf_get_fu_nocheck 289083
bnf_get_gen 1680313
bnf_get_logfu 2874755
bnf_get_nf 9866307
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367770
bnf_get_tuN 282989
bnf_get_tuU 303573
bnr_get_bid 2046090
bnr_get_bnf 3710948
bnr_get_clgp 2830215
bnr_get_cyc 2522546
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399076
bnr_get_no 277487
both_odd 124042328
cbrtr 0
cbrtr_abs 0
cgetalloc 10136
cgetc 975456
cgiv 105476910
checkell_i 8103983
closure_arity 356280793
closure_codestr 305857285
closure_get_code 28
closure_get_data 305808668
closure_get_dbg 13660
closure_get_frame 14735083
closure_get_oper 305834007
closure_get_text 37150
closure_is_variadic 45931215
col_ei 5925248
coltrunc_init 740257
const_col 9730131
const_vec 34674164
const_vecsmall 18860974
constant_coeff 1441265
cxcompotor 18239829
cxnorm 94099769
cxtofp 9094068
cxtoreal 337203
cyc_get_expo 2757551
cyclic_perm 99932
dbllog2r 94329593
degpol 5514740426
div_content 58511
divsBIL 8240574378
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 17049191
ell_get_a2 11108729
ell_get_a3 12863757
ell_get_a4 10325147
ell_get_a6 10371107
ell_get_b2 7371395
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11018925
ell_get_c6 13474521
ell_get_disc 16816129
ell_get_j 2126269
ell_get_type 14946102
ell_is_inf 50161569
ellff_get_a4a6 551461
ellff_get_field 1790611
ellinf 913908
ellnf_get_bnf 119
ellnf_get_nf 2027229
equali1 1169265997
equalim1 139568024
err_get_compo 294
err_get_num 62596
gaddgs 123270556
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 246752301
gc_INT 4134387388
gc_INT_affii 11568150
gc_all 102550926
gc_leaf 1160745301
gc_slice 2211174
gc_upto 1971404713
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 761926
gdivsg 559711
gen_I 1268863
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928627
get_F2x_mod 3307680
get_F2x_var 2168770
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82175115
get_Flx_mod 25498440
get_Flx_var 68243708
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 6969420
get_FpX_mod 3387867
get_FpX_var 6952162
gisdouble 2996077
gmax_shallow 13510228
gmaxsg 0
gmin_shallow 898172
gminsg 0
gmulgs 23867892
gmulgu 283360013
gsubgs 1731939
gtodouble 66248886
gtofp 257183743
gtomp 22428
gtos 85865498
gtou 100718
guncloneNULL 49826622
guncloneNULL_deep 1506212
gval 6230
hash_str 2757674
hash_str_len 31655946
icopy_avma 8049813980
idealchineseinit 5427
idealred 138809
identity_ZV 8120
identity_perm 3243289
identity_zv 3267652
inf_get_sign 1453285
inv_content 0
is_bigint 574367310
is_const_t 5002520014
is_extscalar_t 6904
is_intreal_t 9702782
is_matvec_t 742656400
is_noncalc_t 88514800
is_pm1 2216080729
is_qfb_t 0
is_rational_t 5017655
is_real_t 61900628
is_recursive_t 9105157847
is_scalar_t 403470992
is_universal_constant 326558832
is_vec_t 43951752
isint1 17987118
isintm1 6086493
isintzero 2848321578
ismpzero 9702679
isonstack 8355346596
killblock 1956473
leading_coeff 169335885
leafcopy_avma 593135156
lg_increase 440580277
lgcols 352678484
lgpol 2623239388
lincombii 38263177
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 755015
matpascal 4683
matslice 16824312
mkcol 10653386
mkcol2 156937482
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33573
mkcols 40411
mkcomplex 92013474
mkerr 0
mkfrac 41927444
mkfraccopy 4999315
mkfracss 1209563
mkintmod 8066721
mkintmodu 1834
mkmat 4780176
mkmat2 33666060
mkmat22 50253114
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122313
mkmoo 108899
mkoo 1332141
mkpadic 2009
mkpolmod 3075556
mkqfb 27928517
mkquad 69118
mkrfrac 698438
mkrfraccopy 14
mkvec 69362626
mkvec2 213780242
mkvec2copy 114531
mkvec2s 220724
mkvec3 119749901
mkvec3s 524441
mkvec4 10150227
mkvec4s 21
mkvec5 15187637
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140284408
mkvecsmall2 256946479
mkvecsmall3 103249632
mkvecsmall4 18653903
mkvecsmall5 1718763
modpr_get_T 13867136
modpr_get_p 1887627
modpr_get_pr 31236601
mul_content 2657519
mul_denom 10709679
mulsubii 3893859
nbits2extraprec 1497871305
nbits2ndec 228
nbits2nlong 12752839
nbits2prec 189009766
nbrows 158271264
nchar2nlong 127921561
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304833
nf_get_M 21745656
nf_get_Tr 23280
nf_get_degree 71376636
nf_get_diff 4445
nf_get_disc 463512
nf_get_index 3712020
nf_get_invzk 9774752
nf_get_pol 98120210
nf_get_r1 23466223
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628877
nf_get_roundG 1748508
nf_get_sign 519599
nf_get_varn 1503759
nf_get_zk 4382
nf_get_zkden 5462242
nf_get_zkprimpart 5416391
normalize_frac 17310207
odd 2123688076
pari_calloc 47770
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
pari_err_DIM 718
pari_err_DOMAIN 2876
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 487243255
pari_malloc 723349290
pari_realloc 1880
pari_realloc_ip 2359320
pari_stack_alloc 1006196365
pari_stack_base 1012025105
pari_stack_delete 5884094
pari_stack_init 6378987
pari_stack_new 910873143
pari_stack_pushp 5821
perm_conj 418299
perm_inv 3747271
perm_mul 80953203
perm_sqr 728
pol0_F2x 17353677
pol0_Flx 111642646
pol1_F2x 4769299
pol1_Flx 55725947
pol_0 27123685
pol_1 3752539
pol_x 3860554
pol_xn 2252851
pol_xnall 294
polx_F2x 1078804
polx_Flx 37492563
polx_zx 0
polxn_Flx 371
powIs 596435
powii 43130045
pr_get_e 16167499
pr_get_f 26444577
pr_get_gen 12072606
pr_get_p 92761678
pr_get_tau 49774100
pr_is_inert 17224439
pr_norm 1090569
prec2lg 4561650069
prec2nbits 106945231
prec2nbits_mul 581094
prec2ndec 9778
precdbl 476362
qfb_disc 18502501
qfb_disc3 4995195
qfb_is_qfi 64526878
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8149180585
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 763883
row_i 987
rowcopy 204988
rowpermute 14758681
rowslice 79455068
rowslicepermute 234613
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27896352
sqrfrac 4151094
sqrti 6612726
sqrtnr 2810681
sqrtr 86931866
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60059669
truecoef 0
trunc_safe 0
ulogint 2086952
upr_norm 346134
uutoQ 1602144
vec_append 3468908
vec_ei 1714716
vec_lengthen 18960
vec_prepend 313922
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039398
veclast 9374232
vecmodii 0
vecmoduu 49784
vecpermute 21110641
vecreverse 697305
vecreverse_inplace 2605
vecslice 657390235
vecslicepermute 2858946
vecsmall_append 4114713
vecsmall_coincidence 0
vecsmall_concat 1464582
vecsmall_copy 7341178
vecsmall_ei 585152
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043244
vecsmall_max 1177339
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75750
vecsmall_to_col 7925269
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78756856
vecsmalltrunc_append 100882711
vecsmalltrunc_init 241227233
vecsplice 384997
vectrunc_append 15855449
vectrunc_append_batch 9667
vectrunc_init 11766300
zc_to_ZC 7910724
zero_F2m 0
zero_F2m_copy 845285
zero_F2v 3656695
zero_F2x 1181
zero_Flm 2830980
zero_Flm_copy 238316
zero_Flv 61991610
zero_Flx 3255639
zero_zm 0
zero_zv 39510893
zero_zx 0
zerocol 125155087
zeromat 108981
zeromatcopy 14377849
zeropadic 857529
zeropadic_shallow 17150
zeropol 12867463
zeroser 138992
zerovec 29348332
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 1687809
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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