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 30604-e5d817ee12) Lines: 1421 1535 92.6 %
Date: 2026-01-10 09:22:24 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 8039291
F2m_copy 200480
F2m_flip 1554490
F2m_set 798
F2v_clear 12354451
F2v_coeff 661324596
F2v_copy 4487
F2v_ei 42
F2v_flip 1554490
F2v_set 101404149
F2v_to_F2x 37941
F2xX_shift 0
F2x_clear 12354464
F2x_coeff 667915968
F2x_copy 60474584
F2x_div 1571548
F2x_equal 4667844
F2x_equal1 2874114
F2x_flip 1554490
F2x_renormalize 115324029
F2x_set 124777744
F2xqX_div 33173
F3m_coeff 3255870
F3m_copy 0
F3m_set 0
Flm_copy 6433438
Flm_row 8740786
Flv_copy 2554997
Flx_constant 334020
Flx_copy 173170698
Flx_div 1997985
Flx_div_pre 21686551
Flx_equal1 8329980
Flx_lead 978832
Flx_mulu 1105460
FlxqX_div 0
FlxqX_div_pre 165414
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694164
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581196
FpX_renormalize 144207835
Fp_add 181077056
Fp_addmul 11272250
Fp_center 77150054
Fp_center_i 18013823
Fp_div 15035209
Fp_divu 15129693
Fp_double 20884919
Fp_halve 247271
Fp_inv 23440900
Fp_invsafe 1100353
Fp_mul 200795703
Fp_muls 17780
Fp_mulu 67542086
Fp_neg 31480251
Fp_red 82191395
Fp_sqr 63493389
Fp_sub 202508910
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 571440
FqX_Fq_mul 427304
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 444667
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 367702
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 3106315
Fq_to_FpXQ 73652
GENbinbase 961905861
QV_isscalar 54416227
Q_abs 8062629
Q_abs_shallow 120229
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619847
RgC_gtofp 34034221
RgC_gtomp 574
RgM_dimensions 9741719
RgM_fpnorml2 22661
RgM_gtofp 8258269
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179167
RgV_gtofp 56
RgV_is_QV 140732
RgV_is_ZV 32158281
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210266
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406504
RgX_div 7000642
RgX_equal_var 26883023
RgX_fpnorml2 61494
RgX_gtofp 7144812
RgX_is_QX 399929
RgX_is_ZX 22422922
RgX_is_monomial 1331389
RgX_is_rational 68164
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479366
RgX_shift_inplace_init 479366
RgX_to_RgV 140
Rg_col_ei 1451032
Rg_to_Fq 756
ZC_hnfrem 10697501
ZM_ZV_mod 596457
ZM_hnfrem 363801
ZM_lll 7117874
ZV_ZV_mod 8131500
ZV_dvd 23485
ZV_isscalar 23674451
ZV_to_zv 3211406
ZXQ_mul 2161250
ZXQ_sqr 960428
ZX_equal1 12850
ZX_is_monic 7374315
ZX_renormalize 154963891
Z_ispower 98
Z_issquare 458711
abgrp_get_cyc 12230768
abgrp_get_gen 1765021
abgrp_get_no 354942
absfrac 46638765
absfrac_shallow 28237
addmuliu 535790
addmuliu_inplace 59651193
affc_fixlg 249620
affgr 898866
bid_get_MOD 2157239
bid_get_U 3680219
bid_get_arch 41187
bid_get_archp 2397094
bid_get_cyc 5739804
bid_get_fact 2498928
bid_get_fact2 2201560
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804653
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157968
bin_copy 496060792
bit_accuracy 3159931888
bit_accuracy_mul 3175472
bit_prec 143259079
bnf_get_clgp 5374992
bnf_get_cyc 3686143
bnf_get_fu 25859
bnf_get_fu_nocheck 289089
bnf_get_gen 1680307
bnf_get_logfu 2874759
bnf_get_nf 9865146
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367775
bnf_get_tuN 282997
bnf_get_tuU 303580
bnr_get_bid 2046086
bnr_get_bnf 3710937
bnr_get_clgp 2830252
bnr_get_cyc 2522471
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399067
bnr_get_no 277483
both_odd 123888955
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975459
cgiv 102682446
checkell_i 5593277
closure_arity 371510945
closure_codestr 321654804
closure_get_code 0
closure_get_data 321616733
closure_get_dbg 13628
closure_get_frame 14158265
closure_get_oper 321638985
closure_get_text 37065
closure_is_variadic 44790118
col_ei 5924492
coltrunc_init 740250
const_col 9729715
const_vec 34477513
const_vecsmall 19705963
constant_coeff 1441127
cxcompotor 18211148
cxnorm 91196157
cxtofp 9079726
cxtoreal 337207
cyc_get_expo 2757565
cyclic_perm 99911
dbllog2r 92814210
degpol 5487525607
div_content 58503
divsBIL 8090892389
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997094
ell_get_a2 7106186
ell_get_a3 8814062
ell_get_a4 8536727
ell_get_a6 10370965
ell_get_b2 7371038
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017714
ell_get_c6 13474069
ell_get_disc 16814749
ell_get_j 2126269
ell_get_type 12498932
ell_is_inf 52355503
ellff_get_a4a6 800040
ellff_get_field 2036877
ellinf 1869950
ellnf_get_bnf 119
ellnf_get_nf 2027231
equali1 1174342860
equalim1 139505122
err_get_compo 294
err_get_num 62536
gaddgs 123248633
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 255486470
gc_INT 4110694828
gc_INT_affii 8487182
gc_all 109638256
gc_leaf 1136224489
gc_slice 2204088
gc_upto 1953548682
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 761930
gdivsg 531592
gen_I 1269701
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1929081
get_F2x_mod 2499234
get_F2x_var 2533998
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82259132
get_Flx_mod 25593822
get_Flx_var 68346121
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 6424398
get_FpX_mod 3394362
get_FpX_var 6957841
gisdouble 2996591
gmax_shallow 13510200
gmaxsg 0
gmin_shallow 877652
gminsg 0
gmulgs 22630338
gmulgu 282059385
gsubgs 1724800
gtodouble 60779362
gtofp 254343658
gtomp 22428
gtos 85855707
gtou 99534
guncloneNULL 47926198
guncloneNULL_deep 1430234
gval 6230
hash_str 2756815
hash_str_len 31545025
icopy_avma 8039959539
idealchineseinit 5427
idealred 138431
identity_ZV 8113
identity_perm 3241707
identity_zv 3266057
inf_get_sign 1452988
inv_content 0
is_bigint 563401940
is_const_t 4898137785
is_extscalar_t 6876
is_intreal_t 9584743
is_matvec_t 659583867
is_noncalc_t 85871742
is_pm1 2205177072
is_qfb_t 0
is_rational_t 5032504
is_real_t 62062455
is_recursive_t 9234712741
is_scalar_t 375657523
is_universal_constant 325924264
is_vec_t 43936942
isint1 17584771
isintm1 5710148
isintzero 2844126162
ismpzero 9584641
isonstack 8271128945
killblock 1917794
leading_coeff 170259031
leafcopy_avma 577031494
lg_increase 319911047
lgcols 351598030
lgpol 2685597583
lincombii 38231093
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 754836
matpascal 3983
matslice 16819363
mkcol 10639638
mkcol2 156890107
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33549
mkcols 40411
mkcomplex 91606698
mkerr 0
mkfrac 41641749
mkfraccopy 4999653
mkfracss 1209563
mkintmod 8092807
mkintmodu 1813
mkmat 4750912
mkmat2 33654518
mkmat22 50284670
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122279
mkmoo 108789
mkoo 1331943
mkpadic 2009
mkpolmod 3103726
mkqfb 27929983
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71106241
mkvec2 185835200
mkvec2copy 114526
mkvec2s 220251
mkvec3 117811556
mkvec3s 524441
mkvec4 10093871
mkvec4s 21
mkvec5 15185689
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131638321
mkvecsmall2 234824653
mkvecsmall3 104170566
mkvecsmall4 18653718
mkvecsmall5 1717508
modpr_get_T 13867160
modpr_get_p 1887627
modpr_get_pr 31236646
mul_content 2657149
mul_denom 10707646
mulsubii 3882086
nbits2extraprec 1457756597
nbits2ndec 228
nbits2nlong 12749996
nbits2prec 186131283
nbrows 157469631
nchar2nlong 127394879
ndec2nbits 8270
ndec2nlong 41549
ndec2prec 33279
nfV_to_scalar_or_alg 26300
nf_get_G 304873
nf_get_M 21745240
nf_get_Tr 22081
nf_get_degree 71369680
nf_get_diff 4445
nf_get_disc 463477
nf_get_index 3711383
nf_get_invzk 9767434
nf_get_pol 98108043
nf_get_r1 23465681
nf_get_r2 4154
nf_get_ramified_primes 64644
nf_get_roots 1628935
nf_get_roundG 1748170
nf_get_sign 519551
nf_get_varn 1503559
nf_get_zk 4382
nf_get_zkden 5459842
nf_get_zkprimpart 5414062
normalize_frac 17205162
odd 2089642329
pari_calloc 47720
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 84
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 509459032
pari_malloc 745360948
pari_realloc 1890
pari_realloc_ip 2255680
pari_stack_alloc 1019719606
pari_stack_base 1025222331
pari_stack_delete 5568154
pari_stack_init 6051963
pari_stack_new 925034227
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781892
perm_mul 80891819
perm_sqr 728
pol0_F2x 13249936
pol0_Flx 103479009
pol1_F2x 3957640
pol1_Flx 55050617
pol_0 82996644
pol_1 3755692
pol_x 3856964
pol_xn 2249269
pol_xnall 294
polx_F2x 1078811
polx_Flx 37482580
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130387
pr_get_e 16161851
pr_get_f 26442967
pr_get_gen 12070956
pr_get_p 92750324
pr_get_tau 49768363
pr_is_inert 17223969
pr_norm 1090500
prec2lg 4467788164
prec2nbits 103961158
prec2nbits_mul 581165
prec2ndec 9778
precdbl 475369
qfb_disc 18502473
qfb_disc3 4995941
qfb_is_qfi 62327552
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8000223709
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 763892
row_i 987
rowcopy 204988
rowpermute 14705675
rowslice 79309264
rowslicepermute 185036
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27631805
sqrfrac 4148286
sqrti 6610310
sqrtnr 2810226
sqrtr 80370922
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60141101
truecoef 0
trunc_safe 0
ulogint 1727416
upr_norm 346135
uutoQ 1600198
vec_append 3465073
vec_ei 1713861
vec_lengthen 18960
vec_prepend 313998
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036631
veclast 9372724
vecmodii 0
vecmoduu 49784
vecpermute 20547873
vecreverse 697277
vecreverse_inplace 2605
vecslice 655828360
vecslicepermute 2690690
vecsmall_append 4099617
vecsmall_coincidence 0
vecsmall_concat 1464157
vecsmall_copy 4403916
vecsmall_ei 584750
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043256
vecsmall_max 1164073
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75638
vecsmall_to_col 7838768
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78696288
vecsmalltrunc_append 100893110
vecsmalltrunc_init 191093786
vecsplice 384910
vectrunc_append 15851249
vectrunc_append_batch 9667
vectrunc_init 11766199
zc_to_ZC 7824586
zero_F2m 0
zero_F2m_copy 845071
zero_F2v 3647772
zero_F2x 1350
zero_Flm 2829572
zero_Flm_copy 238229
zero_Flv 59674117
zero_Flx 1426784
zero_zm 0
zero_zv 36734975
zero_zx 0
zerocol 122336506
zeromat 109093
zeromatcopy 14250346
zeropadic 855694
zeropadic_shallow 17024
zeropol 42353991
zeroser 138908
zerovec 28453627
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 2183753
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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