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 30734-f1f26dedcb) Lines: 1422 1535 92.6 %
Date: 2026-03-04 09:24:31 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 8156864
F2m_copy 200426
F2m_flip 1554577
F2m_set 798
F2v_clear 12353922
F2v_coeff 661439483
F2v_copy 4487
F2v_ei 42
F2v_flip 1554577
F2v_set 101430797
F2v_to_F2x 37851
F2xX_shift 0
F2x_clear 12353924
F2x_coeff 668021784
F2x_copy 59751874
F2x_div 1571886
F2x_equal 4669316
F2x_equal1 2873587
F2x_flip 1554577
F2x_renormalize 112527620
F2x_set 123318294
F2xqX_div 33173
F3m_coeff 3255555
F3m_copy 0
F3m_set 0
Flm_copy 6434616
Flm_row 8743716
Flv_copy 2554014
Flx_constant 334145
Flx_copy 173156765
Flx_div 1999835
Flx_div_pre 21696338
Flx_equal1 8183114
Flx_lead 978768
Flx_mulu 1104810
FlxqX_div 0
FlxqX_div_pre 165414
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4664341
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 818704
FpXY_Fq_evaly 20587
FpX_div 5582012
FpX_renormalize 145346655
Fp_add 180932249
Fp_addmul 11246606
Fp_center 77399641
Fp_center_i 18036523
Fp_div 15034832
Fp_divu 15125629
Fp_double 20873237
Fp_halve 247271
Fp_inv 23435809
Fp_invsafe 1097104
Fp_mul 200794491
Fp_muls 17780
Fp_mulu 68548434
Fp_neg 31469466
Fp_red 82927944
Fp_sqr 64043188
Fp_sub 202698144
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 572207
FqX_Fq_mul 427293
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38569
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 445023
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 367934
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 3106742
Fq_to_FpXQ 73652
GENbinbase 915710726
QV_isscalar 54420595
Q_abs 8059614
Q_abs_shallow 120229
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619949
RgC_gtofp 34034934
RgC_gtomp 574
RgM_dimensions 9954497
RgM_fpnorml2 22655
RgM_gtofp 8258079
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22234733
RgV_gtofp 56
RgV_is_QV 142002
RgV_is_ZV 32095291
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210270
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2667901
RgX_copy 102479129
RgX_div 6996190
RgX_equal_var 26879914
RgX_fpnorml2 61607
RgX_gtofp 7151341
RgX_is_QX 399943
RgX_is_ZX 22311289
RgX_is_monomial 1318149
RgX_is_rational 68159
RgX_isscalar 0
RgX_renormalize 347987
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
RgX_to_RgV 140
Rg_col_ei 1451055
Rg_to_Fq 756
ZC_hnfrem 10697500
ZM_ZV_mod 610700
ZM_hnfrem 401435
ZM_lll 7117984
ZV_ZV_mod 8147225
ZV_dvd 23485
ZV_isscalar 23674751
ZV_to_zv 3211716
ZXQ_mul 2166311
ZXQ_sqr 960618
ZX_equal1 10488
ZX_is_monic 7319781
ZX_renormalize 154952397
Z_ispower 98
Z_issquare 509456
abgrp_get_cyc 12231288
abgrp_get_gen 1765019
abgrp_get_no 406737
absfrac 46516025
absfrac_shallow 28237
addmuliu 541599
addmuliu_inplace 59554550
affc_fixlg 249620
affgr 899594
bid_get_MOD 2157271
bid_get_U 3680246
bid_get_arch 41188
bid_get_archp 2397123
bid_get_cyc 5739838
bid_get_fact 2498934
bid_get_fact2 2201589
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804692
bid_get_ideal 72842
bid_get_mod 1521920
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157994
bin_copy 471238657
bit_accuracy 3127905027
bit_accuracy_mul 3175715
bit_prec 143296400
bnf_get_clgp 5375451
bnf_get_cyc 3686602
bnf_get_fu 25859
bnf_get_fu_nocheck 289088
bnf_get_gen 1680310
bnf_get_logfu 2874766
bnf_get_nf 9866307
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367776
bnf_get_tuN 282993
bnf_get_tuU 303579
bnr_get_bid 2046101
bnr_get_bnf 3710953
bnr_get_clgp 2830251
bnr_get_cyc 2522575
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399082
bnr_get_no 277491
both_odd 124042655
cbrtr 0
cbrtr_abs 0
cgetalloc 10115
cgetc 975459
cgiv 105474510
checkell_i 5593192
closure_arity 356316496
closure_codestr 305879199
closure_get_code 28
closure_get_data 305848903
closure_get_dbg 13660
closure_get_frame 14720101
closure_get_oper 305868535
closure_get_text 37150
closure_is_variadic 45911030
col_ei 5925346
coltrunc_init 740257
const_col 9730040
const_vec 34655156
const_vecsmall 18747155
constant_coeff 1438310
cxcompotor 18214261
cxnorm 91201970
cxtofp 9081221
cxtoreal 337206
cyc_get_expo 2757570
cyclic_perm 99911
dbllog2r 92843991
degpol 5487844696
div_content 58510
divsBIL 8109128974
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997023
ell_get_a2 7106198
ell_get_a3 8813991
ell_get_a4 8536739
ell_get_a6 10370977
ell_get_b2 7370955
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017837
ell_get_c6 13474373
ell_get_disc 16815215
ell_get_j 2126269
ell_get_type 12498822
ell_is_inf 49459153
ellff_get_a4a6 799969
ellff_get_field 2036634
ellinf 1208500
ellnf_get_bnf 119
ellnf_get_nf 2027258
equali1 1166184250
equalim1 139505597
err_get_compo 294
err_get_num 62595
gaddgs 123254008
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 245521931
gc_INT 4133484967
gc_INT_affii 11566926
gc_all 102366250
gc_leaf 1129305112
gc_slice 2206020
gc_upto 1944687089
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 761922
gdivsg 531592
gen_I 1268270
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928137
get_F2x_mod 2489571
get_F2x_var 2534363
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82148065
get_Flx_mod 25484127
get_Flx_var 68378213
get_FlxqX_degree 317580
get_FlxqX_mod 8033
get_FlxqX_var 264435
get_FpXQX_degree 3589
get_FpXQX_mod 131148
get_FpXQX_var 51630
get_FpX_degree 6942330
get_FpX_mod 3387430
get_FpX_var 6922541
gisdouble 2995763
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 877884
gminsg 0
gmulgs 23836567
gmulgu 283104681
gsubgs 1730194
gtodouble 60942769
gtofp 254460172
gtomp 22428
gtos 85855750
gtou 100707
guncloneNULL 49815640
guncloneNULL_deep 1510010
gval 6230
hash_str 2741944
hash_str_len 31636864
icopy_avma 8044784762
idealchineseinit 5427
idealred 138818
identity_ZV 8120
identity_perm 3242778
identity_zv 3267129
inf_get_sign 1453135
inv_content 0
is_bigint 571790097
is_const_t 4983231579
is_extscalar_t 6736
is_intreal_t 9585287
is_matvec_t 741235137
is_noncalc_t 88450430
is_pm1 2214936020
is_qfb_t 0
is_rational_t 5015337
is_real_t 61897671
is_recursive_t 9068171118
is_scalar_t 403325749
is_universal_constant 326510735
is_vec_t 43925937
isint1 17586796
isintm1 5711246
isintzero 2839889995
ismpzero 9585193
isonstack 8297628320
killblock 1959664
leading_coeff 171282792
leafcopy_avma 590544691
lg_increase 440095642
lgcols 352690794
lgpol 2603399966
lincombii 38272123
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 754877
matpascal 3983
matslice 16825963
mkcol 10652847
mkcol2 156990764
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33580
mkcols 40411
mkcomplex 91624010
mkerr 0
mkfrac 41639787
mkfraccopy 4999517
mkfracss 1209563
mkintmod 8061415
mkintmodu 1834
mkmat 4780205
mkmat2 33665906
mkmat22 50260001
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122313
mkmoo 108899
mkoo 1331992
mkpadic 2009
mkpolmod 3075552
mkqfb 27929193
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69666805
mkvec2 211513041
mkvec2copy 114534
mkvec2s 220378
mkvec3 119548488
mkvec3s 524441
mkvec4 10146483
mkvec4s 21
mkvec5 15186575
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131355786
mkvecsmall2 235075685
mkvecsmall3 103268542
mkvecsmall4 18689601
mkvecsmall5 1717622
modpr_get_T 13867131
modpr_get_p 1887627
modpr_get_pr 31236634
mul_content 2657627
mul_denom 10709625
mulsubii 3893638
nbits2extraprec 1458730851
nbits2ndec 228
nbits2nlong 12714614
nbits2prec 186165929
nbrows 158271372
nchar2nlong 127790476
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304789
nf_get_M 21745263
nf_get_Tr 23279
nf_get_degree 71377152
nf_get_diff 4445
nf_get_disc 463513
nf_get_index 3712020
nf_get_invzk 9774989
nf_get_pol 98122457
nf_get_r1 23465647
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628822
nf_get_roundG 1748472
nf_get_sign 519601
nf_get_varn 1503777
nf_get_zk 4382
nf_get_zkden 5462042
nf_get_zkprimpart 5416293
normalize_frac 17205912
odd 2120116586
pari_calloc 47609
pari_err_BUG 21
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 485600804
pari_malloc 721664800
pari_realloc 1873
pari_realloc_ip 2352018
pari_stack_alloc 1006062444
pari_stack_base 1011928809
pari_stack_delete 5898637
pari_stack_init 6359257
pari_stack_new 910748180
pari_stack_pushp 5800
perm_conj 418299
perm_inv 3747186
perm_mul 80956012
perm_sqr 728
pol0_F2x 13233559
pol0_Flx 103154675
pol1_F2x 3949281
pol1_Flx 54888654
pol_0 25875562
pol_1 3750273
pol_x 3857632
pol_xn 2249706
pol_xnall 294
polx_F2x 1079037
polx_Flx 37500647
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130075
pr_get_e 16167286
pr_get_f 26444110
pr_get_gen 12072649
pr_get_p 92760681
pr_get_tau 49773281
pr_is_inert 17224254
pr_norm 1090516
prec2lg 4472243164
prec2nbits 103976950
prec2nbits_mul 581081
prec2ndec 9778
precdbl 475640
qfb_disc 18502573
qfb_disc3 4995506
qfb_is_qfi 64499463
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8017963174
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 763895
row_i 987
rowcopy 204988
rowpermute 14757830
rowslice 79469797
rowslicepermute 233712
rowsplice 273
ser_isexactzero 10120354
shallowcopy 27896473
sqrfrac 4148113
sqrti 6611249
sqrtnr 2810289
sqrtr 80384749
sstoQ 1097313
sturm 385
submulii 31985153
submuliu 7700
submuliu_inplace 60062329
truecoef 0
trunc_safe 0
ulogint 1973833
upr_norm 346136
uutoQ 1602144
vec_append 3468994
vec_ei 1714388
vec_lengthen 18960
vec_prepend 313921
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039439
veclast 9372636
vecmodii 0
vecmoduu 49784
vecpermute 21097068
vecreverse 697305
vecreverse_inplace 2605
vecslice 657428106
vecslicepermute 2855443
vecsmall_append 4114725
vecsmall_coincidence 0
vecsmall_concat 1464663
vecsmall_copy 5369036
vecsmall_ei 584746
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043238
vecsmall_max 1164029
vecsmall_min 2352
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75753
vecsmall_to_col 7922157
vecsmall_to_vec 577021
vecsmall_to_vec_inplace 3304
vecsmallpermute 78759930
vecsmalltrunc_append 100914563
vecsmalltrunc_init 241470505
vecsplice 385011
vectrunc_append 15857159
vectrunc_append_batch 9667
vectrunc_init 11768382
zc_to_ZC 7907612
zero_F2m 0
zero_F2m_copy 845071
zero_F2v 3647814
zero_F2x 1181
zero_Flm 2830960
zero_Flm_copy 238309
zero_Flv 59737352
zero_Flx 1427194
zero_zm 0
zero_zv 37304191
zero_zx 0
zerocol 125145427
zeromat 108976
zeromatcopy 14377975
zeropadic 856683
zeropadic_shallow 17087
zeropol 12864307
zeroser 138992
zerovec 29344374
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 2182747
zv_to_ZV 568222
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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