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 30754-316d984fc8) Lines: 1421 1535 92.6 %
Date: 2026-03-19 09:26:57 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 8356252
F2m_copy 200658
F2m_flip 1553407
F2m_set 798
F2v_clear 12360490
F2v_coeff 664421337
F2v_copy 4487
F2v_ei 42
F2v_flip 1553407
F2v_set 104112807
F2v_to_F2x 37800
F2xX_shift 0
F2x_clear 12360490
F2x_coeff 671034711
F2x_copy 58993375
F2x_div 1557587
F2x_equal 4605381
F2x_equal1 2873816
F2x_flip 1553407
F2x_renormalize 111610141
F2x_set 125800764
F2xqX_div 33173
F3m_coeff 3255608
F3m_copy 0
F3m_set 0
Flm_copy 6434612
Flm_row 8743759
Flv_copy 2555422
Flx_constant 1091527
Flx_copy 173829257
Flx_div 1999822
Flx_div_pre 21712493
Flx_equal1 8195707
Flx_lead 1068819
Flx_mulu 1105291
FlxqX_div 0
FlxqX_div_pre 165411
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4693079
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582056
FpX_renormalize 145863072
Fp_add 181105150
Fp_addmul 11224885
Fp_center 77390545
Fp_center_i 18038634
Fp_div 15034303
Fp_divu 15128831
Fp_double 20818457
Fp_halve 247271
Fp_inv 23436004
Fp_invsafe 1097242
Fp_mul 201026826
Fp_muls 17780
Fp_mulu 68485200
Fp_neg 31478914
Fp_red 82927688
Fp_sqr 64434316
Fp_sub 202852013
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 572209
FqX_Fq_mul 427300
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 445018
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 3106448
Fq_to_FpXQ 73652
GENbinbase 919494500
QV_isscalar 54420414
Q_abs 8061043
Q_abs_shallow 120235
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619942
RgC_gtofp 34032315
RgC_gtomp 574
RgM_dimensions 9953781
RgM_fpnorml2 22655
RgM_gtofp 8257582
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22235176
RgV_gtofp 56
RgV_is_QV 142000
RgV_is_ZV 32095988
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210266
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102485630
RgX_div 6997065
RgX_equal_var 26880186
RgX_fpnorml2 61607
RgX_gtofp 7163937
RgX_is_QX 399944
RgX_is_ZX 22315730
RgX_is_monomial 1319965
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 1451071
Rg_to_Fq 756
ZC_hnfrem 10697625
ZM_ZV_mod 610710
ZM_hnfrem 401416
ZM_lll 7117684
ZV_ZV_mod 8147244
ZV_dvd 23485
ZV_isscalar 23675192
ZV_to_zv 3211716
ZXQ_mul 2166298
ZXQ_sqr 960615
ZX_equal1 10488
ZX_is_monic 7319895
ZX_renormalize 155225097
Z_ispower 98
Z_issquare 509450
abgrp_get_cyc 12231167
abgrp_get_gen 1765019
abgrp_get_no 406731
absfrac 46991367
absfrac_shallow 28237
addmuliu 541626
addmuliu_inplace 59624898
affc_fixlg 249623
affgr 899594
bid_get_MOD 2157263
bid_get_U 3680239
bid_get_arch 41188
bid_get_archp 2397124
bid_get_cyc 5739842
bid_get_fact 2498963
bid_get_fact2 2201575
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804688
bid_get_ideal 72842
bid_get_mod 1521919
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157988
bin_copy 473126969
bit_accuracy 3128005740
bit_accuracy_mul 3175715
bit_prec 143390614
bnf_get_clgp 5375453
bnf_get_cyc 3686600
bnf_get_fu 25859
bnf_get_fu_nocheck 289092
bnf_get_gen 1680308
bnf_get_logfu 2874765
bnf_get_nf 9866333
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367773
bnf_get_tuN 283005
bnf_get_tuU 303586
bnr_get_bid 2046101
bnr_get_bnf 3710957
bnr_get_clgp 2830268
bnr_get_cyc 2522589
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399085
bnr_get_no 277491
both_odd 124022558
cbrtr 0
cbrtr_abs 0
cgetalloc 10136
cgetc 975457
cgiv 105481638
checkell_i 5593688
closure_arity 356554173
closure_codestr 306119936
closure_get_code 28
closure_get_data 306079070
closure_get_dbg 13660
closure_get_frame 14734922
closure_get_oper 306109928
closure_get_text 37150
closure_is_variadic 45930757
col_ei 5925369
coltrunc_init 740257
const_col 9730077
const_vec 34679403
const_vecsmall 18861162
constant_coeff 1441254
cxcompotor 18238455
cxnorm 94062282
cxtofp 9093292
cxtoreal 337205
cyc_get_expo 2757574
cyclic_perm 99911
dbllog2r 94329422
degpol 5514721595
div_content 58511
divsBIL 8233185315
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997575
ell_get_a2 7106327
ell_get_a3 8814543
ell_get_a4 8536868
ell_get_a6 10371106
ell_get_b2 7371378
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11019049
ell_get_c6 13474771
ell_get_disc 16816756
ell_get_j 2126269
ell_get_type 12499789
ell_is_inf 49414984
ellff_get_a4a6 800523
ellff_get_field 2038573
ellinf 1208460
ellnf_get_bnf 119
ellnf_get_nf 2027254
equali1 1169413174
equalim1 139567903
err_get_compo 294
err_get_num 62596
gaddgs 123270554
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80414
gal_get_invvdm 27873
gal_get_mod 23870
gal_get_orders 6706
gal_get_p 6118
gal_get_pol 36427
gal_get_roots 32843
gc_GEN 246986191
gc_INT 4136218330
gc_INT_affii 11587477
gc_all 102550593
gc_leaf 1142640992
gc_slice 2211076
gc_upto 1956799307
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 761916
gdivsg 559710
gen_I 1268889
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928556
get_F2x_mod 2490764
get_F2x_var 2536855
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82146231
get_Flx_mod 25503411
get_Flx_var 68388351
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 6969391
get_FpX_mod 3387876
get_FpX_var 6954311
gisdouble 2995460
gmax_shallow 13510228
gmaxsg 0
gmin_shallow 898201
gminsg 0
gmulgs 23834023
gmulgu 283360013
gsubgs 1731943
gtodouble 66245906
gtofp 257190596
gtomp 22428
gtos 85865502
gtou 100712
guncloneNULL 49832798
guncloneNULL_deep 1511160
gval 6230
hash_str 2757652
hash_str_len 31655233
icopy_avma 8051322717
idealchineseinit 5427
idealred 138815
identity_ZV 8120
identity_perm 3243149
identity_zv 3267513
inf_get_sign 1453168
inv_content 0
is_bigint 574370094
is_const_t 5006723877
is_extscalar_t 6876
is_intreal_t 9702755
is_matvec_t 742927348
is_noncalc_t 88503207
is_pm1 2216386705
is_qfb_t 0
is_rational_t 5017619
is_real_t 61899888
is_recursive_t 9103211891
is_scalar_t 403468970
is_universal_constant 326522109
is_vec_t 43963142
isint1 17987172
isintm1 6086521
isintzero 2848820972
ismpzero 9702657
isonstack 8326898041
killblock 1959312
leading_coeff 169337947
leafcopy_avma 595058430
lg_increase 446289829
lgcols 352694918
lgpol 2588315501
lincombii 38270429
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 755019
matpascal 4683
matslice 16825381
mkcol 10653534
mkcol2 156986684
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33587
mkcols 40411
mkcomplex 92010676
mkerr 0
mkfrac 41923977
mkfraccopy 4999683
mkfracss 1209563
mkintmod 8065623
mkintmodu 1834
mkmat 4779722
mkmat2 33666009
mkmat22 50259616
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122317
mkmoo 108901
mkoo 1332021
mkpadic 2009
mkpolmod 3075580
mkqfb 27928550
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69668191
mkvec2 213089719
mkvec2copy 114534
mkvec2s 220729
mkvec3 119623442
mkvec3s 524441
mkvec4 10150227
mkvec4s 21
mkvec5 15187670
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131794628
mkvecsmall2 256213771
mkvecsmall3 103272146
mkvecsmall4 18684441
mkvecsmall5 1718726
modpr_get_T 13867121
modpr_get_p 1887627
modpr_get_pr 31236607
mul_content 2657586
mul_denom 10709864
mulsubii 3893018
nbits2extraprec 1498256273
nbits2ndec 228
nbits2nlong 12725527
nbits2prec 188995756
nbrows 158269373
nchar2nlong 127919029
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304814
nf_get_M 21745716
nf_get_Tr 23281
nf_get_degree 71378519
nf_get_diff 4445
nf_get_disc 463523
nf_get_index 3712046
nf_get_invzk 9774951
nf_get_pol 98122734
nf_get_r1 23466136
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628847
nf_get_roundG 1748494
nf_get_sign 519600
nf_get_varn 1503773
nf_get_zk 4382
nf_get_zkden 5462010
nf_get_zkprimpart 5416331
normalize_frac 17311797
odd 2124225954
pari_calloc 47756
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 487494577
pari_malloc 723598493
pari_realloc 1880
pari_realloc_ip 2357953
pari_stack_alloc 1006452045
pari_stack_base 1012323438
pari_stack_delete 5895423
pari_stack_init 6376043
pari_stack_new 911145234
pari_stack_pushp 5821
perm_conj 418299
perm_inv 3747204
perm_mul 80955154
perm_sqr 728
pol0_F2x 13183811
pol0_Flx 103155087
pol1_F2x 3952064
pol1_Flx 54916606
pol_0 26065083
pol_1 3752510
pol_x 3860404
pol_xn 2252862
pol_xnall 294
polx_F2x 1073636
polx_Flx 37502000
polx_zx 0
polxn_Flx 371
powIs 588203
powii 43130199
pr_get_e 16167552
pr_get_f 26444711
pr_get_gen 12072785
pr_get_p 92761452
pr_get_tau 49773935
pr_is_inert 17224508
pr_norm 1090575
prec2lg 4565830073
prec2nbits 106953487
prec2nbits_mul 581096
prec2ndec 9778
precdbl 476364
qfb_disc 18502569
qfb_disc3 4995182
qfb_is_qfi 64537358
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8141976312
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 763902
row_i 987
rowcopy 204988
rowpermute 14759072
rowslice 79464588
rowslicepermute 234890
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27897469
sqrfrac 4150914
sqrti 6612759
sqrtnr 2810625
sqrtr 86880589
sstoQ 1097313
sturm 385
submulii 31985153
submuliu 7700
submuliu_inplace 60128471
truecoef 0
trunc_safe 0
ulogint 2077998
upr_norm 346135
uutoQ 1602144
vec_append 3468955
vec_ei 1714709
vec_lengthen 18960
vec_prepend 313927
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039424
veclast 9374242
vecmodii 0
vecmoduu 49784
vecpermute 21113810
vecreverse 697305
vecreverse_inplace 2605
vecslice 657476557
vecslicepermute 2859868
vecsmall_append 4114701
vecsmall_coincidence 0
vecsmall_concat 1464615
vecsmall_copy 5369862
vecsmall_ei 585102
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043234
vecsmall_max 1177387
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75754
vecsmall_to_col 7925780
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78758996
vecsmalltrunc_append 100781826
vecsmalltrunc_init 243276387
vecsplice 385009
vectrunc_append 15859936
vectrunc_append_batch 9667
vectrunc_init 11767262
zc_to_ZC 7911242
zero_F2m 0
zero_F2m_copy 845266
zero_F2v 3656455
zero_F2x 1181
zero_Flm 2830900
zero_Flm_copy 238318
zero_Flv 59745163
zero_Flx 1427283
zero_zm 0
zero_zv 37302575
zero_zx 0
zerocol 125155588
zeromat 109009
zeromatcopy 14377904
zeropadic 857548
zeropadic_shallow 17150
zeropol 12867388
zeroser 138992
zerovec 29348183
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 2184158
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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