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 30824-18397de1d0) Lines: 1422 1535 92.6 %
Date: 2026-04-18 09:26:04 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 8359245
F2m_copy 200660
F2m_flip 1554420
F2m_set 798
F2v_clear 12361903
F2v_coeff 664438895
F2v_copy 4487
F2v_ei 42
F2v_flip 1554420
F2v_set 104115213
F2v_to_F2x 38135
F2xX_shift 0
F2x_clear 12361896
F2x_coeff 671023165
F2x_copy 64603997
F2x_div 1571444
F2x_equal 4189902
F2x_equal1 2873661
F2x_flip 1554420
F2x_renormalize 127790140
F2x_set 129955537
F2xqX_div 33173
F3m_coeff 3255556
F3m_copy 0
F3m_set 0
Flm_copy 6434478
Flm_row 8743586
Flv_copy 2059191
Flx_constant 1091388
Flx_copy 175760620
Flx_div 1999771
Flx_div_pre 21701554
Flx_equal1 8195925
Flx_lead 1069276
Flx_mulu 1105338
FlxqX_div 0
FlxqX_div_pre 165407
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4691952
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582131
FpX_renormalize 147166153
Fp_add 183226416
Fp_addmul 11216280
Fp_center 77212442
Fp_center_i 18006114
Fp_div 15033591
Fp_divu 15127988
Fp_double 20778548
Fp_halve 247271
Fp_inv 23413102
Fp_invsafe 1097228
Fp_mul 203549175
Fp_muls 17780
Fp_mulu 67394756
Fp_neg 32670601
Fp_red 82929508
Fp_sqr 63829172
Fp_sub 201777071
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 573027
FqX_Fq_mul 427291
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38566
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 445775
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 368263
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 3106364
Fq_to_FpXQ 73652
GENbinbase 919097322
QV_isscalar 54419572
Q_abs 8078367
Q_abs_shallow 120245
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619945
RgC_gtofp 34035130
RgC_gtomp 574
RgM_dimensions 9954846
RgM_fpnorml2 22655
RgM_gtofp 8257836
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22226604
RgV_gtofp 56
RgV_is_QV 141994
RgV_is_ZV 32096674
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210271
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102503836
RgX_div 6998185
RgX_equal_var 26880490
RgX_fpnorml2 61607
RgX_gtofp 7164496
RgX_is_QX 399940
RgX_is_ZX 22316298
RgX_is_monomial 1326827
RgX_is_rational 68156
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
RgX_to_RgV 140
Rg_col_ei 1451180
Rg_to_Fq 756
ZC_hnfrem 10697400
ZM_ZV_mod 610662
ZM_hnfrem 401419
ZM_lll 7136350
ZV_ZV_mod 8147086
ZV_dvd 23485
ZV_isscalar 23674677
ZV_to_zv 3211716
ZXQ_mul 2166258
ZXQ_sqr 960607
ZX_equal1 10488
ZX_is_monic 7319870
ZX_renormalize 157563433
Z_ispower 98
Z_issquare 509449
abgrp_get_cyc 12231185
abgrp_get_gen 1765031
abgrp_get_no 406725
absfrac 47729506
absfrac_shallow 28237
addmuliu 541608
addmuliu_inplace 59568395
affc_fixlg 249624
affgr 899608
bid_get_MOD 2157247
bid_get_U 3680223
bid_get_arch 41188
bid_get_archp 2397051
bid_get_cyc 5739754
bid_get_fact 2498901
bid_get_fact2 2201567
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804610
bid_get_ideal 72842
bid_get_mod 1521919
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157970
bin_copy 472931898
bit_accuracy 3145856741
bit_accuracy_mul 3175715
bit_prec 143395608
bnf_get_clgp 5375468
bnf_get_cyc 3686610
bnf_get_fu 25857
bnf_get_fu_nocheck 289083
bnf_get_gen 1680316
bnf_get_logfu 2874751
bnf_get_nf 9866290
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367772
bnf_get_tuN 282993
bnf_get_tuU 303571
bnr_get_bid 2046089
bnr_get_bnf 3710944
bnr_get_clgp 2830236
bnr_get_cyc 2522564
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399076
bnr_get_no 277484
both_odd 123223408
cbrtr 0
cbrtr_abs 0
cgetalloc 10157
cgetc 975458
cgiv 105492565
checkell_i 8103977
closure_arity 356462443
closure_codestr 306051734
closure_get_code 28
closure_get_data 306001789
closure_get_dbg 13660
closure_get_frame 14677792
closure_get_oper 306027755
closure_get_text 37150
closure_is_variadic 45926822
col_ei 5925204
coltrunc_init 740257
const_col 9730085
const_vec 34626850
const_vecsmall 18860664
constant_coeff 1442671
cxcompotor 18237664
cxnorm 94247406
cxtofp 9093015
cxtoreal 337205
cyc_get_expo 2757522
cyclic_perm 99932
dbllog2r 94338592
degpol 5518130163
div_content 58511
divsBIL 8239183511
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 17049180
ell_get_a2 11108726
ell_get_a3 12863747
ell_get_a4 10325144
ell_get_a6 10371104
ell_get_b2 7371388
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11018671
ell_get_c6 13474384
ell_get_disc 16815621
ell_get_j 2126269
ell_get_type 14946050
ell_is_inf 50154327
ellff_get_a4a6 551452
ellff_get_field 1790589
ellinf 913917
ellnf_get_bnf 119
ellnf_get_nf 2027224
equali1 1171385298
equalim1 139546630
err_get_compo 294
err_get_num 62596
gaddgs 123271981
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80413
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 246989025
gc_INT 4137541559
gc_INT_affii 11581299
gc_all 102446752
gc_leaf 1164659872
gc_slice 2211529
gc_upto 1972581212
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 761924
gdivsg 561179
gen_I 1268855
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928595
get_F2x_mod 3307640
get_F2x_var 2168734
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 83153936
get_Flx_mod 25493149
get_Flx_var 68232315
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 6969255
get_FpX_mod 3387859
get_FpX_var 6952352
gisdouble 2996049
gmax_shallow 13510228
gmaxsg 0
gmin_shallow 899742
gminsg 0
gmulgs 23878746
gmulgu 283360013
gsubgs 1731914
gtodouble 66251972
gtofp 257192971
gtomp 22428
gtos 85866156
gtou 100717
guncloneNULL 49823256
guncloneNULL_deep 1506342
gval 6230
hash_str 2779150
hash_str_len 31617967
icopy_avma 8055390857
idealchineseinit 5427
idealred 138812
identity_ZV 8120
identity_perm 3243460
identity_zv 3267823
inf_get_sign 1453173
inv_content 0
is_bigint 574409230
is_const_t 5002126636
is_extscalar_t 6904
is_intreal_t 9712932
is_matvec_t 743811843
is_noncalc_t 88515389
is_pm1 2218603392
is_qfb_t 0
is_rational_t 5017814
is_real_t 61900627
is_recursive_t 9110817923
is_scalar_t 403950855
is_universal_constant 326454002
is_vec_t 44031607
isint1 17994591
isintm1 6086894
isintzero 2848926240
ismpzero 9712826
isonstack 8364128317
killblock 1956052
leading_coeff 169343438
leafcopy_avma 592692423
lg_increase 431973267
lgcols 352754329
lgpol 2626496335
lincombii 38271166
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 755025
matpascal 4683
matslice 16824877
mkcol 10653984
mkcol2 157021457
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33577
mkcols 40411
mkcomplex 92017294
mkerr 0
mkfrac 42557554
mkfraccopy 5006885
mkfracss 1209560
mkintmod 8066602
mkintmodu 1834
mkmat 4780784
mkmat2 33655899
mkmat22 50257158
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122301
mkmoo 108892
mkoo 1332061
mkpadic 2009
mkpolmod 3075563
mkqfb 27928184
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 68913844
mkvec2 212785339
mkvec2copy 114530
mkvec2s 220739
mkvec3 122678690
mkvec3s 524441
mkvec4 10150227
mkvec4s 21
mkvec5 15187572
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140323722
mkvecsmall2 256923173
mkvecsmall3 103245324
mkvecsmall4 18643040
mkvecsmall5 1718741
modpr_get_T 13866881
modpr_get_p 1887625
modpr_get_pr 31236420
mul_content 2657404
mul_denom 10753369
mulsubii 3892559
nbits2extraprec 1497543287
nbits2ndec 228
nbits2nlong 12748397
nbits2prec 189009987
nbrows 158344182
nchar2nlong 127834178
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304798
nf_get_M 21740899
nf_get_Tr 23352
nf_get_degree 71375919
nf_get_diff 4445
nf_get_disc 463578
nf_get_index 3711987
nf_get_invzk 9774464
nf_get_pol 98119081
nf_get_r1 23465703
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628833
nf_get_roundG 1748478
nf_get_sign 519600
nf_get_varn 1503728
nf_get_zk 4382
nf_get_zkden 5462056
nf_get_zkprimpart 5416254
normalize_frac 17568725
odd 2123964446
pari_calloc 48043
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 487283302
pari_malloc 723391265
pari_realloc 1887
pari_realloc_ip 2342272
pari_stack_alloc 1005698023
pari_stack_base 1011561186
pari_stack_delete 5863913
pari_stack_init 6331966
pari_stack_new 910388737
pari_stack_pushp 5842
perm_conj 418299
perm_inv 3747561
perm_mul 80952795
perm_sqr 728
pol0_F2x 17358452
pol0_Flx 111631610
pol1_F2x 4768842
pol1_Flx 55713887
pol_0 27168588
pol_1 3752570
pol_x 3865065
pol_xn 2253489
pol_xnall 294
polx_F2x 1079113
polx_Flx 37493789
polx_zx 0
polxn_Flx 371
powIs 620095
powii 43130037
pr_get_e 16167151
pr_get_f 26443852
pr_get_gen 12072303
pr_get_p 92760049
pr_get_tau 49772648
pr_is_inert 17223998
pr_norm 1090527
prec2lg 4566326650
prec2nbits 106954299
prec2nbits_mul 581096
prec2ndec 9778
precdbl 476396
qfb_disc 18502442
qfb_disc3 4995029
qfb_is_qfi 64544127
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8148458971
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 763878
row_i 987
rowcopy 204988
rowpermute 14759648
rowslice 79444096
rowslicepermute 234873
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27896745
sqrfrac 4201742
sqrti 6612849
sqrtnr 2810685
sqrtr 87173240
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60074381
truecoef 0
trunc_safe 0
ulogint 2089972
upr_norm 346136
uutoQ 1602144
vec_append 3469019
vec_ei 1714717
vec_lengthen 18960
vec_prepend 313914
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4040790
veclast 9374221
vecmodii 0
vecmoduu 49784
vecpermute 21114959
vecreverse 697305
vecreverse_inplace 2605
vecslice 657256100
vecslicepermute 2860188
vecsmall_append 4114728
vecsmall_coincidence 0
vecsmall_concat 1464655
vecsmall_copy 7341149
vecsmall_ei 585123
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1177248
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75747
vecsmall_to_col 7925961
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78756496
vecsmalltrunc_append 100739948
vecsmalltrunc_init 238671672
vecsplice 385004
vectrunc_append 15856938
vectrunc_append_batch 9667
vectrunc_init 11768735
zc_to_ZC 7911416
zero_F2m 0
zero_F2m_copy 845279
zero_F2v 3656631
zero_F2x 1181
zero_Flm 2831080
zero_Flm_copy 238307
zero_Flv 61990966
zero_Flx 3255674
zero_zm 0
zero_zv 39511859
zero_zx 0
zerocol 125185621
zeromat 108959
zeromatcopy 14378749
zeropadic 857650
zeropadic_shallow 17150
zeropol 12889497
zeroser 138992
zerovec 29348326
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 1687954
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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