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 30674-be81ecfdd4) Lines: 1421 1535 92.6 %
Date: 2026-02-09 09:23:39 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 8038791
F2m_copy 200437
F2m_flip 1554251
F2m_set 798
F2v_clear 12353969
F2v_coeff 661321425
F2v_copy 4487
F2v_ei 42
F2v_flip 1554251
F2v_set 101403603
F2v_to_F2x 37895
F2xX_shift 0
F2x_clear 12353983
F2x_coeff 667861692
F2x_copy 60597294
F2x_div 1571464
F2x_equal 4673331
F2x_equal1 2874163
F2x_flip 1554251
F2x_renormalize 115452348
F2x_set 124766011
F2xqX_div 33173
F3m_coeff 3255870
F3m_copy 0
F3m_set 0
Flm_copy 6433675
Flm_row 8741418
Flv_copy 2555046
Flx_constant 334021
Flx_copy 173237362
Flx_div 1998024
Flx_div_pre 21693074
Flx_equal1 8330197
Flx_lead 978737
Flx_mulu 1105443
FlxqX_div 0
FlxqX_div_pre 165415
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694728
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849903
FpXY_Fq_evaly 20587
FpX_div 5581225
FpX_renormalize 144218586
Fp_add 181535612
Fp_addmul 11320606
Fp_center 77300995
Fp_center_i 18019800
Fp_div 15035236
Fp_divu 15129680
Fp_double 21057472
Fp_halve 247271
Fp_inv 23441417
Fp_invsafe 1100353
Fp_mul 200957694
Fp_muls 17780
Fp_mulu 68835568
Fp_neg 31477884
Fp_red 82193294
Fp_sqr 64800869
Fp_sub 203470249
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 571645
FqX_Fq_mul 427294
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38564
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444757
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 367711
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 3106394
Fq_to_FpXQ 73652
GENbinbase 961798204
QV_isscalar 54416055
Q_abs 8062716
Q_abs_shallow 120236
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619854
RgC_gtofp 34030012
RgC_gtomp 574
RgM_dimensions 9741711
RgM_fpnorml2 22662
RgM_gtofp 8257691
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179185
RgV_gtofp 56
RgV_is_QV 140733
RgV_is_ZV 32160180
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210271
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103403254
RgX_div 6997996
RgX_equal_var 26883015
RgX_fpnorml2 61600
RgX_gtofp 7145475
RgX_is_QX 399934
RgX_is_ZX 22423233
RgX_is_monomial 1331351
RgX_is_rational 68166
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479369
RgX_shift_inplace_init 479369
RgX_to_RgV 140
Rg_col_ei 1450991
Rg_to_Fq 756
ZC_hnfrem 10697487
ZM_ZV_mod 596631
ZM_hnfrem 363817
ZM_lll 7117543
ZV_ZV_mod 8131945
ZV_dvd 23485
ZV_isscalar 23674953
ZV_to_zv 3211716
ZXQ_mul 2161209
ZXQ_sqr 960444
ZX_equal1 12850
ZX_is_monic 7374283
ZX_renormalize 155046763
Z_ispower 98
Z_issquare 457643
abgrp_get_cyc 12230882
abgrp_get_gen 1765035
abgrp_get_no 354949
absfrac 46540171
absfrac_shallow 28237
addmuliu 535727
addmuliu_inplace 59637418
affc_fixlg 249621
affgr 899594
bid_get_MOD 2157261
bid_get_U 3680238
bid_get_arch 41188
bid_get_archp 2397146
bid_get_cyc 5739859
bid_get_fact 2498951
bid_get_fact2 2201581
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804713
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157986
bin_copy 496011080
bit_accuracy 3160644337
bit_accuracy_mul 3175484
bit_prec 143257382
bnf_get_clgp 5375025
bnf_get_cyc 3686161
bnf_get_fu 25859
bnf_get_fu_nocheck 289088
bnf_get_gen 1680322
bnf_get_logfu 2874776
bnf_get_nf 9865189
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367774
bnf_get_tuN 283000
bnf_get_tuU 303583
bnr_get_bid 2046100
bnr_get_bnf 3710949
bnr_get_clgp 2830245
bnr_get_cyc 2522493
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77118
bnr_get_nf 1399083
bnr_get_no 277488
both_odd 124090478
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975460
cgiv 102685244
checkell_i 5593239
closure_arity 372171478
closure_codestr 321757485
closure_get_code 0
closure_get_data 321707416
closure_get_dbg 13635
closure_get_frame 14717218
closure_get_oper 321732966
closure_get_text 37079
closure_is_variadic 45906473
col_ei 5924632
coltrunc_init 740257
const_col 9729657
const_vec 34568973
const_vecsmall 19706932
constant_coeff 1441437
cxcompotor 18214117
cxnorm 91203785
cxtofp 9081120
cxtoreal 337207
cyc_get_expo 2757498
cyclic_perm 99911
dbllog2r 92821022
degpol 5501567197
div_content 58505
divsBIL 8095557625
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997089
ell_get_a2 7106179
ell_get_a3 8814058
ell_get_a4 8536720
ell_get_a6 10370958
ell_get_b2 7371041
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11018041
ell_get_c6 13474527
ell_get_disc 16815244
ell_get_j 2126269
ell_get_type 12498764
ell_is_inf 52418956
ellff_get_a4a6 800036
ellff_get_field 2036859
ellinf 1870070
ellnf_get_bnf 119
ellnf_get_nf 2027241
equali1 1174066364
equalim1 139505558
err_get_compo 294
err_get_num 62550
gaddgs 123248654
gal_get_den 27867
gal_get_e 91
gal_get_gen 15435
gal_get_group 80388
gal_get_invvdm 27873
gal_get_mod 23758
gal_get_orders 6678
gal_get_p 6006
gal_get_pol 36316
gal_get_roots 32731
gc_GEN 255447961
gc_INT 4113710460
gc_INT_affii 8494370
gc_all 109639176
gc_leaf 1139648601
gc_slice 2204401
gc_upto 1955357920
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 761914
gdivsg 531589
gen_I 1269732
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928966
get_F2x_mod 2499347
get_F2x_var 2533959
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82844951
get_Flx_mod 25598301
get_Flx_var 68362361
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 6424471
get_FpX_mod 3394349
get_FpX_var 6957923
gisdouble 2995904
gmax_shallow 13510200
gmaxsg 0
gmin_shallow 877794
gminsg 0
gmulgs 22605490
gmulgu 283104681
gsubgs 1724815
gtodouble 60787554
gtofp 254316995
gtomp 22428
gtos 85855681
gtou 100715
guncloneNULL 48008318
guncloneNULL_deep 1492529
gval 6230
hash_str 2760614
hash_str_len 31631835
icopy_avma 8042707233
idealchineseinit 5427
idealred 138442
identity_ZV 8113
identity_perm 3242076
identity_zv 3266426
inf_get_sign 1452924
inv_content 0
is_bigint 563414515
is_const_t 4900741709
is_extscalar_t 6876
is_intreal_t 9584591
is_matvec_t 659146499
is_noncalc_t 85779944
is_pm1 2205604091
is_qfb_t 0
is_rational_t 5032549
is_real_t 62059883
is_recursive_t 9238754151
is_scalar_t 375681035
is_universal_constant 326562046
is_vec_t 43959697
isint1 17586493
isintm1 5710425
isintzero 2845538443
ismpzero 9584488
isonstack 8280544420
killblock 1951034
leading_coeff 170217559
leafcopy_avma 576825250
lg_increase 317711966
lgcols 351648263
lgpol 2692300690
lincombii 38220935
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 754838
matpascal 3983
matslice 16824661
mkcol 10639821
mkcol2 156918548
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33552
mkcols 40411
mkcomplex 91623542
mkerr 0
mkfrac 41645828
mkfraccopy 4999832
mkfracss 1209563
mkintmod 8070933
mkintmodu 1834
mkmat 4750916
mkmat2 33655287
mkmat22 50291471
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122268
mkmoo 108794
mkoo 1331871
mkpadic 2009
mkpolmod 3103719
mkqfb 27929826
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71239051
mkvec2 185441030
mkvec2copy 114531
mkvec2s 220250
mkvec3 119729370
mkvec3s 524441
mkvec4 10094882
mkvec4s 21
mkvec5 15185902
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131639147
mkvecsmall2 234969669
mkvecsmall3 104187143
mkvecsmall4 18677516
mkvecsmall5 1717494
modpr_get_T 13867133
modpr_get_p 1887627
modpr_get_pr 31236603
mul_content 2657254
mul_denom 10707582
mulsubii 3881914
nbits2extraprec 1458391338
nbits2ndec 228
nbits2nlong 12752500
nbits2prec 186141578
nbrows 157466135
nchar2nlong 127556880
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304848
nf_get_M 21745681
nf_get_Tr 22080
nf_get_degree 71369639
nf_get_diff 4445
nf_get_disc 463489
nf_get_index 3711416
nf_get_invzk 9767597
nf_get_pol 98108410
nf_get_r1 23466064
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628927
nf_get_roundG 1748162
nf_get_sign 519549
nf_get_varn 1503786
nf_get_zk 4382
nf_get_zkden 5459619
nf_get_zkprimpart 5414036
normalize_frac 17206386
odd 2090750832
pari_calloc 47734
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
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 509497121
pari_malloc 745443681
pari_realloc 1890
pari_realloc_ip 2349524
pari_stack_alloc 1021840783
pari_stack_base 1027637526
pari_stack_delete 5829141
pari_stack_init 6353356
pari_stack_new 926557868
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781895
perm_mul 80915769
perm_sqr 728
pol0_F2x 13251298
pol0_Flx 103476914
pol1_F2x 3957195
pol1_Flx 55062692
pol_0 82787546
pol_1 3755815
pol_x 3857370
pol_xn 2249558
pol_xnall 294
polx_F2x 1078377
polx_Flx 37487927
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130336
pr_get_e 16161884
pr_get_f 26443026
pr_get_gen 12071192
pr_get_p 92750486
pr_get_tau 49768583
pr_is_inert 17224076
pr_norm 1090466
prec2lg 4470081878
prec2nbits 103969443
prec2nbits_mul 581165
prec2ndec 9778
precdbl 475406
qfb_disc 18502557
qfb_disc3 4995859
qfb_is_qfi 62329984
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8004447103
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 763893
row_i 987
rowcopy 204988
rowpermute 14706220
rowslice 79347960
rowslicepermute 185107
rowsplice 273
ser_isexactzero 10120326
shallowcopy 27632369
sqrfrac 4148271
sqrti 6610249
sqrtnr 2810114
sqrtr 80378226
sstoQ 1097313
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60129126
truecoef 0
trunc_safe 0
ulogint 1723481
upr_norm 346135
uutoQ 1602144
vec_append 3464654
vec_ei 1713835
vec_lengthen 18960
vec_prepend 314003
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036940
veclast 9372703
vecmodii 0
vecmoduu 49784
vecpermute 20550404
vecreverse 697305
vecreverse_inplace 2605
vecslice 656622954
vecslicepermute 2691822
vecsmall_append 4114695
vecsmall_coincidence 0
vecsmall_concat 1464190
vecsmall_copy 4403832
vecsmall_ei 584684
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043240
vecsmall_max 1164121
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75640
vecsmall_to_col 7838829
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78720518
vecsmalltrunc_append 100862666
vecsmalltrunc_init 190119105
vecsplice 384944
vectrunc_append 15856118
vectrunc_append_batch 9667
vectrunc_init 11767215
zc_to_ZC 7824649
zero_F2m 0
zero_F2m_copy 845055
zero_F2v 3647769
zero_F2x 1350
zero_Flm 2830530
zero_Flm_copy 238231
zero_Flv 59674632
zero_Flx 1426845
zero_zm 0
zero_zv 36736489
zero_zx 0
zerocol 122331202
zeromat 109100
zeromatcopy 14249567
zeropadic 857605
zeropadic_shallow 17150
zeropol 42353435
zeroser 138943
zerovec 29292232
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 2183789
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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