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 30759-17b423fb9b) Lines: 1421 1535 92.6 %
Date: 2026-03-20 09:26:27 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 8358644
F2m_copy 200666
F2m_flip 1554066
F2m_set 798
F2v_clear 12361631
F2v_coeff 664436085
F2v_copy 4487
F2v_ei 42
F2v_flip 1554066
F2v_set 104114870
F2v_to_F2x 38045
F2xX_shift 0
F2x_clear 12361620
F2x_coeff 671002976
F2x_copy 59767622
F2x_div 1571120
F2x_equal 4664730
F2x_equal1 2873449
F2x_flip 1554066
F2x_renormalize 112609949
F2x_set 126015688
F2xqX_div 33173
F3m_coeff 3255557
F3m_copy 0
F3m_set 0
Flm_copy 6434364
Flm_row 8743526
Flv_copy 2555418
Flx_constant 1091650
Flx_copy 173807871
Flx_div 1999816
Flx_div_pre 21709052
Flx_equal1 8195321
Flx_lead 1069186
Flx_mulu 1105196
FlxqX_div 0
FlxqX_div_pre 165410
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4693015
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5581988
FpX_renormalize 145869181
Fp_add 181057115
Fp_addmul 11234461
Fp_center 77411294
Fp_center_i 18031131
Fp_div 15034624
Fp_divu 15129117
Fp_double 20840027
Fp_halve 247271
Fp_inv 23436366
Fp_invsafe 1097232
Fp_mul 201029194
Fp_muls 17780
Fp_mulu 69243669
Fp_neg 31477297
Fp_red 82931969
Fp_sqr 64193004
Fp_sub 202585268
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 572202
FqX_Fq_mul 427297
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 445021
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 367929
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 3106480
Fq_to_FpXQ 73652
GENbinbase 919499343
QV_isscalar 54421558
Q_abs 8061035
Q_abs_shallow 120214
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619948
RgC_gtofp 34035386
RgC_gtomp 574
RgM_dimensions 9955185
RgM_fpnorml2 22655
RgM_gtofp 8257878
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22235705
RgV_gtofp 56
RgV_is_QV 142000
RgV_is_ZV 32095983
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210265
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102485661
RgX_div 6997065
RgX_equal_var 26880188
RgX_fpnorml2 61606
RgX_gtofp 7163871
RgX_is_QX 399948
RgX_is_ZX 22315383
RgX_is_monomial 1320025
RgX_is_rational 68157
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
RgX_to_RgV 140
Rg_col_ei 1451122
Rg_to_Fq 756
ZC_hnfrem 10697659
ZM_ZV_mod 610730
ZM_hnfrem 401391
ZM_lll 7117834
ZV_ZV_mod 8147267
ZV_dvd 23485
ZV_isscalar 23675071
ZV_to_zv 3211715
ZXQ_mul 2166171
ZXQ_sqr 960524
ZX_equal1 10488
ZX_is_monic 7319915
ZX_renormalize 155185056
Z_ispower 98
Z_issquare 509455
abgrp_get_cyc 12231299
abgrp_get_gen 1765030
abgrp_get_no 406734
absfrac 46991350
absfrac_shallow 28237
addmuliu 541581
addmuliu_inplace 59568844
affc_fixlg 249622
affgr 899594
bid_get_MOD 2157246
bid_get_U 3680220
bid_get_arch 41188
bid_get_archp 2397117
bid_get_cyc 5739845
bid_get_fact 2498935
bid_get_fact2 2201562
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804696
bid_get_ideal 72842
bid_get_mod 1521920
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157969
bin_copy 473131881
bit_accuracy 3132208984
bit_accuracy_mul 3175715
bit_prec 143404156
bnf_get_clgp 5375466
bnf_get_cyc 3686603
bnf_get_fu 25859
bnf_get_fu_nocheck 289092
bnf_get_gen 1680317
bnf_get_logfu 2874761
bnf_get_nf 9866313
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367774
bnf_get_tuN 282996
bnf_get_tuU 303578
bnr_get_bid 2046037
bnr_get_bnf 3710947
bnr_get_clgp 2830248
bnr_get_cyc 2522575
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399068
bnr_get_no 277487
both_odd 124216391
cbrtr 0
cbrtr_abs 0
cgetalloc 10136
cgetc 975456
cgiv 105490247
checkell_i 5593751
closure_arity 356597827
closure_codestr 306138688
closure_get_code 28
closure_get_data 306112972
closure_get_dbg 13660
closure_get_frame 14735125
closure_get_oper 306128962
closure_get_text 37150
closure_is_variadic 45931137
col_ei 5925283
coltrunc_init 740257
const_col 9730122
const_vec 34678413
const_vecsmall 18860908
constant_coeff 1441251
cxcompotor 18238227
cxnorm 94062642
cxtofp 9093208
cxtoreal 337203
cyc_get_expo 2757474
cyclic_perm 99932
dbllog2r 94327047
degpol 5519895493
div_content 58510
divsBIL 8234514201
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997577
ell_get_a2 7106322
ell_get_a3 8814545
ell_get_a4 8536863
ell_get_a6 10371101
ell_get_b2 7371385
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11019122
ell_get_c6 13474847
ell_get_disc 16816835
ell_get_j 2126269
ell_get_type 12499893
ell_is_inf 49442751
ellff_get_a4a6 800523
ellff_get_field 2038563
ellinf 1208509
ellnf_get_bnf 119
ellnf_get_nf 2027241
equali1 1169376054
equalim1 139568235
err_get_compo 294
err_get_num 62596
gaddgs 123270551
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 247010877
gc_INT 4136778774
gc_INT_affii 11582918
gc_all 102551286
gc_leaf 1144201244
gc_slice 2211145
gc_upto 1956779061
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 761919
gdivsg 559710
gen_I 1268868
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928531
get_F2x_mod 2490590
get_F2x_var 2536784
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82516219
get_Flx_mod 25501298
get_Flx_var 68380995
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 6969416
get_FpX_mod 3387860
get_FpX_var 6954635
gisdouble 2996317
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 898153
gminsg 0
gmulgs 23869207
gmulgu 283360013
gsubgs 1731936
gtodouble 66244253
gtofp 257197562
gtomp 22428
gtos 85865432
gtou 100684
guncloneNULL 49834028
guncloneNULL_deep 1513198
gval 6230
hash_str 2757652
hash_str_len 31655312
icopy_avma 8051317548
idealchineseinit 5427
idealred 138817
identity_ZV 8120
identity_perm 3243521
identity_zv 3267882
inf_get_sign 1453243
inv_content 0
is_bigint 574370346
is_const_t 5006444763
is_extscalar_t 6876
is_intreal_t 9702725
is_matvec_t 742935048
is_noncalc_t 88499367
is_pm1 2216806512
is_qfb_t 0
is_rational_t 5017728
is_real_t 61899890
is_recursive_t 9102717433
is_scalar_t 403468390
is_universal_constant 326594606
is_vec_t 43956069
isint1 17987139
isintm1 6086528
isintzero 2848998275
ismpzero 9702610
isonstack 8328584858
killblock 1960271
leading_coeff 169335136
leafcopy_avma 594963615
lg_increase 445147484
lgcols 352704050
lgpol 2593635197
lincombii 38283294
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 755020
matpascal 4683
matslice 16826292
mkcol 10653492
mkcol2 157004388
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33582
mkcols 40411
mkcomplex 92005509
mkerr 0
mkfrac 41927396
mkfraccopy 4999659
mkfracss 1209563
mkintmod 8065668
mkintmodu 1834
mkmat 4780243
mkmat2 33666206
mkmat22 50262310
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122305
mkmoo 108898
mkoo 1332104
mkpadic 2009
mkpolmod 3075605
mkqfb 27928483
mkquad 69118
mkrfrac 698438
mkrfraccopy 14
mkvec 69704064
mkvec2 213057916
mkvec2copy 114532
mkvec2s 220727
mkvec3 120752863
mkvec3s 524441
mkvec4 10150254
mkvec4s 21
mkvec5 15187448
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131831166
mkvecsmall2 256231691
mkvecsmall3 103271179
mkvecsmall4 18690548
mkvecsmall5 1718718
modpr_get_T 13867071
modpr_get_p 1887626
modpr_get_pr 31236485
mul_content 2657622
mul_denom 10709875
mulsubii 3893620
nbits2extraprec 1498114764
nbits2ndec 228
nbits2nlong 12721101
nbits2prec 189004622
nbrows 158280650
nchar2nlong 127923676
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304866
nf_get_M 21745610
nf_get_Tr 23282
nf_get_degree 71378692
nf_get_diff 4445
nf_get_disc 463507
nf_get_index 3712014
nf_get_invzk 9774678
nf_get_pol 98123817
nf_get_r1 23466113
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628903
nf_get_roundG 1748552
nf_get_sign 519600
nf_get_varn 1503786
nf_get_zk 4382
nf_get_zkden 5462101
nf_get_zkprimpart 5416280
normalize_frac 17311745
odd 2124316712
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 487499879
pari_malloc 723582954
pari_realloc 1880
pari_realloc_ip 2358334
pari_stack_alloc 1006409781
pari_stack_base 1012262349
pari_stack_delete 5899659
pari_stack_init 6375905
pari_stack_new 911079468
pari_stack_pushp 5821
perm_conj 418299
perm_inv 3747573
perm_mul 80959545
perm_sqr 728
pol0_F2x 13230149
pol0_Flx 103190887
pol1_F2x 3951371
pol1_Flx 54909603
pol_0 26065148
pol_1 3752489
pol_x 3860469
pol_xn 2252811
pol_xnall 294
polx_F2x 1078930
polx_Flx 37500199
polx_zx 0
polxn_Flx 371
powIs 588203
powii 43130204
pr_get_e 16167594
pr_get_f 26444551
pr_get_gen 12072793
pr_get_p 92760894
pr_get_tau 49773766
pr_is_inert 17224247
pr_norm 1090541
prec2lg 4566448973
prec2nbits 106946619
prec2nbits_mul 581095
prec2ndec 9778
precdbl 476369
qfb_disc 18502611
qfb_disc3 4995146
qfb_is_qfi 64523601
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8143645677
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 763894
row_i 987
rowcopy 204988
rowpermute 14759552
rowslice 79473581
rowslicepermute 234547
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27898542
sqrfrac 4151045
sqrti 6612815
sqrtnr 2810741
sqrtr 86881545
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60079414
truecoef 0
trunc_safe 0
ulogint 2072659
upr_norm 346133
uutoQ 1602144
vec_append 3469000
vec_ei 1714734
vec_lengthen 18960
vec_prepend 313921
vec_setconst 0
vec_shorten 11556
vec_to_vecsmall 4039444
veclast 9374222
vecmodii 0
vecmoduu 49784
vecpermute 21109605
vecreverse 697305
vecreverse_inplace 2605
vecslice 657603006
vecslicepermute 2858607
vecsmall_append 4114708
vecsmall_coincidence 0
vecsmall_concat 1464637
vecsmall_copy 5369909
vecsmall_ei 585161
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043253
vecsmall_max 1177561
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75754
vecsmall_to_col 7925032
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78763194
vecsmalltrunc_append 100874878
vecsmalltrunc_init 243361781
vecsplice 385012
vectrunc_append 15858016
vectrunc_append_batch 9667
vectrunc_init 11768299
zc_to_ZC 7910496
zero_F2m 0
zero_F2m_copy 845280
zero_F2v 3656649
zero_F2x 1181
zero_Flm 2831133
zero_Flm_copy 238309
zero_Flv 59758111
zero_Flx 1427031
zero_zm 0
zero_zv 37315939
zero_zx 0
zerocol 125157050
zeromat 109012
zeromatcopy 14378090
zeropadic 857682
zeropadic_shallow 17150
zeropol 12867426
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 2184152
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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