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 30842-de08e65e1b) Lines: 1421 1535 92.6 %
Date: 2026-04-29 09:26:11 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 8357466
F2m_copy 200649
F2m_flip 1553961
F2m_set 798
F2v_clear 12361106
F2v_coeff 664429030
F2v_copy 4487
F2v_ei 42
F2v_flip 1553961
F2v_set 104113751
F2v_to_F2x 37933
F2xX_shift 0
F2x_clear 12361099
F2x_coeff 671055267
F2x_copy 63898896
F2x_div 1559207
F2x_equal 4136944
F2x_equal1 2873654
F2x_flip 1553961
F2x_renormalize 127046226
F2x_set 129835644
F2xqX_div 33173
F3m_coeff 3255550
F3m_copy 0
F3m_set 0
Flm_copy 6434422
Flm_row 8743780
Flv_copy 2059272
Flx_constant 1091089
Flx_copy 175952446
Flx_div 1999744
Flx_div_pre 21726369
Flx_equal1 8200508
Flx_lead 1069349
Flx_mulu 1105440
FlxqX_div 0
FlxqX_div_pre 165408
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4692330
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582140
FpX_renormalize 147299489
Fp_add 183272659
Fp_addmul 11230752
Fp_center 77180499
Fp_center_i 18003955
Fp_div 15033766
Fp_divu 15128241
Fp_double 20735316
Fp_halve 247271
Fp_inv 23415583
Fp_invsafe 1097240
Fp_mul 203728155
Fp_muls 17780
Fp_mulu 68209102
Fp_neg 32672877
Fp_red 82931752
Fp_sqr 63664989
Fp_sub 201398546
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 576301
FqX_Fq_mul 427301
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38568
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 447449
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 368760
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 3106109
Fq_to_FpXQ 73652
GENbinbase 919455272
QV_isscalar 54419206
Q_abs 8125701
Q_abs_shallow 120232
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619946
RgC_gtofp 34031959
RgC_gtomp 574
RgM_dimensions 9955047
RgM_fpnorml2 22788
RgM_gtofp 8257615
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22227416
RgV_gtofp 56
RgV_is_QV 142002
RgV_is_ZV 32097188
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210267
RgXQX_div 1904
RgXQX_rem 127915
RgX_coeff 2889731
RgX_copy 102877116
RgX_div 6998920
RgX_equal_var 27139595
RgX_fpnorml2 63069
RgX_gtofp 7166296
RgX_is_QX 400072
RgX_is_ZX 22392135
RgX_is_monomial 1328268
RgX_is_rational 68291
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479448
RgX_shift_inplace_init 479448
RgX_to_RgV 140
Rg_col_ei 1451048
Rg_to_Fq 756
ZC_hnfrem 10697444
ZM_ZV_mod 610678
ZM_hnfrem 401371
ZM_lll 7136346
ZV_ZV_mod 8147150
ZV_dvd 23485
ZV_isscalar 23675648
ZV_to_zv 3211716
ZXQ_mul 2166445
ZXQ_sqr 961452
ZX_equal1 10488
ZX_is_monic 7670811
ZX_renormalize 157608960
Z_ispower 98
Z_issquare 509446
abgrp_get_cyc 12231231
abgrp_get_gen 1765033
abgrp_get_no 406725
absfrac 47978685
absfrac_shallow 28237
addmuliu 541644
addmuliu_inplace 59554440
affc_fixlg 249619
affgr 899650
bid_get_MOD 2157251
bid_get_U 3680226
bid_get_arch 41188
bid_get_archp 2397097
bid_get_cyc 5739825
bid_get_fact 2498927
bid_get_fact2 2201574
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804673
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157969
bin_copy 473107118
bit_accuracy 3142865606
bit_accuracy_mul 3175733
bit_prec 143396596
bnf_get_clgp 5375473
bnf_get_cyc 3686611
bnf_get_fu 25859
bnf_get_fu_nocheck 289092
bnf_get_gen 1680321
bnf_get_logfu 2874767
bnf_get_nf 9866315
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367774
bnf_get_tuN 283004
bnf_get_tuU 303586
bnr_get_bid 2046092
bnr_get_bnf 3710944
bnr_get_clgp 2830224
bnr_get_cyc 2522556
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77118
bnr_get_nf 1399075
bnr_get_no 277486
both_odd 123592144
cbrtr 0
cbrtr_abs 0
cgetalloc 10157
cgetc 975444
cgiv 105485434
checkell_i 8104049
closure_arity 356553282
closure_codestr 306106477
closure_get_code 28
closure_get_data 306068825
closure_get_dbg 13660
closure_get_frame 14691595
closure_get_oper 306089738
closure_get_text 37150
closure_is_variadic 45951791
col_ei 5925615
coltrunc_init 740257
const_col 9730156
const_vec 34645303
const_vecsmall 18860687
constant_coeff 1445641
cxcompotor 18242794
cxnorm 94254166
cxtofp 9095491
cxtoreal 337205
cyc_get_expo 2757551
cyclic_perm 99932
dbllog2r 94343806
degpol 5528216966
div_content 58512
divsBIL 8239100097
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 17049191
ell_get_a2 11108730
ell_get_a3 12863758
ell_get_a4 10325148
ell_get_a6 10371108
ell_get_b2 7371395
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11018743
ell_get_c6 13474432
ell_get_disc 16815777
ell_get_j 2126269
ell_get_type 14946307
ell_is_inf 50146646
ellff_get_a4a6 551461
ellff_get_field 1790611
ellinf 913913
ellnf_get_bnf 119
ellnf_get_nf 2027238
equali1 1172039022
equalim1 139546854
err_get_compo 294
err_get_num 62595
gaddgs 123271123
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 247034797
gc_INT 4138354670
gc_INT_affii 11576774
gc_all 102461003
gc_leaf 1166370616
gc_slice 2211491
gc_upto 1973154631
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 761948
gdivsg 561181
gen_I 1268887
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928628
get_F2x_mod 3307650
get_F2x_var 2168780
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 83577005
get_Flx_mod 25514536
get_Flx_var 68285055
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 6969450
get_FpX_mod 3387867
get_FpX_var 6952540
gisdouble 2995593
gmax_shallow 13510226
gmaxsg 0
gmin_shallow 901179
gminsg 0
gmulgs 23842410
gmulgu 283360013
gsubgs 1731059
gtodouble 66256434
gtofp 257170667
gtomp 22428
gtos 85878458
gtou 100707
guncloneNULL 49839410
guncloneNULL_deep 1513401
gval 6237
hash_str 2781060
hash_str_len 31625412
icopy_avma 8056896276
idealchineseinit 5427
idealred 139132
identity_ZV 8120
identity_perm 3243229
identity_zv 3267591
inf_get_sign 1453272
inv_content 0
is_bigint 574386972
is_const_t 5002717934
is_extscalar_t 6904
is_intreal_t 9712864
is_matvec_t 744198671
is_noncalc_t 88518037
is_pm1 2219360604
is_qfb_t 0
is_rational_t 5019860
is_real_t 61900636
is_recursive_t 9115273232
is_scalar_t 404087650
is_universal_constant 326432901
is_vec_t 44023186
isint1 17996528
isintm1 6087163
isintzero 2848506945
ismpzero 9712756
isonstack 8367118753
killblock 1960146
leading_coeff 169745471
leafcopy_avma 593223739
lg_increase 444013235
lgcols 352749448
lgpol 2630097137
lincombii 38261601
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 755037
matpascal 4683
matslice 16824119
mkcol 10656524
mkcol2 157031916
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33586
mkcols 40411
mkcomplex 92035363
mkerr 0
mkfrac 42735791
mkfraccopy 5009071
mkfracss 1209563
mkintmod 8066645
mkintmodu 1834
mkmat 4781596
mkmat2 33656272
mkmat22 50265424
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122312
mkmoo 108906
mkoo 1332143
mkpadic 2009
mkpolmod 3262565
mkqfb 27928571
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 68928395
mkvec2 215149145
mkvec2copy 114536
mkvec2s 220745
mkvec3 123869862
mkvec3s 524441
mkvec4 10156622
mkvec4s 21
mkvec5 15187499
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140394439
mkvecsmall2 256996535
mkvecsmall3 103267598
mkvecsmall4 18638998
mkvecsmall5 1718723
modpr_get_T 13867119
modpr_get_p 1887626
modpr_get_pr 31236594
mul_content 2657680
mul_denom 10753528
mulsubii 3892742
nbits2extraprec 1497649711
nbits2ndec 228
nbits2nlong 12770939
nbits2prec 189013584
nbrows 158340611
nchar2nlong 127848119
ndec2nbits 8270
ndec2nlong 41626
ndec2prec 33356
nfV_to_scalar_or_alg 26300
nf_get_G 304796
nf_get_M 21741603
nf_get_Tr 23348
nf_get_degree 71377300
nf_get_diff 4445
nf_get_disc 464177
nf_get_index 3713841
nf_get_invzk 9775299
nf_get_pol 98128551
nf_get_r1 23466658
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1629068
nf_get_roundG 1748790
nf_get_sign 519599
nf_get_varn 1503815
nf_get_zk 4382
nf_get_zkden 5462333
nf_get_zkprimpart 5416510
normalize_frac 17573603
odd 2123858050
pari_calloc 48071
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 487466017
pari_malloc 723569713
pari_realloc 1887
pari_realloc_ip 2347737
pari_stack_alloc 1005974508
pari_stack_base 1011850859
pari_stack_delete 5900524
pari_stack_init 6347971
pari_stack_new 910616652
pari_stack_pushp 5842
perm_conj 418299
perm_inv 3747292
perm_mul 80947122
perm_sqr 728
pol0_F2x 17309939
pol0_Flx 111679393
pol1_F2x 4769236
pol1_Flx 55764431
pol_0 27228267
pol_1 3753757
pol_x 3865359
pol_xn 2253999
pol_xnall 294
polx_F2x 1074711
polx_Flx 37514286
polx_zx 0
polxn_Flx 371
powIs 620095
powii 43129995
pr_get_e 16167099
pr_get_f 26443797
pr_get_gen 12072255
pr_get_p 92760326
pr_get_tau 49773055
pr_is_inert 17224084
pr_norm 1090506
prec2lg 4562791725
prec2nbits 106951360
prec2nbits_mul 581094
prec2ndec 9778
precdbl 476406
qfb_disc 18502515
qfb_disc3 4995233
qfb_is_qfi 64516002
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8148043290
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 763877
row_i 987
rowcopy 204988
rowpermute 14758949
rowslice 79434746
rowslicepermute 234206
rowsplice 273
ser_isexactzero 11434317
shallowcopy 27896726
sqrfrac 4206147
sqrti 6613306
sqrtnr 2810621
sqrtr 87176523
sstoQ 1097313
sturm 385
submulii 31985143
submuliu 7700
submuliu_inplace 60062993
truecoef 0
trunc_safe 0
ulogint 2094801
upr_norm 346135
uutoQ 1602144
vec_append 3469024
vec_ei 1714758
vec_lengthen 18960
vec_prepend 313922
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4041783
veclast 9374251
vecmodii 0
vecmoduu 49784
vecpermute 21108368
vecreverse 697305
vecreverse_inplace 2605
vecslice 657191158
vecslicepermute 2857433
vecsmall_append 4114753
vecsmall_coincidence 0
vecsmall_concat 1464640
vecsmall_copy 7341060
vecsmall_ei 585172
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043248
vecsmall_max 1177568
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75748
vecsmall_to_col 7924627
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78750662
vecsmalltrunc_append 100694635
vecsmalltrunc_init 243461017
vecsplice 385001
vectrunc_append 15855869
vectrunc_append_batch 9667
vectrunc_init 11768003
zc_to_ZC 7910081
zero_F2m 0
zero_F2m_copy 845239
zero_F2v 3656473
zero_F2x 1181
zero_Flm 2830965
zero_Flm_copy 238309
zero_Flv 61978512
zero_Flx 3255443
zero_zm 0
zero_zv 39498654
zero_zx 0
zerocol 125181148
zeromat 108971
zeromatcopy 14378885
zeropadic 857559
zeropadic_shallow 17150
zeropol 12924037
zeroser 139013
zerovec 29348442
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 1688017
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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