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 30735-65f72320ad) Lines: 1422 1535 92.6 %
Date: 2026-03-14 09:23:49 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 8156851
F2m_copy 200426
F2m_flip 1554531
F2m_set 798
F2v_clear 12353994
F2v_coeff 661439781
F2v_copy 4487
F2v_ei 42
F2v_flip 1554531
F2v_set 101430776
F2v_to_F2x 37910
F2xX_shift 0
F2x_clear 12353981
F2x_coeff 668075579
F2x_copy 59778163
F2x_div 1571441
F2x_equal 4669309
F2x_equal1 2873541
F2x_flip 1554531
F2x_renormalize 112607432
F2x_set 123363905
F2xqX_div 33173
F3m_coeff 3255607
F3m_copy 0
F3m_set 0
Flm_copy 6434508
Flm_row 8743657
Flv_copy 2555025
Flx_constant 334136
Flx_copy 173128786
Flx_div 1999790
Flx_div_pre 21697243
Flx_equal1 8195281
Flx_lead 978956
Flx_mulu 1105384
FlxqX_div 0
FlxqX_div_pre 165416
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4692737
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582030
FpX_renormalize 145679359
Fp_add 181079153
Fp_addmul 11240447
Fp_center 77372746
Fp_center_i 18042620
Fp_div 15034524
Fp_divu 15129071
Fp_double 20830532
Fp_halve 247271
Fp_inv 23435822
Fp_invsafe 1097236
Fp_mul 200823524
Fp_muls 17780
Fp_mulu 69114701
Fp_neg 31479810
Fp_red 82931514
Fp_sqr 63819144
Fp_sub 202908842
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 572204
FqX_Fq_mul 427295
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 445026
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 367934
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 3106449
Fq_to_FpXQ 73652
GENbinbase 915811004
QV_isscalar 54420931
Q_abs 8059640
Q_abs_shallow 120239
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619950
RgC_gtofp 34029766
RgC_gtomp 574
RgM_dimensions 9954165
RgM_fpnorml2 22655
RgM_gtofp 8257351
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22233734
RgV_gtofp 56
RgV_is_QV 142000
RgV_is_ZV 32095289
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210269
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2667901
RgX_copy 102480433
RgX_div 6996400
RgX_equal_var 26880196
RgX_fpnorml2 61607
RgX_gtofp 7151224
RgX_is_QX 399940
RgX_is_ZX 22311385
RgX_is_monomial 1318405
RgX_is_rational 68157
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479435
RgX_shift_inplace_init 479435
RgX_to_RgV 140
Rg_col_ei 1451074
Rg_to_Fq 756
ZC_hnfrem 10697634
ZM_ZV_mod 610653
ZM_hnfrem 401441
ZM_lll 7117559
ZV_ZV_mod 8147142
ZV_dvd 23485
ZV_isscalar 23675440
ZV_to_zv 3211713
ZXQ_mul 2166298
ZXQ_sqr 960619
ZX_equal1 10488
ZX_is_monic 7319904
ZX_renormalize 155012503
Z_ispower 98
Z_issquare 509438
abgrp_get_cyc 12231248
abgrp_get_gen 1765038
abgrp_get_no 406726
absfrac 46516134
absfrac_shallow 28237
addmuliu 541653
addmuliu_inplace 59623994
affc_fixlg 249623
affgr 899594
bid_get_MOD 2157245
bid_get_U 3680223
bid_get_arch 41188
bid_get_archp 2397120
bid_get_cyc 5739825
bid_get_fact 2498933
bid_get_fact2 2201567
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804677
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157963
bin_copy 471287965
bit_accuracy 3128364766
bit_accuracy_mul 3175715
bit_prec 143275169
bnf_get_clgp 5375473
bnf_get_cyc 3686605
bnf_get_fu 25859
bnf_get_fu_nocheck 289088
bnf_get_gen 1680323
bnf_get_logfu 2874757
bnf_get_nf 9866317
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367777
bnf_get_tuN 283004
bnf_get_tuU 303585
bnr_get_bid 2046098
bnr_get_bnf 3710955
bnr_get_clgp 2830253
bnr_get_cyc 2522586
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399077
bnr_get_no 277490
both_odd 124255122
cbrtr 0
cbrtr_abs 0
cgetalloc 10115
cgetc 975458
cgiv 105471322
checkell_i 5593340
closure_arity 356286798
closure_codestr 305869179
closure_get_code 28
closure_get_data 305822744
closure_get_dbg 13653
closure_get_frame 14719982
closure_get_oper 305844322
closure_get_text 37136
closure_is_variadic 45910649
col_ei 5925351
coltrunc_init 740257
const_col 9730113
const_vec 34652411
const_vecsmall 18747841
constant_coeff 1441261
cxcompotor 18211777
cxnorm 91200963
cxtofp 9079988
cxtoreal 337205
cyc_get_expo 2757539
cyclic_perm 99911
dbllog2r 92840197
degpol 5494525536
div_content 58510
divsBIL 8107224959
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997094
ell_get_a2 7106204
ell_get_a3 8814062
ell_get_a4 8536745
ell_get_a6 10370983
ell_get_b2 7371019
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11018034
ell_get_c6 13474431
ell_get_disc 16815480
ell_get_j 2126269
ell_get_type 12499229
ell_is_inf 49398180
ellff_get_a4a6 800046
ellff_get_field 2036933
ellinf 1208488
ellnf_get_bnf 119
ellnf_get_nf 2027252
equali1 1166221837
equalim1 139505707
err_get_compo 294
err_get_num 62582
gaddgs 123254020
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80415
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 245533285
gc_INT 4132972299
gc_INT_affii 11566721
gc_all 102397914
gc_leaf 1130815142
gc_slice 2205820
gc_upto 1944605105
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 531590
gen_I 1268284
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928218
get_F2x_mod 2489574
get_F2x_var 2534481
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82438541
get_Flx_mod 25498066
get_Flx_var 68370761
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 6968739
get_FpX_mod 3387830
get_FpX_var 6954670
gisdouble 2995255
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 877895
gminsg 0
gmulgs 23774187
gmulgu 283104681
gsubgs 1730191
gtodouble 60938629
gtofp 254428586
gtomp 22428
gtos 85855733
gtou 100679
guncloneNULL 49824762
guncloneNULL_deep 1506570
gval 6230
hash_str 2741929
hash_str_len 31636837
icopy_avma 8045006883
idealchineseinit 5427
idealred 138814
identity_ZV 8120
identity_perm 3242538
identity_zv 3266889
inf_get_sign 1453279
inv_content 0
is_bigint 571737795
is_const_t 4981255831
is_extscalar_t 6876
is_intreal_t 9585306
is_matvec_t 741171094
is_noncalc_t 88450439
is_pm1 2215301409
is_qfb_t 0
is_rational_t 5015311
is_real_t 61897672
is_recursive_t 9070409591
is_scalar_t 403350193
is_universal_constant 326475561
is_vec_t 43903768
isint1 17586781
isintm1 5711230
isintzero 2838266846
ismpzero 9585210
isonstack 8298273345
killblock 1958091
leading_coeff 171563371
leafcopy_avma 590864587
lg_increase 447477195
lgcols 352676087
lgpol 2605749362
lincombii 38258890
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 754939
matpascal 3983
matslice 16824519
mkcol 10652816
mkcol2 156989269
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33584
mkcols 40411
mkcomplex 91614367
mkerr 0
mkfrac 41634612
mkfraccopy 4999456
mkfracss 1209563
mkintmod 8061353
mkintmodu 1834
mkmat 4780111
mkmat2 33665619
mkmat22 50257127
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122318
mkmoo 108900
mkoo 1332137
mkpadic 2009
mkpolmod 3075581
mkqfb 27928505
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69628865
mkvec2 213118836
mkvec2copy 114533
mkvec2s 220378
mkvec3 120437082
mkvec3s 524441
mkvec4 10146694
mkvec4s 21
mkvec5 15186649
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131375814
mkvecsmall2 235091055
mkvecsmall3 103261484
mkvecsmall4 18690504
mkvecsmall5 1717621
modpr_get_T 13867074
modpr_get_p 1887627
modpr_get_pr 31236587
mul_content 2657563
mul_denom 10709825
mulsubii 3892442
nbits2extraprec 1458356177
nbits2ndec 228
nbits2nlong 12717346
nbits2prec 186142208
nbrows 158260501
nchar2nlong 127787779
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26299
nf_get_G 304838
nf_get_M 21746003
nf_get_Tr 23281
nf_get_degree 71377953
nf_get_diff 4445
nf_get_disc 463514
nf_get_index 3712030
nf_get_invzk 9774929
nf_get_pol 98122786
nf_get_r1 23466594
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628875
nf_get_roundG 1748517
nf_get_sign 519601
nf_get_varn 1503769
nf_get_zk 4382
nf_get_zkden 5462167
nf_get_zkprimpart 5416394
normalize_frac 17205557
odd 2120676713
pari_calloc 47609
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
pari_err_DIM 718
pari_err_DOMAIN 2869
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 485646304
pari_malloc 721717105
pari_realloc 1873
pari_realloc_ip 2350382
pari_stack_alloc 1005967282
pari_stack_base 1011823321
pari_stack_delete 5884155
pari_stack_init 6357408
pari_stack_new 910687376
pari_stack_pushp 5800
perm_conj 418299
perm_inv 3747148
perm_mul 80951436
perm_sqr 728
pol0_F2x 13232527
pol0_Flx 103172620
pol1_F2x 3950037
pol1_Flx 54901080
pol_0 25907655
pol_1 3750950
pol_x 3857977
pol_xn 2249874
pol_xnall 294
polx_F2x 1078918
polx_Flx 37496623
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130079
pr_get_e 16167319
pr_get_f 26444446
pr_get_gen 12072631
pr_get_p 92761014
pr_get_tau 49773511
pr_is_inert 17224324
pr_norm 1090551
prec2lg 4471668500
prec2nbits 103970770
prec2nbits_mul 581080
prec2ndec 9778
precdbl 475640
qfb_disc 18502552
qfb_disc3 4995187
qfb_is_qfi 64477452
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8016129265
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 763888
row_i 987
rowcopy 204988
rowpermute 14757635
rowslice 79457470
rowslicepermute 233732
rowsplice 273
ser_isexactzero 10120354
shallowcopy 27896831
sqrfrac 4148335
sqrti 6611270
sqrtnr 2810245
sqrtr 80376155
sstoQ 1097313
sturm 385
submulii 31985153
submuliu 7700
submuliu_inplace 60125212
truecoef 0
trunc_safe 0
ulogint 1987954
upr_norm 346135
uutoQ 1602144
vec_append 3468982
vec_ei 1714362
vec_lengthen 18960
vec_prepend 313922
vec_setconst 0
vec_shorten 11556
vec_to_vecsmall 4039438
veclast 9372788
vecmodii 0
vecmoduu 49784
vecpermute 21096579
vecreverse 697305
vecreverse_inplace 2605
vecslice 657481149
vecslicepermute 2854957
vecsmall_append 4114722
vecsmall_coincidence 0
vecsmall_concat 1464652
vecsmall_copy 5369083
vecsmall_ei 584798
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1164079
vecsmall_min 2352
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75754
vecsmall_to_col 7922092
vecsmall_to_vec 577021
vecsmall_to_vec_inplace 3304
vecsmallpermute 78755128
vecsmalltrunc_append 100814980
vecsmalltrunc_init 244549299
vecsplice 385007
vectrunc_append 15857964
vectrunc_append_batch 9667
vectrunc_init 11768084
zc_to_ZC 7907547
zero_F2m 0
zero_F2m_copy 845075
zero_F2v 3647827
zero_F2x 1181
zero_Flm 2830639
zero_Flm_copy 238317
zero_Flv 59738540
zero_Flx 1427095
zero_zm 0
zero_zv 37303931
zero_zx 0
zerocol 125135473
zeromat 108989
zeromatcopy 14377024
zeropadic 857637
zeropadic_shallow 17150
zeropol 12864858
zeroser 138992
zerovec 29344875
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 2183786
zv_to_ZV 568222
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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