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: 1421 1535 92.6 %
Date: 2026-03-12 09:23:43 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 8152802
F2m_copy 200407
F2m_flip 1553124
F2m_set 798
F2v_clear 12351055
F2v_coeff 661415835
F2v_copy 4487
F2v_ei 42
F2v_flip 1553124
F2v_set 101427056
F2v_to_F2x 37527
F2xX_shift 0
F2x_clear 12351353
F2x_coeff 668036229
F2x_copy 58940092
F2x_div 1555451
F2x_equal 4600908
F2x_equal1 2873787
F2x_flip 1553123
F2x_renormalize 111613022
F2x_set 123116269
F2xqX_div 33173
F3m_coeff 3255605
F3m_copy 0
F3m_set 0
Flm_copy 6434550
Flm_row 8743768
Flv_copy 2555005
Flx_constant 334141
Flx_copy 173140087
Flx_div 1999843
Flx_div_pre 21695598
Flx_equal1 8195765
Flx_lead 978706
Flx_mulu 1105454
FlxqX_div 0
FlxqX_div_pre 165415
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4692844
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582071
FpX_renormalize 145679828
Fp_add 181390059
Fp_addmul 11335358
Fp_center 77382007
Fp_center_i 18037622
Fp_div 15033777
Fp_divu 15128268
Fp_double 21047528
Fp_halve 247271
Fp_inv 23436278
Fp_invsafe 1097236
Fp_mul 200980744
Fp_muls 17780
Fp_mulu 68872099
Fp_neg 31479364
Fp_red 82928533
Fp_sqr 64388654
Fp_sub 203392386
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 427299
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 445022
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 3106607
Fq_to_FpXQ 73652
GENbinbase 915830644
QV_isscalar 54420937
Q_abs 8059632
Q_abs_shallow 120225
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619947
RgC_gtofp 34033392
RgC_gtomp 574
RgM_dimensions 9954000
RgM_fpnorml2 22655
RgM_gtofp 8257540
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22233968
RgV_gtofp 56
RgV_is_QV 142000
RgV_is_ZV 32095287
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210269
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2667901
RgX_copy 102480340
RgX_div 6996400
RgX_equal_var 26880194
RgX_fpnorml2 61606
RgX_gtofp 7151280
RgX_is_QX 399948
RgX_is_ZX 22311368
RgX_is_monomial 1318350
RgX_is_rational 68159
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
RgX_to_RgV 140
Rg_col_ei 1451079
Rg_to_Fq 756
ZC_hnfrem 10697635
ZM_ZV_mod 610683
ZM_hnfrem 401425
ZM_lll 7117523
ZV_ZV_mod 8147162
ZV_dvd 23485
ZV_isscalar 23675082
ZV_to_zv 3211716
ZXQ_mul 2166293
ZXQ_sqr 960612
ZX_equal1 10488
ZX_is_monic 7319907
ZX_renormalize 155017474
Z_ispower 98
Z_issquare 509442
abgrp_get_cyc 12231231
abgrp_get_gen 1765014
abgrp_get_no 406719
absfrac 46516101
absfrac_shallow 28237
addmuliu 541635
addmuliu_inplace 59557628
affc_fixlg 249624
affgr 899594
bid_get_MOD 2157147
bid_get_U 3680226
bid_get_arch 41188
bid_get_archp 2397122
bid_get_cyc 5739834
bid_get_fact 2498946
bid_get_fact2 2201568
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804687
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157971
bin_copy 471300048
bit_accuracy 3124553428
bit_accuracy_mul 3175715
bit_prec 143293706
bnf_get_clgp 5375438
bnf_get_cyc 3686595
bnf_get_fu 25859
bnf_get_fu_nocheck 289090
bnf_get_gen 1680302
bnf_get_logfu 2874761
bnf_get_nf 9866309
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367776
bnf_get_tuN 282996
bnf_get_tuU 303582
bnr_get_bid 2046092
bnr_get_bnf 3710943
bnr_get_clgp 2830231
bnr_get_cyc 2522563
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399074
bnr_get_no 277487
both_odd 124083350
cbrtr 0
cbrtr_abs 0
cgetalloc 10115
cgetc 975460
cgiv 105464823
checkell_i 5593377
closure_arity 356299669
closure_codestr 305881531
closure_get_code 28
closure_get_data 305835602
closure_get_dbg 13653
closure_get_frame 14720276
closure_get_oper 305863064
closure_get_text 37136
closure_is_variadic 45910661
col_ei 5925342
coltrunc_init 740257
const_col 9730113
const_vec 34652737
const_vecsmall 18747362
constant_coeff 1441250
cxcompotor 18212702
cxnorm 91203337
cxtofp 9080451
cxtoreal 337207
cyc_get_expo 2757556
cyclic_perm 99911
dbllog2r 92841644
degpol 5492080081
div_content 58511
divsBIL 8105108144
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997118
ell_get_a2 7106202
ell_get_a3 8814086
ell_get_a4 8536743
ell_get_a6 10370981
ell_get_b2 7371045
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11018013
ell_get_c6 13474419
ell_get_disc 16815366
ell_get_j 2126269
ell_get_type 12499261
ell_is_inf 49420564
ellff_get_a4a6 800064
ellff_get_field 2036947
ellinf 1208481
ellnf_get_bnf 119
ellnf_get_nf 2027241
equali1 1166242806
equalim1 139505690
err_get_compo 294
err_get_num 62582
gaddgs 123253998
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 245529160
gc_INT 4133980810
gc_INT_affii 11571759
gc_all 102398465
gc_leaf 1130156466
gc_slice 2206036
gc_upto 1944643838
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 761926
gdivsg 531590
gen_I 1268266
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928083
get_F2x_mod 2489671
get_F2x_var 2534347
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82229520
get_Flx_mod 25498700
get_Flx_var 68373419
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 6968929
get_FpX_mod 3387837
get_FpX_var 6954757
gisdouble 2995517
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 877884
gminsg 0
gmulgs 23837823
gmulgu 283104680
gsubgs 1730187
gtodouble 60940421
gtofp 254457014
gtomp 22428
gtos 85855705
gtou 100659
guncloneNULL 49828543
guncloneNULL_deep 1510990
gval 6230
hash_str 2741930
hash_str_len 31636959
icopy_avma 8045870885
idealchineseinit 5427
idealred 138816
identity_ZV 8120
identity_perm 3242997
identity_zv 3267348
inf_get_sign 1453206
inv_content 0
is_bigint 571784634
is_const_t 4982222104
is_extscalar_t 6876
is_intreal_t 9585221
is_matvec_t 741179705
is_noncalc_t 88450684
is_pm1 2215178952
is_qfb_t 0
is_rational_t 5015329
is_real_t 61897672
is_recursive_t 9070614696
is_scalar_t 403349720
is_universal_constant 326542163
is_vec_t 43915621
isint1 17586761
isintm1 5711208
isintzero 2839519338
ismpzero 9585123
isonstack 8298749090
killblock 1959879
leading_coeff 171564637
leafcopy_avma 590733421
lg_increase 446385692
lgcols 352691183
lgpol 2601596228
lincombii 38279954
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 754947
matpascal 3983
matslice 16825774
mkcol 10652832
mkcol2 156990436
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33581
mkcols 40411
mkcomplex 91618771
mkerr 0
mkfrac 41639986
mkfraccopy 4999504
mkfracss 1209563
mkintmod 8061705
mkintmodu 1834
mkmat 4780035
mkmat2 33665643
mkmat22 50259735
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122307
mkmoo 108903
mkoo 1332062
mkpadic 2009
mkpolmod 3075583
mkqfb 27928058
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69658817
mkvec2 212851743
mkvec2copy 114534
mkvec2s 220379
mkvec3 119793281
mkvec3s 524441
mkvec4 10146717
mkvec4s 21
mkvec5 15186638
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131310393
mkvecsmall2 235088182
mkvecsmall3 103261285
mkvecsmall4 18688946
mkvecsmall5 1717573
modpr_get_T 13867104
modpr_get_p 1887627
modpr_get_pr 31236625
mul_content 2657468
mul_denom 10709847
mulsubii 3893013
nbits2extraprec 1458338784
nbits2ndec 228
nbits2nlong 12714297
nbits2prec 186162354
nbrows 158269280
nchar2nlong 127791930
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304715
nf_get_M 21745632
nf_get_Tr 23278
nf_get_degree 71377698
nf_get_diff 4445
nf_get_disc 463519
nf_get_index 3712041
nf_get_invzk 9774930
nf_get_pol 98121641
nf_get_r1 23466069
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628751
nf_get_roundG 1748398
nf_get_sign 519599
nf_get_varn 1503766
nf_get_zk 4382
nf_get_zkden 5462087
nf_get_zkprimpart 5416339
normalize_frac 17205884
odd 2120428460
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 485663989
pari_malloc 721734292
pari_realloc 1873
pari_realloc_ip 2351428
pari_stack_alloc 1005993233
pari_stack_base 1011887931
pari_stack_delete 5898644
pari_stack_init 6358413
pari_stack_new 910719039
pari_stack_pushp 5800
perm_conj 418299
perm_inv 3747310
perm_mul 80958313
perm_sqr 728
pol0_F2x 13174528
pol0_Flx 103105783
pol1_F2x 3949635
pol1_Flx 54901128
pol_0 25907728
pol_1 3750993
pol_x 3857878
pol_xn 2249922
pol_xnall 294
polx_F2x 1072655
polx_Flx 37497700
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43129951
pr_get_e 16167148
pr_get_f 26444175
pr_get_gen 12072461
pr_get_p 92760886
pr_get_tau 49773376
pr_is_inert 17224128
pr_norm 1090439
prec2lg 4472205382
prec2nbits 103970024
prec2nbits_mul 581081
prec2ndec 9778
precdbl 475638
qfb_disc 18502577
qfb_disc3 4994946
qfb_is_qfi 64496111
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8014382521
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 763895
row_i 987
rowcopy 204988
rowpermute 14758234
rowslice 79472563
rowslicepermute 233669
rowsplice 273
ser_isexactzero 10120354
shallowcopy 27896318
sqrfrac 4148202
sqrti 6611402
sqrtnr 2810219
sqrtr 80381296
sstoQ 1097313
sturm 385
submulii 31985153
submuliu 7700
submuliu_inplace 60064341
truecoef 0
trunc_safe 0
ulogint 1985296
upr_norm 346135
uutoQ 1602144
vec_append 3469033
vec_ei 1714386
vec_lengthen 18960
vec_prepend 313917
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039443
veclast 9372791
vecmodii 0
vecmoduu 49784
vecpermute 21097898
vecreverse 697305
vecreverse_inplace 2605
vecslice 657592703
vecslicepermute 2855522
vecsmall_append 4114670
vecsmall_coincidence 0
vecsmall_concat 1464584
vecsmall_copy 5369165
vecsmall_ei 584787
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043243
vecsmall_max 1164078
vecsmall_min 2352
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75750
vecsmall_to_col 7922137
vecsmall_to_vec 577021
vecsmall_to_vec_inplace 3304
vecsmallpermute 78762154
vecsmalltrunc_append 100847951
vecsmalltrunc_init 244090522
vecsplice 385014
vectrunc_append 15858790
vectrunc_append_batch 9667
vectrunc_init 11767879
zc_to_ZC 7907592
zero_F2m 0
zero_F2m_copy 844997
zero_F2v 3647470
zero_F2x 1181
zero_Flm 2831087
zero_Flm_copy 238311
zero_Flv 59722352
zero_Flx 1427175
zero_zm 0
zero_zv 37288707
zero_zx 0
zerocol 125141421
zeromat 108938
zeromatcopy 14377045
zeropadic 857640
zeropadic_shallow 17150
zeropol 12864874
zeroser 138992
zerovec 29344912
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 2183737
zv_to_ZV 568222
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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