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 30734-f1f26dedcb) Lines: 1421 1535 92.6 %
Date: 2026-03-06 09:24:29 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 8154053
F2m_copy 200421
F2m_flip 1553630
F2m_set 798
F2v_clear 12352305
F2v_coeff 661423288
F2v_copy 4487
F2v_ei 42
F2v_flip 1553630
F2v_set 101428344
F2v_to_F2x 37703
F2xX_shift 0
F2x_clear 12352296
F2x_coeff 668014533
F2x_copy 59104802
F2x_div 1557709
F2x_equal 4609398
F2x_equal1 2873684
F2x_flip 1553630
F2x_renormalize 111743726
F2x_set 123127694
F2xqX_div 33173
F3m_coeff 3255554
F3m_copy 0
F3m_set 0
Flm_copy 6434567
Flm_row 8743098
Flv_copy 2554030
Flx_constant 334137
Flx_copy 173177761
Flx_div 1999868
Flx_div_pre 21698992
Flx_equal1 8183242
Flx_lead 979339
Flx_mulu 1104851
FlxqX_div 0
FlxqX_div_pre 165411
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4664099
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 818704
FpXY_Fq_evaly 20587
FpX_div 5582086
FpX_renormalize 145342549
Fp_add 181064368
Fp_addmul 11286670
Fp_center 77393096
Fp_center_i 18054111
Fp_div 15034210
Fp_divu 15124985
Fp_double 20961299
Fp_halve 247271
Fp_inv 23435972
Fp_invsafe 1097111
Fp_mul 200884681
Fp_muls 17780
Fp_mulu 71448378
Fp_neg 31470880
Fp_red 82928409
Fp_sqr 64242810
Fp_sub 202880567
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 572192
FqX_Fq_mul 427294
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38567
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 445020
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 3106693
Fq_to_FpXQ 73652
GENbinbase 915708839
QV_isscalar 54420509
Q_abs 8059615
Q_abs_shallow 120224
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619950
RgC_gtofp 34036115
RgC_gtomp 574
RgM_dimensions 9953901
RgM_fpnorml2 22655
RgM_gtofp 8258295
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22234310
RgV_gtofp 56
RgV_is_QV 142003
RgV_is_ZV 32095285
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210269
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2667901
RgX_copy 102478953
RgX_div 6996190
RgX_equal_var 26879914
RgX_fpnorml2 61608
RgX_gtofp 7151464
RgX_is_QX 399944
RgX_is_ZX 22311362
RgX_is_monomial 1318155
RgX_is_rational 68157
RgX_isscalar 0
RgX_renormalize 347987
RgX_shift_inplace 479435
RgX_shift_inplace_init 479435
RgX_to_RgV 140
Rg_col_ei 1451136
Rg_to_Fq 756
ZC_hnfrem 10697411
ZM_ZV_mod 610688
ZM_hnfrem 401445
ZM_lll 7118110
ZV_ZV_mod 8147130
ZV_dvd 23485
ZV_isscalar 23675200
ZV_to_zv 3211714
ZXQ_mul 2166273
ZXQ_sqr 960615
ZX_equal1 10488
ZX_is_monic 7319781
ZX_renormalize 154940576
Z_ispower 98
Z_issquare 509455
abgrp_get_cyc 12231271
abgrp_get_gen 1765026
abgrp_get_no 406735
absfrac 46515946
absfrac_shallow 28237
addmuliu 541617
addmuliu_inplace 59564711
affc_fixlg 249622
affgr 899594
bid_get_MOD 2157259
bid_get_U 3680237
bid_get_arch 41188
bid_get_archp 2397139
bid_get_cyc 5739842
bid_get_fact 2498938
bid_get_fact2 2201580
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804695
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157985
bin_copy 471239033
bit_accuracy 3124351140
bit_accuracy_mul 3175715
bit_prec 143299368
bnf_get_clgp 5375458
bnf_get_cyc 3686600
bnf_get_fu 25859
bnf_get_fu_nocheck 289090
bnf_get_gen 1680311
bnf_get_logfu 2874770
bnf_get_nf 9866287
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367775
bnf_get_tuN 282996
bnf_get_tuU 303572
bnr_get_bid 2046095
bnr_get_bnf 3710953
bnr_get_clgp 2830229
bnr_get_cyc 2522561
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399081
bnr_get_no 277487
both_odd 124128673
cbrtr 0
cbrtr_abs 0
cgetalloc 10115
cgetc 975458
cgiv 105461835
checkell_i 5593242
closure_arity 356368621
closure_codestr 305938836
closure_get_code 28
closure_get_data 305899718
closure_get_dbg 13660
closure_get_frame 14720749
closure_get_oper 305917458
closure_get_text 37150
closure_is_variadic 45911733
col_ei 5925164
coltrunc_init 740257
const_col 9730076
const_vec 34655101
const_vecsmall 18747730
constant_coeff 1438332
cxcompotor 18212271
cxnorm 91201673
cxtofp 9080205
cxtoreal 337205
cyc_get_expo 2757560
cyclic_perm 99911
dbllog2r 92843409
degpol 5508212926
div_content 58510
divsBIL 8106569820
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997035
ell_get_a2 7106200
ell_get_a3 8814003
ell_get_a4 8536741
ell_get_a6 10370979
ell_get_b2 7370965
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11018157
ell_get_c6 13474690
ell_get_disc 16815576
ell_get_j 2126269
ell_get_type 12498983
ell_is_inf 49476116
ellff_get_a4a6 799981
ellff_get_field 2036650
ellinf 1208503
ellnf_get_bnf 119
ellnf_get_nf 2027246
equali1 1166194395
equalim1 139505851
err_get_compo 294
err_get_num 62595
gaddgs 123254010
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 245562113
gc_INT 4133358015
gc_INT_affii 11565916
gc_all 102367411
gc_leaf 1135137939
gc_slice 2205945
gc_upto 1944696117
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 761916
gdivsg 531592
gen_I 1268261
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928094
get_F2x_mod 2489618
get_F2x_var 2534343
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 83559843
get_Flx_mod 25482845
get_Flx_var 68378365
get_FlxqX_degree 317580
get_FlxqX_mod 8033
get_FlxqX_var 264435
get_FpXQX_degree 3589
get_FpXQX_mod 131148
get_FpXQX_var 51630
get_FpX_degree 6942315
get_FpX_mod 3387433
get_FpX_var 6922565
gisdouble 2996301
gmax_shallow 13510228
gmaxsg 0
gmin_shallow 877879
gminsg 0
gmulgs 23834586
gmulgu 283104681
gsubgs 1730184
gtodouble 60940906
gtofp 254468259
gtomp 22428
gtos 85855795
gtou 100679
guncloneNULL 49816134
guncloneNULL_deep 1510032
gval 6230
hash_str 2741944
hash_str_len 31637009
icopy_avma 8044860905
idealchineseinit 5427
idealred 138816
identity_ZV 8120
identity_perm 3242821
identity_zv 3267172
inf_get_sign 1453147
inv_content 0
is_bigint 571794758
is_const_t 4982468060
is_extscalar_t 6736
is_intreal_t 9585649
is_matvec_t 741263388
is_noncalc_t 88450474
is_pm1 2216275176
is_qfb_t 0
is_rational_t 5015392
is_real_t 61897670
is_recursive_t 9068324257
is_scalar_t 403326381
is_universal_constant 326462878
is_vec_t 43918278
isint1 17586799
isintm1 5711233
isintzero 2839529591
ismpzero 9585547
isonstack 8303301497
killblock 1959812
leading_coeff 171282593
leafcopy_avma 591071836
lg_increase 446548736
lgcols 352695345
lgpol 2609366275
lincombii 38267208
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 754878
matpascal 3983
matslice 16825864
mkcol 10652811
mkcol2 157001625
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33579
mkcols 40411
mkcomplex 91615736
mkerr 0
mkfrac 41639751
mkfraccopy 4999646
mkfracss 1209563
mkintmod 8061537
mkintmodu 1834
mkmat 4779890
mkmat2 33666083
mkmat22 50262428
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122328
mkmoo 108903
mkoo 1332004
mkpadic 2009
mkpolmod 3075557
mkqfb 27929064
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69646626
mkvec2 212884516
mkvec2copy 114533
mkvec2s 220381
mkvec3 123788889
mkvec3s 524441
mkvec4 10146514
mkvec4s 21
mkvec5 15186629
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131314784
mkvecsmall2 235068366
mkvecsmall3 103269442
mkvecsmall4 18687802
mkvecsmall5 1717611
modpr_get_T 13867086
modpr_get_p 1887627
modpr_get_pr 31236583
mul_content 2657551
mul_denom 10709595
mulsubii 3893893
nbits2extraprec 1458704186
nbits2ndec 228
nbits2nlong 12714790
nbits2prec 186167014
nbrows 158273589
nchar2nlong 127794951
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304830
nf_get_M 21745707
nf_get_Tr 23282
nf_get_degree 71377620
nf_get_diff 4445
nf_get_disc 463517
nf_get_index 3712023
nf_get_invzk 9774904
nf_get_pol 98121752
nf_get_r1 23466109
nf_get_r2 4154
nf_get_ramified_primes 64644
nf_get_roots 1628876
nf_get_roundG 1748515
nf_get_sign 519602
nf_get_varn 1503757
nf_get_zk 4382
nf_get_zkden 5462102
nf_get_zkprimpart 5416333
normalize_frac 17205849
odd 2120701504
pari_calloc 47609
pari_err_BUG 21
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 485600717
pari_malloc 721663727
pari_realloc 1873
pari_realloc_ip 2351664
pari_stack_alloc 1006146705
pari_stack_base 1011994910
pari_stack_delete 5897000
pari_stack_init 6357923
pari_stack_new 910851378
pari_stack_pushp 5800
perm_conj 418299
perm_inv 3747261
perm_mul 80952815
perm_sqr 728
pol0_F2x 13182742
pol0_Flx 103111967
pol1_F2x 3949400
pol1_Flx 54889085
pol_0 25875561
pol_1 3750295
pol_x 3857622
pol_xn 2249701
pol_xnall 294
polx_F2x 1073332
polx_Flx 37503530
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130186
pr_get_e 16167355
pr_get_f 26444855
pr_get_gen 12072789
pr_get_p 92761686
pr_get_tau 49774324
pr_is_inert 17224445
pr_norm 1090587
prec2lg 4471758341
prec2nbits 103977754
prec2nbits_mul 581083
prec2ndec 9778
precdbl 475640
qfb_disc 18502512
qfb_disc3 4995455
qfb_is_qfi 64497945
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8015285323
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 763905
row_i 987
rowcopy 204988
rowpermute 14757977
rowslice 79466392
rowslicepermute 233829
rowsplice 273
ser_isexactzero 10120354
shallowcopy 27896226
sqrfrac 4148093
sqrti 6611340
sqrtnr 2810430
sqrtr 80383386
sstoQ 1097313
sturm 385
submulii 31985153
submuliu 7700
submuliu_inplace 60077563
truecoef 0
trunc_safe 0
ulogint 1984989
upr_norm 346136
uutoQ 1602144
vec_append 3469008
vec_ei 1714406
vec_lengthen 18960
vec_prepend 313898
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039457
veclast 9372643
vecmodii 0
vecmoduu 49784
vecpermute 21097795
vecreverse 697305
vecreverse_inplace 2605
vecslice 657334542
vecslicepermute 2855685
vecsmall_append 4114706
vecsmall_coincidence 0
vecsmall_concat 1464543
vecsmall_copy 5369161
vecsmall_ei 584751
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043249
vecsmall_max 1164129
vecsmall_min 2352
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75754
vecsmall_to_col 7922313
vecsmall_to_vec 577021
vecsmall_to_vec_inplace 3304
vecsmallpermute 78756796
vecsmalltrunc_append 100897498
vecsmalltrunc_init 244046030
vecsplice 385016
vectrunc_append 15857793
vectrunc_append_batch 9667
vectrunc_init 11768603
zc_to_ZC 7907767
zero_F2m 0
zero_F2m_copy 845037
zero_F2v 3647639
zero_F2x 1181
zero_Flm 2830862
zero_Flm_copy 238321
zero_Flv 59725029
zero_Flx 1427350
zero_zm 0
zero_zv 37291400
zero_zx 0
zerocol 125148306
zeromat 108990
zeromatcopy 14378309
zeropadic 857138
zeropadic_shallow 17087
zeropol 12864332
zeroser 138992
zerovec 29344416
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 2182764
zv_to_ZV 568222
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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