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 30600-bbb75e9497) Lines: 1421 1535 92.6 %
Date: 2026-01-05 09:22:13 Functions: 649 707 91.8 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
F2m_clear 0
F2m_coeff 8038652
F2m_copy 200473
F2m_flip 1554224
F2m_set 798
F2v_clear 12353934
F2v_coeff 661321179
F2v_copy 4487
F2v_ei 42
F2v_flip 1554224
F2v_set 101403484
F2v_to_F2x 37932
F2xX_shift 0
F2x_clear 12353926
F2x_coeff 667961012
F2x_copy 60443562
F2x_div 1569954
F2x_equal 4660681
F2x_equal1 2873905
F2x_flip 1554224
F2x_renormalize 115356668
F2x_set 124813064
F2xqX_div 33173
F3m_coeff 3255870
F3m_copy 0
F3m_set 0
Flm_copy 6433524
Flm_row 8741394
Flv_copy 2555011
Flx_constant 333971
Flx_copy 173192936
Flx_div 1997972
Flx_div_pre 21690043
Flx_equal1 8329785
Flx_lead 978443
Flx_mulu 1105285
FlxqX_div 0
FlxqX_div_pre 165415
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694138
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581237
FpX_renormalize 144205270
Fp_add 181112373
Fp_addmul 11265298
Fp_center 77142279
Fp_center_i 17983938
Fp_div 15034590
Fp_divu 15129036
Fp_double 20882377
Fp_halve 247271
Fp_inv 23440408
Fp_invsafe 1100355
Fp_mul 200759048
Fp_muls 17780
Fp_mulu 67482814
Fp_neg 31482638
Fp_red 82328943
Fp_sqr 63596389
Fp_sub 202517067
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 571432
FqX_Fq_mul 427297
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 444665
FqX_factor 140946
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 367703
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 3106086
Fq_to_FpXQ 73652
GENbinbase 961893148
QV_isscalar 54416123
Q_abs 8062654
Q_abs_shallow 120241
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619845
RgC_gtofp 34028465
RgC_gtomp 574
RgM_dimensions 9741791
RgM_fpnorml2 22661
RgM_gtofp 8257475
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179464
RgV_gtofp 56
RgV_is_QV 140733
RgV_is_ZV 32158273
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210273
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406545
RgX_div 7000642
RgX_equal_var 26883012
RgX_fpnorml2 61495
RgX_gtofp 7144798
RgX_is_QX 399928
RgX_is_ZX 22423254
RgX_is_monomial 1331334
RgX_is_rational 68164
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479366
RgX_shift_inplace_init 479366
RgX_to_RgV 140
Rg_col_ei 1451004
Rg_to_Fq 756
ZC_hnfrem 10697438
ZM_ZV_mod 596483
ZM_hnfrem 363770
ZM_lll 7117501
ZV_ZV_mod 8131461
ZV_dvd 23485
ZV_isscalar 23674892
ZV_to_zv 3211407
ZXQ_mul 2161296
ZXQ_sqr 960436
ZX_equal1 12850
ZX_is_monic 7374317
ZX_renormalize 154977805
Z_ispower 98
Z_issquare 458712
abgrp_get_cyc 12230765
abgrp_get_gen 1765036
abgrp_get_no 354939
absfrac 46638716
absfrac_shallow 28237
addmuliu 535826
addmuliu_inplace 59638275
affc_fixlg 249624
affgr 898866
bid_get_MOD 2157245
bid_get_U 3680221
bid_get_arch 41188
bid_get_archp 2397095
bid_get_cyc 5739799
bid_get_fact 2498915
bid_get_fact2 2201565
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804652
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157970
bin_copy 496056397
bit_accuracy 3159916403
bit_accuracy_mul 3175472
bit_prec 143241104
bnf_get_clgp 5375019
bnf_get_cyc 3686155
bnf_get_fu 25859
bnf_get_fu_nocheck 289086
bnf_get_gen 1680321
bnf_get_logfu 2874773
bnf_get_nf 9863899
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367773
bnf_get_tuN 282990
bnf_get_tuU 303573
bnr_get_bid 2046081
bnr_get_bnf 3710940
bnr_get_clgp 2830204
bnr_get_cyc 2522537
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77117
bnr_get_nf 1399058
bnr_get_no 277481
both_odd 123994599
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975457
cgiv 102677353
checkell_i 5593230
closure_arity 371441445
closure_codestr 321591754
closure_get_code 0
closure_get_data 321541931
closure_get_dbg 13628
closure_get_frame 14157879
closure_get_oper 321566531
closure_get_text 37065
closure_is_variadic 44789598
col_ei 5924478
coltrunc_init 740250
const_col 9729658
const_vec 34479633
const_vecsmall 19706106
constant_coeff 1441124
cxcompotor 18210681
cxnorm 91197115
cxtofp 9079434
cxtoreal 337204
cyc_get_expo 2757548
cyclic_perm 99911
dbllog2r 92813975
degpol 5491037633
div_content 58504
divsBIL 8091404977
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997090
ell_get_a2 7106190
ell_get_a3 8814058
ell_get_a4 8536731
ell_get_a6 10370969
ell_get_b2 7371029
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11018044
ell_get_c6 13474475
ell_get_disc 16815008
ell_get_j 2126269
ell_get_type 12498745
ell_is_inf 52391878
ellff_get_a4a6 800041
ellff_get_field 2036886
ellinf 1869649
ellnf_get_bnf 119
ellnf_get_nf 2027231
equali1 1174341244
equalim1 139504964
err_get_compo 294
err_get_num 62536
gaddgs 123248593
gal_get_den 27867
gal_get_e 91
gal_get_gen 15435
gal_get_group 80387
gal_get_invvdm 27874
gal_get_mod 23758
gal_get_orders 6678
gal_get_p 6006
gal_get_pol 36316
gal_get_roots 32732
gc_GEN 255469563
gc_INT 4111308222
gc_INT_affii 8487166
gc_all 109638126
gc_leaf 1136653350
gc_slice 2204052
gc_upto 1953484890
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 761928
gdivsg 531590
gen_I 1269707
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1929118
get_F2x_mod 2499161
get_F2x_var 2534057
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82225220
get_Flx_mod 25595097
get_Flx_var 68352731
get_FlxqX_degree 317565
get_FlxqX_mod 8033
get_FlxqX_var 264420
get_FpXQX_degree 3589
get_FpXQX_mod 146583
get_FpXQX_var 51630
get_FpX_degree 6424533
get_FpX_mod 3394380
get_FpX_var 6957939
gisdouble 2996121
gmax_shallow 13510200
gmaxsg 0
gmin_shallow 877642
gminsg 0
gmulgs 22590594
gmulgu 282059384
gsubgs 1724803
gtodouble 60778340
gtofp 254282218
gtomp 22428
gtos 85855655
gtou 99541
guncloneNULL 47934651
guncloneNULL_deep 1437968
gval 6230
hash_str 2756815
hash_str_len 31544909
icopy_avma 8040039574
idealchineseinit 5427
idealred 138439
identity_ZV 8113
identity_perm 3241325
identity_zv 3265675
inf_get_sign 1452920
inv_content 0
is_bigint 563389853
is_const_t 4897356972
is_extscalar_t 6876
is_intreal_t 9584547
is_matvec_t 659594103
is_noncalc_t 85870507
is_pm1 2205107808
is_qfb_t 0
is_rational_t 5032485
is_real_t 62062458
is_recursive_t 9235100507
is_scalar_t 375657750
is_universal_constant 325781753
is_vec_t 43951824
isint1 17584752
isintm1 5710120
isintzero 2843873217
ismpzero 9584449
isonstack 8272152903
killblock 1921584
leading_coeff 170262237
leafcopy_avma 576907099
lg_increase 315686194
lgcols 351593505
lgpol 2687178365
lincombii 38230874
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 754832
matpascal 3983
matslice 16818464
mkcol 10639748
mkcol2 156879561
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33555
mkcols 40411
mkcomplex 91607257
mkerr 0
mkfrac 41639309
mkfraccopy 4999686
mkfracss 1209563
mkintmod 8092712
mkintmodu 1813
mkmat 4750955
mkmat2 33654099
mkmat22 50282713
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122274
mkmoo 108797
mkoo 1331862
mkpadic 2009
mkpolmod 3103723
mkqfb 27929620
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71110843
mkvec2 184862213
mkvec2copy 114530
mkvec2s 220251
mkvec3 117696954
mkvec3s 524441
mkvec4 10093874
mkvec4s 21
mkvec5 15185713
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131648414
mkvecsmall2 234848114
mkvecsmall3 104179799
mkvecsmall4 18654617
mkvecsmall5 1717492
modpr_get_T 13867097
modpr_get_p 1887623
modpr_get_pr 31236542
mul_content 2657088
mul_denom 10707701
mulsubii 3882442
nbits2extraprec 1457860397
nbits2ndec 228
nbits2nlong 12751485
nbits2prec 186125667
nbrows 157462056
nchar2nlong 127389106
ndec2nbits 8270
ndec2nlong 41549
ndec2prec 33279
nfV_to_scalar_or_alg 26300
nf_get_G 304887
nf_get_M 21745616
nf_get_Tr 22080
nf_get_degree 71369337
nf_get_diff 4445
nf_get_disc 463465
nf_get_index 3711380
nf_get_invzk 9767469
nf_get_pol 98107370
nf_get_r1 23466062
nf_get_r2 4154
nf_get_ramified_primes 64643
nf_get_roots 1628958
nf_get_roundG 1748200
nf_get_sign 519550
nf_get_varn 1503566
nf_get_zk 4382
nf_get_zkden 5459754
nf_get_zkprimpart 5413923
normalize_frac 17205677
odd 2089874198
pari_calloc 47720
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 84
pari_err_DIM 718
pari_err_DOMAIN 2862
pari_err_FILE 0
pari_err_FILEDESC 36
pari_err_FLAG 98
pari_err_IMPL 539
pari_err_INV 20018
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 509453273
pari_malloc 745351028
pari_realloc 1890
pari_realloc_ip 2255231
pari_stack_alloc 1019741256
pari_stack_base 1025284538
pari_stack_delete 5591891
pari_stack_init 6051369
pari_stack_new 925055797
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781906
perm_mul 80891940
perm_sqr 728
pol0_F2x 13244096
pol0_Flx 103485483
pol1_F2x 3958140
pol1_Flx 55056871
pol_0 82996527
pol_1 3755718
pol_x 3856875
pol_xn 2249293
pol_xnall 294
polx_F2x 1078182
polx_Flx 37488698
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130327
pr_get_e 16161780
pr_get_f 26442820
pr_get_gen 12071103
pr_get_p 92749573
pr_get_tau 49767805
pr_is_inert 17223814
pr_norm 1090478
prec2lg 4466661861
prec2nbits 103962530
prec2nbits_mul 581167
prec2ndec 9778
precdbl 475364
qfb_disc 18502525
qfb_disc3 4995742
qfb_is_qfi 62321706
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8000367222
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 763879
row_i 987
rowcopy 204988
rowpermute 14705442
rowslice 79312127
rowslicepermute 185149
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27631317
sqrfrac 4148186
sqrti 6610138
sqrtnr 2810131
sqrtr 80367805
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60130764
truecoef 0
trunc_safe 0
ulogint 1722066
upr_norm 346136
uutoQ 1600198
vec_append 3464992
vec_ei 1713856
vec_lengthen 18960
vec_prepend 313997
vec_setconst 0
vec_shorten 11556
vec_to_vecsmall 4036619
veclast 9372714
vecmodii 0
vecmoduu 49784
vecpermute 20548249
vecreverse 697277
vecreverse_inplace 2605
vecslice 655931848
vecslicepermute 2690479
vecsmall_append 4099591
vecsmall_coincidence 0
vecsmall_concat 1464220
vecsmall_copy 4403938
vecsmall_ei 584700
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043256
vecsmall_max 1164063
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75640
vecsmall_to_col 7838793
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78696527
vecsmalltrunc_append 100770307
vecsmalltrunc_init 188883430
vecsplice 384907
vectrunc_append 15853314
vectrunc_append_batch 9667
vectrunc_init 11767566
zc_to_ZC 7824611
zero_F2m 0
zero_F2m_copy 845041
zero_F2v 3647668
zero_F2x 1350
zero_Flm 2829294
zero_Flm_copy 238228
zero_Flv 59673607
zero_Flx 1426611
zero_zm 0
zero_zv 36733967
zero_zx 0
zerocol 122326656
zeromat 109091
zeromatcopy 14249374
zeropadic 855625
zeropadic_shallow 17023
zeropol 42353901
zeroser 138908
zerovec 28453539
zerovec_block 29654
zm_copy 0
zm_row 0
zm_to_zxV 0
zm_transpose 266
znstar_get_N 38655073
znstar_get_U 176107
znstar_get_Ui 46788
znstar_get_conreycyc 7979693
znstar_get_conreygen 3290176
znstar_get_cyc 262088
znstar_get_faN 7331711
znstar_get_gen 16150
znstar_get_no 14
znstar_get_pe 2869063
zv_copy 2183791
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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