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 30703-cd958ce78c) Lines: 1422 1535 92.6 %
Date: 2026-02-23 09:22:43 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 8154611
F2m_copy 200424
F2m_flip 1553635
F2m_set 798
F2v_clear 12352807
F2v_coeff 661427110
F2v_copy 4487
F2v_ei 42
F2v_flip 1553635
F2v_set 101428224
F2v_to_F2x 37757
F2xX_shift 0
F2x_clear 12352820
F2x_coeff 667937749
F2x_copy 59083082
F2x_div 1558316
F2x_equal 4614342
F2x_equal1 2873856
F2x_flip 1553635
F2x_renormalize 111649378
F2x_set 123092111
F2xqX_div 33173
F3m_coeff 3255870
F3m_copy 0
F3m_set 0
Flm_copy 6433568
Flm_row 8741578
Flv_copy 2555069
Flx_constant 334005
Flx_copy 173106605
Flx_div 1998012
Flx_div_pre 21688996
Flx_equal1 8195560
Flx_lead 978739
Flx_mulu 1105438
FlxqX_div 0
FlxqX_div_pre 165412
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694589
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849903
FpXY_Fq_evaly 20587
FpX_div 5581244
FpX_renormalize 145820998
Fp_add 181498724
Fp_addmul 11341955
Fp_center 77367660
Fp_center_i 18029209
Fp_div 15035667
Fp_divu 15130123
Fp_double 21097134
Fp_halve 247271
Fp_inv 23437287
Fp_invsafe 1098033
Fp_mul 200951878
Fp_muls 17780
Fp_mulu 68907036
Fp_neg 31472517
Fp_red 82193175
Fp_sqr 64551184
Fp_sub 203364328
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 571670
FqX_Fq_mul 427298
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38566
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444767
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 367710
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 3106627
Fq_to_FpXQ 73652
GENbinbase 914723850
QV_isscalar 54416230
Q_abs 8062823
Q_abs_shallow 120237
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619854
RgC_gtofp 34031697
RgC_gtomp 574
RgM_dimensions 9741571
RgM_fpnorml2 22661
RgM_gtofp 8257777
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179252
RgV_gtofp 56
RgV_is_QV 140735
RgV_is_ZV 32160199
RgV_isin 110151
RgV_isin_i 110151
RgV_isscalar 1210271
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103403532
RgX_div 6998010
RgX_equal_var 26883017
RgX_fpnorml2 61600
RgX_gtofp 7145660
RgX_is_QX 399938
RgX_is_ZX 22423187
RgX_is_monomial 1331372
RgX_is_rational 68163
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479401
RgX_shift_inplace_init 479401
RgX_to_RgV 140
Rg_col_ei 1451031
Rg_to_Fq 756
ZC_hnfrem 10697424
ZM_ZV_mod 596613
ZM_hnfrem 363804
ZM_lll 7117606
ZV_ZV_mod 8131902
ZV_dvd 23485
ZV_isscalar 23675475
ZV_to_zv 3211716
ZXQ_mul 2161121
ZXQ_sqr 960356
ZX_equal1 10488
ZX_is_monic 7374287
ZX_renormalize 155008057
Z_ispower 98
Z_issquare 457655
abgrp_get_cyc 12230857
abgrp_get_gen 1765024
abgrp_get_no 354935
absfrac 46540325
absfrac_shallow 28237
addmuliu 541536
addmuliu_inplace 59650954
affc_fixlg 249623
affgr 899594
bid_get_MOD 2157262
bid_get_U 3680243
bid_get_arch 41188
bid_get_archp 2397156
bid_get_cyc 5739855
bid_get_fact 2498979
bid_get_fact2 2201582
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804709
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157995
bin_copy 470745304
bit_accuracy 3081730483
bit_accuracy_mul 3175730
bit_prec 143257386
bnf_get_clgp 5375006
bnf_get_cyc 3686151
bnf_get_fu 25859
bnf_get_fu_nocheck 289099
bnf_get_gen 1680310
bnf_get_logfu 2874772
bnf_get_nf 9865192
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367775
bnf_get_tuN 282998
bnf_get_tuU 303586
bnr_get_bid 2046101
bnr_get_bnf 3710954
bnr_get_clgp 2830254
bnr_get_cyc 2522578
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77118
bnr_get_nf 1399078
bnr_get_no 277487
both_odd 124082147
cbrtr 0
cbrtr_abs 0
cgetalloc 10187
cgetc 975455
cgiv 102672230
checkell_i 5593262
closure_arity 372309622
closure_codestr 321887134
closure_get_code 28
closure_get_data 321857864
closure_get_dbg 13642
closure_get_frame 14717075
closure_get_oper 321875627
closure_get_text 37114
closure_is_variadic 45906033
col_ei 5924570
coltrunc_init 740257
const_col 9729656
const_vec 34565631
const_vecsmall 19706910
constant_coeff 1441451
cxcompotor 18211629
cxnorm 91201828
cxtofp 9079896
cxtoreal 337202
cyc_get_expo 2757575
cyclic_perm 99911
dbllog2r 92821114
degpol 5492200892
div_content 58504
divsBIL 8074151554
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997112
ell_get_a2 7106191
ell_get_a3 8814080
ell_get_a4 8536732
ell_get_a6 10370970
ell_get_b2 7371051
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11018251
ell_get_c6 13474614
ell_get_disc 16815719
ell_get_j 2126269
ell_get_type 12498828
ell_is_inf 49393753
ellff_get_a4a6 800058
ellff_get_field 2036919
ellinf 1208324
ellnf_get_bnf 119
ellnf_get_nf 2027257
equali1 1153353315
equalim1 139505441
err_get_compo 294
err_get_num 62572
gaddgs 123248652
gal_get_den 27867
gal_get_e 91
gal_get_gen 15435
gal_get_group 80386
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 233240618
gc_INT 4124598349
gc_INT_affii 8489809
gc_all 101974020
gc_leaf 1133813286
gc_slice 2204525
gc_upto 1957457262
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 761910
gdivsg 531590
gen_I 1269758
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928892
get_F2x_mod 2489692
get_F2x_var 2534128
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82210850
get_Flx_mod 25493062
get_Flx_var 68357017
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 6968761
get_FpX_mod 3392018
get_FpX_var 6958216
gisdouble 2996444
gmax_shallow 13510200
gmaxsg 0
gmin_shallow 877840
gminsg 0
gmulgs 22617521
gmulgu 283104681
gsubgs 1724813
gtodouble 60784841
gtofp 254340548
gtomp 22428
gtos 85855713
gtou 100667
guncloneNULL 49648010
guncloneNULL_deep 1512944
gval 6230
hash_str 2774481
hash_str_len 31635736
icopy_avma 8006213304
idealchineseinit 5427
idealred 138437
identity_ZV 8113
identity_perm 3242191
identity_zv 3266542
inf_get_sign 1452912
inv_content 0
is_bigint 563937112
is_const_t 4900472501
is_extscalar_t 6876
is_intreal_t 9584644
is_matvec_t 659235811
is_noncalc_t 85780236
is_pm1 2204785253
is_qfb_t 0
is_rational_t 5032671
is_real_t 62059907
is_recursive_t 9164909904
is_scalar_t 375680710
is_universal_constant 326476426
is_vec_t 43955827
isint1 17586594
isintm1 5710452
isintzero 2845485116
ismpzero 9584545
isonstack 8287571419
killblock 1960564
leading_coeff 171834299
leafcopy_avma 563016421
lg_increase 317439416
lgcols 351653377
lgpol 2672975174
lincombii 38225525
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 754857
matpascal 3983
matslice 16824932
mkcol 10639735
mkcol2 156851216
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33559
mkcols 40411
mkcomplex 91617933
mkerr 0
mkfrac 41646190
mkfraccopy 4999636
mkfracss 1209563
mkintmod 8071082
mkintmodu 1834
mkmat 4750814
mkmat2 33654398
mkmat22 50254754
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122284
mkmoo 108804
mkoo 1331864
mkpadic 2009
mkpolmod 3103722
mkqfb 27929620
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 70609808
mkvec2 185345758
mkvec2copy 114528
mkvec2s 220247
mkvec3 119787227
mkvec3s 524441
mkvec4 10094900
mkvec4s 21
mkvec5 15185812
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131216674
mkvecsmall2 234797608
mkvecsmall3 103238783
mkvecsmall4 18680191
mkvecsmall5 1717518
modpr_get_T 13867165
modpr_get_p 1887627
modpr_get_pr 31236720
mul_content 2657277
mul_denom 10707504
mulsubii 3881768
nbits2extraprec 1458504322
nbits2ndec 228
nbits2nlong 12711899
nbits2prec 186142657
nbrows 157470761
nchar2nlong 127583391
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304899
nf_get_M 21746202
nf_get_Tr 22083
nf_get_degree 71370286
nf_get_diff 4445
nf_get_disc 463471
nf_get_index 3711392
nf_get_invzk 9767553
nf_get_pol 98110107
nf_get_r1 23466587
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628969
nf_get_roundG 1748198
nf_get_sign 519551
nf_get_varn 1503783
nf_get_zk 4382
nf_get_zkden 5459768
nf_get_zkprimpart 5413965
normalize_frac 17206110
odd 2090879280
pari_calloc 47839
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 484257873
pari_malloc 720162177
pari_realloc 1897
pari_realloc_ip 2350044
pari_stack_alloc 1022004896
pari_stack_base 1027871905
pari_stack_delete 5898933
pari_stack_init 6353522
pari_stack_new 926712264
pari_stack_pushp 5872
perm_conj 418299
perm_inv 2781966
perm_mul 80921013
perm_sqr 728
pol0_F2x 13178484
pol0_Flx 103054473
pol1_F2x 3947246
pol1_Flx 54885331
pol_0 82782945
pol_1 3753526
pol_x 3857519
pol_xn 2249572
pol_xnall 294
polx_F2x 1073707
polx_Flx 37485350
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130327
pr_get_e 16162149
pr_get_f 26443182
pr_get_gen 12071211
pr_get_p 92750896
pr_get_tau 49768422
pr_is_inert 17224104
pr_norm 1090534
prec2lg 4471859064
prec2nbits 103971068
prec2nbits_mul 581165
prec2ndec 9778
precdbl 475413
qfb_disc 18502529
qfb_disc3 4995736
qfb_is_qfi 53643705
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 7983576389
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 14706472
rowslice 79359860
rowslicepermute 185053
rowsplice 273
ser_isexactzero 10120368
shallowcopy 27632009
sqrfrac 4148220
sqrti 6610324
sqrtnr 2810234
sqrtr 80377374
sstoQ 1097313
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60143774
truecoef 0
trunc_safe 0
ulogint 1717132
upr_norm 346133
uutoQ 1602144
vec_append 3464632
vec_ei 1713899
vec_lengthen 18960
vec_prepend 313999
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036942
veclast 9372757
vecmodii 0
vecmoduu 49784
vecpermute 20549673
vecreverse 697305
vecreverse_inplace 2605
vecslice 656981268
vecslicepermute 2691739
vecsmall_append 4114674
vecsmall_coincidence 0
vecsmall_concat 1464154
vecsmall_copy 4403793
vecsmall_ei 584682
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1164121
vecsmall_min 2352
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75641
vecsmall_to_col 7838767
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78725803
vecsmalltrunc_append 100857919
vecsmalltrunc_init 190007436
vecsplice 384922
vectrunc_append 15854077
vectrunc_append_batch 9667
vectrunc_init 11767200
zc_to_ZC 7824585
zero_F2m 0
zero_F2m_copy 845010
zero_F2v 3647545
zero_F2x 1350
zero_Flm 2830564
zero_Flm_copy 238230
zero_Flv 58406120
zero_Flx 1426769
zero_zm 0
zero_zv 35975592
zero_zx 0
zerocol 122333541
zeromat 109101
zeromatcopy 14249664
zeropadic 857283
zeropadic_shallow 17150
zeropol 42353393
zeroser 138992
zerovec 29292323
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 2183809
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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