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 30862-ea47bd413c) Lines: 1421 1535 92.6 %
Date: 2026-05-05 09:26:54 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 8359618
F2m_copy 200668
F2m_flip 1554549
F2m_set 798
F2v_clear 12362358
F2v_coeff 664441717
F2v_copy 4487
F2v_ei 42
F2v_flip 1554549
F2v_set 104115697
F2v_to_F2x 38087
F2xX_shift 0
F2x_clear 12362358
F2x_coeff 670990679
F2x_copy 64600762
F2x_div 1572349
F2x_equal 4193324
F2x_equal1 2873490
F2x_flip 1554549
F2x_renormalize 127835390
F2x_set 129963149
F2xqX_div 33173
F3m_coeff 3255555
F3m_copy 0
F3m_set 0
Flm_copy 6435914
Flm_row 8743581
Flv_copy 2058926
Flx_constant 1091732
Flx_copy 175945176
Flx_div 1999841
Flx_div_pre 21723746
Flx_equal1 8200340
Flx_lead 1068452
Flx_mulu 1105461
FlxqX_div 0
FlxqX_div_pre 165414
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4688690
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5583766
FpX_renormalize 147093686
Fp_add 183554632
Fp_addmul 11300433
Fp_center 77303120
Fp_center_i 18055564
Fp_div 15034073
Fp_divu 15128554
Fp_double 20978300
Fp_halve 247271
Fp_inv 23416732
Fp_invsafe 1097240
Fp_mul 203912828
Fp_muls 17780
Fp_mulu 65584896
Fp_neg 32668749
Fp_red 82930894
Fp_sqr 64201573
Fp_sub 201712376
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 576303
FqX_Fq_mul 427295
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 447455
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 368758
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 3106350
Fq_to_FpXQ 73652
GENbinbase 920306018
QV_isscalar 54428485
Q_abs 8125639
Q_abs_shallow 120237
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619955
RgC_gtofp 34034987
RgC_gtomp 574
RgM_dimensions 9954948
RgM_fpnorml2 22787
RgM_gtofp 8258019
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22234896
RgV_gtofp 56
RgV_is_QV 142049
RgV_is_ZV 32100567
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1211814
RgXQX_div 1904
RgXQX_rem 127915
RgX_coeff 2908792
RgX_copy 102878777
RgX_div 6998920
RgX_equal_var 27139599
RgX_fpnorml2 63071
RgX_gtofp 7166474
RgX_is_QX 400068
RgX_is_ZX 22395466
RgX_is_monomial 1328360
RgX_is_rational 68291
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479449
RgX_shift_inplace_init 479449
RgX_to_RgV 140
Rg_col_ei 1451469
Rg_to_Fq 756
ZC_hnfrem 10697411
ZM_ZV_mod 610695
ZM_hnfrem 401391
ZM_lll 7139290
ZV_ZV_mod 8147213
ZV_dvd 23485
ZV_isscalar 23679263
ZV_to_zv 3211715
ZXQ_mul 2166550
ZXQ_sqr 961547
ZX_equal1 10488
ZX_is_monic 7670811
ZX_renormalize 157603235
Z_ispower 98
Z_issquare 509456
abgrp_get_cyc 12234646
abgrp_get_gen 1766595
abgrp_get_no 406746
absfrac 47976876
absfrac_shallow 28237
addmuliu 541562
addmuliu_inplace 59555933
affc_fixlg 250431
affgr 795161
bid_get_MOD 2157259
bid_get_U 3680239
bid_get_arch 41188
bid_get_archp 2397123
bid_get_cyc 5739828
bid_get_fact 2498932
bid_get_fact2 2201579
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804683
bid_get_ideal 72849
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157990
bin_copy 473537594
bit_accuracy 3147597456
bit_accuracy_mul 3175844
bit_prec 143415713
bnf_get_clgp 5380420
bnf_get_cyc 3689978
bnf_get_fu 25859
bnf_get_fu_nocheck 289092
bnf_get_gen 1681881
bnf_get_logfu 2877853
bnf_get_nf 9875241
bnf_get_no 8386
bnf_get_reg 648
bnf_get_sunits 1369336
bnf_get_tuN 283012
bnf_get_tuU 303593
bnr_get_bid 2046100
bnr_get_bnf 3710962
bnr_get_clgp 2830262
bnr_get_cyc 2522581
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77125
bnr_get_nf 1399098
bnr_get_no 277486
both_odd 123375508
cbrtr 0
cbrtr_abs 0
cgetalloc 10157
cgetc 976273
cgiv 105508642
checkell_i 8103719
closure_arity 356728613
closure_codestr 306286598
closure_get_code 28
closure_get_data 306246518
closure_get_dbg 13660
closure_get_frame 14695287
closure_get_oper 306268476
closure_get_text 37150
closure_is_variadic 45955304
col_ei 5927382
coltrunc_init 740257
const_col 9730242
const_vec 34655519
const_vecsmall 18862708
constant_coeff 1445640
cxcompotor 18280945
cxnorm 95127648
cxtofp 9114624
cxtoreal 338020
cyc_get_expo 2757548
cyclic_perm 99932
dbllog2r 94380801
degpol 5514176668
div_content 58510
divsBIL 8249980304
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 17049202
ell_get_a2 11108721
ell_get_a3 12863769
ell_get_a4 10325139
ell_get_a6 10371099
ell_get_b2 7371414
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11018705
ell_get_c6 13474438
ell_get_disc 16815872
ell_get_j 2126269
ell_get_type 14945228
ell_is_inf 50195450
ellff_get_a4a6 551468
ellff_get_field 1790617
ellinf 913728
ellnf_get_bnf 119
ellnf_get_nf 2027262
equali1 1172338810
equalim1 139581573
err_get_compo 294
err_get_num 62602
gaddgs 123273236
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80414
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 247584976
gc_INT 4140108100
gc_INT_affii 11577202
gc_all 102471622
gc_leaf 1161574196
gc_slice 2211538
gc_upto 1975710919
gchar_copy_precs 1470
gchar_get_DLdata 192479
gchar_get_S 38371
gchar_get_U 0
gchar_get_Ui 11096
gchar_get_basis 34731
gchar_get_bnf 207685
gchar_get_cyc 16535
gchar_get_evalprec 4011
gchar_get_hnf 0
gchar_get_loccyc 52520
gchar_get_m0 3823
gchar_get_mod 8225
gchar_get_modP 4095
gchar_get_nalg 2296
gchar_get_nc 38876
gchar_get_nf 247942
gchar_get_nfprec 13854
gchar_get_nfree 322
gchar_get_nm 2108
gchar_get_ns 38371
gchar_get_ntors 322
gchar_get_prec 19427
gchar_get_r1 17683
gchar_get_r2 623
gchar_get_sfu 1996
gchar_get_u0 5002
gchar_get_zm 286343
gchar_set_HUUi 637
gchar_set_basis 1827
gchar_set_cyc 1827
gchar_set_evalprec 2086
gchar_set_m0 1190
gchar_set_nalg 637
gchar_set_nf 2363
gchar_set_nfprec 3466
gchar_set_nfree 637
gchar_set_ntors 637
gchar_set_prec 1470
gchar_set_u0 2142
gcmpgs 761930
gdivsg 561956
gen_I 1269144
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928542
get_F2x_mod 3307546
get_F2x_var 2168638
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82197502
get_Flx_mod 25509832
get_Flx_var 68291776
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 6969295
get_FpX_mod 3387853
get_FpX_var 6952258
gisdouble 2995949
gmax_shallow 13510228
gmaxsg 0
gmin_shallow 901144
gminsg 0
gmulgs 23871666
gmulgu 283377954
gsubgs 1731738
gtodouble 66203472
gtofp 257192115
gtomp 22428
gtos 85880057
gtou 100669
guncloneNULL 49242574
guncloneNULL_deep 1507366
gval 6391
hash_str 2782958
hash_str_len 31624852
icopy_avma 8056498659
idealchineseinit 5427
idealred 139132
identity_ZV 8120
identity_perm 3243496
identity_zv 3267859
inf_get_sign 1453300
inv_content 0
is_bigint 574907425
is_const_t 5010637649
is_extscalar_t 6904
is_intreal_t 9716435
is_matvec_t 744427694
is_noncalc_t 88525008
is_pm1 2218422643
is_qfb_t 0
is_rational_t 5019533
is_real_t 61906222
is_recursive_t 9130506523
is_scalar_t 404105101
is_universal_constant 326507956
is_vec_t 44030041
isint1 18136449
isintm1 6222430
isintzero 2866282346
ismpzero 9716317
isonstack 8367256744
killblock 1957291
leading_coeff 169748377
leafcopy_avma 595248995
lg_increase 438230776
lgcols 352819116
lgpol 2627156394
lincombii 38271663
locs_get_Lgenfil 1288
locs_get_Lsprk 195755
locs_get_cyc 54144
locs_get_famod 1288
locs_get_m_infty 211534
locs_get_mod 8225
logint 757050
matpascal 4935
matslice 16825348
mkcol 10661516
mkcol2 157106775
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33579
mkcols 40411
mkcomplex 92892875
mkerr 0
mkfrac 42760340
mkfraccopy 5010419
mkfracss 1209563
mkintmod 8066870
mkintmodu 1834
mkmat 4783117
mkmat2 33664065
mkmat22 50277955
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122324
mkmoo 108934
mkoo 1332143
mkpadic 2009
mkpolmod 3262544
mkqfb 27934173
mkquad 69118
mkrfrac 698726
mkrfraccopy 14
mkvec 68990947
mkvec2 213968450
mkvec2copy 114546
mkvec2s 220779
mkvec3 119754322
mkvec3s 524441
mkvec4 10157024
mkvec4s 21
mkvec5 15189822
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140581080
mkvecsmall2 257028118
mkvecsmall3 103277193
mkvecsmall4 18662456
mkvecsmall5 1718417
modpr_get_T 13867136
modpr_get_p 1887626
modpr_get_pr 31236633
mul_content 2659212
mul_denom 10755140
mulsubii 3893445
nbits2extraprec 1498800621
nbits2ndec 228
nbits2nlong 12768851
nbits2prec 189085442
nbrows 158368517
nchar2nlong 127862736
ndec2nbits 8270
ndec2nlong 41885
ndec2prec 33615
nfV_to_scalar_or_alg 26300
nf_get_G 304818
nf_get_M 21750508
nf_get_Tr 23349
nf_get_degree 71393396
nf_get_diff 4445
nf_get_disc 464460
nf_get_index 3715914
nf_get_invzk 9778581
nf_get_pol 98152264
nf_get_r1 23473791
nf_get_r2 4154
nf_get_ramified_primes 64644
nf_get_roots 1632090
nf_get_roundG 1749948
nf_get_sign 522481
nf_get_varn 1503770
nf_get_zk 4382
nf_get_zkden 5463840
nf_get_zkprimpart 5418020
normalize_frac 17574877
odd 2123479769
pari_calloc 48127
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
pari_err_DIM 718
pari_err_DOMAIN 2876
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 487890075
pari_malloc 723384401
pari_realloc 1887
pari_realloc_ip 2350278
pari_stack_alloc 1006176520
pari_stack_base 1012029828
pari_stack_delete 5876584
pari_stack_init 6351483
pari_stack_new 910816107
pari_stack_pushp 5842
perm_conj 418299
perm_inv 3747470
perm_mul 80954497
perm_sqr 728
pol0_F2x 17359374
pol0_Flx 111733175
pol1_F2x 4768131
pol1_Flx 55767443
pol_0 27280933
pol_1 3753763
pol_x 3866484
pol_xn 2254003
pol_xnall 294
polx_F2x 1079417
polx_Flx 37515735
polx_zx 0
polxn_Flx 371
powIs 620095
powii 43129309
pr_get_e 16167846
pr_get_f 26448980
pr_get_gen 12076199
pr_get_p 92765403
pr_get_tau 49777578
pr_is_inert 17228029
pr_norm 1090518
prec2lg 4576645512
prec2nbits 107069167
prec2nbits_mul 581908
prec2ndec 9778
precdbl 476413
qfb_disc 18502495
qfb_disc3 4998044
qfb_is_qfi 64523506
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8158460486
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 763903
row_i 987
rowcopy 204988
rowpermute 14762893
rowslice 79451710
rowslicepermute 234291
rowsplice 273
ser_isexactzero 11871118
shallowcopy 27900432
sqrfrac 4224631
sqrti 6614824
sqrtnr 2810720
sqrtr 87152650
sstoQ 1097313
sturm 385
submulii 31985175
submuliu 7700
submuliu_inplace 60064835
truecoef 0
trunc_safe 0
ulogint 2078193
upr_norm 347920
uutoQ 1602256
vec_append 3469083
vec_ei 1714854
vec_lengthen 18960
vec_prepend 313916
vec_setconst 0
vec_shorten 11564
vec_to_vecsmall 4041849
veclast 9374352
vecmodii 0
vecmoduu 49784
vecpermute 21118364
vecreverse 697305
vecreverse_inplace 2612
vecslice 657217251
vecslicepermute 2858077
vecsmall_append 4114744
vecsmall_coincidence 0
vecsmall_concat 1464644
vecsmall_copy 7341116
vecsmall_ei 585138
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043252
vecsmall_max 1178341
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75752
vecsmall_to_col 7928247
vecsmall_to_vec 578148
vecsmall_to_vec_inplace 3304
vecsmallpermute 78758098
vecsmalltrunc_append 100882566
vecsmalltrunc_init 241076309
vecsplice 385267
vectrunc_append 15858031
vectrunc_append_batch 9667
vectrunc_init 11767727
zc_to_ZC 7913702
zero_F2m 0
zero_F2m_copy 845302
zero_F2v 3656728
zero_F2x 1181
zero_Flm 2831143
zero_Flm_copy 238328
zero_Flv 61993596
zero_Flx 3255754
zero_zm 0
zero_zv 39515043
zero_zx 0
zerocol 125198114
zeromat 108993
zeromatcopy 14379466
zeropadic 857678
zeropadic_shallow 17150
zeropol 12924481
zeroser 139013
zerovec 29349326
zerovec_block 29654
zm_copy 0
zm_row 0
zm_to_zxV 0
zm_transpose 266
znstar_get_N 38658755
znstar_get_U 176107
znstar_get_Ui 46788
znstar_get_conreycyc 7982136
znstar_get_conreygen 3290533
znstar_get_cyc 262088
znstar_get_faN 7334854
znstar_get_gen 16150
znstar_get_no 14
znstar_get_pe 2869070
zv_copy 1687658
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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