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 30802-b11b770002) Lines: 1423 1535 92.7 %
Date: 2026-04-12 09:26:48 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 8359278
F2m_copy 200660
F2m_flip 1554414
F2m_set 798
F2v_clear 12362075
F2v_coeff 664439875
F2v_copy 4487
F2v_ei 42
F2v_flip 1554414
F2v_set 104115319
F2v_to_F2x 38019
F2xX_shift 0
F2x_clear 12362063
F2x_coeff 671027742
F2x_copy 64591065
F2x_div 1571365
F2x_equal 4190972
F2x_equal1 2873976
F2x_flip 1554414
F2x_renormalize 127885475
F2x_set 130004275
F2xqX_div 33173
F3m_coeff 3255554
F3m_copy 0
F3m_set 0
Flm_copy 6434485
Flm_row 8743328
Flv_copy 2059154
Flx_constant 1091727
Flx_copy 175760924
Flx_div 1999813
Flx_div_pre 21706052
Flx_equal1 8196280
Flx_lead 1068817
Flx_mulu 1105429
FlxqX_div 0
FlxqX_div_pre 165409
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4692303
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5581988
FpX_renormalize 147140402
Fp_add 183369591
Fp_addmul 11271753
Fp_center 77291720
Fp_center_i 18022121
Fp_div 15034157
Fp_divu 15128640
Fp_double 20851644
Fp_halve 247271
Fp_inv 23435893
Fp_invsafe 1097243
Fp_mul 203587483
Fp_muls 17780
Fp_mulu 68323100
Fp_neg 32669228
Fp_red 82929779
Fp_sqr 63621137
Fp_sub 201086859
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 572203
FqX_Fq_mul 427288
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 445017
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 367937
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 3106362
Fq_to_FpXQ 73652
GENbinbase 919496920
QV_isscalar 54419296
Q_abs 8077899
Q_abs_shallow 120238
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619948
RgC_gtofp 34030507
RgC_gtomp 574
RgM_dimensions 9955088
RgM_fpnorml2 22655
RgM_gtofp 8257115
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22235049
RgV_gtofp 56
RgV_is_QV 141997
RgV_is_ZV 32095989
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210272
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102502779
RgX_div 6997260
RgX_equal_var 26880480
RgX_fpnorml2 61608
RgX_gtofp 7164230
RgX_is_QX 399930
RgX_is_ZX 22315607
RgX_is_monomial 1325397
RgX_is_rational 68157
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
RgX_to_RgV 140
Rg_col_ei 1451124
Rg_to_Fq 756
ZC_hnfrem 10697274
ZM_ZV_mod 610654
ZM_hnfrem 401390
ZM_lll 7117351
ZV_ZV_mod 8147091
ZV_dvd 23485
ZV_isscalar 23675034
ZV_to_zv 3211716
ZXQ_mul 2166224
ZXQ_sqr 960618
ZX_equal1 10488
ZX_is_monic 7319781
ZX_renormalize 157458103
Z_ispower 98
Z_issquare 509457
abgrp_get_cyc 12231202
abgrp_get_gen 1765034
abgrp_get_no 406738
absfrac 47653299
absfrac_shallow 28237
addmuliu 541608
addmuliu_inplace 59622174
affc_fixlg 249621
affgr 899594
bid_get_MOD 2157248
bid_get_U 3680224
bid_get_arch 41188
bid_get_archp 2397118
bid_get_cyc 5739816
bid_get_fact 2498930
bid_get_fact2 2201569
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804663
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157974
bin_copy 473127102
bit_accuracy 3145601652
bit_accuracy_mul 3175715
bit_prec 143383737
bnf_get_clgp 5375467
bnf_get_cyc 3686603
bnf_get_fu 25859
bnf_get_fu_nocheck 289089
bnf_get_gen 1680321
bnf_get_logfu 2874758
bnf_get_nf 9866304
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367776
bnf_get_tuN 282995
bnf_get_tuU 303578
bnr_get_bid 2046083
bnr_get_bnf 3710940
bnr_get_clgp 2830222
bnr_get_cyc 2522548
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399071
bnr_get_no 277491
both_odd 124273070
cbrtr 0
cbrtr_abs 0
cgetalloc 10136
cgetc 975457
cgiv 105474542
checkell_i 8103989
closure_arity 356616514
closure_codestr 306185842
closure_get_code 28
closure_get_data 306140037
closure_get_dbg 13660
closure_get_frame 14734940
closure_get_oper 306163889
closure_get_text 37150
closure_is_variadic 45933854
col_ei 5925153
coltrunc_init 740257
const_col 9730132
const_vec 34670917
const_vecsmall 18860639
constant_coeff 1441251
cxcompotor 18238459
cxnorm 94096418
cxtofp 9093387
cxtoreal 337206
cyc_get_expo 2757544
cyclic_perm 99932
dbllog2r 94329683
degpol 5534114558
div_content 58510
divsBIL 8240028532
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 17049203
ell_get_a2 11108726
ell_get_a3 12863770
ell_get_a4 10325144
ell_get_a6 10371104
ell_get_b2 7371411
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11018776
ell_get_c6 13474477
ell_get_disc 16815952
ell_get_j 2126269
ell_get_type 14946070
ell_is_inf 50221600
ellff_get_a4a6 551472
ellff_get_field 1790630
ellinf 913902
ellnf_get_bnf 119
ellnf_get_nf 2027236
equali1 1171001983
equalim1 139567978
err_get_compo 294
err_get_num 62595
gaddgs 123270533
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 246917954
gc_INT 4137655099
gc_INT_affii 11572552
gc_all 102551397
gc_leaf 1166487329
gc_slice 2211230
gc_upto 1972488968
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 559708
gen_I 1268854
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928597
get_F2x_mod 3307773
get_F2x_var 2168726
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 83576232
get_Flx_mod 25496079
get_Flx_var 68233775
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 6969299
get_FpX_mod 3387862
get_FpX_var 6952020
gisdouble 2995158
gmax_shallow 13510228
gmaxsg 0
gmin_shallow 898155
gminsg 0
gmulgs 23812351
gmulgu 283360013
gsubgs 1731937
gtodouble 66250562
gtofp 257175605
gtomp 22428
gtos 85865797
gtou 100719
guncloneNULL 49828973
guncloneNULL_deep 1508553
gval 6230
hash_str 2765234
hash_str_len 31657962
icopy_avma 8054997057
idealchineseinit 5427
idealred 138812
identity_ZV 8120
identity_perm 3243229
identity_zv 3267592
inf_get_sign 1453310
inv_content 0
is_bigint 574344691
is_const_t 5003614439
is_extscalar_t 6904
is_intreal_t 9702370
is_matvec_t 743851304
is_noncalc_t 88514373
is_pm1 2217837411
is_qfb_t 0
is_rational_t 5017611
is_real_t 61900630
is_recursive_t 9110687548
is_scalar_t 403921415
is_universal_constant 326523763
is_vec_t 44029058
isint1 17994169
isintm1 6086589
isintzero 2847543356
ismpzero 9702269
isonstack 8366181359
killblock 1957196
leading_coeff 169333810
leafcopy_avma 593074388
lg_increase 437513991
lgcols 352757718
lgpol 2632627365
lincombii 38257816
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 755014
matpascal 4683
matslice 16823574
mkcol 10653321
mkcol2 157033867
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33583
mkcols 40411
mkcomplex 92005191
mkerr 0
mkfrac 42485873
mkfraccopy 5000193
mkfracss 1209563
mkintmod 8066937
mkintmodu 1834
mkmat 4780241
mkmat2 33665586
mkmat22 50253681
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122292
mkmoo 108903
mkoo 1332183
mkpadic 2009
mkpolmod 3075503
mkqfb 27927932
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69347926
mkvec2 214171819
mkvec2copy 114531
mkvec2s 220727
mkvec3 124013109
mkvec3s 524441
mkvec4 10150200
mkvec4s 21
mkvec5 15187567
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140321411
mkvecsmall2 256975351
mkvecsmall3 103249340
mkvecsmall4 18657065
mkvecsmall5 1718749
modpr_get_T 13867119
modpr_get_p 1887626
modpr_get_pr 31236561
mul_content 2657298
mul_denom 10753210
mulsubii 3893272
nbits2extraprec 1497730108
nbits2ndec 228
nbits2nlong 12752735
nbits2prec 188992343
nbrows 158349500
nchar2nlong 127919218
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304814
nf_get_M 21745623
nf_get_Tr 23280
nf_get_degree 71375397
nf_get_diff 4445
nf_get_disc 463503
nf_get_index 3711981
nf_get_invzk 9774609
nf_get_pol 98117984
nf_get_r1 23466211
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628841
nf_get_roundG 1748485
nf_get_sign 519602
nf_get_varn 1503748
nf_get_zk 4382
nf_get_zkden 5462187
nf_get_zkprimpart 5416271
normalize_frac 17557742
odd 2124791392
pari_calloc 47819
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 487488577
pari_malloc 723635249
pari_realloc 1880
pari_realloc_ip 2359138
pari_stack_alloc 1006558442
pari_stack_base 1012381942
pari_stack_delete 5882822
pari_stack_init 6378839
pari_stack_new 911185248
pari_stack_pushp 5821
perm_conj 418299
perm_inv 3747332
perm_mul 80951771
perm_sqr 728
pol0_F2x 17354239
pol0_Flx 111629306
pol1_F2x 4768979
pol1_Flx 55717578
pol_0 27189601
pol_1 3752505
pol_x 3864019
pol_xn 2252837
pol_xnall 294
polx_F2x 1079233
polx_Flx 37490419
polx_zx 0
polxn_Flx 371
powIs 596435
powii 43130035
pr_get_e 16167141
pr_get_f 26443834
pr_get_gen 12072274
pr_get_p 92759014
pr_get_tau 49772721
pr_is_inert 17224034
pr_norm 1090497
prec2lg 4562203007
prec2nbits 106944512
prec2nbits_mul 581095
prec2ndec 9778
precdbl 476374
qfb_disc 18502506
qfb_disc3 4994899
qfb_is_qfi 64534554
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8149247735
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 763897
row_i 987
rowcopy 204988
rowpermute 14758749
rowslice 79450067
rowslicepermute 234587
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27896886
sqrfrac 4195846
sqrti 6612778
sqrtnr 2810539
sqrtr 86929326
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60126138
truecoef 0
trunc_safe 0
ulogint 2094299
upr_norm 346136
uutoQ 1602144
vec_append 3468946
vec_ei 1714762
vec_lengthen 18960
vec_prepend 313923
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039424
veclast 9374228
vecmodii 0
vecmoduu 49784
vecpermute 21110563
vecreverse 697305
vecreverse_inplace 2605
vecslice 657260862
vecslicepermute 2858654
vecsmall_append 4114718
vecsmall_coincidence 0
vecsmall_concat 1464650
vecsmall_copy 7341080
vecsmall_ei 585168
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043217
vecsmall_max 1177238
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75755
vecsmall_to_col 7925175
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78755454
vecsmalltrunc_append 100866345
vecsmalltrunc_init 241739071
vecsplice 384991
vectrunc_append 15857618
vectrunc_append_batch 9667
vectrunc_init 11769205
zc_to_ZC 7910628
zero_F2m 0
zero_F2m_copy 845279
zero_F2v 3656632
zero_F2x 1181
zero_Flm 2830907
zero_Flm_copy 238308
zero_Flv 61989524
zero_Flx 3255542
zero_zm 0
zero_zv 39510143
zero_zx 0
zerocol 125147661
zeromat 108978
zeromatcopy 14377030
zeropadic 857632
zeropadic_shallow 17150
zeropol 12889199
zeroser 138992
zerovec 29348481
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 1687892
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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