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 30772-246cd0a587) Lines: 1424 1535 92.8 %
Date: 2026-03-29 09:27:34 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 8356348
F2m_copy 200651
F2m_flip 1553554
F2m_set 798
F2v_clear 12360590
F2v_coeff 664423092
F2v_copy 4487
F2v_ei 42
F2v_flip 1553554
F2v_set 104112976
F2v_to_F2x 37844
F2xX_shift 0
F2x_clear 12360585
F2x_coeff 670966277
F2x_copy 63826459
F2x_div 1557393
F2x_equal 4133725
F2x_equal1 2873718
F2x_flip 1553554
F2x_renormalize 126967579
F2x_set 129764481
F2xqX_div 33173
F3m_coeff 3255546
F3m_copy 0
F3m_set 0
Flm_copy 6434598
Flm_row 8743565
Flv_copy 2059095
Flx_constant 1091329
Flx_copy 175816452
Flx_div 1999812
Flx_div_pre 21712405
Flx_equal1 8196164
Flx_lead 1069110
Flx_mulu 1105375
FlxqX_div 0
FlxqX_div_pre 165414
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4692523
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582024
FpX_renormalize 147018634
Fp_add 183172458
Fp_addmul 11182830
Fp_center 77303277
Fp_center_i 18041865
Fp_div 15034056
Fp_divu 15128543
Fp_double 20667047
Fp_halve 247271
Fp_inv 23435505
Fp_invsafe 1097239
Fp_mul 203004896
Fp_muls 17780
Fp_mulu 65341747
Fp_neg 32667618
Fp_red 82930329
Fp_sqr 63523628
Fp_sub 200886053
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 572206
FqX_Fq_mul 427290
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38569
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 445014
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 367934
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 3105967
Fq_to_FpXQ 73652
GENbinbase 918982953
QV_isscalar 54418775
Q_abs 8060916
Q_abs_shallow 120240
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619940
RgC_gtofp 34031356
RgC_gtomp 574
RgM_dimensions 9954672
RgM_fpnorml2 22655
RgM_gtofp 8257566
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22235294
RgV_gtofp 56
RgV_is_QV 142000
RgV_is_ZV 32095983
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210270
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102487021
RgX_div 6997260
RgX_equal_var 26880493
RgX_fpnorml2 61606
RgX_gtofp 7163984
RgX_is_QX 399945
RgX_is_ZX 22315751
RgX_is_monomial 1320055
RgX_is_rational 68158
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
RgX_to_RgV 140
Rg_col_ei 1451129
Rg_to_Fq 756
ZC_hnfrem 10697428
ZM_ZV_mod 610707
ZM_hnfrem 401392
ZM_lll 7117670
ZV_ZV_mod 8147159
ZV_dvd 23485
ZV_isscalar 23675261
ZV_to_zv 3211716
ZXQ_mul 2166256
ZXQ_sqr 960592
ZX_equal1 10488
ZX_is_monic 7319858
ZX_renormalize 157496088
Z_ispower 98
Z_issquare 509454
abgrp_get_cyc 12231211
abgrp_get_gen 1765040
abgrp_get_no 406728
absfrac 46991181
absfrac_shallow 28237
addmuliu 541563
addmuliu_inplace 59622437
affc_fixlg 249621
affgr 899594
bid_get_MOD 2157237
bid_get_U 3680215
bid_get_arch 41188
bid_get_archp 2397105
bid_get_cyc 5739801
bid_get_fact 2498931
bid_get_fact2 2201561
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804650
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157967
bin_copy 472871320
bit_accuracy 3141062679
bit_accuracy_mul 3175715
bit_prec 143386503
bnf_get_clgp 5375480
bnf_get_cyc 3686612
bnf_get_fu 25858
bnf_get_fu_nocheck 289093
bnf_get_gen 1680326
bnf_get_logfu 2874763
bnf_get_nf 9866336
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367754
bnf_get_tuN 283002
bnf_get_tuU 303584
bnr_get_bid 2046092
bnr_get_bnf 3710934
bnr_get_clgp 2830226
bnr_get_cyc 2522554
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399071
bnr_get_no 277484
both_odd 124085937
cbrtr 0
cbrtr_abs 0
cgetalloc 10136
cgetc 975458
cgiv 105469019
checkell_i 8104050
closure_arity 356440577
closure_codestr 306017279
closure_get_code 28
closure_get_data 305970197
closure_get_dbg 13660
closure_get_frame 14734268
closure_get_oper 305995415
closure_get_text 37150
closure_is_variadic 45928966
col_ei 5925197
coltrunc_init 740257
const_col 9730121
const_vec 34676235
const_vecsmall 18860690
constant_coeff 1441252
cxcompotor 18237181
cxnorm 94096144
cxtofp 9092705
cxtoreal 337207
cyc_get_expo 2757555
cyclic_perm 99932
dbllog2r 94330797
degpol 5517262950
div_content 58511
divsBIL 8240463466
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 17049179
ell_get_a2 11108721
ell_get_a3 12863746
ell_get_a4 10325139
ell_get_a6 10371099
ell_get_b2 7371392
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11019084
ell_get_c6 13474783
ell_get_disc 16816493
ell_get_j 2126269
ell_get_type 14946338
ell_is_inf 50208210
ellff_get_a4a6 551445
ellff_get_field 1790572
ellinf 913890
ellnf_get_bnf 119
ellnf_get_nf 2027238
equali1 1169284615
equalim1 139567889
err_get_compo 294
err_get_num 62595
gaddgs 123270518
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80415
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 246739375
gc_INT 4134762778
gc_INT_affii 11571191
gc_all 102550686
gc_leaf 1161050409
gc_slice 2211078
gc_upto 1971496042
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 761919
gdivsg 559710
gen_I 1268865
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928468
get_F2x_mod 3307643
get_F2x_var 2168573
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82176627
get_Flx_mod 25499655
get_Flx_var 68248138
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 6969348
get_FpX_mod 3387855
get_FpX_var 6952231
gisdouble 2995428
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 898198
gminsg 0
gmulgs 23801863
gmulgu 283360013
gsubgs 1731947
gtodouble 66246079
gtofp 257168432
gtomp 22428
gtos 85865495
gtou 100704
guncloneNULL 49828502
guncloneNULL_deep 1508535
gval 6230
hash_str 2757673
hash_str_len 31655921
icopy_avma 8050100561
idealchineseinit 5427
idealred 138809
identity_ZV 8120
identity_perm 3243031
identity_zv 3267392
inf_get_sign 1453188
inv_content 0
is_bigint 574329262
is_const_t 5003607629
is_extscalar_t 6904
is_intreal_t 9702661
is_matvec_t 742795714
is_noncalc_t 88515093
is_pm1 2216189739
is_qfb_t 0
is_rational_t 5017636
is_real_t 61900623
is_recursive_t 9104677420
is_scalar_t 403470887
is_universal_constant 326624867
is_vec_t 43957873
isint1 17987115
isintm1 6086482
isintzero 2848228993
ismpzero 9702544
isonstack 8356878477
killblock 1957626
leading_coeff 169336822
leafcopy_avma 593922424
lg_increase 443801507
lgcols 352667993
lgpol 2621140160
lincombii 38256697
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 755019
matpascal 4683
matslice 16823802
mkcol 10653435
mkcol2 156950788
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33586
mkcols 40411
mkcomplex 92003386
mkerr 0
mkfrac 41921993
mkfraccopy 4999525
mkfracss 1209563
mkintmod 8066650
mkintmodu 1834
mkmat 4780011
mkmat2 33666277
mkmat22 50253693
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122313
mkmoo 108884
mkoo 1332078
mkpadic 2009
mkpolmod 3075559
mkqfb 27928629
mkquad 69118
mkrfrac 698437
mkrfraccopy 14
mkvec 69358254
mkvec2 214200748
mkvec2copy 114527
mkvec2s 220729
mkvec3 119730348
mkvec3s 524441
mkvec4 10150159
mkvec4s 21
mkvec5 15187650
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140232336
mkvecsmall2 256972313
mkvecsmall3 103257911
mkvecsmall4 18668736
mkvecsmall5 1718723
modpr_get_T 13867056
modpr_get_p 1887627
modpr_get_pr 31236507
mul_content 2657429
mul_denom 10709789
mulsubii 3892411
nbits2extraprec 1497933743
nbits2ndec 228
nbits2nlong 12749727
nbits2prec 188991038
nbrows 158264076
nchar2nlong 127918656
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304818
nf_get_M 21745885
nf_get_Tr 23280
nf_get_degree 71376467
nf_get_diff 4445
nf_get_disc 463518
nf_get_index 3712020
nf_get_invzk 9774801
nf_get_pol 98120148
nf_get_r1 23466381
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628860
nf_get_roundG 1748495
nf_get_sign 519599
nf_get_varn 1503763
nf_get_zk 4382
nf_get_zkden 5462195
nf_get_zkprimpart 5416359
normalize_frac 17311153
odd 2123450148
pari_calloc 47770
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 487227667
pari_malloc 723333630
pari_realloc 1880
pari_realloc_ip 2354167
pari_stack_alloc 1006277436
pari_stack_base 1012111584
pari_stack_delete 5875796
pari_stack_init 6368732
pari_stack_new 910965533
pari_stack_pushp 5821
perm_conj 418299
perm_inv 3747316
perm_mul 80950504
perm_sqr 728
pol0_F2x 17300248
pol0_Flx 111586776
pol1_F2x 4767948
pol1_Flx 55729992
pol_0 27123745
pol_1 3752526
pol_x 3860540
pol_xn 2252833
pol_xnall 294
polx_F2x 1073824
polx_Flx 37498057
polx_zx 0
polxn_Flx 371
powIs 596435
powii 43130028
pr_get_e 16167288
pr_get_f 26444350
pr_get_gen 12072551
pr_get_p 92760479
pr_get_tau 49773397
pr_is_inert 17224314
pr_norm 1090519
prec2lg 4563341271
prec2nbits 106949078
prec2nbits_mul 581097
prec2ndec 9778
precdbl 476362
qfb_disc 18502588
qfb_disc3 4995206
qfb_is_qfi 64522608
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8148914969
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 763872
row_i 987
rowcopy 204988
rowpermute 14758493
rowslice 79445344
rowslicepermute 234505
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27896196
sqrfrac 4151072
sqrti 6612671
sqrtnr 2810627
sqrtr 86933681
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60126802
truecoef 0
trunc_safe 0
ulogint 2083209
upr_norm 346135
uutoQ 1602144
vec_append 3468977
vec_ei 1714712
vec_lengthen 18960
vec_prepend 313924
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039428
veclast 9374222
vecmodii 0
vecmoduu 49784
vecpermute 21109824
vecreverse 697305
vecreverse_inplace 2605
vecslice 657284912
vecslicepermute 2858172
vecsmall_append 4114702
vecsmall_coincidence 0
vecsmall_concat 1464622
vecsmall_copy 7341077
vecsmall_ei 585151
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043241
vecsmall_max 1177349
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75749
vecsmall_to_col 7925061
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78754167
vecsmalltrunc_append 100810626
vecsmalltrunc_init 241838633
vecsplice 385017
vectrunc_append 15859713
vectrunc_append_batch 9667
vectrunc_init 11766769
zc_to_ZC 7910516
zero_F2m 0
zero_F2m_copy 845262
zero_F2v 3656455
zero_F2x 1181
zero_Flm 2830725
zero_Flm_copy 238308
zero_Flv 61972357
zero_Flx 3255874
zero_zm 0
zero_zv 39494819
zero_zx 0
zerocol 125149582
zeromat 108993
zeromatcopy 14377704
zeropadic 857634
zeropadic_shallow 17150
zeropol 12867519
zeroser 138992
zerovec 29348303
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 1687829
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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