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 30759-17b423fb9b) Lines: 1422 1535 92.6 %
Date: 2026-03-21 09:26:11 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 8360891
F2m_copy 200662
F2m_flip 1553561
F2m_set 798
F2v_clear 12360655
F2v_coeff 664428411
F2v_copy 4487
F2v_ei 42
F2v_flip 1553561
F2v_set 104113894
F2v_to_F2x 37879
F2xX_shift 0
F2x_clear 12360649
F2x_coeff 671055547
F2x_copy 59079324
F2x_div 1557472
F2x_equal 4607408
F2x_equal1 2873598
F2x_flip 1553561
F2x_renormalize 111752234
F2x_set 125845666
F2xqX_div 33173
F3m_coeff 3255557
F3m_copy 0
F3m_set 0
Flm_copy 6434467
Flm_row 8743102
Flv_copy 2555433
Flx_constant 1091534
Flx_copy 173813803
Flx_div 1999806
Flx_div_pre 21710217
Flx_equal1 8195600
Flx_lead 1067719
Flx_mulu 1105481
FlxqX_div 0
FlxqX_div_pre 165412
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4693038
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582026
FpX_renormalize 145871282
Fp_add 181103920
Fp_addmul 11235645
Fp_center 77381032
Fp_center_i 18031430
Fp_div 15034621
Fp_divu 15129183
Fp_double 20857482
Fp_halve 247271
Fp_inv 23436150
Fp_invsafe 1097236
Fp_mul 201035579
Fp_muls 17780
Fp_mulu 71353073
Fp_neg 31480247
Fp_red 82931035
Fp_sqr 64241633
Fp_sub 202603083
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 572204
FqX_Fq_mul 427290
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38565
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 445019
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 367936
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 3106477
Fq_to_FpXQ 73652
GENbinbase 919493497
QV_isscalar 54420615
Q_abs 8060914
Q_abs_shallow 120219
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619950
RgC_gtofp 34032978
RgC_gtomp 574
RgM_dimensions 9954838
RgM_fpnorml2 22655
RgM_gtofp 8257590
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22235741
RgV_gtofp 56
RgV_is_QV 141997
RgV_is_ZV 32095990
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210271
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102485492
RgX_div 6997065
RgX_equal_var 26880182
RgX_fpnorml2 61607
RgX_gtofp 7164139
RgX_is_QX 399945
RgX_is_ZX 22315641
RgX_is_monomial 1320038
RgX_is_rational 68159
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
RgX_to_RgV 140
Rg_col_ei 1451133
Rg_to_Fq 756
ZC_hnfrem 10697510
ZM_ZV_mod 610716
ZM_hnfrem 401385
ZM_lll 7117710
ZV_ZV_mod 8147193
ZV_dvd 23485
ZV_isscalar 23675388
ZV_to_zv 3211715
ZXQ_mul 2166284
ZXQ_sqr 960612
ZX_equal1 10488
ZX_is_monic 7319901
ZX_renormalize 155191107
Z_ispower 98
Z_issquare 509448
abgrp_get_cyc 12231255
abgrp_get_gen 1765016
abgrp_get_no 406731
absfrac 46991166
absfrac_shallow 28237
addmuliu 541644
addmuliu_inplace 59562167
affc_fixlg 249622
affgr 899594
bid_get_MOD 2157253
bid_get_U 3680230
bid_get_arch 41187
bid_get_archp 2397117
bid_get_cyc 5739833
bid_get_fact 2498951
bid_get_fact2 2201576
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804681
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157978
bin_copy 473128198
bit_accuracy 3128626978
bit_accuracy_mul 3175715
bit_prec 143402186
bnf_get_clgp 5375451
bnf_get_cyc 3686604
bnf_get_fu 25859
bnf_get_fu_nocheck 289093
bnf_get_gen 1680303
bnf_get_logfu 2874751
bnf_get_nf 9866277
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367771
bnf_get_tuN 283001
bnf_get_tuU 303582
bnr_get_bid 2046095
bnr_get_bnf 3710947
bnr_get_clgp 2830250
bnr_get_cyc 2522569
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77118
bnr_get_nf 1399071
bnr_get_no 277491
both_odd 124164101
cbrtr 0
cbrtr_abs 0
cgetalloc 10136
cgetc 975456
cgiv 105481538
checkell_i 5593744
closure_arity 356487578
closure_codestr 306037868
closure_get_code 28
closure_get_data 306005081
closure_get_dbg 13660
closure_get_frame 14734953
closure_get_oper 306026397
closure_get_text 37150
closure_is_variadic 45931073
col_ei 5925326
coltrunc_init 740257
const_col 9730090
const_vec 34677679
const_vecsmall 18861247
constant_coeff 1441277
cxcompotor 18237355
cxnorm 94062404
cxtofp 9092770
cxtoreal 337204
cyc_get_expo 2757560
cyclic_perm 99932
dbllog2r 94328876
degpol 5533955729
div_content 58512
divsBIL 8232526467
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997580
ell_get_a2 7106329
ell_get_a3 8814548
ell_get_a4 8536870
ell_get_a6 10371108
ell_get_b2 7371380
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11019098
ell_get_c6 13474850
ell_get_disc 16816781
ell_get_j 2126269
ell_get_type 12499870
ell_is_inf 49413246
ellff_get_a4a6 800527
ellff_get_field 2038581
ellinf 1208497
ellnf_get_bnf 119
ellnf_get_nf 2027252
equali1 1169392752
equalim1 139568094
err_get_compo 294
err_get_num 62595
gaddgs 123270538
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 246998544
gc_INT 4136520204
gc_INT_affii 11586304
gc_all 102551618
gc_leaf 1148481730
gc_slice 2211220
gc_upto 1956784784
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 761923
gdivsg 559711
gen_I 1268854
gener_Fq_local 29945
gequalgs 29176
get_F2x_degree 1928593
get_F2x_mod 2490680
get_F2x_var 2536893
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 83564436
get_Flx_mod 25501572
get_Flx_var 68383346
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 6969461
get_FpX_mod 3387871
get_FpX_var 6954701
gisdouble 2996164
gmax_shallow 13510228
gmaxsg 0
gmin_shallow 898218
gminsg 0
gmulgs 23871074
gmulgu 283360013
gsubgs 1731932
gtodouble 66247060
gtofp 257178315
gtomp 22428
gtos 85865498
gtou 100700
guncloneNULL 49831147
guncloneNULL_deep 1510530
gval 6230
hash_str 2757652
hash_str_len 31655249
icopy_avma 8051318092
idealchineseinit 5427
idealred 138811
identity_ZV 8120
identity_perm 3243205
identity_zv 3267569
inf_get_sign 1453181
inv_content 0
is_bigint 574384692
is_const_t 5006410525
is_extscalar_t 6876
is_intreal_t 9702841
is_matvec_t 742856333
is_noncalc_t 88498715
is_pm1 2217744713
is_qfb_t 0
is_rational_t 5017656
is_real_t 61899891
is_recursive_t 9102743906
is_scalar_t 403468142
is_universal_constant 326557373
is_vec_t 43953948
isint1 17987108
isintm1 6086494
isintzero 2849210750
ismpzero 9702743
isonstack 8332385535
killblock 1959194
leading_coeff 169336183
leafcopy_avma 594948848
lg_increase 443369482
lgcols 352693815
lgpol 2597257542
lincombii 38262662
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 16825166
mkcol 10653536
mkcol2 156992150
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33582
mkcols 40411
mkcomplex 91995910
mkerr 0
mkfrac 41927064
mkfraccopy 4999668
mkfracss 1209563
mkintmod 8065642
mkintmodu 1834
mkmat 4780046
mkmat2 33666405
mkmat22 50260166
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122322
mkmoo 108897
mkoo 1332042
mkpadic 2009
mkpolmod 3075567
mkqfb 27928546
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69693569
mkvec2 212744910
mkvec2copy 114529
mkvec2s 220727
mkvec3 123902106
mkvec3s 524441
mkvec4 10150244
mkvec4s 21
mkvec5 15187660
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131790589
mkvecsmall2 256223089
mkvecsmall3 103266847
mkvecsmall4 18684297
mkvecsmall5 1718721
modpr_get_T 13867118
modpr_get_p 1887626
modpr_get_pr 31236608
mul_content 2657600
mul_denom 10709706
mulsubii 3893081
nbits2extraprec 1498202037
nbits2ndec 228
nbits2nlong 12723942
nbits2prec 189004859
nbrows 158273821
nchar2nlong 127920824
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304886
nf_get_M 21745902
nf_get_Tr 23281
nf_get_degree 71378027
nf_get_diff 4445
nf_get_disc 463519
nf_get_index 3712016
nf_get_invzk 9774804
nf_get_pol 98122960
nf_get_r1 23466303
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628906
nf_get_roundG 1748567
nf_get_sign 519599
nf_get_varn 1503767
nf_get_zk 4382
nf_get_zkden 5462133
nf_get_zkprimpart 5416120
normalize_frac 17311512
odd 2124596425
pari_calloc 47756
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 487490422
pari_malloc 723581941
pari_realloc 1880
pari_realloc_ip 2357956
pari_stack_alloc 1006351132
pari_stack_base 1012180695
pari_stack_delete 5889934
pari_stack_init 6375834
pari_stack_new 911012198
pari_stack_pushp 5821
perm_conj 418299
perm_inv 3747290
perm_mul 80953315
perm_sqr 728
pol0_F2x 13183205
pol0_Flx 103146025
pol1_F2x 3952226
pol1_Flx 54912482
pol_0 26065148
pol_1 3752579
pol_x 3860482
pol_xn 2252838
pol_xnall 294
polx_F2x 1073823
polx_Flx 37498565
polx_zx 0
polxn_Flx 371
powIs 588203
powii 43130205
pr_get_e 16167579
pr_get_f 26444827
pr_get_gen 12072700
pr_get_p 92761880
pr_get_tau 49774117
pr_is_inert 17224627
pr_norm 1090611
prec2lg 4566754956
prec2nbits 106950539
prec2nbits_mul 581094
prec2ndec 9778
precdbl 476366
qfb_disc 18502541
qfb_disc3 4995202
qfb_is_qfi 64519459
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8141793084
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 763896
row_i 987
rowcopy 204988
rowpermute 14758784
rowslice 79466204
rowslicepermute 234825
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27897865
sqrfrac 4151009
sqrti 6612745
sqrtnr 2810747
sqrtr 86882409
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60074797
truecoef 0
trunc_safe 0
ulogint 2079877
upr_norm 346136
uutoQ 1602144
vec_append 3468974
vec_ei 1714760
vec_lengthen 18960
vec_prepend 313924
vec_setconst 0
vec_shorten 11556
vec_to_vecsmall 4039424
veclast 9374234
vecmodii 0
vecmoduu 49784
vecpermute 21112784
vecreverse 697305
vecreverse_inplace 2605
vecslice 657449220
vecslicepermute 2859548
vecsmall_append 4114679
vecsmall_coincidence 0
vecsmall_concat 1464520
vecsmall_copy 5369894
vecsmall_ei 585118
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043084
vecsmall_max 1177453
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75751
vecsmall_to_col 7925601
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78757092
vecsmalltrunc_append 100866633
vecsmalltrunc_init 242688987
vecsplice 385000
vectrunc_append 15857927
vectrunc_append_batch 9667
vectrunc_init 11767599
zc_to_ZC 7911056
zero_F2m 0
zero_F2m_copy 845274
zero_F2v 3656476
zero_F2x 1181
zero_Flm 2830913
zero_Flm_copy 238309
zero_Flv 59747183
zero_Flx 1427001
zero_zm 0
zero_zv 37303455
zero_zx 0
zerocol 125155775
zeromat 109024
zeromatcopy 14377923
zeropadic 857666
zeropadic_shallow 17150
zeropol 12867502
zeroser 138992
zerovec 29348327
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 2184167
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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