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 30764-6b81f1f3fa) Lines: 1423 1535 92.7 %
Date: 2026-03-23 09:27:26 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 8360146
F2m_copy 200662
F2m_flip 1554826
F2m_set 798
F2v_clear 12362871
F2v_coeff 664445961
F2v_copy 4487
F2v_ei 42
F2v_flip 1554826
F2v_set 104116263
F2v_to_F2x 38106
F2xX_shift 0
F2x_clear 12362880
F2x_coeff 671032586
F2x_copy 59792113
F2x_div 1574241
F2x_equal 4673030
F2x_equal1 2873790
F2x_flip 1554826
F2x_renormalize 112603201
F2x_set 126022940
F2xqX_div 33173
F3m_coeff 3255607
F3m_copy 0
F3m_set 0
Flm_copy 6434662
Flm_row 8743643
Flv_copy 2555463
Flx_constant 1091539
Flx_copy 173812786
Flx_div 1999854
Flx_div_pre 21708937
Flx_equal1 8195800
Flx_lead 1067986
Flx_mulu 1105473
FlxqX_div 0
FlxqX_div_pre 165417
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4692782
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582076
FpX_renormalize 145858329
Fp_add 181369749
Fp_addmul 11304713
Fp_center 77385996
Fp_center_i 18036245
Fp_div 15034661
Fp_divu 15129179
Fp_double 20994237
Fp_halve 247271
Fp_inv 23436349
Fp_invsafe 1097237
Fp_mul 201156022
Fp_muls 17780
Fp_mulu 68381203
Fp_neg 31477731
Fp_red 82930284
Fp_sqr 64805703
Fp_sub 203202317
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 572187
FqX_Fq_mul 427287
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38564
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 445013
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 3106510
Fq_to_FpXQ 73652
GENbinbase 919500768
QV_isscalar 54420785
Q_abs 8061047
Q_abs_shallow 120228
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619950
RgC_gtofp 34034421
RgC_gtomp 574
RgM_dimensions 9955015
RgM_fpnorml2 22654
RgM_gtofp 8257971
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22235383
RgV_gtofp 56
RgV_is_QV 142000
RgV_is_ZV 32095990
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210268
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102485843
RgX_div 6997065
RgX_equal_var 26880199
RgX_fpnorml2 61607
RgX_gtofp 7163823
RgX_is_QX 399941
RgX_is_ZX 22315772
RgX_is_monomial 1319950
RgX_is_rational 68156
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479435
RgX_shift_inplace_init 479435
RgX_to_RgV 140
Rg_col_ei 1451068
Rg_to_Fq 756
ZC_hnfrem 10697537
ZM_ZV_mod 610725
ZM_hnfrem 401385
ZM_lll 7117856
ZV_ZV_mod 8147240
ZV_dvd 23485
ZV_isscalar 23675404
ZV_to_zv 3211716
ZXQ_mul 2166221
ZXQ_sqr 960522
ZX_equal1 10488
ZX_is_monic 7319891
ZX_renormalize 155208688
Z_ispower 98
Z_issquare 509453
abgrp_get_cyc 12231270
abgrp_get_gen 1765022
abgrp_get_no 406734
absfrac 46991384
absfrac_shallow 28237
addmuliu 541599
addmuliu_inplace 59556308
affc_fixlg 249623
affgr 899594
bid_get_MOD 2157257
bid_get_U 3680238
bid_get_arch 41188
bid_get_archp 2397144
bid_get_cyc 5739845
bid_get_fact 2498942
bid_get_fact2 2201577
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804699
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157990
bin_copy 473131263
bit_accuracy 3132109755
bit_accuracy_mul 3175715
bit_prec 143399772
bnf_get_clgp 5375449
bnf_get_cyc 3686598
bnf_get_fu 25859
bnf_get_fu_nocheck 289094
bnf_get_gen 1680310
bnf_get_logfu 2874764
bnf_get_nf 9866308
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367772
bnf_get_tuN 283002
bnf_get_tuU 303586
bnr_get_bid 2046100
bnr_get_bnf 3710945
bnr_get_clgp 2830221
bnr_get_cyc 2522555
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399078
bnr_get_no 277490
both_odd 124143979
cbrtr 0
cbrtr_abs 0
cgetalloc 10136
cgetc 975456
cgiv 105491074
checkell_i 5593758
closure_arity 356372895
closure_codestr 305917559
closure_get_code 28
closure_get_data 305890915
closure_get_dbg 13660
closure_get_frame 14734944
closure_get_oper 305907277
closure_get_text 37150
closure_is_variadic 45930954
col_ei 5925294
coltrunc_init 740257
const_col 9730046
const_vec 34679014
const_vecsmall 18860759
constant_coeff 1441256
cxcompotor 18239239
cxnorm 94096974
cxtofp 9093612
cxtoreal 337204
cyc_get_expo 2757521
cyclic_perm 99932
dbllog2r 94333062
degpol 5513136189
div_content 58511
divsBIL 8235858878
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997593
ell_get_a2 7106324
ell_get_a3 8814561
ell_get_a4 8536865
ell_get_a6 10371103
ell_get_b2 7371399
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11018877
ell_get_c6 13474554
ell_get_disc 16816421
ell_get_j 2126269
ell_get_type 12499892
ell_is_inf 49409041
ellff_get_a4a6 800538
ellff_get_field 2038582
ellinf 1208497
ellnf_get_bnf 119
ellnf_get_nf 2027252
equali1 1169400940
equalim1 139567925
err_get_compo 294
err_get_num 62596
gaddgs 123270544
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 246997478
gc_INT 4136237175
gc_INT_affii 11582601
gc_all 102550614
gc_leaf 1142067465
gc_slice 2210970
gc_upto 1956889361
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 761906
gdivsg 559711
gen_I 1268878
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928621
get_F2x_mod 2490744
get_F2x_var 2536883
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82017947
get_Flx_mod 25502985
get_Flx_var 68387887
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 6969439
get_FpX_mod 3387869
get_FpX_var 6954172
gisdouble 2995760
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 898237
gminsg 0
gmulgs 23860272
gmulgu 283360013
gsubgs 1731936
gtodouble 66248536
gtofp 257177916
gtomp 22428
gtos 85865504
gtou 100673
guncloneNULL 49834457
guncloneNULL_deep 1513377
gval 6230
hash_str 2757660
hash_str_len 31655221
icopy_avma 8051459725
idealchineseinit 5427
idealred 138810
identity_ZV 8120
identity_perm 3243289
identity_zv 3267651
inf_get_sign 1453133
inv_content 0
is_bigint 574390372
is_const_t 5006732852
is_extscalar_t 6876
is_intreal_t 9702659
is_matvec_t 742776907
is_noncalc_t 88499662
is_pm1 2216254553
is_qfb_t 0
is_rational_t 5017626
is_real_t 61899892
is_recursive_t 9103385247
is_scalar_t 403468699
is_universal_constant 326524744
is_vec_t 43941693
isint1 17987172
isintm1 6086541
isintzero 2849050184
ismpzero 9702562
isonstack 8325677997
killblock 1960449
leading_coeff 169337635
leafcopy_avma 594571682
lg_increase 434767773
lgcols 352698363
lgpol 2590666695
lincombii 38277807
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 755011
matpascal 4683
matslice 16826007
mkcol 10653504
mkcol2 156985370
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33582
mkcols 40411
mkcomplex 92013162
mkerr 0
mkfrac 41926891
mkfraccopy 4999705
mkfracss 1209563
mkintmod 8065919
mkintmodu 1834
mkmat 4780148
mkmat2 33667334
mkmat22 50259354
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122310
mkmoo 108902
mkoo 1331987
mkpadic 2009
mkpolmod 3075582
mkqfb 27928823
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69680294
mkvec2 211068070
mkvec2copy 114532
mkvec2s 220728
mkvec3 119239947
mkvec3s 524441
mkvec4 10150217
mkvec4s 21
mkvec5 15187623
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131850961
mkvecsmall2 256237739
mkvecsmall3 103270661
mkvecsmall4 18693681
mkvecsmall5 1718722
modpr_get_T 13867106
modpr_get_p 1887627
modpr_get_pr 31236601
mul_content 2657542
mul_denom 10709806
mulsubii 3893225
nbits2extraprec 1498429152
nbits2ndec 228
nbits2nlong 12723848
nbits2prec 189008213
nbrows 158273491
nchar2nlong 127918670
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304768
nf_get_M 21745894
nf_get_Tr 23280
nf_get_degree 71376690
nf_get_diff 4445
nf_get_disc 463513
nf_get_index 3711987
nf_get_invzk 9774978
nf_get_pol 98121005
nf_get_r1 23466295
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628794
nf_get_roundG 1748453
nf_get_sign 519600
nf_get_varn 1503769
nf_get_zk 4382
nf_get_zkden 5462049
nf_get_zkprimpart 5416239
normalize_frac 17311773
odd 2123779698
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 487499929
pari_malloc 723597222
pari_realloc 1880
pari_realloc_ip 2358121
pari_stack_alloc 1006272873
pari_stack_base 1012154218
pari_stack_delete 5899962
pari_stack_init 6375043
pari_stack_new 910966102
pari_stack_pushp 5821
perm_conj 418299
perm_inv 3747405
perm_mul 80955603
perm_sqr 728
pol0_F2x 13241553
pol0_Flx 103207916
pol1_F2x 3951936
pol1_Flx 54916328
pol_0 26065170
pol_1 3752517
pol_x 3860447
pol_xn 2252832
pol_xnall 294
polx_F2x 1080225
polx_Flx 37501175
polx_zx 0
polxn_Flx 371
powIs 596435
powii 43129982
pr_get_e 16167134
pr_get_f 26444352
pr_get_gen 12072541
pr_get_p 92760739
pr_get_tau 49773085
pr_is_inert 17224288
pr_norm 1090521
prec2lg 4565627838
prec2nbits 106956676
prec2nbits_mul 581096
prec2ndec 9778
precdbl 476370
qfb_disc 18502592
qfb_disc3 4995311
qfb_is_qfi 64525495
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8144580276
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 763899
row_i 987
rowcopy 204988
rowpermute 14758837
rowslice 79463800
rowslicepermute 234461
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27897824
sqrfrac 4150873
sqrti 6612776
sqrtnr 2810622
sqrtr 86936275
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60062641
truecoef 0
trunc_safe 0
ulogint 2064068
upr_norm 346135
uutoQ 1602144
vec_append 3469035
vec_ei 1714747
vec_lengthen 18960
vec_prepend 313919
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039464
veclast 9374232
vecmodii 0
vecmoduu 49784
vecpermute 21110503
vecreverse 697305
vecreverse_inplace 2605
vecslice 657465673
vecslicepermute 2858914
vecsmall_append 4114732
vecsmall_coincidence 0
vecsmall_concat 1464659
vecsmall_copy 5369837
vecsmall_ei 585083
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043257
vecsmall_max 1177309
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75754
vecsmall_to_col 7925256
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78759452
vecsmalltrunc_append 100840396
vecsmalltrunc_init 239586664
vecsplice 385005
vectrunc_append 15859213
vectrunc_append_batch 9667
vectrunc_init 11767437
zc_to_ZC 7910689
zero_F2m 0
zero_F2m_copy 845299
zero_F2v 3656735
zero_F2x 1181
zero_Flm 2831037
zero_Flm_copy 238312
zero_Flv 59760964
zero_Flx 1427126
zero_zm 0
zero_zv 37318221
zero_zx 0
zerocol 125156262
zeromat 108962
zeromatcopy 14378152
zeropadic 857529
zeropadic_shallow 17150
zeropol 12867487
zeroser 138992
zerovec 29348399
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 2184198
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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