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
F2xX_shift 0
F3m_copy 0
F3m_set 0
FlxqX_div 0
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQ_add 0
FpXQ_sub 0
FqXQ_add 0
FqXQ_div 0
FqXQ_inv 0
FqXQ_invsafe 0
FqXQ_pow 0
FqXQ_sqr 0
FqXQ_sub 0
FqX_divrem 0
FqX_halfgcd 0
FqX_integ 0
FqXn_exp 0
FqXn_sqr 0
R_abs 0
RgX_isscalar 0
bid_get_gen_nocheck 0
bid_get_no 0
cbrtr 0
cbrtr_abs 0
gchar_get_U 0
gchar_get_hnf 0
gmaxsg 0
gminsg 0
inv_content 0
is_qfb_t 0
mkcol4s 0
mkerr 0
mkmat5 0
mkvec5s 0
mkvec6 0
pari_err_FILE 0
pari_err_MAXPRIME 0
pari_err_PACKAGE 0
polx_zx 0
random_Fq 0
truecoef 0
trunc_safe 0
vec_setconst 0
vecmodii 0
vecsmall_coincidence 0
zero_F2m 0
zero_zm 0
zero_zx 0
zm_copy 0
zm_row 0
zm_to_zxV 0
zx_shift 0
zx_to_zv 0
FqX_ddf 7
FqX_factor_squarefree 7
mkrfraccopy 14
pari_err_BUG 14
znstar_get_no 14
RgM_gtomp 21
mkvec4s 21
pari_err_CONSTPOL 21
vecsmall_indexmax 21
vecsmall_indexmin 21
closure_get_code 28
pari_err_FILEDESC 36
F2v_ei 42
RgV_gtofp 56
pari_err_IRREDPOL 63
pari_err_ROOTS0 63
bnr_get_gen_nocheck 70
mkmat4 84
vecsmall_isin 84
vecsmall_pack 84
gal_get_e 91
pari_err_COPRIME 91
mkcol5 94
Z_ispower 98
pari_err_FLAG 98
pari_err_PRIME 98
rnf_get_index 105
ellnf_get_bnf 119
RgX_to_RgV 140
pari_err_OVERFLOW 156
mkvecs 168
FqX_to_mod 175
pari_err_COMPONENT 214
nbits2ndec 228
pari_err_PREC 238
pari_err_PRIORITY 245
zm_transpose 266
rowsplice 273
err_get_compo 294
pol_xnall 294
mkvec6s 301
ellQp_get_prec 308
mkcol3s 315
gchar_get_nfree 322
gchar_get_ntors 322
get_F2xqX_mod 343
rnf_get_disc 357
pari_err_VAR 371
polxn_Flx 371
sturm 385
pari_err_OP 406
pari_err_IMPL 539
vecsmall_lengthen 547
RgC_gtomp 574
rnf_get_varn 574
gchar_get_r2 623
gchar_set_HUUi 630
gchar_set_nalg 630
gchar_set_nfree 630
gchar_set_ntors 630
bnf_get_reg 648
pari_err_DIM 718
perm_sqr 728
Rg_to_Fq 756
F2m_set 798
gchar_set_m0 945
row_i 987
RgM_minor 1036
quad_disc 1085
ellQp_get_p 1134
zero_F2x 1181
gchar_copy_precs 1225
gchar_set_prec 1225
rnf_get_invzk 1225
rnf_get_k 1225
locs_get_Lgenfil 1288
locs_get_famod 1288
FqX_powu 1295
pari_err_MODULUS 1316
rnf_get_idealdisc 1386
rnf_get_alpha 1428
ellQp_get_zero 1463
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_get_sfu 1743
gchar_set_evalprec 1813
mkintmodu 1834
gchar_get_nm 1869
pari_realloc 1880
RgXQX_div 1904
mkpadic 2009
gchar_get_nalg 2044
gchar_set_nf 2110
gchar_set_u0 2121
vecreverse_inplace 2605
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2876
gchar_set_nfprec 2968
vecsmall_reverse 3052
vecsmall_to_vec_inplace 3304
gchar_get_m0 3318
pari_err_TYPE2 3493
get_FpXQX_degree 3589
vecsmall_min 3710
gchar_get_evalprec 4011
gchar_get_modP 4095
FqX_normalize 4144
nf_get_r2 4154
gchar_get_u0 4252
nf_get_zk 4382
nf_get_diff 4445
F2v_copy 4487
FpXQX_div 4526
matpascal 4683
rnf_get_zk 4830
rnf_get_nfvarn 4886
idealchineseinit 5427
pari_stack_pushp 5821
FqX_get_red 6090
gal_get_p 6118
gval 6230
FqXn_expint 6590
gal_get_orders 6706
is_extscalar_t 6876
pari_err_SQRTN 7084
FqXn_inv 7126
rnf_get_nfzk 7245
FqX_roots 7273
submuliu 7700
bnr_get_gen 7847
get_FlxqX_mod 8033
identity_ZV 8120
gchar_get_mod 8225
locs_get_mod 8225
ndec2nbits 8270
FqX_gcd 8288
bnf_get_no 8372
vectrunc_append_batch 9667
prec2ndec 9778
cgetalloc 10136
ZX_equal1 10488
gchar_get_Ui 10983
vec_shorten 11557
R_abs_shallow 13097
gchar_get_nfprec 13468
closure_get_dbg 13660
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15491
znstar_get_gen 16150
gchar_get_cyc 16177
mkmat3 17001
zeropadic_shallow 17150
gchar_get_r1 17444
Fp_muls 17780
gchar_get_prec 18795
vec_lengthen 18960
FqX_halve 19411
pari_err_INV 20025
FpXY_Fq_evaly 20587
rnf_get_nfdegree 21455
FqX_mulu 21942
gtomp 22428
RgM_fpnorml2 22654
FqXQ_mul 22766
nf_get_Tr 23280
ZV_dvd 23485
gal_get_mod 23870
FqX_neg 24956
FqX_red 25354
bnf_get_fu 25859
nfV_to_scalar_or_alg 26300
gal_get_den 27867
gal_get_invvdm 27874
absfrac_shallow 28237
gequalgs 29176
zerovec_block 29654
gener_Fq_local 29946
gchar_get_basis 32816
gal_get_roots 32844
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33582
Qtoss 35364
gal_get_pol 36428
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37150
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 38106
FqX_div 38564
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47756
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58511
RgX_fpnorml2 61607
err_get_num 62596
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68156
FqX_sub 68607
mkquad 69118
FqX_div_by_X_x 69699
quadnorm 69881
FqX_sqr 71855
bid_get_ideal 72842
Fq_to_FpXQ 73652
vecsmall_shorten 75754
bnr_get_mod 77119
gal_get_group 80414
mkcol3 88314
cyclic_perm 99932
gtou 100673
mkcol4 103467
zv_to_zx 104146
mkmoo 108902
zeromat 108962
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114532
Q_abs_shallow 120228
mkmatcopy 122310
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138810
zeroser 138992
FqX_factor 140960
RgV_is_QV 142000
get_FpXQX_mod 146583
FlxqX_div_pre 165417
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200662
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220728
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234461
zero_Flm_copy 238312
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249623
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264435
bnr_get_no 277490
gchar_get_zm 281911
bnf_get_tuN 283002
bnf_get_fu_nocheck 289094
bnf_get_tuU 303586
nf_get_G 304768
vec_prepend 313919
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337204
upr_norm 346135
RgX_renormalize 349807
FqX_mul 367934
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385005
RgX_is_QX 399941
ZM_hnfrem 401385
abgrp_get_no 406734
perm_conj 418299
FqX_Fq_mul 427287
FqX_extgcd 445013
nf_get_disc 463513
precdbl 476370
RgX_shift_inplace 479435
RgX_shift_inplace_init 479435
Z_issquare 509453
nf_get_sign 519600
mkvec3s 524441
addmuliu 541599
gdivsg 559711
zv_to_ZV 569244
FqX_Fp_mul 572187
vecsmall_to_vec 578043
prec2nbits_mul 581096
vecsmall_ei 585083
powIs 596435
ZM_ZV_mod 610725
RgC_fpnorml2 619950
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755011
gcmpgs 761906
row 763899
rnf_get_nf 786086
ellff_get_a4a6 800538
zero_F2m_copy 845299
FpXX_renormalize 849322
zeropadic 857529
gmin_shallow 898237
affgr 899594
ZXQ_sqr 960522
cgetc 975456
Flx_lead 1067986
polx_F2x 1080225
pr_norm 1090521
Flx_constant 1091539
Fp_invsafe 1097237
sstoQ 1097313
Flx_mulu 1105473
vecsmall_max 1177309
ellinf 1208497
mkfracss 1209563
RgV_isscalar 1210268
gen_I 1268878
RgX_is_monomial 1319950
mkoo 1331987
bnf_get_sunits 1367772
rnf_get_absdegree 1392746
bnr_get_nf 1399078
zero_Flx 1427126
constant_coeff 1441256
Rg_col_ei 1451068
inf_get_sign 1453133
vecsmall_concat 1464659
nf_get_varn 1503769
guncloneNULL_deep 1513377
bid_get_mod 1521922
F2m_flip 1554826
F2v_flip 1554826
F2x_flip 1554826
F2x_div 1574241
uutoQ 1602144
nf_get_roots 1628794
bnf_get_gen 1680310
vec_ei 1714747
mkvecsmall5 1718722
gsubgs 1731936
nf_get_roundG 1748453
abgrp_get_gen 1765022
modpr_get_p 1887627
get_F2x_degree 1928621
killblock 1960449
Flx_div 1999854
ellnf_get_nf 2027252
ellff_get_field 2038582
bnr_get_bid 2046100
ulogint 2064068
ell_get_j 2126269
bid_get_MOD 2157257
bid_get_sprk 2157990
ZXQ_mul 2166221
zv_copy 2184198
bid_get_fact2 2201577
gc_slice 2210970
pol_xn 2252832
pari_realloc_ip 2358121
bid_get_archp 2397144
get_F2x_mod 2490744
bid_get_fact 2498942
rnf_get_degree 2506335
bnr_get_cyc 2522555
get_F2x_var 2536883
ell_get_b4 2550293
Flv_copy 2555463
mul_content 2657542
cyc_get_expo 2757521
hash_str 2757660
sqrtnr 2810622
bnr_get_clgp 2830221
zero_Flm 2831037
rnf_get_pol 2845192
vecslicepermute 2858914
znstar_get_pe 2869063
F2x_equal1 2873790
bnf_get_logfu 2874764
RgX_coeff 2889731
gisdouble 2995760
mkpolmod 3075582
Fq_red 3106510
bit_accuracy_mul 3175715
ZV_to_zv 3211716
identity_perm 3243289
F3m_coeff 3255607
identity_zv 3267651
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3387869
vec_append 3469035
zero_F2v 3656735
bid_get_U 3680238
bnf_get_cyc 3686598
bnr_get_bnf 3710945
nf_get_index 3711987
perm_inv 3747405
pol_1 3752517
pol_x 3860447
ell_get_b6 3863192
mulsubii 3893225
pol1_F2x 3951936
vec_to_vecsmall 4039464
vecsmall_append 4114732
sqrfrac 4150873
mkcol2s 4416244
F2x_equal 4673030
FpXQX_renormalize 4692782
mkmat 4780148
qfb_disc3 4995311
mkfraccopy 4999705
is_rational_t 5017626
vecsmall_copy 5369837
bnf_get_clgp 5375449
nf_get_zkprimpart 5416239
nf_get_zkden 5462049
FpX_div 5582076
checkell_i 5593758
bid_get_cyc 5739845
bid_get_grp 5804699
pari_stack_delete 5899962
col_ei 5925294
isintm1 6086541
pari_stack_init 6375043
Flm_copy 6434662
sqrti 6612776
get_FpX_var 6954172
get_FpX_degree 6969439
RgX_div 6997065
vecsmall_lexcmp 7043257
ell_get_a2 7106324
ZM_lll 7117856
RgX_gtofp 7163823
ZX_is_monic 7319891
znstar_get_faN 7334819
ell_get_b2 7371399
zc_to_ZC 7910689
vecsmall_to_col 7925256
znstar_get_conreycyc 7982108
Q_abs 8061047
mkintmod 8065919
ZV_ZV_mod 8147240
Flx_equal1 8195800
RgM_gtofp 8257971
F2m_coeff 8360146
ell_get_a4 8536865
Flm_row 8743643
ell_get_a3 8814561
ell_get_a1 8997593
cxtofp 9093612
veclast 9374232
ismpzero 9702562
is_intreal_t 9702659
const_col 9730046
nf_get_invzk 9774978
bnf_get_nf 9866308
RgM_dimensions 9955015
mkvec4 10150217
ell_get_a6 10371103
mkcol 10653504
ZC_hnfrem 10697537
mul_denom 10709806
ell_get_c4 11018877
Fp_addmul 11304713
ser_isexactzero 11434254
gc_INT_affii 11582601
vectrunc_init 11767437
pr_get_gen 12072541
abgrp_get_cyc 12231270
F2v_clear 12362871
F2x_clear 12362880
ell_get_type 12499892
nbits2nlong 12723848
zeropol 12867487
pol0_F2x 13241553
ell_get_c6 13474554
gmax_shallow 13510227
modpr_get_T 13867106
zeromatcopy 14378152
closure_get_frame 14734944
rowpermute 14758837
Fp_div 15034661
Fp_divu 15129179
mkvec5 15187623
vectrunc_append 15859213
pr_get_e 16167134
ell_get_disc 16816421
matslice 16826007
pr_is_inert 17224288
normalize_frac 17311773
isint1 17987172
Fp_center_i 18036245
cxcompotor 18239239
qfb_disc 18502592
mkvecsmall4 18693681
const_vecsmall 18860759
Fp_double 20994237
vecpermute 21110503
Flx_div_pre 21708937
nf_get_M 21745894
RgM_shallowcopy 22235383
RgX_is_ZX 22315772
Fp_inv 23436349
nf_get_r1 23466295
ZV_isscalar 23675404
gmulgs 23860272
get_Flx_mod 25502985
pol_0 26065170
pr_get_f 26444352
RgX_equal_var 26880199
shallowcopy 27897824
mkqfb 27928823
zerovec 29348399
modpr_get_pr 31236601
Fp_neg 31477731
hash_str_len 31655221
submulii 31985063
RgV_is_ZV 32095990
mkmat2 33667334
RgC_gtofp 34034421
const_vec 34679014
zero_zv 37318221
polx_Flx 37501175
lincombii 38277807
znstar_get_N 38658713
mkfrac 41926891
powii 43129982
is_vec_t 43941693
closure_is_variadic 45930954
absfrac 46991384
ell_is_inf 49409041
pr_get_tau 49773085
guncloneNULL 49834457
mkmat22 50259354
QV_isscalar 54420785
pol1_Flx 54916328
addmuliu_inplace 59556308
zero_Flv 59760964
F2x_copy 59792113
submuliu_inplace 60062641
is_real_t 61899892
qfb_is_qfi 64525495
Fp_sqr 64805703
gtodouble 66248536
Fp_mulu 68381203
get_Flx_var 68387887
mkvec 69680294
nf_get_degree 71376690
Fp_center 77385996
vecsmallpermute 78759452
rowslice 79463800
perm_mul 80955603
get_Flx_degree 82017947
Fp_red 82930284
gtos 85865504
sqrtr 86936275
is_noncalc_t 88499662
mkcomplex 92013162
pr_get_p 92760739
cxnorm 94096974
dbllog2r 94333062
nf_get_pol 98121005
vecsmalltrunc_append 100840396
RgX_copy 102485843
gc_all 102550614
pol0_Flx 103207916
mkvecsmall3 103270661
F2v_set 104116263
cgiv 105491074
prec2nbits 106956676
vecsmall_prefixcmp 108088071
F2x_renormalize 112603201
mkvec3 119239947
gaddgs 123270544
both_odd 124143979
zerocol 125156262
F2x_set 126022940
nchar2nlong 127918670
mkvecsmall 131850961
equalim1 139567925
bit_prec 143399772
FpX_renormalize 145858329
ZX_renormalize 155208688
mkcol2 156985370
nbrows 158273491
leading_coeff 169337635
Flx_copy 173812786
Fp_add 181369749
nbits2prec 189008213
Fp_mul 201156022
Fp_sub 203202317
mkvec2 211068070
vecsmalltrunc_init 239586664
gc_GEN 246997478
mkvecsmall2 256237739
gtofp 257177916
gmulgu 283360013
closure_get_data 305890915
closure_get_oper 305907277
closure_codestr 305917559
is_universal_constant 326524744
lgcols 352698363
closure_arity 356372895
is_scalar_t 403468699
lg_increase 434767773
bin_copy 473131263
pari_free 487499929
is_bigint 574390372
leafcopy_avma 594571682
vecslice 657465673
F2v_coeff 664445961
F2x_coeff 671032586
pari_malloc 723597222
is_matvec_t 742776907
pari_stack_new 910966102
GENbinbase 919500768
pari_stack_alloc 1006272873
pari_stack_base 1012154218
gc_leaf 1142067465
equali1 1169400940
nbits2extraprec 1498429152
gc_upto 1956889361
odd 2123779698
is_pm1 2216254553
lgpol 2590666695
isintzero 2849050184
bit_accuracy 3132109755
gc_INT 4136237175
prec2lg 4565627838
is_const_t 5006732852
degpol 5513136189
icopy_avma 8051459725
remsBIL 8144580276
divsBIL 8235858878
isonstack 8325677997
is_recursive_t 9103385247

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