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 30773-2078653b96) Lines: 1421 1535 92.6 %
Date: 2026-03-31 09:27:24 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 6904
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 17149
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 22655
FqXQ_mul 22766
nf_get_Tr 23279
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 29945
gchar_get_basis 32816
gal_get_roots 32844
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33585
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 38028
FqX_div 38568
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47770
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58513
RgX_fpnorml2 61607
err_get_num 62596
bid_get_gen 64274
nf_get_ramified_primes 64644
RgX_is_rational 68157
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 75751
bnr_get_mod 77119
gal_get_group 80415
mkcol3 88314
cyclic_perm 99932
gtou 100724
mkcol4 103467
zv_to_zx 104146
mkmoo 108905
zeromat 108983
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114530
Q_abs_shallow 120232
mkmatcopy 122302
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138815
zeroser 138992
FqX_factor 140960
RgV_is_QV 142002
get_FpXQX_mod 146583
FlxqX_div_pre 165416
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200665
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 234424
zero_Flm_copy 238313
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 277489
gchar_get_zm 281911
bnf_get_tuN 282998
bnf_get_fu_nocheck 289083
bnf_get_tuU 303583
nf_get_G 304799
vec_prepend 313931
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337201
upr_norm 346136
RgX_renormalize 349807
FqX_mul 367934
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385012
RgX_is_QX 399940
ZM_hnfrem 401389
abgrp_get_no 406736
perm_conj 418299
FqX_Fq_mul 427297
FqX_extgcd 445021
nf_get_disc 463514
precdbl 476363
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
Z_issquare 509455
nf_get_sign 519602
mkvec3s 524441
addmuliu 541590
ellff_get_a4a6 551459
gdivsg 559710
zv_to_ZV 569244
FqX_Fp_mul 572201
vecsmall_to_vec 578043
prec2nbits_mul 581096
vecsmall_ei 585150
powIs 596435
ZM_ZV_mod 610673
RgC_fpnorml2 619936
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755022
gcmpgs 761921
row 763897
rnf_get_nf 786086
zero_F2m_copy 845290
FpXX_renormalize 849322
zeropadic 857499
gmin_shallow 898116
affgr 899594
ellinf 913909
ZXQ_sqr 960613
cgetc 975454
Flx_lead 1068699
polx_F2x 1078721
pr_norm 1090538
Flx_constant 1091639
Fp_invsafe 1097242
sstoQ 1097313
Flx_mulu 1105499
vecsmall_max 1177366
mkfracss 1209563
RgV_isscalar 1210269
gen_I 1268858
RgX_is_monomial 1320032
mkoo 1332102
bnf_get_sunits 1367772
rnf_get_absdegree 1392746
bnr_get_nf 1399070
constant_coeff 1441258
Rg_col_ei 1451121
inf_get_sign 1453253
vecsmall_concat 1464642
nf_get_varn 1503769
guncloneNULL_deep 1504076
bid_get_mod 1521922
F2v_flip 1554226
F2x_flip 1554226
F2m_flip 1554227
F2x_div 1570183
uutoQ 1602144
nf_get_roots 1628837
bnf_get_gen 1680319
zv_copy 1687859
vec_ei 1714725
mkvecsmall5 1718727
gsubgs 1731937
nf_get_roundG 1748477
abgrp_get_gen 1765028
ellff_get_field 1790603
modpr_get_p 1887627
get_F2x_degree 1928557
killblock 1954860
Flx_div 1999764
ellnf_get_nf 2027262
bnr_get_bid 2046094
Flv_copy 2059121
ulogint 2089704
ell_get_j 2126269
bid_get_MOD 2157249
bid_get_sprk 2157976
ZXQ_mul 2166272
get_F2x_var 2168671
bid_get_fact2 2201571
gc_slice 2211147
pol_xn 2252840
pari_realloc_ip 2359636
bid_get_archp 2397086
bid_get_fact 2498917
rnf_get_degree 2506335
bnr_get_cyc 2522561
ell_get_b4 2550293
mul_content 2657414
cyc_get_expo 2757527
hash_str 2757674
sqrtnr 2810571
bnr_get_clgp 2830227
zero_Flm 2830805
rnf_get_pol 2845192
vecslicepermute 2858193
znstar_get_pe 2869063
F2x_equal1 2873655
bnf_get_logfu 2874765
RgX_coeff 2889731
gisdouble 2995253
mkpolmod 3075560
Fq_red 3106472
bit_accuracy_mul 3175715
ZV_to_zv 3211716
identity_perm 3243115
zero_Flx 3255445
F3m_coeff 3255551
identity_zv 3267478
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307628
get_FpX_mod 3387867
vec_append 3468943
zero_F2v 3656675
bid_get_U 3680225
bnf_get_cyc 3686608
bnr_get_bnf 3710956
nf_get_index 3712007
perm_inv 3747358
pol_1 3752498
pol_x 3860455
ell_get_b6 3863192
mulsubii 3893092
vec_to_vecsmall 4039412
vecsmall_append 4114712
sqrfrac 4151058
F2x_equal 4184736
mkcol2s 4416244
FpXQX_renormalize 4692162
pol1_F2x 4768487
mkmat 4779975
qfb_disc3 4995054
mkfraccopy 4999471
is_rational_t 5017630
bnf_get_clgp 5375468
nf_get_zkprimpart 5416367
nf_get_zkden 5462180
FpX_div 5581975
bid_get_cyc 5739794
bid_get_grp 5804639
pari_stack_delete 5869829
col_ei 5925256
isintm1 6086515
pari_stack_init 6378922
Flm_copy 6434458
sqrti 6612635
get_FpX_var 6951945
get_FpX_degree 6969211
RgX_div 6997261
vecsmall_lexcmp 7043236
ZM_lll 7117516
RgX_gtofp 7163912
ZX_is_monic 7319858
znstar_get_faN 7334819
vecsmall_copy 7341108
ell_get_b2 7371401
zc_to_ZC 7910455
vecsmall_to_col 7924999
znstar_get_conreycyc 7982108
Q_abs 8060932
mkintmod 8066746
checkell_i 8104029
ZV_ZV_mod 8147152
Flx_equal1 8196011
RgM_gtofp 8257391
F2m_coeff 8358944
Flm_row 8743532
cxtofp 9092931
veclast 9374221
ismpzero 9702444
is_intreal_t 9702555
const_col 9730123
nf_get_invzk 9774840
bnf_get_nf 9866324
RgM_dimensions 9954621
mkvec4 10150175
ell_get_a4 10325142
ell_get_a6 10371102
mkcol 10653314
ZC_hnfrem 10697486
mul_denom 10709926
ell_get_c4 11019244
ell_get_a2 11108724
Fp_addmul 11244222
ser_isexactzero 11434254
gc_INT_affii 11563312
vectrunc_init 11766808
pr_get_gen 12072483
abgrp_get_cyc 12231187
F2x_clear 12361833
F2v_clear 12361845
nbits2nlong 12750730
ell_get_a3 12863758
zeropol 12867493
ell_get_c6 13474898
gmax_shallow 13510227
modpr_get_T 13867128
zeromatcopy 14377360
closure_get_frame 14734945
rowpermute 14758638
ell_get_type 14946252
Fp_div 15033804
Fp_divu 15128291
mkvec5 15187633
vectrunc_append 15856744
pr_get_e 16167316
ell_get_disc 16816613
matslice 16824318
ell_get_a1 17049191
pr_is_inert 17224352
normalize_frac 17311263
pol0_F2x 17349228
isint1 17987182
Fp_center_i 18038780
cxcompotor 18237577
qfb_disc 18502535
mkvecsmall4 18659701
const_vecsmall 18860713
Fp_double 20794161
vecpermute 21110405
Flx_div_pre 21705375
nf_get_M 21746118
RgM_shallowcopy 22235299
RgX_is_ZX 22315746
Fp_inv 23435585
nf_get_r1 23466604
ZV_isscalar 23675545
gmulgs 23814727
get_Flx_mod 25498765
pr_get_f 26444362
RgX_equal_var 26880496
pol_0 27123725
shallowcopy 27896223
mkqfb 27928244
zerovec 29348298
modpr_get_pr 31236567
hash_str_len 31655889
submulii 31985063
RgV_is_ZV 32095985
Fp_neg 32668592
mkmat2 33665750
RgC_gtofp 34030853
const_vec 34674402
polx_Flx 37492945
lincombii 38268691
znstar_get_N 38658713
zero_zv 39508755
mkfrac 41922444
powii 43129982
is_vec_t 43944042
closure_is_variadic 45931137
absfrac 46991153
pr_get_tau 49773511
guncloneNULL 49823951
ell_is_inf 50151017
mkmat22 50255490
QV_isscalar 54420334
pol1_Flx 55723763
addmuliu_inplace 59626332
submuliu_inplace 60135386
is_real_t 61900627
zero_Flv 61987843
Fp_sqr 63607186
qfb_is_qfi 64517798
F2x_copy 64574242
gtodouble 66248070
Fp_mulu 66956213
get_Flx_var 68242769
mkvec 69368910
nf_get_degree 71376664
Fp_center 77308760
vecsmallpermute 78755728
rowslice 79455204
perm_mul 80952054
get_Flx_degree 82921904
Fp_red 82930512
gtos 85865550
sqrtr 86929240
is_noncalc_t 88515241
mkcomplex 92008036
pr_get_p 92760858
cxnorm 94099978
dbllog2r 94326993
nf_get_pol 98120133
vecsmalltrunc_append 100865172
RgX_copy 102486990
gc_all 102550667
mkvecsmall3 103254146
F2v_set 104115103
cgiv 105473516
prec2nbits 106943762
vecsmall_prefixcmp 108088071
pol0_Flx 111627667
mkvec3 121992907
gaddgs 123270529
both_odd 124081528
zerocol 125148568
F2x_renormalize 127868530
nchar2nlong 127918945
F2x_set 129989571
equalim1 139568129
mkvecsmall 140269550
bit_prec 143380394
FpX_renormalize 147007911
mkcol2 156957437
ZX_renormalize 157437061
nbrows 158265529
leading_coeff 169335325
Flx_copy 175785948
Fp_add 183306535
nbits2prec 188990253
Fp_sub 201005426
Fp_mul 203092996
mkvec2 214983626
vecsmalltrunc_init 243616943
gc_GEN 246746882
mkvecsmall2 256949313
gtofp 257171588
gmulgu 283360013
closure_get_data 305839286
closure_get_oper 305857117
closure_codestr 305872020
is_universal_constant 326530181
lgcols 352674546
closure_arity 356316161
is_scalar_t 403470755
lg_increase 445679349
bin_copy 472872605
pari_free 487228576
is_bigint 574327689
leafcopy_avma 594034804
vecslice 657325442
F2v_coeff 664437113
F2x_coeff 671004439
pari_malloc 723339989
is_matvec_t 742676379
pari_stack_new 910833973
GENbinbase 918984709
pari_stack_alloc 1006159738
pari_stack_base 1011979197
gc_leaf 1163843140
equali1 1169235425
nbits2extraprec 1497810858
gc_upto 1971376933
odd 2124298793
is_pm1 2216961794
lgpol 2627829988
isintzero 2847535998
bit_accuracy 3144752834
gc_INT 4134418316
prec2lg 4561393570
is_const_t 5002662305
degpol 5524194974
icopy_avma 8049664330
remsBIL 8148540974
divsBIL 8239903675
isonstack 8358052470
is_recursive_t 9104632809

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