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 30835-e55edf4b45) Lines: 1422 1535 92.6 %
Date: 2026-04-24 09:27:20 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 1887
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 5842
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 10157
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 22655
FqXQ_mul 22766
nf_get_Tr 23350
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 33578
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 37978
FqX_div 38568
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
FqX_degfact 47786
pari_calloc 48043
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58511
RgX_fpnorml2 61608
err_get_num 62594
bid_get_gen 64274
nf_get_ramified_primes 64644
RgX_is_rational 68159
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 75747
bnr_get_mod 77118
gal_get_group 80415
mkcol3 88314
cyclic_perm 99932
gtou 100704
mkcol4 103467
zv_to_zx 104146
mkmoo 108899
zeromat 108950
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114533
Q_abs_shallow 120240
mkmatcopy 122299
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138816
zeroser 138992
FqX_factor 140960
RgV_is_QV 142003
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 200652
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220741
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234289
zero_Flm_copy 238307
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 277491
gchar_get_zm 281911
bnf_get_tuN 283001
bnf_get_fu_nocheck 289085
bnf_get_tuU 303585
nf_get_G 304757
vec_prepend 313924
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337207
upr_norm 346135
RgX_renormalize 349807
FqX_mul 368264
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385001
RgX_is_QX 399939
ZM_hnfrem 401376
abgrp_get_no 406739
perm_conj 418299
FqX_Fq_mul 427303
FqX_extgcd 445775
nf_get_disc 463576
precdbl 476400
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
Z_issquare 509452
nf_get_sign 519600
mkvec3s 524441
addmuliu 541581
ellff_get_a4a6 551466
gdivsg 561181
zv_to_ZV 569244
FqX_Fp_mul 573027
vecsmall_to_vec 578043
prec2nbits_mul 581097
vecsmall_ei 585124
ZM_ZV_mod 610678
RgC_fpnorml2 619944
powIs 620095
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755015
gcmpgs 761939
row 763888
rnf_get_nf 786086
zero_F2m_copy 845266
FpXX_renormalize 849322
zeropadic 857328
affgr 899608
gmin_shallow 899725
ellinf 913913
ZXQ_sqr 960517
cgetc 975446
Flx_lead 1069468
polx_F2x 1079065
pr_norm 1090452
Flx_constant 1091319
Fp_invsafe 1097244
sstoQ 1097313
Flx_mulu 1105404
vecsmall_max 1177538
mkfracss 1209563
RgV_isscalar 1210271
gen_I 1268866
RgX_is_monomial 1326862
mkoo 1332089
bnf_get_sunits 1367776
rnf_get_absdegree 1392746
bnr_get_nf 1399078
constant_coeff 1442666
Rg_col_ei 1451079
inf_get_sign 1453213
vecsmall_concat 1464659
nf_get_varn 1503754
guncloneNULL_deep 1510086
bid_get_mod 1521922
F2m_flip 1554420
F2v_flip 1554420
F2x_flip 1554420
F2x_div 1571410
uutoQ 1602144
nf_get_roots 1628800
bnf_get_gen 1680325
zv_copy 1687903
vec_ei 1714731
mkvecsmall5 1718699
gsubgs 1731927
nf_get_roundG 1748444
abgrp_get_gen 1765039
ellff_get_field 1790616
modpr_get_p 1887627
get_F2x_degree 1928559
killblock 1958024
Flx_div 1999801
ellnf_get_nf 2027242
bnr_get_bid 2046099
Flv_copy 2059149
ulogint 2104265
ell_get_j 2126269
bid_get_MOD 2157265
bid_get_sprk 2157998
ZXQ_mul 2166163
get_F2x_var 2168700
bid_get_fact2 2201584
gc_slice 2211546
pol_xn 2253485
pari_realloc_ip 2347372
bid_get_archp 2397107
bid_get_fact 2498920
rnf_get_degree 2506335
bnr_get_cyc 2522572
ell_get_b4 2550293
mul_content 2657415
cyc_get_expo 2757531
hash_str 2781046
sqrtnr 2810562
bnr_get_clgp 2830253
zero_Flm 2830844
rnf_get_pol 2845192
vecslicepermute 2858039
znstar_get_pe 2869063
F2x_equal1 2873799
bnf_get_logfu 2874764
RgX_coeff 2889731
gisdouble 2995265
mkpolmod 3075534
Fq_red 3106093
bit_accuracy_mul 3175715
ZV_to_zv 3211714
identity_perm 3243147
F3m_coeff 3255550
zero_Flx 3255670
identity_zv 3267512
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307685
get_FpX_mod 3387861
vec_append 3468994
zero_F2v 3656618
bid_get_U 3680245
bnf_get_cyc 3686619
bnr_get_bnf 3710945
nf_get_index 3711984
perm_inv 3747398
pol_1 3752542
ell_get_b6 3863192
pol_x 3865080
mulsubii 3893693
vec_to_vecsmall 4040770
vecsmall_append 4114716
F2x_equal 4189654
sqrfrac 4201768
mkcol2s 4416244
FpXQX_renormalize 4692327
pol1_F2x 4768526
mkmat 4780752
qfb_disc3 4995109
mkfraccopy 5006811
is_rational_t 5017775
bnf_get_clgp 5375486
nf_get_zkprimpart 5416302
nf_get_zkden 5462110
FpX_div 5582124
bid_get_cyc 5739804
bid_get_grp 5804650
pari_stack_delete 5885055
col_ei 5925250
isintm1 6086920
pari_stack_init 6347090
Flm_copy 6434478
sqrti 6612767
get_FpX_var 6952096
get_FpX_degree 6969346
RgX_div 6998185
vecsmall_lexcmp 7043073
ZM_lll 7136289
RgX_gtofp 7164625
ZX_is_monic 7319802
znstar_get_faN 7334819
vecsmall_copy 7341020
ell_get_b2 7371408
zc_to_ZC 7910455
vecsmall_to_col 7925000
znstar_get_conreycyc 7982108
mkintmod 8066867
Q_abs 8078362
checkell_i 8104025
ZV_ZV_mod 8147165
Flx_equal1 8196258
RgM_gtofp 8257758
F2m_coeff 8359232
Flm_row 8743609
cxtofp 9094006
veclast 9374222
ismpzero 9712624
is_intreal_t 9712728
const_col 9730090
nf_get_invzk 9774614
bnf_get_nf 9866332
RgM_dimensions 9954765
mkvec4 10156408
ell_get_a4 10325141
ell_get_a6 10371101
mkcol 10654055
ZC_hnfrem 10697545
mul_denom 10753395
ell_get_c4 11018941
ell_get_a2 11108723
Fp_addmul 11299157
ser_isexactzero 11434254
gc_INT_affii 11574424
vectrunc_init 11769640
pr_get_gen 12072402
abgrp_get_cyc 12231243
F2x_clear 12361980
F2v_clear 12361981
nbits2nlong 12750179
ell_get_a3 12863764
zeropol 12889611
ell_get_c6 13474591
gmax_shallow 13510227
modpr_get_T 13867106
zeromatcopy 14378400
closure_get_frame 14690286
rowpermute 14758471
ell_get_type 14946137
Fp_div 15033828
Fp_divu 15128315
mkvec5 15187632
vectrunc_append 15856814
pr_get_e 16167184
ell_get_disc 16815988
matslice 16824824
ell_get_a1 17049198
pr_is_inert 17223964
pol0_F2x 17355883
normalize_frac 17568551
isint1 17994627
Fp_center_i 18004218
cxcompotor 18239762
qfb_disc 18502498
mkvecsmall4 18645238
const_vecsmall 18861147
Fp_double 20946851
vecpermute 21109824
Flx_div_pre 21706951
nf_get_M 21741502
RgM_shallowcopy 22226798
RgX_is_ZX 22316425
Fp_inv 23412835
nf_get_r1 23466365
ZV_isscalar 23675346
gmulgs 23830650
get_Flx_mod 25498896
pr_get_f 26443792
RgX_equal_var 26880493
pol_0 27168686
shallowcopy 27896164
mkqfb 27928309
zerovec 29348331
modpr_get_pr 31236550
hash_str_len 31624037
submulii 31985063
RgV_is_ZV 32096669
Fp_neg 32669269
mkmat2 33655623
RgC_gtofp 34033609
const_vec 34637478
polx_Flx 37497696
lincombii 38267988
znstar_get_N 38658713
zero_zv 39509564
mkfrac 42554261
powii 43130003
is_vec_t 44026492
closure_is_variadic 45951347
absfrac 47729540
pr_get_tau 49772661
guncloneNULL 49828660
ell_is_inf 50198197
mkmat22 50258184
QV_isscalar 54419696
pol1_Flx 55725879
addmuliu_inplace 59632723
submuliu_inplace 60139310
is_real_t 61900629
zero_Flv 61987792
Fp_sqr 64318176
qfb_is_qfi 64528567
F2x_copy 64604655
Fp_mulu 66225014
gtodouble 66256250
get_Flx_var 68243838
mkvec 68910610
nf_get_degree 71375897
Fp_center 77224696
vecsmallpermute 78755774
rowslice 79451589
perm_mul 80952160
get_Flx_degree 82494451
Fp_red 82927594
gtos 85878202
sqrtr 87175668
is_noncalc_t 88515655
mkcomplex 92027715
pr_get_p 92760020
cxnorm 94253616
dbllog2r 94341210
nf_get_pol 98119038
vecsmalltrunc_append 100838262
gc_all 102447407
RgX_copy 102503794
mkvecsmall3 103254888
F2v_set 104115243
cgiv 105483514
prec2nbits 106955689
vecsmall_prefixcmp 108088071
pol0_Flx 111640233
mkvec3 120674281
gaddgs 123271973
both_odd 123292437
zerocol 125179416
F2x_renormalize 127797065
nchar2nlong 127843328
F2x_set 129953252
equalim1 139546792
mkvecsmall 140333209
bit_prec 143393165
FpX_renormalize 147160948
mkcol2 157024489
ZX_renormalize 157538681
nbrows 158335924
leading_coeff 169348027
Flx_copy 175788809
Fp_add 183534205
nbits2prec 189002586
Fp_sub 202161150
Fp_mul 203686415
mkvec2 214786426
vecsmalltrunc_init 242716856
gc_GEN 246930532
mkvecsmall2 256947400
gtofp 257207132
gmulgu 283360013
closure_get_data 305864064
closure_get_oper 305890305
closure_codestr 305915958
is_universal_constant 326436689
lgcols 352753857
closure_arity 356338197
is_scalar_t 403952028
lg_increase 439450323
bin_copy 472935227
pari_free 487295713
is_bigint 574370624
leafcopy_avma 592963184
vecslice 657430665
F2v_coeff 664439487
F2x_coeff 670996298
pari_malloc 723415629
is_matvec_t 743661923
pari_stack_new 910388657
GENbinbase 919104035
pari_stack_alloc 1005708929
pari_stack_base 1011593972
gc_leaf 1162233273
equali1 1171361577
nbits2extraprec 1497399647
gc_upto 1972598233
odd 2125217369
is_pm1 2218064568
lgpol 2623790569
isintzero 2848318734
bit_accuracy 3145863835
gc_INT 4137441232
prec2lg 4565421143
is_const_t 5001656780
degpol 5513116175
icopy_avma 8055631116
remsBIL 8149989413
divsBIL 8241693555
isonstack 8361417612
is_recursive_t 9111612612

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