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 30772-246cd0a587) Lines: 1422 1535 92.6 %
Date: 2026-03-28 09:27:57 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 11556
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 23282
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 33577
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 37800
FqX_div 38566
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 58510
RgX_fpnorml2 61604
err_get_num 62596
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68155
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 80416
mkcol3 88314
cyclic_perm 99932
gtou 100707
mkcol4 103467
zv_to_zx 104146
mkmoo 108897
zeromat 108958
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114529
Q_abs_shallow 120229
mkmatcopy 122302
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138812
zeroser 138992
FqX_factor 140960
RgV_is_QV 142001
get_FpXQX_mod 146583
FlxqX_div_pre 165414
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 220726
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234583
zero_Flm_copy 238314
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249622
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 282996
bnf_get_fu_nocheck 289089
bnf_get_tuU 303576
nf_get_G 304729
vec_prepend 313926
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337208
upr_norm 346134
RgX_renormalize 349807
FqX_mul 367934
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385020
RgX_is_QX 399943
ZM_hnfrem 401367
abgrp_get_no 406735
perm_conj 418299
FqX_Fq_mul 427297
FqX_extgcd 445018
nf_get_disc 463508
precdbl 476360
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
Z_issquare 509454
nf_get_sign 519600
mkvec3s 524441
addmuliu 541644
ellff_get_a4a6 551467
gdivsg 559711
zv_to_ZV 569244
FqX_Fp_mul 572185
vecsmall_to_vec 578043
prec2nbits_mul 581097
vecsmall_ei 585110
powIs 596435
ZM_ZV_mod 610752
RgC_fpnorml2 619945
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755028
gcmpgs 761920
row 763897
rnf_get_nf 786086
zero_F2m_copy 845244
FpXX_renormalize 849322
zeropadic 857585
gmin_shallow 898202
affgr 899594
ellinf 913928
ZXQ_sqr 960617
cgetc 975461
Flx_lead 1068191
polx_F2x 1073372
pr_norm 1090482
Flx_constant 1091610
Fp_invsafe 1097234
sstoQ 1097313
Flx_mulu 1105458
vecsmall_max 1177438
mkfracss 1209563
RgV_isscalar 1210269
gen_I 1268851
RgX_is_monomial 1320014
mkoo 1332042
bnf_get_sunits 1367775
rnf_get_absdegree 1392746
bnr_get_nf 1399076
constant_coeff 1441241
Rg_col_ei 1451072
inf_get_sign 1453189
vecsmall_concat 1464516
nf_get_varn 1503787
guncloneNULL_deep 1511166
bid_get_mod 1521921
F2m_flip 1553424
F2v_flip 1553424
F2x_flip 1553424
F2x_div 1557110
uutoQ 1602144
nf_get_roots 1628781
bnf_get_gen 1680321
zv_copy 1687892
vec_ei 1714738
mkvecsmall5 1718713
gsubgs 1731935
nf_get_roundG 1748408
abgrp_get_gen 1765034
ellff_get_field 1790624
modpr_get_p 1887627
get_F2x_degree 1928575
killblock 1959592
Flx_div 1999804
ellnf_get_nf 2027254
bnr_get_bid 2046099
Flv_copy 2059158
ulogint 2071170
ell_get_j 2126269
bid_get_MOD 2157267
bid_get_sprk 2157990
ZXQ_mul 2166297
get_F2x_var 2168725
bid_get_fact2 2201587
gc_slice 2211203
pol_xn 2252806
pari_realloc_ip 2357698
bid_get_archp 2397131
bid_get_fact 2498947
rnf_get_degree 2506335
bnr_get_cyc 2522573
ell_get_b4 2550293
mul_content 2657501
cyc_get_expo 2757497
hash_str 2757674
sqrtnr 2810518
bnr_get_clgp 2830245
zero_Flm 2830675
rnf_get_pol 2845192
vecslicepermute 2858724
znstar_get_pe 2869063
F2x_equal1 2873689
bnf_get_logfu 2874781
RgX_coeff 2889731
gisdouble 2995147
mkpolmod 3075585
Fq_red 3106655
bit_accuracy_mul 3175715
ZV_to_zv 3211716
identity_perm 3243040
F3m_coeff 3255555
zero_Flx 3255974
identity_zv 3267403
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307667
get_FpX_mod 3387868
vec_append 3468976
zero_F2v 3656398
bid_get_U 3680241
bnf_get_cyc 3686615
bnr_get_bnf 3710953
nf_get_index 3712013
perm_inv 3747350
pol_1 3752544
pol_x 3860475
ell_get_b6 3863192
mulsubii 3892994
vec_to_vecsmall 4039443
vecsmall_append 4114681
F2x_equal 4142934
sqrfrac 4150952
mkcol2s 4416244
FpXQX_renormalize 4692902
pol1_F2x 4769198
mkmat 4780192
qfb_disc3 4994742
mkfraccopy 4999678
is_rational_t 5017644
bnf_get_clgp 5375480
nf_get_zkprimpart 5416277
nf_get_zkden 5462136
FpX_div 5581977
bid_get_cyc 5739845
bid_get_grp 5804695
pari_stack_delete 5891013
col_ei 5925297
isintm1 6086470
pari_stack_init 6374461
Flm_copy 6434493
sqrti 6612730
get_FpX_var 6952568
get_FpX_degree 6969492
RgX_div 6997261
vecsmall_lexcmp 7043259
ZM_lll 7117331
RgX_gtofp 7164074
ZX_is_monic 7319907
znstar_get_faN 7334819
vecsmall_copy 7341216
ell_get_b2 7371403
zc_to_ZC 7910773
vecsmall_to_col 7925319
znstar_get_conreycyc 7982108
Q_abs 8061036
mkintmod 8066783
checkell_i 8104058
ZV_ZV_mod 8147329
Flx_equal1 8196106
RgM_gtofp 8257220
F2m_coeff 8356108
Flm_row 8743115
cxtofp 9093203
veclast 9374237
ismpzero 9702531
is_intreal_t 9702627
const_col 9730086
nf_get_invzk 9774846
bnf_get_nf 9866310
RgM_dimensions 9955043
mkvec4 10150249
ell_get_a4 10325148
ell_get_a6 10371108
mkcol 10653493
ZC_hnfrem 10697593
mul_denom 10709738
ell_get_c4 11019112
ell_get_a2 11108730
Fp_addmul 11256580
ser_isexactzero 11434254
gc_INT_affii 11591674
vectrunc_init 11767371
pr_get_gen 12072519
abgrp_get_cyc 12231298
F2x_clear 12360388
F2v_clear 12360398
nbits2nlong 12755015
ell_get_a3 12863766
zeropol 12867467
ell_get_c6 13474805
gmax_shallow 13510227
modpr_get_T 13867143
zeromatcopy 14377077
closure_get_frame 14734947
rowpermute 14758484
ell_get_type 14946322
Fp_div 15036850
Fp_divu 15131431
mkvec5 15187651
vectrunc_append 15859828
pr_get_e 16167243
ell_get_disc 16815619
matslice 16824702
ell_get_a1 17049199
pr_is_inert 17224390
normalize_frac 17311573
pol0_F2x 17313050
isint1 17987123
Fp_center_i 18042862
cxcompotor 18238273
qfb_disc 18502545
mkvecsmall4 18694202
const_vecsmall 18860506
Fp_double 20914687
vecpermute 21111934
Flx_div_pre 21708349
nf_get_M 21745778
RgM_shallowcopy 22234582
RgX_is_ZX 22315346
Fp_inv 23435998
nf_get_r1 23466249
ZV_isscalar 23675241
gmulgs 23817928
get_Flx_mod 25502964
pr_get_f 26444338
RgX_equal_var 26880497
pol_0 27123722
shallowcopy 27896701
mkqfb 27927672
zerovec 29348356
modpr_get_pr 31236608
hash_str_len 31655924
submulii 31985063
RgV_is_ZV 32095991
Fp_neg 32671841
mkmat2 33665717
RgC_gtofp 34031016
const_vec 34677489
polx_Flx 37501380
lincombii 38260871
znstar_get_N 38658713
zero_zv 39496940
mkfrac 41923554
powii 43130020
is_vec_t 43963757
closure_is_variadic 45931007
absfrac 46991361
pr_get_tau 49773642
guncloneNULL 49830615
ell_is_inf 50251239
mkmat22 50259265
QV_isscalar 54420408
pol1_Flx 55734955
addmuliu_inplace 59633803
submuliu_inplace 60144280
is_real_t 61900626
zero_Flv 61976707
F2x_copy 64008868
Fp_sqr 64521891
qfb_is_qfi 64526778
gtodouble 66249251
get_Flx_var 68255880
Fp_mulu 68272543
mkvec 69388674
nf_get_degree 71377020
Fp_center 77399141
vecsmallpermute 78756937
rowslice 79468261
perm_mul 80953124
Fp_red 82929541
get_Flx_degree 83563075
gtos 85865486
sqrtr 86935893
is_noncalc_t 88514675
mkcomplex 92007415
pr_get_p 92760896
cxnorm 94099084
dbllog2r 94332550
nf_get_pol 98120879
vecsmalltrunc_append 100879802
RgX_copy 102486983
gc_all 102550558
mkvecsmall3 103273907
F2v_set 104112675
cgiv 105483687
prec2nbits 106959836
vecsmall_prefixcmp 108088071
pol0_Flx 111619608
gaddgs 123270574
mkvec3 123901190
both_odd 124146885
zerocol 125150326
F2x_renormalize 127204894
nchar2nlong 127920723
F2x_set 129820193
equalim1 139568117
mkvecsmall 140264129
bit_prec 143390839
FpX_renormalize 147048220
mkcol2 156987587
ZX_renormalize 157553626
nbrows 158266372
leading_coeff 169338728
Flx_copy 175862316
Fp_add 183599342
nbits2prec 188996648
Fp_sub 201576049
Fp_mul 203177050
mkvec2 214259037
vecsmalltrunc_init 242180759
gc_GEN 246748880
mkvecsmall2 257056033
gtofp 257186311
gmulgu 283360013
closure_get_data 306090585
closure_get_oper 306109992
closure_codestr 306144226
is_universal_constant 326845039
lgcols 352687800
closure_arity 356559719
is_scalar_t 403470645
lg_increase 444376699
bin_copy 472875266
pari_free 487241153
is_bigint 574356973
leafcopy_avma 594490646
vecslice 657561475
F2v_coeff 664421544
F2x_coeff 671050587
pari_malloc 723343205
is_matvec_t 742957725
pari_stack_new 911098539
GENbinbase 918983254
pari_stack_alloc 1006443587
pari_stack_base 1012275606
gc_leaf 1167604673
equali1 1169467941
nbits2extraprec 1498561163
gc_upto 1971712637
odd 2124396282
is_pm1 2217790977
lgpol 2632521584
isintzero 2849782518
bit_accuracy 3142823938
gc_INT 4137050044
prec2lg 4568258641
is_const_t 5008215584
degpol 5540774167
icopy_avma 8051612353
remsBIL 8155340183
divsBIL 8246772077
isonstack 8367932837
is_recursive_t 9105313796

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