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 30851-7844d7b3a5) Lines: 1421 1535 92.6 %
Date: 2026-05-03 09:26:29 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 6237
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
FqXQ_mul 22766
RgM_fpnorml2 22788
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 29945
gchar_get_basis 32816
gal_get_roots 32844
F2xqX_div 33173
ndec2prec 33356
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 37963
FqX_div 38566
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41626
znstar_get_Ui 46788
FqX_degfact 47786
pari_calloc 48120
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58511
err_get_num 62596
RgX_fpnorml2 63071
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68290
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 75748
bnr_get_mod 77119
gal_get_group 80413
mkcol3 88314
cyclic_perm 99932
gtou 100707
mkcol4 103467
zv_to_zx 104146
mkmoo 108907
zeromat 109000
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114537
Q_abs_shallow 120232
mkmatcopy 122313
mkveccopy 122528
FqX_add 127694
RgXQX_rem 127914
rnf_get_map 135659
zeroser 139013
idealred 139133
FqX_factor 140960
RgV_is_QV 142044
get_FpXQX_mod 146583
FlxqX_div_pre 165413
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 220750
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234589
zero_Flm_copy 238311
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249619
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 282996
bnf_get_fu_nocheck 289087
bnf_get_tuU 303578
nf_get_G 304875
vec_prepend 313921
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337206
upr_norm 346136
RgX_renormalize 349807
FqX_mul 368761
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384983
RgX_is_QX 400063
ZM_hnfrem 401365
abgrp_get_no 406738
perm_conj 418299
FqX_Fq_mul 427297
FqX_extgcd 447454
nf_get_disc 464167
precdbl 476412
RgX_shift_inplace 479448
RgX_shift_inplace_init 479448
Z_issquare 509453
nf_get_sign 519602
mkvec3s 524441
addmuliu 541563
ellff_get_a4a6 551449
gdivsg 561180
zv_to_ZV 569244
FqX_Fp_mul 576300
vecsmall_to_vec 578043
prec2nbits_mul 581096
vecsmall_ei 585153
ZM_ZV_mod 610726
RgC_fpnorml2 619952
powIs 620095
FqX_is_squarefree 683802
vecreverse 697304
mkrfrac 698439
coltrunc_init 740257
logint 755019
gcmpgs 761926
row 763901
rnf_get_nf 786086
zero_F2m_copy 845253
FpXX_renormalize 849322
zeropadic 857460
affgr 899650
gmin_shallow 901203
ellinf 913922
ZXQ_sqr 961456
cgetc 975445
Flx_lead 1069566
polx_F2x 1074393
pr_norm 1090621
Flx_constant 1091604
Fp_invsafe 1097242
sstoQ 1097313
Flx_mulu 1105461
vecsmall_max 1177641
mkfracss 1209563
RgV_isscalar 1210271
gen_I 1268878
RgX_is_monomial 1328259
mkoo 1332158
bnf_get_sunits 1367771
rnf_get_absdegree 1392746
bnr_get_nf 1399082
constant_coeff 1445625
Rg_col_ei 1451103
inf_get_sign 1453283
vecsmall_concat 1464647
nf_get_varn 1503820
guncloneNULL_deep 1509369
bid_get_mod 1521922
F2m_flip 1553797
F2v_flip 1553797
F2x_flip 1553797
F2x_div 1559136
uutoQ 1602144
nf_get_roots 1629146
bnf_get_gen 1680304
zv_copy 1687956
vec_ei 1714697
mkvecsmall5 1718715
gsubgs 1731077
nf_get_roundG 1748873
abgrp_get_gen 1765017
ellff_get_field 1790577
modpr_get_p 1887627
get_F2x_degree 1928486
killblock 1957642
Flx_div 1999781
ellnf_get_nf 2027235
bnr_get_bid 2046089
Flv_copy 2059225
ulogint 2079499
ell_get_j 2126269
bid_get_MOD 2157256
bid_get_sprk 2157988
ZXQ_mul 2166472
get_F2x_var 2168623
bid_get_fact2 2201575
gc_slice 2211526
pol_xn 2254008
pari_realloc_ip 2349201
bid_get_archp 2397125
bid_get_fact 2498931
rnf_get_degree 2506335
bnr_get_cyc 2522572
ell_get_b4 2550293
mul_content 2657753
cyc_get_expo 2757550
hash_str 2782958
sqrtnr 2810829
bnr_get_clgp 2830249
zero_Flm 2831095
rnf_get_pol 2845192
vecslicepermute 2858969
znstar_get_pe 2869063
F2x_equal1 2873907
bnf_get_logfu 2874764
RgX_coeff 2889731
gisdouble 2996479
Fq_red 3106172
bit_accuracy_mul 3175733
ZV_to_zv 3211715
identity_perm 3243440
F3m_coeff 3255598
zero_Flx 3255612
mkpolmod 3262564
identity_zv 3267803
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307721
get_FpX_mod 3387852
vec_append 3469036
zero_F2v 3656469
bid_get_U 3680234
bnf_get_cyc 3686590
bnr_get_bnf 3710947
nf_get_index 3713804
perm_inv 3747497
pol_1 3753713
ell_get_b6 3863192
pol_x 3865398
mulsubii 3893177
vec_to_vecsmall 4041783
vecsmall_append 4114760
F2x_equal 4137516
sqrfrac 4206150
mkcol2s 4416244
FpXQX_renormalize 4688955
pol1_F2x 4768153
mkmat 4781365
qfb_disc3 4995313
mkfraccopy 5009238
is_rational_t 5020084
bnf_get_clgp 5375435
nf_get_zkprimpart 5416599
nf_get_zkden 5462400
FpX_div 5582208
bid_get_cyc 5739827
bid_get_grp 5804679
pari_stack_delete 5883080
col_ei 5925708
isintm1 6087179
pari_stack_init 6347889
Flm_copy 6434544
sqrti 6613453
get_FpX_var 6952126
get_FpX_degree 6969207
RgX_div 6998920
vecsmall_lexcmp 7043256
ZM_lll 7136742
RgX_gtofp 7166475
znstar_get_faN 7334819
vecsmall_copy 7341110
ell_get_b2 7371390
ZX_is_monic 7670786
zc_to_ZC 7910789
vecsmall_to_col 7925333
znstar_get_conreycyc 7982108
mkintmod 8066603
checkell_i 8104005
Q_abs 8125661
ZV_ZV_mod 8147226
Flx_equal1 8200813
RgM_gtofp 8258222
F2m_coeff 8357117
Flm_row 8743455
cxtofp 9095283
veclast 9374230
ismpzero 9712874
is_intreal_t 9712980
const_col 9730146
nf_get_invzk 9775416
bnf_get_nf 9866291
RgM_dimensions 9954607
mkvec4 10156580
ell_get_a4 10325139
ell_get_a6 10371099
mkcol 10656533
ZC_hnfrem 10697468
mul_denom 10753613
ell_get_c4 11018917
ell_get_a2 11108721
Fp_addmul 11216118
ser_isexactzero 11434317
gc_INT_affii 11581100
vectrunc_init 11767901
pr_get_gen 12072538
abgrp_get_cyc 12231250
F2v_clear 12360864
F2x_clear 12360873
nbits2nlong 12771317
ell_get_a3 12863743
zeropol 12923959
ell_get_c6 13474666
gmax_shallow 13510227
modpr_get_T 13867111
zeromatcopy 14379924
closure_get_frame 14692182
rowpermute 14760071
ell_get_type 14946069
Fp_div 15034048
Fp_divu 15128543
mkvec5 15187693
vectrunc_append 15858770
pr_get_e 16167763
ell_get_disc 16816339
matslice 16825127
ell_get_a1 17049176
pr_is_inert 17224498
pol0_F2x 17308910
normalize_frac 17573905
isint1 17996571
Fp_center_i 18040831
cxcompotor 18242316
qfb_disc 18502530
mkvecsmall4 18664313
const_vecsmall 18861666
Fp_double 20791451
vecpermute 21111738
Flx_div_pre 21727120
nf_get_M 21741695
RgM_shallowcopy 22228323
RgX_is_ZX 22392240
Fp_inv 23415721
nf_get_r1 23466776
ZV_isscalar 23675809
gmulgs 23887577
get_Flx_mod 25515591
pr_get_f 26444717
RgX_equal_var 27139598
pol_0 27228140
shallowcopy 27897478
mkqfb 27928745
zerovec 29348396
modpr_get_pr 31236543
hash_str_len 31620702
submulii 31985143
RgV_is_ZV 32097193
Fp_neg 32668913
mkmat2 33655977
RgC_gtofp 34036932
const_vec 34647553
polx_Flx 37515195
lincombii 38269630
znstar_get_N 38658713
zero_zv 39498541
mkfrac 42737900
powii 43130167
is_vec_t 44045821
closure_is_variadic 45952423
absfrac 47978645
guncloneNULL 49242389
pr_get_tau 49774109
ell_is_inf 50192207
mkmat22 50270673
QV_isscalar 54419735
pol1_Flx 55769373
addmuliu_inplace 59569557
submuliu_inplace 60081210
is_real_t 61900630
zero_Flv 61976974
Fp_sqr 63736347
F2x_copy 63952362
qfb_is_qfi 64517927
Fp_mulu 65421797
gtodouble 66256055
get_Flx_var 68295447
mkvec 68944623
nf_get_degree 71378921
Fp_center 77266313
vecsmallpermute 78756365
rowslice 79447289
perm_mul 80952483
get_Flx_degree 82201452
Fp_red 82926828
gtos 85878407
sqrtr 87180800
is_noncalc_t 88519328
mkcomplex 92032663
pr_get_p 92761872
cxnorm 94251100
dbllog2r 94348770
nf_get_pol 98129737
vecsmalltrunc_append 100802578
gc_all 102463945
RgX_copy 102877103
mkvecsmall3 103280307
F2v_set 104113301
cgiv 105493141
prec2nbits 106959351
vecsmall_prefixcmp 108088071
pol0_Flx 111679536
mkvec3 119710203
gaddgs 123271157
both_odd 123434507
zerocol 125195492
F2x_renormalize 127010335
nchar2nlong 127858951
F2x_set 129768746
equalim1 139547190
mkvecsmall 140392628
bit_prec 143413300
FpX_renormalize 147091789
mkcol2 157062345
ZX_renormalize 157603617
nbrows 158351401
leading_coeff 169746761
Flx_copy 175933975
Fp_add 183263113
nbits2prec 189024029
Fp_sub 201343529
Fp_mul 203750212
mkvec2 213624259
vecsmalltrunc_init 240459627
gc_GEN 247180038
mkvecsmall2 257023810
gtofp 257228121
gmulgu 283360013
closure_get_data 306198826
closure_get_oper 306220916
closure_codestr 306237320
is_universal_constant 326655005
lgcols 352771234
closure_arity 356677738
is_scalar_t 404088116
lg_increase 435483362
bin_copy 473114760
pari_free 487475133
is_bigint 574407258
leafcopy_avma 593542398
vecslice 657230817
F2v_coeff 664427044
F2x_coeff 670966657
pari_malloc 723437640
is_matvec_t 744278198
pari_stack_new 910659571
GENbinbase 919471316
pari_stack_alloc 1006028674
pari_stack_base 1011884586
gc_leaf 1161291165
equali1 1172076318
nbits2extraprec 1497704495
gc_upto 1973349171
odd 2123674694
is_pm1 2218237363
lgpol 2623097120
isintzero 2849046661
bit_accuracy 3142977849
gc_INT 4139011384
prec2lg 4566326440
is_const_t 5003201424
degpol 5512616479
icopy_avma 8055290264
remsBIL 8148089870
divsBIL 8239889148
isonstack 8363315452
is_recursive_t 9116231252

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