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
F2m_coeff 8357117
F2m_copy 200652
F2m_flip 1553797
F2m_set 798
F2v_clear 12360864
F2v_coeff 664427044
F2v_copy 4487
F2v_ei 42
F2v_flip 1553797
F2v_set 104113301
F2v_to_F2x 37963
F2xX_shift 0
F2x_clear 12360873
F2x_coeff 670966657
F2x_copy 63952362
F2x_div 1559136
F2x_equal 4137516
F2x_equal1 2873907
F2x_flip 1553797
F2x_renormalize 127010335
F2x_set 129768746
F2xqX_div 33173
F3m_coeff 3255598
F3m_copy 0
F3m_set 0
Flm_copy 6434544
Flm_row 8743455
Flv_copy 2059225
Flx_constant 1091604
Flx_copy 175933975
Flx_div 1999781
Flx_div_pre 21727120
Flx_equal1 8200813
Flx_lead 1069566
Flx_mulu 1105461
FlxqX_div 0
FlxqX_div_pre 165413
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4688955
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582208
FpX_renormalize 147091789
Fp_add 183263113
Fp_addmul 11216118
Fp_center 77266313
Fp_center_i 18040831
Fp_div 15034048
Fp_divu 15128543
Fp_double 20791451
Fp_halve 247271
Fp_inv 23415721
Fp_invsafe 1097242
Fp_mul 203750212
Fp_muls 17780
Fp_mulu 65421797
Fp_neg 32668913
Fp_red 82926828
Fp_sqr 63736347
Fp_sub 201343529
FqXQ_add 0
FqXQ_div 0
FqXQ_inv 0
FqXQ_invsafe 0
FqXQ_mul 22766
FqXQ_pow 0
FqXQ_sqr 0
FqXQ_sub 0
FqX_Fp_mul 576300
FqX_Fq_mul 427297
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38566
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 447454
FqX_factor 140960
FqX_factor_squarefree 7
FqX_gcd 8288
FqX_get_red 6090
FqX_halfgcd 0
FqX_halve 19411
FqX_integ 0
FqX_is_squarefree 683802
FqX_mul 368761
FqX_mulu 21942
FqX_neg 24956
FqX_normalize 4144
FqX_powu 1295
FqX_red 25354
FqX_rem 37743
FqX_roots 7273
FqX_sqr 71855
FqX_sub 68607
FqX_to_mod 175
FqXn_exp 0
FqXn_expint 6590
FqXn_inv 7126
FqXn_mul 263403
FqXn_sqr 0
Fq_red 3106172
Fq_to_FpXQ 73652
GENbinbase 919471316
QV_isscalar 54419735
Q_abs 8125661
Q_abs_shallow 120232
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619952
RgC_gtofp 34036932
RgC_gtomp 574
RgM_dimensions 9954607
RgM_fpnorml2 22788
RgM_gtofp 8258222
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22228323
RgV_gtofp 56
RgV_is_QV 142044
RgV_is_ZV 32097193
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210271
RgXQX_div 1904
RgXQX_rem 127914
RgX_coeff 2889731
RgX_copy 102877103
RgX_div 6998920
RgX_equal_var 27139598
RgX_fpnorml2 63071
RgX_gtofp 7166475
RgX_is_QX 400063
RgX_is_ZX 22392240
RgX_is_monomial 1328259
RgX_is_rational 68290
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479448
RgX_shift_inplace_init 479448
RgX_to_RgV 140
Rg_col_ei 1451103
Rg_to_Fq 756
ZC_hnfrem 10697468
ZM_ZV_mod 610726
ZM_hnfrem 401365
ZM_lll 7136742
ZV_ZV_mod 8147226
ZV_dvd 23485
ZV_isscalar 23675809
ZV_to_zv 3211715
ZXQ_mul 2166472
ZXQ_sqr 961456
ZX_equal1 10488
ZX_is_monic 7670786
ZX_renormalize 157603617
Z_ispower 98
Z_issquare 509453
abgrp_get_cyc 12231250
abgrp_get_gen 1765017
abgrp_get_no 406738
absfrac 47978645
absfrac_shallow 28237
addmuliu 541563
addmuliu_inplace 59569557
affc_fixlg 249619
affgr 899650
bid_get_MOD 2157256
bid_get_U 3680234
bid_get_arch 41188
bid_get_archp 2397125
bid_get_cyc 5739827
bid_get_fact 2498931
bid_get_fact2 2201575
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804679
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157988
bin_copy 473114760
bit_accuracy 3142977849
bit_accuracy_mul 3175733
bit_prec 143413300
bnf_get_clgp 5375435
bnf_get_cyc 3686590
bnf_get_fu 25859
bnf_get_fu_nocheck 289087
bnf_get_gen 1680304
bnf_get_logfu 2874764
bnf_get_nf 9866291
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367771
bnf_get_tuN 282996
bnf_get_tuU 303578
bnr_get_bid 2046089
bnr_get_bnf 3710947
bnr_get_clgp 2830249
bnr_get_cyc 2522572
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399082
bnr_get_no 277491
both_odd 123434507
cbrtr 0
cbrtr_abs 0
cgetalloc 10157
cgetc 975445
cgiv 105493141
checkell_i 8104005
closure_arity 356677738
closure_codestr 306237320
closure_get_code 28
closure_get_data 306198826
closure_get_dbg 13660
closure_get_frame 14692182
closure_get_oper 306220916
closure_get_text 37150
closure_is_variadic 45952423
col_ei 5925708
coltrunc_init 740257
const_col 9730146
const_vec 34647553
const_vecsmall 18861666
constant_coeff 1445625
cxcompotor 18242316
cxnorm 94251100
cxtofp 9095283
cxtoreal 337206
cyc_get_expo 2757550
cyclic_perm 99932
dbllog2r 94348770
degpol 5512616479
div_content 58511
divsBIL 8239889148
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 17049176
ell_get_a2 11108721
ell_get_a3 12863743
ell_get_a4 10325139
ell_get_a6 10371099
ell_get_b2 7371390
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11018917
ell_get_c6 13474666
ell_get_disc 16816339
ell_get_j 2126269
ell_get_type 14946069
ell_is_inf 50192207
ellff_get_a4a6 551449
ellff_get_field 1790577
ellinf 913922
ellnf_get_bnf 119
ellnf_get_nf 2027235
equali1 1172076318
equalim1 139547190
err_get_compo 294
err_get_num 62596
gaddgs 123271157
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80413
gal_get_invvdm 27874
gal_get_mod 23870
gal_get_orders 6706
gal_get_p 6118
gal_get_pol 36428
gal_get_roots 32844
gc_GEN 247180038
gc_INT 4139011384
gc_INT_affii 11581100
gc_all 102463945
gc_leaf 1161291165
gc_slice 2211526
gc_upto 1973349171
gchar_copy_precs 1225
gchar_get_DLdata 190673
gchar_get_S 36995
gchar_get_U 0
gchar_get_Ui 10983
gchar_get_basis 32816
gchar_get_bnf 205373
gchar_get_cyc 16177
gchar_get_evalprec 4011
gchar_get_hnf 0
gchar_get_loccyc 50519
gchar_get_m0 3318
gchar_get_mod 8225
gchar_get_modP 4095
gchar_get_nalg 2044
gchar_get_nc 37261
gchar_get_nf 243946
gchar_get_nfprec 13468
gchar_get_nfree 322
gchar_get_nm 1869
gchar_get_ns 36995
gchar_get_ntors 322
gchar_get_prec 18795
gchar_get_r1 17444
gchar_get_r2 623
gchar_get_sfu 1743
gchar_get_u0 4252
gchar_get_zm 281911
gchar_set_HUUi 630
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_set_evalprec 1813
gchar_set_m0 945
gchar_set_nalg 630
gchar_set_nf 2110
gchar_set_nfprec 2968
gchar_set_nfree 630
gchar_set_ntors 630
gchar_set_prec 1225
gchar_set_u0 2121
gcmpgs 761926
gdivsg 561180
gen_I 1268878
gener_Fq_local 29945
gequalgs 29176
get_F2x_degree 1928486
get_F2x_mod 3307721
get_F2x_var 2168623
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82201452
get_Flx_mod 25515591
get_Flx_var 68295447
get_FlxqX_degree 317580
get_FlxqX_mod 8033
get_FlxqX_var 264435
get_FpXQX_degree 3589
get_FpXQX_mod 146583
get_FpXQX_var 51630
get_FpX_degree 6969207
get_FpX_mod 3387852
get_FpX_var 6952126
gisdouble 2996479
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 901203
gminsg 0
gmulgs 23887577
gmulgu 283360013
gsubgs 1731077
gtodouble 66256055
gtofp 257228121
gtomp 22428
gtos 85878407
gtou 100707
guncloneNULL 49242389
guncloneNULL_deep 1509369
gval 6237
hash_str 2782958
hash_str_len 31620702
icopy_avma 8055290264
idealchineseinit 5427
idealred 139133
identity_ZV 8120
identity_perm 3243440
identity_zv 3267803
inf_get_sign 1453283
inv_content 0
is_bigint 574407258
is_const_t 5003201424
is_extscalar_t 6904
is_intreal_t 9712980
is_matvec_t 744278198
is_noncalc_t 88519328
is_pm1 2218237363
is_qfb_t 0
is_rational_t 5020084
is_real_t 61900630
is_recursive_t 9116231252
is_scalar_t 404088116
is_universal_constant 326655005
is_vec_t 44045821
isint1 17996571
isintm1 6087179
isintzero 2849046661
ismpzero 9712874
isonstack 8363315452
killblock 1957642
leading_coeff 169746761
leafcopy_avma 593542398
lg_increase 435483362
lgcols 352771234
lgpol 2623097120
lincombii 38269630
locs_get_Lgenfil 1288
locs_get_Lsprk 193935
locs_get_cyc 52136
locs_get_famod 1288
locs_get_m_infty 209475
locs_get_mod 8225
logint 755019
matpascal 4683
matslice 16825127
mkcol 10656533
mkcol2 157062345
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33582
mkcols 40411
mkcomplex 92032663
mkerr 0
mkfrac 42737900
mkfraccopy 5009238
mkfracss 1209563
mkintmod 8066603
mkintmodu 1834
mkmat 4781365
mkmat2 33655977
mkmat22 50270673
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122313
mkmoo 108907
mkoo 1332158
mkpadic 2009
mkpolmod 3262564
mkqfb 27928745
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 68944623
mkvec2 213624259
mkvec2copy 114537
mkvec2s 220750
mkvec3 119710203
mkvec3s 524441
mkvec4 10156580
mkvec4s 21
mkvec5 15187693
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140392628
mkvecsmall2 257023810
mkvecsmall3 103280307
mkvecsmall4 18664313
mkvecsmall5 1718715
modpr_get_T 13867111
modpr_get_p 1887627
modpr_get_pr 31236543
mul_content 2657753
mul_denom 10753613
mulsubii 3893177
nbits2extraprec 1497704495
nbits2ndec 228
nbits2nlong 12771317
nbits2prec 189024029
nbrows 158351401
nchar2nlong 127858951
ndec2nbits 8270
ndec2nlong 41626
ndec2prec 33356
nfV_to_scalar_or_alg 26300
nf_get_G 304875
nf_get_M 21741695
nf_get_Tr 23350
nf_get_degree 71378921
nf_get_diff 4445
nf_get_disc 464167
nf_get_index 3713804
nf_get_invzk 9775416
nf_get_pol 98129737
nf_get_r1 23466776
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1629146
nf_get_roundG 1748873
nf_get_sign 519602
nf_get_varn 1503820
nf_get_zk 4382
nf_get_zkden 5462400
nf_get_zkprimpart 5416599
normalize_frac 17573905
odd 2123674694
pari_calloc 48120
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
pari_err_DIM 718
pari_err_DOMAIN 2876
pari_err_FILE 0
pari_err_FILEDESC 36
pari_err_FLAG 98
pari_err_IMPL 539
pari_err_INV 20025
pari_err_IRREDPOL 63
pari_err_MAXPRIME 0
pari_err_MODULUS 1316
pari_err_OP 406
pari_err_OVERFLOW 156
pari_err_PACKAGE 0
pari_err_PREC 238
pari_err_PRIME 98
pari_err_PRIORITY 245
pari_err_ROOTS0 63
pari_err_SQRTN 7084
pari_err_TYPE 15370
pari_err_TYPE2 3493
pari_err_VAR 371
pari_free 487475133
pari_malloc 723437640
pari_realloc 1887
pari_realloc_ip 2349201
pari_stack_alloc 1006028674
pari_stack_base 1011884586
pari_stack_delete 5883080
pari_stack_init 6347889
pari_stack_new 910659571
pari_stack_pushp 5842
perm_conj 418299
perm_inv 3747497
perm_mul 80952483
perm_sqr 728
pol0_F2x 17308910
pol0_Flx 111679536
pol1_F2x 4768153
pol1_Flx 55769373
pol_0 27228140
pol_1 3753713
pol_x 3865398
pol_xn 2254008
pol_xnall 294
polx_F2x 1074393
polx_Flx 37515195
polx_zx 0
polxn_Flx 371
powIs 620095
powii 43130167
pr_get_e 16167763
pr_get_f 26444717
pr_get_gen 12072538
pr_get_p 92761872
pr_get_tau 49774109
pr_is_inert 17224498
pr_norm 1090621
prec2lg 4566326440
prec2nbits 106959351
prec2nbits_mul 581096
prec2ndec 9778
precdbl 476412
qfb_disc 18502530
qfb_disc3 4995313
qfb_is_qfi 64517927
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8148089870
rnf_get_absdegree 1392746
rnf_get_alpha 1428
rnf_get_degree 2506335
rnf_get_disc 357
rnf_get_idealdisc 1386
rnf_get_index 105
rnf_get_invzk 1225
rnf_get_k 1225
rnf_get_map 135659
rnf_get_nf 786086
rnf_get_nfdegree 21455
rnf_get_nfpol 255354
rnf_get_nfvarn 4886
rnf_get_nfzk 7245
rnf_get_pol 2845192
rnf_get_polabs 327628
rnf_get_ramified_primes 2849
rnf_get_varn 574
rnf_get_zk 4830
row 763901
row_i 987
rowcopy 204988
rowpermute 14760071
rowslice 79447289
rowslicepermute 234589
rowsplice 273
ser_isexactzero 11434317
shallowcopy 27897478
sqrfrac 4206150
sqrti 6613453
sqrtnr 2810829
sqrtr 87180800
sstoQ 1097313
sturm 385
submulii 31985143
submuliu 7700
submuliu_inplace 60081210
truecoef 0
trunc_safe 0
ulogint 2079499
upr_norm 346136
uutoQ 1602144
vec_append 3469036
vec_ei 1714697
vec_lengthen 18960
vec_prepend 313921
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4041783
veclast 9374230
vecmodii 0
vecmoduu 49784
vecpermute 21111738
vecreverse 697304
vecreverse_inplace 2605
vecslice 657230817
vecslicepermute 2858969
vecsmall_append 4114760
vecsmall_coincidence 0
vecsmall_concat 1464647
vecsmall_copy 7341110
vecsmall_ei 585153
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043256
vecsmall_max 1177641
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75748
vecsmall_to_col 7925333
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78756365
vecsmalltrunc_append 100802578
vecsmalltrunc_init 240459627
vecsplice 384983
vectrunc_append 15858770
vectrunc_append_batch 9667
vectrunc_init 11767901
zc_to_ZC 7910789
zero_F2m 0
zero_F2m_copy 845253
zero_F2v 3656469
zero_F2x 1181
zero_Flm 2831095
zero_Flm_copy 238311
zero_Flv 61976974
zero_Flx 3255612
zero_zm 0
zero_zv 39498541
zero_zx 0
zerocol 125195492
zeromat 109000
zeromatcopy 14379924
zeropadic 857460
zeropadic_shallow 17150
zeropol 12923959
zeroser 139013
zerovec 29348396
zerovec_block 29654
zm_copy 0
zm_row 0
zm_to_zxV 0
zm_transpose 266
znstar_get_N 38658713
znstar_get_U 176107
znstar_get_Ui 46788
znstar_get_conreycyc 7982108
znstar_get_conreygen 3290526
znstar_get_cyc 262088
znstar_get_faN 7334819
znstar_get_gen 16150
znstar_get_no 14
znstar_get_pe 2869063
zv_copy 1687956
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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