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
F2m_coeff 8356108
F2m_copy 200652
F2m_flip 1553424
F2m_set 798
F2v_clear 12360398
F2v_coeff 664421544
F2v_copy 4487
F2v_ei 42
F2v_flip 1553424
F2v_set 104112675
F2v_to_F2x 37800
F2xX_shift 0
F2x_clear 12360388
F2x_coeff 671050587
F2x_copy 64008868
F2x_div 1557110
F2x_equal 4142934
F2x_equal1 2873689
F2x_flip 1553424
F2x_renormalize 127204894
F2x_set 129820193
F2xqX_div 33173
F3m_coeff 3255555
F3m_copy 0
F3m_set 0
Flm_copy 6434493
Flm_row 8743115
Flv_copy 2059158
Flx_constant 1091610
Flx_copy 175862316
Flx_div 1999804
Flx_div_pre 21708349
Flx_equal1 8196106
Flx_lead 1068191
Flx_mulu 1105458
FlxqX_div 0
FlxqX_div_pre 165414
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4692902
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5581977
FpX_renormalize 147048220
Fp_add 183599342
Fp_addmul 11256580
Fp_center 77399141
Fp_center_i 18042862
Fp_div 15036850
Fp_divu 15131431
Fp_double 20914687
Fp_halve 247271
Fp_inv 23435998
Fp_invsafe 1097234
Fp_mul 203177050
Fp_muls 17780
Fp_mulu 68272543
Fp_neg 32671841
Fp_red 82929541
Fp_sqr 64521891
Fp_sub 201576049
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 572185
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 445018
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 367934
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 3106655
Fq_to_FpXQ 73652
GENbinbase 918983254
QV_isscalar 54420408
Q_abs 8061036
Q_abs_shallow 120229
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619945
RgC_gtofp 34031016
RgC_gtomp 574
RgM_dimensions 9955043
RgM_fpnorml2 22654
RgM_gtofp 8257220
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22234582
RgV_gtofp 56
RgV_is_QV 142001
RgV_is_ZV 32095991
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210269
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102486983
RgX_div 6997261
RgX_equal_var 26880497
RgX_fpnorml2 61604
RgX_gtofp 7164074
RgX_is_QX 399943
RgX_is_ZX 22315346
RgX_is_monomial 1320014
RgX_is_rational 68155
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
RgX_to_RgV 140
Rg_col_ei 1451072
Rg_to_Fq 756
ZC_hnfrem 10697593
ZM_ZV_mod 610752
ZM_hnfrem 401367
ZM_lll 7117331
ZV_ZV_mod 8147329
ZV_dvd 23485
ZV_isscalar 23675241
ZV_to_zv 3211716
ZXQ_mul 2166297
ZXQ_sqr 960617
ZX_equal1 10488
ZX_is_monic 7319907
ZX_renormalize 157553626
Z_ispower 98
Z_issquare 509454
abgrp_get_cyc 12231298
abgrp_get_gen 1765034
abgrp_get_no 406735
absfrac 46991361
absfrac_shallow 28237
addmuliu 541644
addmuliu_inplace 59633803
affc_fixlg 249622
affgr 899594
bid_get_MOD 2157267
bid_get_U 3680241
bid_get_arch 41188
bid_get_archp 2397131
bid_get_cyc 5739845
bid_get_fact 2498947
bid_get_fact2 2201587
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804695
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157990
bin_copy 472875266
bit_accuracy 3142823938
bit_accuracy_mul 3175715
bit_prec 143390839
bnf_get_clgp 5375480
bnf_get_cyc 3686615
bnf_get_fu 25859
bnf_get_fu_nocheck 289089
bnf_get_gen 1680321
bnf_get_logfu 2874781
bnf_get_nf 9866310
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367775
bnf_get_tuN 282996
bnf_get_tuU 303576
bnr_get_bid 2046099
bnr_get_bnf 3710953
bnr_get_clgp 2830245
bnr_get_cyc 2522573
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399076
bnr_get_no 277489
both_odd 124146885
cbrtr 0
cbrtr_abs 0
cgetalloc 10136
cgetc 975461
cgiv 105483687
checkell_i 8104058
closure_arity 356559719
closure_codestr 306144226
closure_get_code 28
closure_get_data 306090585
closure_get_dbg 13660
closure_get_frame 14734947
closure_get_oper 306109992
closure_get_text 37150
closure_is_variadic 45931007
col_ei 5925297
coltrunc_init 740257
const_col 9730086
const_vec 34677489
const_vecsmall 18860506
constant_coeff 1441241
cxcompotor 18238273
cxnorm 94099084
cxtofp 9093203
cxtoreal 337208
cyc_get_expo 2757497
cyclic_perm 99932
dbllog2r 94332550
degpol 5540774167
div_content 58510
divsBIL 8246772077
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 17049199
ell_get_a2 11108730
ell_get_a3 12863766
ell_get_a4 10325148
ell_get_a6 10371108
ell_get_b2 7371403
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11019112
ell_get_c6 13474805
ell_get_disc 16815619
ell_get_j 2126269
ell_get_type 14946322
ell_is_inf 50251239
ellff_get_a4a6 551467
ellff_get_field 1790624
ellinf 913928
ellnf_get_bnf 119
ellnf_get_nf 2027254
equali1 1169467941
equalim1 139568117
err_get_compo 294
err_get_num 62596
gaddgs 123270574
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80416
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 246748880
gc_INT 4137050044
gc_INT_affii 11591674
gc_all 102550558
gc_leaf 1167604673
gc_slice 2211203
gc_upto 1971712637
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 761920
gdivsg 559711
gen_I 1268851
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928575
get_F2x_mod 3307667
get_F2x_var 2168725
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 83563075
get_Flx_mod 25502964
get_Flx_var 68255880
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 6969492
get_FpX_mod 3387868
get_FpX_var 6952568
gisdouble 2995147
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 898202
gminsg 0
gmulgs 23817928
gmulgu 283360013
gsubgs 1731935
gtodouble 66249251
gtofp 257186311
gtomp 22428
gtos 85865486
gtou 100707
guncloneNULL 49830615
guncloneNULL_deep 1511166
gval 6230
hash_str 2757674
hash_str_len 31655924
icopy_avma 8051612353
idealchineseinit 5427
idealred 138812
identity_ZV 8120
identity_perm 3243040
identity_zv 3267403
inf_get_sign 1453189
inv_content 0
is_bigint 574356973
is_const_t 5008215584
is_extscalar_t 6904
is_intreal_t 9702627
is_matvec_t 742957725
is_noncalc_t 88514675
is_pm1 2217790977
is_qfb_t 0
is_rational_t 5017644
is_real_t 61900626
is_recursive_t 9105313796
is_scalar_t 403470645
is_universal_constant 326845039
is_vec_t 43963757
isint1 17987123
isintm1 6086470
isintzero 2849782518
ismpzero 9702531
isonstack 8367932837
killblock 1959592
leading_coeff 169338728
leafcopy_avma 594490646
lg_increase 444376699
lgcols 352687800
lgpol 2632521584
lincombii 38260871
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 755028
matpascal 4683
matslice 16824702
mkcol 10653493
mkcol2 156987587
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33577
mkcols 40411
mkcomplex 92007415
mkerr 0
mkfrac 41923554
mkfraccopy 4999678
mkfracss 1209563
mkintmod 8066783
mkintmodu 1834
mkmat 4780192
mkmat2 33665717
mkmat22 50259265
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122302
mkmoo 108897
mkoo 1332042
mkpadic 2009
mkpolmod 3075585
mkqfb 27927672
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69388674
mkvec2 214259037
mkvec2copy 114529
mkvec2s 220726
mkvec3 123901190
mkvec3s 524441
mkvec4 10150249
mkvec4s 21
mkvec5 15187651
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140264129
mkvecsmall2 257056033
mkvecsmall3 103273907
mkvecsmall4 18694202
mkvecsmall5 1718713
modpr_get_T 13867143
modpr_get_p 1887627
modpr_get_pr 31236608
mul_content 2657501
mul_denom 10709738
mulsubii 3892994
nbits2extraprec 1498561163
nbits2ndec 228
nbits2nlong 12755015
nbits2prec 188996648
nbrows 158266372
nchar2nlong 127920723
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304729
nf_get_M 21745778
nf_get_Tr 23282
nf_get_degree 71377020
nf_get_diff 4445
nf_get_disc 463508
nf_get_index 3712013
nf_get_invzk 9774846
nf_get_pol 98120879
nf_get_r1 23466249
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628781
nf_get_roundG 1748408
nf_get_sign 519600
nf_get_varn 1503787
nf_get_zk 4382
nf_get_zkden 5462136
nf_get_zkprimpart 5416277
normalize_frac 17311573
odd 2124396282
pari_calloc 47770
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 487241153
pari_malloc 723343205
pari_realloc 1880
pari_realloc_ip 2357698
pari_stack_alloc 1006443587
pari_stack_base 1012275606
pari_stack_delete 5891013
pari_stack_init 6374461
pari_stack_new 911098539
pari_stack_pushp 5821
perm_conj 418299
perm_inv 3747350
perm_mul 80953124
perm_sqr 728
pol0_F2x 17313050
pol0_Flx 111619608
pol1_F2x 4769198
pol1_Flx 55734955
pol_0 27123722
pol_1 3752544
pol_x 3860475
pol_xn 2252806
pol_xnall 294
polx_F2x 1073372
polx_Flx 37501380
polx_zx 0
polxn_Flx 371
powIs 596435
powii 43130020
pr_get_e 16167243
pr_get_f 26444338
pr_get_gen 12072519
pr_get_p 92760896
pr_get_tau 49773642
pr_is_inert 17224390
pr_norm 1090482
prec2lg 4568258641
prec2nbits 106959836
prec2nbits_mul 581097
prec2ndec 9778
precdbl 476360
qfb_disc 18502545
qfb_disc3 4994742
qfb_is_qfi 64526778
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8155340183
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 763897
row_i 987
rowcopy 204988
rowpermute 14758484
rowslice 79468261
rowslicepermute 234583
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27896701
sqrfrac 4150952
sqrti 6612730
sqrtnr 2810518
sqrtr 86935893
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60144280
truecoef 0
trunc_safe 0
ulogint 2071170
upr_norm 346134
uutoQ 1602144
vec_append 3468976
vec_ei 1714738
vec_lengthen 18960
vec_prepend 313926
vec_setconst 0
vec_shorten 11556
vec_to_vecsmall 4039443
veclast 9374237
vecmodii 0
vecmoduu 49784
vecpermute 21111934
vecreverse 697305
vecreverse_inplace 2605
vecslice 657561475
vecslicepermute 2858724
vecsmall_append 4114681
vecsmall_coincidence 0
vecsmall_concat 1464516
vecsmall_copy 7341216
vecsmall_ei 585110
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1177438
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75754
vecsmall_to_col 7925319
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78756937
vecsmalltrunc_append 100879802
vecsmalltrunc_init 242180759
vecsplice 385020
vectrunc_append 15859828
vectrunc_append_batch 9667
vectrunc_init 11767371
zc_to_ZC 7910773
zero_F2m 0
zero_F2m_copy 845244
zero_F2v 3656398
zero_F2x 1181
zero_Flm 2830675
zero_Flm_copy 238314
zero_Flv 61976707
zero_Flx 3255974
zero_zm 0
zero_zv 39496940
zero_zx 0
zerocol 125150326
zeromat 108958
zeromatcopy 14377077
zeropadic 857585
zeropadic_shallow 17150
zeropol 12867467
zeroser 138992
zerovec 29348356
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 1687892
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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