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 30735-65f72320ad) Lines: 1422 1535 92.6 %
Date: 2026-03-09 09:24:55 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 8156808
F2m_copy 200426
F2m_flip 1554550
F2m_set 798
F2v_clear 12353945
F2v_coeff 661439762
F2v_copy 4487
F2v_ei 42
F2v_flip 1554550
F2v_set 101430747
F2v_to_F2x 38005
F2xX_shift 0
F2x_clear 12353942
F2x_coeff 667959322
F2x_copy 59803149
F2x_div 1571873
F2x_equal 4671419
F2x_equal1 2873933
F2x_flip 1554550
F2x_renormalize 112604197
F2x_set 123309783
F2xqX_div 33173
F3m_coeff 3255658
F3m_copy 0
F3m_set 0
Flm_copy 6434633
Flm_row 8743403
Flv_copy 2554952
Flx_constant 334123
Flx_copy 173152656
Flx_div 1999847
Flx_div_pre 21695934
Flx_equal1 8195836
Flx_lead 979395
Flx_mulu 1105481
FlxqX_div 0
FlxqX_div_pre 165407
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4693327
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582057
FpX_renormalize 145686606
Fp_add 181580687
Fp_addmul 11333825
Fp_center 77402378
Fp_center_i 18039499
Fp_div 15034292
Fp_divu 15128744
Fp_double 21061275
Fp_halve 247271
Fp_inv 23436430
Fp_invsafe 1097239
Fp_mul 201013077
Fp_muls 17780
Fp_mulu 68543880
Fp_neg 31474529
Fp_red 82929108
Fp_sqr 64976157
Fp_sub 203485187
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 572208
FqX_Fq_mul 427281
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38563
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 445016
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 3106666
Fq_to_FpXQ 73652
GENbinbase 915832975
QV_isscalar 54421507
Q_abs 8059516
Q_abs_shallow 120216
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619950
RgC_gtofp 34033603
RgC_gtomp 574
RgM_dimensions 9953760
RgM_fpnorml2 22655
RgM_gtofp 8257571
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22234692
RgV_gtofp 56
RgV_is_QV 142000
RgV_is_ZV 32095284
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210271
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2667901
RgX_copy 102480177
RgX_div 6996400
RgX_equal_var 26880171
RgX_fpnorml2 61608
RgX_gtofp 7151277
RgX_is_QX 399936
RgX_is_ZX 22311494
RgX_is_monomial 1318384
RgX_is_rational 68157
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
RgX_to_RgV 140
Rg_col_ei 1451097
Rg_to_Fq 756
ZC_hnfrem 10697484
ZM_ZV_mod 610743
ZM_hnfrem 401397
ZM_lll 7117654
ZV_ZV_mod 8147142
ZV_dvd 23485
ZV_isscalar 23675351
ZV_to_zv 3211716
ZXQ_mul 2166178
ZXQ_sqr 960515
ZX_equal1 10488
ZX_is_monic 7319824
ZX_renormalize 155029410
Z_ispower 98
Z_issquare 509451
abgrp_get_cyc 12231258
abgrp_get_gen 1765021
abgrp_get_no 406731
absfrac 46515985
absfrac_shallow 28237
addmuliu 541534
addmuliu_inplace 59564738
affc_fixlg 249623
affgr 899594
bid_get_MOD 2157245
bid_get_U 3680216
bid_get_arch 41188
bid_get_archp 2397121
bid_get_cyc 5739849
bid_get_fact 2498944
bid_get_fact2 2201564
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804702
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157963
bin_copy 471301926
bit_accuracy 3128959945
bit_accuracy_mul 3175715
bit_prec 143295359
bnf_get_clgp 5375460
bnf_get_cyc 3686604
bnf_get_fu 25859
bnf_get_fu_nocheck 289086
bnf_get_gen 1680310
bnf_get_logfu 2874761
bnf_get_nf 9866317
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367774
bnf_get_tuN 282999
bnf_get_tuU 303580
bnr_get_bid 2046085
bnr_get_bnf 3710942
bnr_get_clgp 2830230
bnr_get_cyc 2522559
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77118
bnr_get_nf 1399072
bnr_get_no 277484
both_odd 124260245
cbrtr 0
cbrtr_abs 0
cgetalloc 10115
cgetc 975458
cgiv 105487157
checkell_i 5593327
closure_arity 356498771
closure_codestr 306144663
closure_get_code 28
closure_get_data 306054741
closure_get_dbg 13653
closure_get_frame 14720558
closure_get_oper 306104137
closure_get_text 37136
closure_is_variadic 45911157
col_ei 5925393
coltrunc_init 740257
const_col 9730140
const_vec 34653894
const_vecsmall 18747364
constant_coeff 1441271
cxcompotor 18210952
cxnorm 91202724
cxtofp 9079541
cxtoreal 337206
cyc_get_expo 2757552
cyclic_perm 99911
dbllog2r 92842829
degpol 5494766907
div_content 58510
divsBIL 8110304989
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997100
ell_get_a2 7106191
ell_get_a3 8814067
ell_get_a4 8536732
ell_get_a6 10370970
ell_get_b2 7371038
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11018409
ell_get_c6 13474826
ell_get_disc 16814283
ell_get_j 2126269
ell_get_type 12499119
ell_is_inf 49463687
ellff_get_a4a6 800045
ellff_get_field 2036907
ellinf 1208472
ellnf_get_bnf 119
ellnf_get_nf 2027223
equali1 1166301140
equalim1 139506033
err_get_compo 294
err_get_num 62582
gaddgs 123254031
gal_get_den 27867
gal_get_e 91
gal_get_gen 15489
gal_get_group 80414
gal_get_invvdm 27874
gal_get_mod 23870
gal_get_orders 6705
gal_get_p 6118
gal_get_pol 36428
gal_get_roots 32844
gc_GEN 245537033
gc_INT 4134753482
gc_INT_affii 11584579
gc_all 102399106
gc_leaf 1130121514
gc_slice 2205994
gc_upto 1944768135
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 761923
gdivsg 531590
gen_I 1268243
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928038
get_F2x_mod 2489690
get_F2x_var 2534254
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82058200
get_Flx_mod 25498970
get_Flx_var 68375183
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 6968939
get_FpX_mod 3387807
get_FpX_var 6954932
gisdouble 2996043
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 877886
gminsg 0
gmulgs 23856066
gmulgu 283104681
gsubgs 1730186
gtodouble 60942810
gtofp 254463540
gtomp 22428
gtos 85855635
gtou 100658
guncloneNULL 49825907
guncloneNULL_deep 1508143
gval 6230
hash_str 2741929
hash_str_len 31637065
icopy_avma 8046507964
idealchineseinit 5427
idealred 138813
identity_ZV 8120
identity_perm 3242993
identity_zv 3267345
inf_get_sign 1453272
inv_content 0
is_bigint 571811479
is_const_t 4983785358
is_extscalar_t 6876
is_intreal_t 9585526
is_matvec_t 741384913
is_noncalc_t 88450733
is_pm1 2215041015
is_qfb_t 0
is_rational_t 5015338
is_real_t 61897672
is_recursive_t 9070462756
is_scalar_t 403350751
is_universal_constant 326829562
is_vec_t 43931865
isint1 17586720
isintm1 5711173
isintzero 2840075353
ismpzero 9585431
isonstack 8300937555
killblock 1958460
leading_coeff 171566162
leafcopy_avma 590355655
lg_increase 443585004
lgcols 352694904
lgpol 2605222353
lincombii 38269240
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 754942
matpascal 3983
matslice 16825333
mkcol 10652825
mkcol2 157003314
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33583
mkcols 40411
mkcomplex 91607980
mkerr 0
mkfrac 41640810
mkfraccopy 4999682
mkfracss 1209563
mkintmod 8061590
mkintmodu 1834
mkmat 4779883
mkmat2 33665515
mkmat22 50262460
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122317
mkmoo 108900
mkoo 1332130
mkpadic 2009
mkpolmod 3075534
mkqfb 27928333
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69632707
mkvec2 212220890
mkvec2copy 114531
mkvec2s 220378
mkvec3 119278928
mkvec3s 524441
mkvec4 10146670
mkvec4s 21
mkvec5 15186610
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131360703
mkvecsmall2 235104836
mkvecsmall3 103267093
mkvecsmall4 18697348
mkvecsmall5 1717612
modpr_get_T 13867215
modpr_get_p 1887627
modpr_get_pr 31236743
mul_content 2656533
mul_denom 10709887
mulsubii 3892744
nbits2extraprec 1458681850
nbits2ndec 228
nbits2nlong 12712133
nbits2prec 186164740
nbrows 158273032
nchar2nlong 127793751
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304829
nf_get_M 21745979
nf_get_Tr 23280
nf_get_degree 71378660
nf_get_diff 4445
nf_get_disc 463516
nf_get_index 3712020
nf_get_invzk 9775051
nf_get_pol 98121985
nf_get_r1 23466430
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628865
nf_get_roundG 1748507
nf_get_sign 519600
nf_get_varn 1503751
nf_get_zk 4382
nf_get_zkden 5462249
nf_get_zkprimpart 5416470
normalize_frac 17206046
odd 2121106918
pari_calloc 47609
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
pari_err_DIM 718
pari_err_DOMAIN 2869
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 485657934
pari_malloc 721724872
pari_realloc 1873
pari_realloc_ip 2348910
pari_stack_alloc 1006203931
pari_stack_base 1012080870
pari_stack_delete 5881188
pari_stack_init 6352897
pari_stack_new 910939685
pari_stack_pushp 5800
perm_conj 418299
perm_inv 3747289
perm_mul 80955521
perm_sqr 728
pol0_F2x 13229226
pol0_Flx 103156723
pol1_F2x 3948496
pol1_Flx 54901435
pol_0 25907600
pol_1 3750953
pol_x 3857938
pol_xn 2249883
pol_xnall 294
polx_F2x 1079000
polx_Flx 37496855
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130155
pr_get_e 16167366
pr_get_f 26444740
pr_get_gen 12072603
pr_get_p 92762193
pr_get_tau 49774184
pr_is_inert 17224458
pr_norm 1090599
prec2lg 4474296035
prec2nbits 103979183
prec2nbits_mul 581079
prec2ndec 9778
precdbl 475633
qfb_disc 18502594
qfb_disc3 4995084
qfb_is_qfi 64480851
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8019469638
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 763895
row_i 987
rowcopy 204988
rowpermute 14758529
rowslice 79465391
rowslicepermute 233997
rowsplice 273
ser_isexactzero 10120354
shallowcopy 27897006
sqrfrac 4148291
sqrti 6611462
sqrtnr 2810329
sqrtr 80384507
sstoQ 1097313
sturm 385
submulii 31985153
submuliu 7700
submuliu_inplace 60074179
truecoef 0
trunc_safe 0
ulogint 1982128
upr_norm 346136
uutoQ 1602144
vec_append 3469034
vec_ei 1714417
vec_lengthen 18960
vec_prepend 313919
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039466
veclast 9372770
vecmodii 0
vecmoduu 49784
vecpermute 21100546
vecreverse 697305
vecreverse_inplace 2605
vecslice 657472515
vecslicepermute 2856768
vecsmall_append 4114739
vecsmall_coincidence 0
vecsmall_concat 1464668
vecsmall_copy 5369078
vecsmall_ei 584810
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043251
vecsmall_max 1163998
vecsmall_min 2352
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75749
vecsmall_to_col 7922790
vecsmall_to_vec 577021
vecsmall_to_vec_inplace 3304
vecsmallpermute 78759293
vecsmalltrunc_append 100793952
vecsmalltrunc_init 242439742
vecsplice 384999
vectrunc_append 15859398
vectrunc_append_batch 9667
vectrunc_init 11767217
zc_to_ZC 7908244
zero_F2m 0
zero_F2m_copy 845061
zero_F2v 3647835
zero_F2x 1181
zero_Flm 2831050
zero_Flm_copy 238317
zero_Flv 59735836
zero_Flx 1427052
zero_zm 0
zero_zv 37303811
zero_zx 0
zerocol 125146656
zeromat 108995
zeromatcopy 14377424
zeropadic 857624
zeropadic_shallow 17150
zeropol 12864817
zeroser 138992
zerovec 29344943
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 2183696
zv_to_ZV 568222
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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