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: 1423 1535 92.7 %
Date: 2026-03-10 09:24:00 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 8157399
F2m_copy 200425
F2m_flip 1554826
F2m_set 798
F2v_clear 12354368
F2v_coeff 661442713
F2v_copy 4487
F2v_ei 42
F2v_flip 1554826
F2v_set 101431283
F2v_to_F2x 37873
F2xX_shift 0
F2x_clear 12354356
F2x_coeff 668017805
F2x_copy 59802843
F2x_div 1572603
F2x_equal 4675756
F2x_equal1 2873696
F2x_flip 1554826
F2x_renormalize 112623274
F2x_set 123340862
F2xqX_div 33173
F3m_coeff 3255555
F3m_copy 0
F3m_set 0
Flm_copy 6434577
Flm_row 8743629
Flv_copy 2554992
Flx_constant 334136
Flx_copy 173152401
Flx_div 1999861
Flx_div_pre 21698658
Flx_equal1 8195733
Flx_lead 979587
Flx_mulu 1105456
FlxqX_div 0
FlxqX_div_pre 165414
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4693009
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582077
FpX_renormalize 145671497
Fp_add 181057203
Fp_addmul 11244235
Fp_center 77378985
Fp_center_i 18032567
Fp_div 15033906
Fp_divu 15128404
Fp_double 20854406
Fp_halve 247271
Fp_inv 23436109
Fp_invsafe 1097251
Fp_mul 200818297
Fp_muls 17780
Fp_mulu 69227527
Fp_neg 31476979
Fp_red 82928955
Fp_sqr 63789729
Fp_sub 202879466
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 572195
FqX_Fq_mul 427296
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38569
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 445021
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 367936
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 3106593
Fq_to_FpXQ 73652
GENbinbase 915828299
QV_isscalar 54420681
Q_abs 8059536
Q_abs_shallow 120209
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619949
RgC_gtofp 34034407
RgC_gtomp 574
RgM_dimensions 9953995
RgM_fpnorml2 22655
RgM_gtofp 8258061
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22234283
RgV_gtofp 56
RgV_is_QV 141999
RgV_is_ZV 32095281
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210272
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2667901
RgX_copy 102480380
RgX_div 6996400
RgX_equal_var 26880173
RgX_fpnorml2 61608
RgX_gtofp 7151354
RgX_is_QX 399938
RgX_is_ZX 22311366
RgX_is_monomial 1318353
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 1451057
Rg_to_Fq 756
ZC_hnfrem 10697531
ZM_ZV_mod 610660
ZM_hnfrem 401428
ZM_lll 7117903
ZV_ZV_mod 8147135
ZV_dvd 23485
ZV_isscalar 23674865
ZV_to_zv 3211713
ZXQ_mul 2166189
ZXQ_sqr 960526
ZX_equal1 10488
ZX_is_monic 7319823
ZX_renormalize 154998693
Z_ispower 98
Z_issquare 509453
abgrp_get_cyc 12231269
abgrp_get_gen 1765018
abgrp_get_no 406733
absfrac 46515895
absfrac_shallow 28237
addmuliu 541590
addmuliu_inplace 59635001
affc_fixlg 249623
affgr 899594
bid_get_MOD 2157253
bid_get_U 3680231
bid_get_arch 41188
bid_get_archp 2397142
bid_get_cyc 5739855
bid_get_fact 2498947
bid_get_fact2 2201570
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804703
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157983
bin_copy 471299520
bit_accuracy 3128426714
bit_accuracy_mul 3175715
bit_prec 143283579
bnf_get_clgp 5375446
bnf_get_cyc 3686600
bnf_get_fu 25858
bnf_get_fu_nocheck 289077
bnf_get_gen 1680306
bnf_get_logfu 2874772
bnf_get_nf 9866315
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367774
bnf_get_tuN 282990
bnf_get_tuU 303573
bnr_get_bid 2046090
bnr_get_bnf 3710942
bnr_get_clgp 2830226
bnr_get_cyc 2522541
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77118
bnr_get_nf 1399066
bnr_get_no 277488
both_odd 124201846
cbrtr 0
cbrtr_abs 0
cgetalloc 10115
cgetc 975459
cgiv 105471828
checkell_i 5593292
closure_arity 356268725
closure_codestr 305870000
closure_get_code 28
closure_get_data 305809598
closure_get_dbg 13653
closure_get_frame 14720307
closure_get_oper 305840835
closure_get_text 37136
closure_is_variadic 45910984
col_ei 5925304
coltrunc_init 740257
const_col 9730109
const_vec 34654355
const_vecsmall 18747562
constant_coeff 1441257
cxcompotor 18211925
cxnorm 91202704
cxtofp 9080042
cxtoreal 337206
cyc_get_expo 2757546
cyclic_perm 99911
dbllog2r 92841749
degpol 5494309382
div_content 58511
divsBIL 8106846927
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997096
ell_get_a2 7106197
ell_get_a3 8814064
ell_get_a4 8536738
ell_get_a6 10370976
ell_get_b2 7371029
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11018005
ell_get_c6 13474344
ell_get_disc 16815162
ell_get_j 2126269
ell_get_type 12499057
ell_is_inf 49420141
ellff_get_a4a6 800041
ellff_get_field 2036914
ellinf 1208491
ellnf_get_bnf 119
ellnf_get_nf 2027245
equali1 1166229902
equalim1 139505922
err_get_compo 294
err_get_num 62581
gaddgs 123254042
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80414
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 245524527
gc_INT 4133338909
gc_INT_affii 11569332
gc_all 102399448
gc_leaf 1130713553
gc_slice 2205970
gc_upto 1944605426
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 761929
gdivsg 531590
gen_I 1268274
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928145
get_F2x_mod 2489612
get_F2x_var 2534351
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82501202
get_Flx_mod 25499393
get_Flx_var 68380562
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 6968685
get_FpX_mod 3387836
get_FpX_var 6954365
gisdouble 2995613
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 877895
gminsg 0
gmulgs 23784242
gmulgu 283104681
gsubgs 1730189
gtodouble 60939704
gtofp 254472787
gtomp 22428
gtos 85855749
gtou 100671
guncloneNULL 49825356
guncloneNULL_deep 1507374
gval 6230
hash_str 2741930
hash_str_len 31636980
icopy_avma 8045086725
idealchineseinit 5427
idealred 138814
identity_ZV 8120
identity_perm 3242653
identity_zv 3267003
inf_get_sign 1453249
inv_content 0
is_bigint 571744487
is_const_t 4981526572
is_extscalar_t 6876
is_intreal_t 9585355
is_matvec_t 741173133
is_noncalc_t 88450942
is_pm1 2215305514
is_qfb_t 0
is_rational_t 5015366
is_real_t 61897668
is_recursive_t 9070391235
is_scalar_t 403350215
is_universal_constant 326457112
is_vec_t 43923133
isint1 17586781
isintm1 5711242
isintzero 2838538448
ismpzero 9585262
isonstack 8298497752
killblock 1958018
leading_coeff 171564716
leafcopy_avma 590667595
lg_increase 440033335
lgcols 352683981
lgpol 2606017906
lincombii 38268783
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 754939
matpascal 3983
matslice 16825399
mkcol 10652861
mkcol2 156986987
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33581
mkcols 40411
mkcomplex 91613809
mkerr 0
mkfrac 41634858
mkfraccopy 4999584
mkfracss 1209563
mkintmod 8061460
mkintmodu 1834
mkmat 4779978
mkmat2 33665629
mkmat22 50260201
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122329
mkmoo 108901
mkoo 1332107
mkpadic 2009
mkpolmod 3075534
mkqfb 27928584
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69668351
mkvec2 211698232
mkvec2copy 114534
mkvec2s 220377
mkvec3 120597458
mkvec3s 524441
mkvec4 10146693
mkvec4s 21
mkvec5 15186535
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131377518
mkvecsmall2 235092964
mkvecsmall3 103263246
mkvecsmall4 18684363
mkvecsmall5 1717645
modpr_get_T 13867134
modpr_get_p 1887627
modpr_get_pr 31236631
mul_content 2657514
mul_denom 10709709
mulsubii 3894201
nbits2extraprec 1458359497
nbits2ndec 228
nbits2nlong 12713888
nbits2prec 186145903
nbrows 158266269
nchar2nlong 127794802
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304791
nf_get_M 21745442
nf_get_Tr 23280
nf_get_degree 71377413
nf_get_diff 4445
nf_get_disc 463514
nf_get_index 3712012
nf_get_invzk 9774856
nf_get_pol 98121979
nf_get_r1 23465959
nf_get_r2 4154
nf_get_ramified_primes 64644
nf_get_roots 1628819
nf_get_roundG 1748465
nf_get_sign 519601
nf_get_varn 1503758
nf_get_zk 4382
nf_get_zkden 5462123
nf_get_zkprimpart 5416326
normalize_frac 17205851
odd 2120518851
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 485663721
pari_malloc 721727319
pari_realloc 1873
pari_realloc_ip 2351909
pari_stack_alloc 1005963775
pari_stack_base 1011840544
pari_stack_delete 5894295
pari_stack_init 6359605
pari_stack_new 910687397
pari_stack_pushp 5800
perm_conj 418299
perm_inv 3747335
perm_mul 80953939
perm_sqr 728
pol0_F2x 13236029
pol0_Flx 103172412
pol1_F2x 3949192
pol1_Flx 54905166
pol_0 25907600
pol_1 3750929
pol_x 3857954
pol_xn 2249914
pol_xnall 294
polx_F2x 1079558
polx_Flx 37498533
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130030
pr_get_e 16167110
pr_get_f 26444122
pr_get_gen 12072431
pr_get_p 92760421
pr_get_tau 49773357
pr_is_inert 17224279
pr_norm 1090520
prec2lg 4471372818
prec2nbits 103971596
prec2nbits_mul 581083
prec2ndec 9778
precdbl 475640
qfb_disc 18502531
qfb_disc3 4995215
qfb_is_qfi 64491091
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8015949573
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 763896
row_i 987
rowcopy 204988
rowpermute 14758006
rowslice 79466732
rowslicepermute 233824
rowsplice 273
ser_isexactzero 10120354
shallowcopy 27896424
sqrfrac 4148212
sqrti 6611377
sqrtnr 2810313
sqrtr 80380735
sstoQ 1097313
sturm 385
submulii 31985153
submuliu 7700
submuliu_inplace 60148475
truecoef 0
trunc_safe 0
ulogint 1980490
upr_norm 346135
uutoQ 1602144
vec_append 3469023
vec_ei 1714381
vec_lengthen 18960
vec_prepend 313920
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039460
veclast 9372753
vecmodii 0
vecmoduu 49784
vecpermute 21097304
vecreverse 697305
vecreverse_inplace 2605
vecslice 657386094
vecslicepermute 2855313
vecsmall_append 4114754
vecsmall_coincidence 0
vecsmall_concat 1464680
vecsmall_copy 5369095
vecsmall_ei 584800
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043253
vecsmall_max 1164050
vecsmall_min 2352
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75753
vecsmall_to_col 7922263
vecsmall_to_vec 577021
vecsmall_to_vec_inplace 3304
vecsmallpermute 78757644
vecsmalltrunc_append 100844257
vecsmalltrunc_init 241779195
vecsplice 385006
vectrunc_append 15857037
vectrunc_append_batch 9667
vectrunc_init 11766440
zc_to_ZC 7907717
zero_F2m 0
zero_F2m_copy 845078
zero_F2v 3647834
zero_F2x 1181
zero_Flm 2830620
zero_Flm_copy 238310
zero_Flv 59738159
zero_Flx 1427072
zero_zm 0
zero_zv 37305149
zero_zx 0
zerocol 125145451
zeromat 108967
zeromatcopy 14377925
zeropadic 857619
zeropadic_shallow 17150
zeropol 12864834
zeroser 138992
zerovec 29344860
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 2183729
zv_to_ZV 568222
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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