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 30775-9d8a55740a) Lines: 1422 1535 92.6 %
Date: 2026-04-06 09:26:18 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 8355592
F2m_copy 200648
F2m_flip 1553148
F2m_set 798
F2v_clear 12359910
F2v_coeff 664418026
F2v_copy 4487
F2v_ei 42
F2v_flip 1553148
F2v_set 104112113
F2v_to_F2x 37711
F2xX_shift 0
F2x_clear 12359896
F2x_coeff 670962846
F2x_copy 63852342
F2x_div 1557036
F2x_equal 4130169
F2x_equal1 2873612
F2x_flip 1553148
F2x_renormalize 126805571
F2x_set 129707353
F2xqX_div 33173
F3m_coeff 3255657
F3m_copy 0
F3m_set 0
Flm_copy 6434430
Flm_row 8743427
Flv_copy 2059138
Flx_constant 1091351
Flx_copy 175737967
Flx_div 1999751
Flx_div_pre 21703026
Flx_equal1 8195981
Flx_lead 1068770
Flx_mulu 1105488
FlxqX_div 0
FlxqX_div_pre 165409
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4691890
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5581976
FpX_renormalize 147016629
Fp_add 183484911
Fp_addmul 11286222
Fp_center 77269476
Fp_center_i 18019397
Fp_div 15034377
Fp_divu 15128849
Fp_double 20932084
Fp_halve 247271
Fp_inv 23435913
Fp_invsafe 1097233
Fp_mul 203158503
Fp_muls 17780
Fp_mulu 65705894
Fp_neg 32667343
Fp_red 82929098
Fp_sqr 64242963
Fp_sub 202114110
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 572206
FqX_Fq_mul 427293
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 445020
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 3106192
Fq_to_FpXQ 73652
GENbinbase 918980964
QV_isscalar 54419868
Q_abs 8060903
Q_abs_shallow 120232
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619940
RgC_gtofp 34036253
RgC_gtomp 574
RgM_dimensions 9954661
RgM_fpnorml2 22655
RgM_gtofp 8258129
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22235094
RgV_gtofp 56
RgV_is_QV 142001
RgV_is_ZV 32095979
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210265
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102486912
RgX_div 6997261
RgX_equal_var 26880490
RgX_fpnorml2 61607
RgX_gtofp 7163938
RgX_is_QX 399945
RgX_is_ZX 22315431
RgX_is_monomial 1319945
RgX_is_rational 68155
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
RgX_to_RgV 140
Rg_col_ei 1451129
Rg_to_Fq 756
ZC_hnfrem 10697377
ZM_ZV_mod 610692
ZM_hnfrem 401406
ZM_lll 7117952
ZV_ZV_mod 8147104
ZV_dvd 23485
ZV_isscalar 23674849
ZV_to_zv 3211716
ZXQ_mul 2166242
ZXQ_sqr 960608
ZX_equal1 10488
ZX_is_monic 7319870
ZX_renormalize 157451580
Z_ispower 98
Z_issquare 509449
abgrp_get_cyc 12231168
abgrp_get_gen 1765022
abgrp_get_no 406729
absfrac 46990950
absfrac_shallow 28237
addmuliu 541563
addmuliu_inplace 59563031
affc_fixlg 249616
affgr 899594
bid_get_MOD 2157248
bid_get_U 3680227
bid_get_arch 41188
bid_get_archp 2397067
bid_get_cyc 5739748
bid_get_fact 2498906
bid_get_fact2 2201568
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804621
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157971
bin_copy 472867963
bit_accuracy 3140399905
bit_accuracy_mul 3175715
bit_prec 143393826
bnf_get_clgp 5375451
bnf_get_cyc 3686600
bnf_get_fu 25859
bnf_get_fu_nocheck 289097
bnf_get_gen 1680310
bnf_get_logfu 2874746
bnf_get_nf 9866255
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367775
bnf_get_tuN 283001
bnf_get_tuU 303583
bnr_get_bid 2046091
bnr_get_bnf 3710941
bnr_get_clgp 2830214
bnr_get_cyc 2522551
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399081
bnr_get_no 277487
both_odd 123752791
cbrtr 0
cbrtr_abs 0
cgetalloc 10136
cgetc 975459
cgiv 105458524
checkell_i 8104010
closure_arity 356429628
closure_codestr 306001064
closure_get_code 28
closure_get_data 305958598
closure_get_dbg 13660
closure_get_frame 14734916
closure_get_oper 305981756
closure_get_text 37150
closure_is_variadic 45930571
col_ei 5925299
coltrunc_init 740257
const_col 9730062
const_vec 34669806
const_vecsmall 18860839
constant_coeff 1441265
cxcompotor 18236199
cxnorm 94095895
cxtofp 9092277
cxtoreal 337206
cyc_get_expo 2757529
cyclic_perm 99932
dbllog2r 94326987
degpol 5509072909
div_content 58511
divsBIL 8234276841
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 17049189
ell_get_a2 11108721
ell_get_a3 12863756
ell_get_a4 10325139
ell_get_a6 10371099
ell_get_b2 7371402
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11018447
ell_get_c6 13474130
ell_get_disc 16815206
ell_get_j 2126269
ell_get_type 14946054
ell_is_inf 50203559
ellff_get_a4a6 551453
ellff_get_field 1790594
ellinf 913921
ellnf_get_bnf 119
ellnf_get_nf 2027227
equali1 1169265599
equalim1 139567765
err_get_compo 294
err_get_num 62596
gaddgs 123270531
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80412
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 246738127
gc_INT 4134423365
gc_INT_affii 11560281
gc_all 102550710
gc_leaf 1160518989
gc_slice 2210997
gc_upto 1971358518
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 761925
gdivsg 559710
gen_I 1268870
gener_Fq_local 29945
gequalgs 29176
get_F2x_degree 1928433
get_F2x_mod 3307596
get_F2x_var 2168565
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82243811
get_Flx_mod 25494745
get_Flx_var 68232336
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 6969263
get_FpX_mod 3387855
get_FpX_var 6952052
gisdouble 2996276
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 898159
gminsg 0
gmulgs 23875060
gmulgu 283360013
gsubgs 1731925
gtodouble 66244724
gtofp 257199785
gtomp 22428
gtos 85865503
gtou 100708
guncloneNULL 49828150
guncloneNULL_deep 1508077
gval 6230
hash_str 2759564
hash_str_len 31655309
icopy_avma 8049803650
idealchineseinit 5427
idealred 138812
identity_ZV 8120
identity_perm 3243457
identity_zv 3267820
inf_get_sign 1453095
inv_content 0
is_bigint 574335181
is_const_t 5002398959
is_extscalar_t 6904
is_intreal_t 9702756
is_matvec_t 742835105
is_noncalc_t 88516342
is_pm1 2216264031
is_qfb_t 0
is_rational_t 5017678
is_real_t 61900629
is_recursive_t 9103600813
is_scalar_t 403468137
is_universal_constant 326535614
is_vec_t 43958841
isint1 17987090
isintm1 6086457
isintzero 2848763412
ismpzero 9702652
isonstack 8355150321
killblock 1957308
leading_coeff 169331074
leafcopy_avma 593717677
lg_increase 448766967
lgcols 352679014
lgpol 2616052474
lincombii 38279762
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 755020
matpascal 4683
matslice 16825545
mkcol 10653377
mkcol2 156958024
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33589
mkcols 40411
mkcomplex 91992033
mkerr 0
mkfrac 41927218
mkfraccopy 4999537
mkfracss 1209563
mkintmod 8066713
mkintmodu 1834
mkmat 4780013
mkmat2 33665561
mkmat22 50254105
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122322
mkmoo 108897
mkoo 1331958
mkpadic 2009
mkpolmod 3075562
mkqfb 27928780
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69357257
mkvec2 215387812
mkvec2copy 114531
mkvec2s 220726
mkvec3 119982352
mkvec3s 524441
mkvec4 10150160
mkvec4s 21
mkvec5 15187558
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140210629
mkvecsmall2 256931404
mkvecsmall3 103244476
mkvecsmall4 18645355
mkvecsmall5 1718696
modpr_get_T 13867087
modpr_get_p 1887624
modpr_get_pr 31236492
mul_content 2657374
mul_denom 10709738
mulsubii 3893597
nbits2extraprec 1497479079
nbits2ndec 228
nbits2nlong 12749159
nbits2prec 189001399
nbrows 158274577
nchar2nlong 127923553
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304819
nf_get_M 21745361
nf_get_Tr 23280
nf_get_degree 71376272
nf_get_diff 4445
nf_get_disc 463511
nf_get_index 3712016
nf_get_invzk 9774667
nf_get_pol 98119329
nf_get_r1 23465732
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628839
nf_get_roundG 1748494
nf_get_sign 519600
nf_get_varn 1503730
nf_get_zk 4382
nf_get_zkden 5462034
nf_get_zkprimpart 5416196
normalize_frac 17311378
odd 2124217552
pari_calloc 47700
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 487229194
pari_malloc 723314263
pari_realloc 1880
pari_realloc_ip 2358848
pari_stack_alloc 1006310221
pari_stack_base 1012133957
pari_stack_delete 5879237
pari_stack_init 6379020
pari_stack_new 910988009
pari_stack_pushp 5821
perm_conj 418299
perm_inv 3747467
perm_mul 80952364
perm_sqr 728
pol0_F2x 17303613
pol0_Flx 111571383
pol1_F2x 4767918
pol1_Flx 55713907
pol_0 27123753
pol_1 3752504
pol_x 3860357
pol_xn 2252860
pol_xnall 294
polx_F2x 1073606
polx_Flx 37490569
polx_zx 0
polxn_Flx 371
powIs 596435
powii 43130064
pr_get_e 16167445
pr_get_f 26444611
pr_get_gen 12072400
pr_get_p 92761284
pr_get_tau 49773642
pr_is_inert 17224281
pr_norm 1090566
prec2lg 4565552998
prec2nbits 106943032
prec2nbits_mul 581093
prec2ndec 9778
precdbl 476360
qfb_disc 18502489
qfb_disc3 4995333
qfb_is_qfi 64503778
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8143917457
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 763882
row_i 987
rowcopy 204988
rowpermute 14758557
rowslice 79449743
rowslicepermute 233948
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27895926
sqrfrac 4150868
sqrti 6612730
sqrtnr 2810727
sqrtr 86932172
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60066044
truecoef 0
trunc_safe 0
ulogint 2093090
upr_norm 346133
uutoQ 1602144
vec_append 3468965
vec_ei 1714724
vec_lengthen 18960
vec_prepend 313930
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039402
veclast 9374230
vecmodii 0
vecmoduu 49784
vecpermute 21105930
vecreverse 697305
vecreverse_inplace 2605
vecslice 657260035
vecslicepermute 2856966
vecsmall_append 4114668
vecsmall_coincidence 0
vecsmall_concat 1464598
vecsmall_copy 7341126
vecsmall_ei 585082
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1177379
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75751
vecsmall_to_col 7924196
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78756162
vecsmalltrunc_append 100904797
vecsmalltrunc_init 244376448
vecsplice 385000
vectrunc_append 15855663
vectrunc_append_batch 9667
vectrunc_init 11768288
zc_to_ZC 7909651
zero_F2m 0
zero_F2m_copy 845228
zero_F2v 3656354
zero_F2x 1181
zero_Flm 2831213
zero_Flm_copy 238318
zero_Flv 61971921
zero_Flx 3255892
zero_zm 0
zero_zv 39493740
zero_zx 0
zerocol 125154662
zeromat 108971
zeromatcopy 14378162
zeropadic 857672
zeropadic_shallow 17150
zeropol 12867495
zeroser 138992
zerovec 29348218
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 1687900
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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