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 30773-2078653b96) Lines: 1422 1535 92.6 %
Date: 2026-03-30 09:27:24 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 8359004
F2m_copy 200669
F2m_flip 1554246
F2m_set 798
F2v_clear 12361988
F2v_coeff 664438775
F2v_copy 4487
F2v_ei 42
F2v_flip 1554246
F2v_set 104115085
F2v_to_F2x 38024
F2xX_shift 0
F2x_clear 12361974
F2x_coeff 670994453
F2x_copy 64539730
F2x_div 1570062
F2x_equal 4184951
F2x_equal1 2873642
F2x_flip 1554246
F2x_renormalize 127852325
F2x_set 129982253
F2xqX_div 33173
F3m_coeff 3255711
F3m_copy 0
F3m_set 0
Flm_copy 6434531
Flm_row 8743692
Flv_copy 2059067
Flx_constant 1091661
Flx_copy 175794307
Flx_div 1999787
Flx_div_pre 21705981
Flx_equal1 8196123
Flx_lead 1068745
Flx_mulu 1105496
FlxqX_div 0
FlxqX_div_pre 165414
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4692459
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5581995
FpX_renormalize 147014303
Fp_add 183251851
Fp_addmul 11230612
Fp_center 77329663
Fp_center_i 18053844
Fp_div 15034121
Fp_divu 15128603
Fp_double 20766056
Fp_halve 247271
Fp_inv 23436011
Fp_invsafe 1097238
Fp_mul 203093502
Fp_muls 17780
Fp_mulu 65374084
Fp_neg 32667905
Fp_red 82925500
Fp_sqr 63479621
Fp_sub 200921426
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 427294
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38568
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 445023
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 3106426
Fq_to_FpXQ 73652
GENbinbase 919020801
QV_isscalar 54420103
Q_abs 8061004
Q_abs_shallow 120227
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619932
RgC_gtofp 34037797
RgC_gtomp 574
RgM_dimensions 9954710
RgM_fpnorml2 22655
RgM_gtofp 8258358
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22235735
RgV_gtofp 56
RgV_is_QV 142002
RgV_is_ZV 32095988
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210268
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102487030
RgX_div 6997261
RgX_equal_var 26880490
RgX_fpnorml2 61607
RgX_gtofp 7163992
RgX_is_QX 399939
RgX_is_ZX 22315479
RgX_is_monomial 1320034
RgX_is_rational 68156
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
RgX_to_RgV 140
Rg_col_ei 1451126
Rg_to_Fq 756
ZC_hnfrem 10697356
ZM_ZV_mod 610695
ZM_hnfrem 401369
ZM_lll 7118125
ZV_ZV_mod 8147149
ZV_dvd 23485
ZV_isscalar 23675385
ZV_to_zv 3211715
ZXQ_mul 2166249
ZXQ_sqr 960623
ZX_equal1 10488
ZX_is_monic 7319868
ZX_renormalize 157442318
Z_ispower 98
Z_issquare 509452
abgrp_get_cyc 12231202
abgrp_get_gen 1765023
abgrp_get_no 406734
absfrac 46991275
absfrac_shallow 28237
addmuliu 541581
addmuliu_inplace 59563622
affc_fixlg 249621
affgr 899594
bid_get_MOD 2157242
bid_get_U 3680218
bid_get_arch 41187
bid_get_archp 2397098
bid_get_cyc 5739806
bid_get_fact 2498922
bid_get_fact2 2201567
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804661
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157965
bin_copy 472891586
bit_accuracy 3144949000
bit_accuracy_mul 3175715
bit_prec 143407466
bnf_get_clgp 5375460
bnf_get_cyc 3686603
bnf_get_fu 25859
bnf_get_fu_nocheck 289089
bnf_get_gen 1680312
bnf_get_logfu 2874766
bnf_get_nf 9866308
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367774
bnf_get_tuN 282997
bnf_get_tuU 303579
bnr_get_bid 2046090
bnr_get_bnf 3710949
bnr_get_clgp 2830227
bnr_get_cyc 2522553
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399069
bnr_get_no 277489
both_odd 124085874
cbrtr 0
cbrtr_abs 0
cgetalloc 10136
cgetc 975458
cgiv 105476970
checkell_i 8103991
closure_arity 356343076
closure_codestr 305920214
closure_get_code 28
closure_get_data 305871124
closure_get_dbg 13660
closure_get_frame 14735055
closure_get_oper 305897555
closure_get_text 37150
closure_is_variadic 45930969
col_ei 5925219
coltrunc_init 740257
const_col 9730119
const_vec 34674793
const_vecsmall 18861122
constant_coeff 1441260
cxcompotor 18239045
cxnorm 94097229
cxtofp 9093613
cxtoreal 337205
cyc_get_expo 2757537
cyclic_perm 99932
dbllog2r 94329183
degpol 5514687528
div_content 58510
divsBIL 8240132282
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 17049194
ell_get_a2 11108723
ell_get_a3 12863761
ell_get_a4 10325141
ell_get_a6 10371101
ell_get_b2 7371405
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11019145
ell_get_c6 13474850
ell_get_disc 16816553
ell_get_j 2126269
ell_get_type 14946097
ell_is_inf 50209597
ellff_get_a4a6 551462
ellff_get_field 1790607
ellinf 913923
ellnf_get_bnf 119
ellnf_get_nf 2027242
equali1 1169258047
equalim1 139567870
err_get_compo 294
err_get_num 62595
gaddgs 123270522
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 246776491
gc_INT 4134423420
gc_INT_affii 11565961
gc_all 102553081
gc_leaf 1160719571
gc_slice 2211077
gc_upto 1971510550
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 559710
gen_I 1268875
gener_Fq_local 29945
gequalgs 29176
get_F2x_degree 1928539
get_F2x_mod 3307620
get_F2x_var 2168653
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82146111
get_Flx_mod 25499480
get_Flx_var 68245218
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 6969302
get_FpX_mod 3387861
get_FpX_var 6952118
gisdouble 2996580
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 898138
gminsg 0
gmulgs 23877843
gmulgu 283360013
gsubgs 1731938
gtodouble 66246835
gtofp 257212815
gtomp 22428
gtos 85865510
gtou 100723
guncloneNULL 49823901
guncloneNULL_deep 1503363
gval 6230
hash_str 2757674
hash_str_len 31655983
icopy_avma 8050120782
idealchineseinit 5427
idealred 138810
identity_ZV 8120
identity_perm 3243461
identity_zv 3267824
inf_get_sign 1453259
inv_content 0
is_bigint 574363496
is_const_t 5002763738
is_extscalar_t 6904
is_intreal_t 9702709
is_matvec_t 742712937
is_noncalc_t 88516220
is_pm1 2216151640
is_qfb_t 0
is_rational_t 5017756
is_real_t 61900630
is_recursive_t 9105320779
is_scalar_t 403471326
is_universal_constant 326603580
is_vec_t 43949032
isint1 17987198
isintm1 6086539
isintzero 2848219005
ismpzero 9702591
isonstack 8355444054
killblock 1954716
leading_coeff 169337569
leafcopy_avma 593869682
lg_increase 445700780
lgcols 352697258
lgpol 2623321980
lincombii 38273260
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 755023
matpascal 4683
matslice 16825951
mkcol 10653406
mkcol2 156970019
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33578
mkcols 40411
mkcomplex 92011031
mkerr 0
mkfrac 41927411
mkfraccopy 4999694
mkfracss 1209563
mkintmod 8066797
mkintmodu 1834
mkmat 4779953
mkmat2 33665796
mkmat22 50259188
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122318
mkmoo 108905
mkoo 1332112
mkpadic 2009
mkpolmod 3075552
mkqfb 27928949
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69363542
mkvec2 215371117
mkvec2copy 114531
mkvec2s 220730
mkvec3 119660886
mkvec3s 524441
mkvec4 10150179
mkvec4s 21
mkvec5 15187674
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140265310
mkvecsmall2 256984729
mkvecsmall3 103255321
mkvecsmall4 18653958
mkvecsmall5 1718728
modpr_get_T 13867064
modpr_get_p 1887627
modpr_get_pr 31236543
mul_content 2657459
mul_denom 10709705
mulsubii 3893229
nbits2extraprec 1497861928
nbits2ndec 228
nbits2nlong 12750821
nbits2prec 189011153
nbrows 158278755
nchar2nlong 127926843
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304858
nf_get_M 21745958
nf_get_Tr 23278
nf_get_degree 71376126
nf_get_diff 4445
nf_get_disc 463511
nf_get_index 3712015
nf_get_invzk 9774836
nf_get_pol 98119314
nf_get_r1 23466498
nf_get_r2 4154
nf_get_ramified_primes 64644
nf_get_roots 1628905
nf_get_roundG 1748534
nf_get_sign 519601
nf_get_varn 1503765
nf_get_zk 4382
nf_get_zkden 5462254
nf_get_zkprimpart 5416427
normalize_frac 17311349
odd 2124777882
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 487248181
pari_malloc 723359721
pari_realloc 1880
pari_realloc_ip 2359927
pari_stack_alloc 1006227314
pari_stack_base 1012029267
pari_stack_delete 5867923
pari_stack_init 6378856
pari_stack_new 910901608
pari_stack_pushp 5821
perm_conj 418299
perm_inv 3747519
perm_mul 80958741
perm_sqr 728
pol0_F2x 17346783
pol0_Flx 111623442
pol1_F2x 4768326
pol1_Flx 55727521
pol_0 27123752
pol_1 3752505
pol_x 3860465
pol_xn 2252831
pol_xnall 294
polx_F2x 1078695
polx_Flx 37494366
polx_zx 0
polxn_Flx 371
powIs 596435
powii 43130143
pr_get_e 16167471
pr_get_f 26444708
pr_get_gen 12072648
pr_get_p 92761332
pr_get_tau 49773827
pr_is_inert 17224444
pr_norm 1090606
prec2lg 4561243406
prec2nbits 106946389
prec2nbits_mul 581097
prec2ndec 9778
precdbl 476370
qfb_disc 18502525
qfb_disc3 4995425
qfb_is_qfi 64515001
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8148773313
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 14759233
rowslice 79470376
rowslicepermute 234473
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27896589
sqrfrac 4151032
sqrti 6612707
sqrtnr 2810797
sqrtr 86931741
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60073937
truecoef 0
trunc_safe 0
ulogint 2093753
upr_norm 346135
uutoQ 1602144
vec_append 3468950
vec_ei 1714763
vec_lengthen 18960
vec_prepend 313932
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039421
veclast 9374228
vecmodii 0
vecmoduu 49784
vecpermute 21108945
vecreverse 697305
vecreverse_inplace 2605
vecslice 657486448
vecslicepermute 2858574
vecsmall_append 4114698
vecsmall_coincidence 0
vecsmall_concat 1464645
vecsmall_copy 7341216
vecsmall_ei 585138
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1177485
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75755
vecsmall_to_col 7925015
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78762438
vecsmalltrunc_append 100884759
vecsmalltrunc_init 244433308
vecsplice 385005
vectrunc_append 15856125
vectrunc_append_batch 9667
vectrunc_init 11766329
zc_to_ZC 7910470
zero_F2m 0
zero_F2m_copy 845291
zero_F2v 3656699
zero_F2x 1181
zero_Flm 2831132
zero_Flm_copy 238321
zero_Flv 61989650
zero_Flx 3255491
zero_zm 0
zero_zv 39510372
zero_zx 0
zerocol 125162106
zeromat 108964
zeromatcopy 14378760
zeropadic 857551
zeropadic_shallow 17150
zeropol 12867491
zeroser 138992
zerovec 29348435
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 1687798
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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