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: 2026-03-15 09:23:45 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 8156897
F2m_copy 200431
F2m_flip 1554557
F2m_set 798
F2v_clear 12354024
F2v_coeff 661439935
F2v_copy 4487
F2v_ei 42
F2v_flip 1554557
F2v_set 101430833
F2v_to_F2x 37870
F2xX_shift 0
F2x_clear 12354025
F2x_coeff 667995600
F2x_copy 59752019
F2x_div 1571594
F2x_equal 4668283
F2x_equal1 2873742
F2x_flip 1554557
F2x_renormalize 112570570
F2x_set 123321247
F2xqX_div 33173
F3m_coeff 3255610
F3m_copy 0
F3m_set 0
Flm_copy 6434504
Flm_row 8743567
Flv_copy 2554976
Flx_constant 334143
Flx_copy 173134291
Flx_div 1999843
Flx_div_pre 21692373
Flx_equal1 8195669
Flx_lead 978175
Flx_mulu 1105455
FlxqX_div 0
FlxqX_div_pre 165412
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4693262
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582028
FpX_renormalize 145677393
Fp_add 181091405
Fp_addmul 11251136
Fp_center 77375781
Fp_center_i 18042210
Fp_div 15034853
Fp_divu 15129345
Fp_double 20874668
Fp_halve 247271
Fp_inv 23435913
Fp_invsafe 1097239
Fp_mul 200847847
Fp_muls 17780
Fp_mulu 70108567
Fp_neg 31476118
Fp_red 82929060
Fp_sqr 63896169
Fp_sub 202957733
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 427289
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 367931
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 3106600
Fq_to_FpXQ 73652
GENbinbase 915827148
QV_isscalar 54420889
Q_abs 8059608
Q_abs_shallow 120227
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619946
RgC_gtofp 34033718
RgC_gtomp 574
RgM_dimensions 9954228
RgM_fpnorml2 22655
RgM_gtofp 8257615
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22234629
RgV_gtofp 56
RgV_is_QV 142000
RgV_is_ZV 32095288
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210269
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2667901
RgX_copy 102480366
RgX_div 6996400
RgX_equal_var 26880190
RgX_fpnorml2 61607
RgX_gtofp 7151265
RgX_is_QX 399941
RgX_is_ZX 22311323
RgX_is_monomial 1318311
RgX_is_rational 68159
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
RgX_to_RgV 140
Rg_col_ei 1451087
Rg_to_Fq 756
ZC_hnfrem 10697432
ZM_ZV_mod 610740
ZM_hnfrem 401413
ZM_lll 7117723
ZV_ZV_mod 8147231
ZV_dvd 23485
ZV_isscalar 23675392
ZV_to_zv 3211715
ZXQ_mul 2166252
ZXQ_sqr 960612
ZX_equal1 10488
ZX_is_monic 7319885
ZX_renormalize 155010446
Z_ispower 98
Z_issquare 509453
abgrp_get_cyc 12231250
abgrp_get_gen 1765026
abgrp_get_no 406734
absfrac 46516021
absfrac_shallow 28237
addmuliu 541572
addmuliu_inplace 59565324
affc_fixlg 249623
affgr 899594
bid_get_MOD 2157242
bid_get_U 3680217
bid_get_arch 41188
bid_get_archp 2397133
bid_get_cyc 5739788
bid_get_fact 2498956
bid_get_fact2 2201566
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804693
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157974
bin_copy 471298924
bit_accuracy 3128472989
bit_accuracy_mul 3175715
bit_prec 143295105
bnf_get_clgp 5375461
bnf_get_cyc 3686611
bnf_get_fu 25859
bnf_get_fu_nocheck 289093
bnf_get_gen 1680314
bnf_get_logfu 2874768
bnf_get_nf 9866341
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367777
bnf_get_tuN 283000
bnf_get_tuU 303585
bnr_get_bid 2046087
bnr_get_bnf 3710943
bnr_get_clgp 2830229
bnr_get_cyc 2522551
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399073
bnr_get_no 277488
both_odd 124133246
cbrtr 0
cbrtr_abs 0
cgetalloc 10115
cgetc 975457
cgiv 105477857
checkell_i 5593229
closure_arity 356181284
closure_codestr 305744970
closure_get_code 28
closure_get_data 305705028
closure_get_dbg 13653
closure_get_frame 14719953
closure_get_oper 305731122
closure_get_text 37136
closure_is_variadic 45910519
col_ei 5925376
coltrunc_init 740257
const_col 9730094
const_vec 34652631
const_vecsmall 18748015
constant_coeff 1441238
cxcompotor 18211377
cxnorm 91202811
cxtofp 9079758
cxtoreal 337205
cyc_get_expo 2757538
cyclic_perm 99911
dbllog2r 92842899
degpol 5500817688
div_content 58511
divsBIL 8108085808
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 7106195
ell_get_a3 8814063
ell_get_a4 8536736
ell_get_a6 10370974
ell_get_b2 7371030
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017980
ell_get_c6 13474309
ell_get_disc 16815079
ell_get_j 2126269
ell_get_type 12496435
ell_is_inf 49434915
ellff_get_a4a6 800040
ellff_get_field 2036909
ellinf 1208466
ellnf_get_bnf 119
ellnf_get_nf 2027240
equali1 1166260941
equalim1 139505604
err_get_compo 294
err_get_num 62582
gaddgs 123254011
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80413
gal_get_invvdm 27873
gal_get_mod 23870
gal_get_orders 6706
gal_get_p 6118
gal_get_pol 36427
gal_get_roots 32843
gc_GEN 245515610
gc_INT 4133043584
gc_INT_affii 11572547
gc_all 102398143
gc_leaf 1132790583
gc_slice 2205905
gc_upto 1944705657
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 761921
gdivsg 531589
gen_I 1268287
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928097
get_F2x_mod 2489625
get_F2x_var 2534305
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82920677
get_Flx_mod 25498020
get_Flx_var 68374388
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 6968816
get_FpX_mod 3387816
get_FpX_var 6954714
gisdouble 2995994
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 877872
gminsg 0
gmulgs 23845752
gmulgu 283104681
gsubgs 1730179
gtodouble 60938561
gtofp 254466017
gtomp 22428
gtos 85855711
gtou 100682
guncloneNULL 49826878
guncloneNULL_deep 1508406
gval 6230
hash_str 2741929
hash_str_len 31636873
icopy_avma 8045396883
idealchineseinit 5427
idealred 138815
identity_ZV 8120
identity_perm 3242815
identity_zv 3267166
inf_get_sign 1453208
inv_content 0
is_bigint 571795445
is_const_t 4981559236
is_extscalar_t 6876
is_intreal_t 9585364
is_matvec_t 741069792
is_noncalc_t 88450511
is_pm1 2215905053
is_qfb_t 0
is_rational_t 5015370
is_real_t 61897669
is_recursive_t 9070238054
is_scalar_t 403349576
is_universal_constant 326494478
is_vec_t 43914974
isint1 17586777
isintm1 5711223
isintzero 2839357919
ismpzero 9585231
isonstack 8300449334
killblock 1958530
leading_coeff 171564203
leafcopy_avma 590528096
lg_increase 444764134
lgcols 352686291
lgpol 2608579872
lincombii 38266131
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 16825252
mkcol 10652796
mkcol2 156987991
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33585
mkcols 40411
mkcomplex 91615954
mkerr 0
mkfrac 41640411
mkfraccopy 4999482
mkfracss 1209563
mkintmod 8061449
mkintmodu 1834
mkmat 4780062
mkmat2 33665716
mkmat22 50259990
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122304
mkmoo 108899
mkoo 1332065
mkpadic 2009
mkpolmod 3075582
mkqfb 27928425
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69639316
mkvec2 212866843
mkvec2copy 114533
mkvec2s 220378
mkvec3 121884360
mkvec3s 524441
mkvec4 10146674
mkvec4s 21
mkvec5 15186568
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131357607
mkvecsmall2 235089260
mkvecsmall3 103261770
mkvecsmall4 18690034
mkvecsmall5 1717613
modpr_get_T 13867098
modpr_get_p 1887626
modpr_get_pr 31236557
mul_content 2657525
mul_denom 10709700
mulsubii 3892231
nbits2extraprec 1458552097
nbits2ndec 228
nbits2nlong 12712967
nbits2prec 186166548
nbrows 158270894
nchar2nlong 127793051
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304836
nf_get_M 21745874
nf_get_Tr 23280
nf_get_degree 71377970
nf_get_diff 4445
nf_get_disc 463513
nf_get_index 3711996
nf_get_invzk 9774922
nf_get_pol 98123031
nf_get_r1 23466369
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628881
nf_get_roundG 1748511
nf_get_sign 519602
nf_get_varn 1503760
nf_get_zk 4382
nf_get_zkden 5462094
nf_get_zkprimpart 5416319
normalize_frac 17205701
odd 2120306255
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 485662524
pari_malloc 721719236
pari_realloc 1873
pari_realloc_ip 2351596
pari_stack_alloc 1005846129
pari_stack_base 1011725978
pari_stack_delete 5893014
pari_stack_init 6358828
pari_stack_new 910561573
pari_stack_pushp 5800
perm_conj 418299
perm_inv 3747250
perm_mul 80955461
perm_sqr 728
pol0_F2x 13228894
pol0_Flx 103151528
pol1_F2x 3948934
pol1_Flx 54899156
pol_0 25907670
pol_1 3750940
pol_x 3857884
pol_xn 2249906
pol_xnall 294
polx_F2x 1078994
polx_Flx 37496620
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130129
pr_get_e 16167439
pr_get_f 26444623
pr_get_gen 12072681
pr_get_p 92761749
pr_get_tau 49774075
pr_is_inert 17224594
pr_norm 1090540
prec2lg 4472578403
prec2nbits 103975110
prec2nbits_mul 581080
prec2ndec 9778
precdbl 475638
qfb_disc 18502488
qfb_disc3 4995139
qfb_is_qfi 64491852
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8017175814
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 14758011
rowslice 79466163
rowslicepermute 233841
rowsplice 273
ser_isexactzero 10120354
shallowcopy 27896664
sqrfrac 4148168
sqrti 6611294
sqrtnr 2810321
sqrtr 80382643
sstoQ 1097313
sturm 385
submulii 31985153
submuliu 7700
submuliu_inplace 60076033
truecoef 0
trunc_safe 0
ulogint 1982194
upr_norm 346136
uutoQ 1602144
vec_append 3468996
vec_ei 1714389
vec_lengthen 18960
vec_prepend 313917
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039428
veclast 9372779
vecmodii 0
vecmoduu 49784
vecpermute 21097627
vecreverse 697305
vecreverse_inplace 2605
vecslice 657558412
vecslicepermute 2855927
vecsmall_append 4114712
vecsmall_coincidence 0
vecsmall_concat 1464640
vecsmall_copy 5369038
vecsmall_ei 584774
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043162
vecsmall_max 1164098
vecsmall_min 2352
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75755
vecsmall_to_col 7922420
vecsmall_to_vec 577021
vecsmall_to_vec_inplace 3304
vecsmallpermute 78759237
vecsmalltrunc_append 100784067
vecsmalltrunc_init 243781934
vecsplice 385002
vectrunc_append 15858432
vectrunc_append_batch 9667
vectrunc_init 11767764
zc_to_ZC 7907874
zero_F2m 0
zero_F2m_copy 845075
zero_F2v 3647854
zero_F2x 1181
zero_Flm 2830936
zero_Flm_copy 238315
zero_Flv 59736637
zero_Flx 1427082
zero_zm 0
zero_zv 37303795
zero_zx 0
zerocol 125143199
zeromat 109002
zeromatcopy 14377419
zeropadic 857345
zeropadic_shallow 17150
zeropol 12864876
zeroser 138992
zerovec 29344831
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 2183713
zv_to_ZV 568222
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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