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
F2xX_shift 0
F3m_copy 0
F3m_set 0
FlxqX_div 0
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQ_add 0
FpXQ_sub 0
FqXQ_add 0
FqXQ_div 0
FqXQ_inv 0
FqXQ_invsafe 0
FqXQ_pow 0
FqXQ_sqr 0
FqXQ_sub 0
FqX_divrem 0
FqX_halfgcd 0
FqX_integ 0
FqXn_exp 0
FqXn_sqr 0
R_abs 0
RgX_isscalar 0
bid_get_gen_nocheck 0
bid_get_no 0
cbrtr 0
cbrtr_abs 0
gchar_get_U 0
gchar_get_hnf 0
gmaxsg 0
gminsg 0
inv_content 0
is_qfb_t 0
mkcol4s 0
mkerr 0
mkmat5 0
mkvec5s 0
mkvec6 0
pari_err_FILE 0
pari_err_MAXPRIME 0
pari_err_PACKAGE 0
polx_zx 0
random_Fq 0
truecoef 0
trunc_safe 0
vec_setconst 0
vecmodii 0
vecsmall_coincidence 0
zero_F2m 0
zero_zm 0
zero_zx 0
zm_copy 0
zm_row 0
zm_to_zxV 0
zx_shift 0
zx_to_zv 0
FqX_ddf 7
FqX_factor_squarefree 7
mkrfraccopy 14
pari_err_BUG 14
znstar_get_no 14
RgM_gtomp 21
mkvec4s 21
pari_err_CONSTPOL 21
vecsmall_indexmax 21
vecsmall_indexmin 21
closure_get_code 28
pari_err_FILEDESC 36
F2v_ei 42
RgV_gtofp 56
pari_err_IRREDPOL 63
pari_err_ROOTS0 63
bnr_get_gen_nocheck 70
mkmat4 84
vecsmall_isin 84
vecsmall_pack 84
gal_get_e 91
pari_err_COPRIME 91
mkcol5 94
Z_ispower 98
pari_err_FLAG 98
pari_err_PRIME 98
rnf_get_index 105
ellnf_get_bnf 119
RgX_to_RgV 140
pari_err_OVERFLOW 156
mkvecs 168
FqX_to_mod 175
pari_err_COMPONENT 214
nbits2ndec 228
pari_err_PREC 238
pari_err_PRIORITY 245
zm_transpose 266
rowsplice 273
err_get_compo 294
pol_xnall 294
mkvec6s 301
ellQp_get_prec 308
mkcol3s 315
gchar_get_nfree 322
gchar_get_ntors 322
get_F2xqX_mod 343
rnf_get_disc 357
pari_err_VAR 371
polxn_Flx 371
sturm 385
pari_err_OP 406
pari_err_IMPL 539
vecsmall_lengthen 547
RgC_gtomp 574
rnf_get_varn 574
gchar_get_r2 623
gchar_set_HUUi 630
gchar_set_nalg 630
gchar_set_nfree 630
gchar_set_ntors 630
bnf_get_reg 648
pari_err_DIM 718
perm_sqr 728
Rg_to_Fq 756
F2m_set 798
gchar_set_m0 945
row_i 987
RgM_minor 1036
quad_disc 1085
ellQp_get_p 1134
zero_F2x 1181
gchar_copy_precs 1225
gchar_set_prec 1225
rnf_get_invzk 1225
rnf_get_k 1225
locs_get_Lgenfil 1288
locs_get_famod 1288
FqX_powu 1295
pari_err_MODULUS 1316
rnf_get_idealdisc 1386
rnf_get_alpha 1428
ellQp_get_zero 1463
powIs 1561
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_get_sfu 1743
gchar_set_evalprec 1813
mkintmodu 1834
gchar_get_nm 1869
pari_realloc 1873
RgXQX_div 1904
mkpadic 2009
gchar_get_nalg 2044
gchar_set_nf 2110
gchar_set_u0 2121
vecsmall_min 2352
vecreverse_inplace 2605
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2869
gchar_set_nfprec 2968
vecsmall_reverse 3052
vecsmall_to_vec_inplace 3304
gchar_get_m0 3318
pari_err_TYPE2 3493
get_FpXQX_degree 3589
matpascal 3983
gchar_get_evalprec 4011
gchar_get_modP 4095
FqX_normalize 4144
nf_get_r2 4154
gchar_get_u0 4252
nf_get_zk 4382
nf_get_diff 4445
F2v_copy 4487
FpXQX_div 4526
rnf_get_zk 4830
rnf_get_nfvarn 4886
idealchineseinit 5427
pari_stack_pushp 5800
FqX_get_red 6090
gal_get_p 6118
gval 6230
FqXn_expint 6590
gal_get_orders 6706
is_extscalar_t 6876
pari_err_SQRTN 7084
FqXn_inv 7126
rnf_get_nfzk 7245
FqX_roots 7273
submuliu 7700
bnr_get_gen 7847
get_FlxqX_mod 8033
identity_ZV 8120
gchar_get_mod 8225
locs_get_mod 8225
ndec2nbits 8270
FqX_gcd 8288
bnf_get_no 8372
vectrunc_append_batch 9667
prec2ndec 9778
cgetalloc 10115
ZX_equal1 10488
gchar_get_Ui 10983
vec_shorten 11557
R_abs_shallow 13097
gchar_get_nfprec 13468
closure_get_dbg 13653
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15491
znstar_get_gen 16150
gchar_get_cyc 16177
mkmat3 17001
zeropadic_shallow 17150
gchar_get_r1 17444
Fp_muls 17780
gchar_get_prec 18795
vec_lengthen 18960
FqX_halve 19411
pari_err_INV 20025
FpXY_Fq_evaly 20587
rnf_get_nfdegree 21455
FqX_mulu 21942
gtomp 22428
RgM_fpnorml2 22655
FqXQ_mul 22766
nf_get_Tr 23280
ZV_dvd 23485
gal_get_mod 23870
FqX_neg 24956
FqX_red 25354
bnf_get_fu 25859
nfV_to_scalar_or_alg 26300
gal_get_den 27867
gal_get_invvdm 27873
absfrac_shallow 28237
gequalgs 29176
zerovec_block 29654
gener_Fq_local 29946
gchar_get_basis 32816
gal_get_roots 32843
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33585
Qtoss 35364
gal_get_pol 36427
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37136
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 37870
FqX_div 38563
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47609
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58511
RgX_fpnorml2 61607
err_get_num 62582
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68159
FqX_sub 68607
mkquad 69118
FqX_div_by_X_x 69699
quadnorm 69881
FqX_sqr 71855
bid_get_ideal 72842
Fq_to_FpXQ 73652
vecsmall_shorten 75755
bnr_get_mod 77119
gal_get_group 80413
mkcol3 88314
cyclic_perm 99911
gtou 100682
mkcol4 103467
zv_to_zx 104146
mkmoo 108899
zeromat 109002
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114533
Q_abs_shallow 120227
mkmatcopy 122304
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138815
zeroser 138992
FqX_factor 140960
RgV_is_QV 142000
get_FpXQX_mod 146583
FlxqX_div_pre 165412
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200431
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220378
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 233841
zero_Flm_copy 238315
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249623
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264435
bnr_get_no 277488
gchar_get_zm 281911
bnf_get_tuN 283000
bnf_get_fu_nocheck 289093
bnf_get_tuU 303585
nf_get_G 304836
vec_prepend 313917
get_FlxqX_degree 317580
rnf_get_polabs 327628
Flx_constant 334143
cxtoreal 337205
upr_norm 346136
RgX_renormalize 349807
FqX_mul 367931
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385002
RgX_is_QX 399941
ZM_hnfrem 401413
abgrp_get_no 406734
perm_conj 418299
FqX_Fq_mul 427289
FqX_extgcd 445016
nf_get_disc 463513
precdbl 475638
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
Z_issquare 509453
nf_get_sign 519602
mkvec3s 524441
gdivsg 531589
addmuliu 541572
zv_to_ZV 568222
FqX_Fp_mul 572206
vecsmall_to_vec 577021
prec2nbits_mul 581080
vecsmall_ei 584774
ZM_ZV_mod 610740
RgC_fpnorml2 619946
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 754939
gcmpgs 761921
row 763896
rnf_get_nf 786086
ellff_get_a4a6 800040
zero_F2m_copy 845075
FpXX_renormalize 849322
zeropadic 857345
gmin_shallow 877872
affgr 899594
ZXQ_sqr 960612
cgetc 975457
Flx_lead 978175
polx_F2x 1078994
pr_norm 1090540
Fp_invsafe 1097239
sstoQ 1097313
Flx_mulu 1105455
vecsmall_max 1164098
ellinf 1208466
mkfracss 1209563
RgV_isscalar 1210269
gen_I 1268287
RgX_is_monomial 1318311
mkoo 1332065
bnf_get_sunits 1367777
rnf_get_absdegree 1392746
bnr_get_nf 1399073
zero_Flx 1427082
constant_coeff 1441238
Rg_col_ei 1451087
inf_get_sign 1453208
vecsmall_concat 1464640
nf_get_varn 1503760
guncloneNULL_deep 1508406
bid_get_mod 1521922
F2m_flip 1554557
F2v_flip 1554557
F2x_flip 1554557
F2x_div 1571594
uutoQ 1602144
nf_get_roots 1628881
bnf_get_gen 1680314
vec_ei 1714389
mkvecsmall5 1717613
gsubgs 1730179
nf_get_roundG 1748511
abgrp_get_gen 1765026
modpr_get_p 1887626
get_F2x_degree 1928097
killblock 1958530
ulogint 1982194
Flx_div 1999843
ellnf_get_nf 2027240
ellff_get_field 2036909
bnr_get_bid 2046087
ell_get_j 2126269
bid_get_MOD 2157242
bid_get_sprk 2157974
ZXQ_mul 2166252
zv_copy 2183713
bid_get_fact2 2201566
gc_slice 2205905
pol_xn 2249906
pari_realloc_ip 2351596
bid_get_archp 2397133
get_F2x_mod 2489625
bid_get_fact 2498956
rnf_get_degree 2506335
bnr_get_cyc 2522551
get_F2x_var 2534305
ell_get_b4 2550216
Flv_copy 2554976
mul_content 2657525
RgX_coeff 2667901
hash_str 2741929
cyc_get_expo 2757538
sqrtnr 2810321
bnr_get_clgp 2830229
zero_Flm 2830936
rnf_get_pol 2845192
vecslicepermute 2855927
znstar_get_pe 2869063
F2x_equal1 2873742
bnf_get_logfu 2874768
gisdouble 2995994
mkpolmod 3075582
Fq_red 3106600
bit_accuracy_mul 3175715
ZV_to_zv 3211715
identity_perm 3242815
F3m_coeff 3255610
identity_zv 3267166
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3387816
vec_append 3468996
zero_F2v 3647854
bid_get_U 3680217
bnf_get_cyc 3686611
bnr_get_bnf 3710943
nf_get_index 3711996
perm_inv 3747250
pol_1 3750940
pol_x 3857884
ell_get_b6 3863115
mulsubii 3892231
pol1_F2x 3948934
vec_to_vecsmall 4039428
vecsmall_append 4114712
sqrfrac 4148168
mkcol2s 4416244
F2x_equal 4668283
FpXQX_renormalize 4693262
mkmat 4780062
qfb_disc3 4995139
mkfraccopy 4999482
is_rational_t 5015370
vecsmall_copy 5369038
bnf_get_clgp 5375461
nf_get_zkprimpart 5416319
nf_get_zkden 5462094
FpX_div 5582028
checkell_i 5593229
isintm1 5711223
bid_get_cyc 5739788
bid_get_grp 5804693
pari_stack_delete 5893014
col_ei 5925376
pari_stack_init 6358828
Flm_copy 6434504
sqrti 6611294
get_FpX_var 6954714
get_FpX_degree 6968816
RgX_div 6996400
vecsmall_lexcmp 7043162
ell_get_a2 7106195
ZM_lll 7117723
RgX_gtofp 7151265
ZX_is_monic 7319885
znstar_get_faN 7334819
ell_get_b2 7371030
zc_to_ZC 7907874
vecsmall_to_col 7922420
znstar_get_conreycyc 7982108
Q_abs 8059608
mkintmod 8061449
ZV_ZV_mod 8147231
F2m_coeff 8156897
Flx_equal1 8195669
RgM_gtofp 8257615
ell_get_a4 8536736
Flm_row 8743567
ell_get_a3 8814063
ell_get_a1 8997096
cxtofp 9079758
veclast 9372779
ismpzero 9585231
is_intreal_t 9585364
const_col 9730094
nf_get_invzk 9774922
bnf_get_nf 9866341
RgM_dimensions 9954228
ser_isexactzero 10120354
mkvec4 10146674
ell_get_a6 10370974
mkcol 10652796
ZC_hnfrem 10697432
mul_denom 10709700
ell_get_c4 11017980
Fp_addmul 11251136
gc_INT_affii 11572547
vectrunc_init 11767764
pr_get_gen 12072681
abgrp_get_cyc 12231250
F2v_clear 12354024
F2x_clear 12354025
ell_get_type 12496435
nbits2nlong 12712967
zeropol 12864876
pol0_F2x 13228894
ell_get_c6 13474309
gmax_shallow 13510227
modpr_get_T 13867098
zeromatcopy 14377419
closure_get_frame 14719953
rowpermute 14758011
Fp_div 15034853
Fp_divu 15129345
mkvec5 15186568
vectrunc_append 15858432
pr_get_e 16167439
ell_get_disc 16815079
matslice 16825252
normalize_frac 17205701
pr_is_inert 17224594
isint1 17586777
Fp_center_i 18042210
cxcompotor 18211377
qfb_disc 18502488
mkvecsmall4 18690034
const_vecsmall 18748015
Fp_double 20874668
vecpermute 21097627
Flx_div_pre 21692373
nf_get_M 21745874
RgM_shallowcopy 22234629
RgX_is_ZX 22311323
Fp_inv 23435913
nf_get_r1 23466369
ZV_isscalar 23675392
gmulgs 23845752
get_Flx_mod 25498020
pol_0 25907670
pr_get_f 26444623
RgX_equal_var 26880190
shallowcopy 27896664
mkqfb 27928425
zerovec 29344831
modpr_get_pr 31236557
Fp_neg 31476118
hash_str_len 31636873
submulii 31985153
RgV_is_ZV 32095288
mkmat2 33665716
RgC_gtofp 34033718
const_vec 34652631
zero_zv 37303795
polx_Flx 37496620
lincombii 38266131
znstar_get_N 38658713
mkfrac 41640411
powii 43130129
is_vec_t 43914974
closure_is_variadic 45910519
absfrac 46516021
ell_is_inf 49434915
pr_get_tau 49774075
guncloneNULL 49826878
mkmat22 50259990
QV_isscalar 54420889
pol1_Flx 54899156
addmuliu_inplace 59565324
zero_Flv 59736637
F2x_copy 59752019
submuliu_inplace 60076033
gtodouble 60938561
is_real_t 61897669
Fp_sqr 63896169
qfb_is_qfi 64491852
get_Flx_var 68374388
mkvec 69639316
Fp_mulu 70108567
nf_get_degree 71377970
Fp_center 77375781
vecsmallpermute 78759237
rowslice 79466163
sqrtr 80382643
perm_mul 80955461
get_Flx_degree 82920677
Fp_red 82929060
gtos 85855711
is_noncalc_t 88450511
cxnorm 91202811
mkcomplex 91615954
pr_get_p 92761749
dbllog2r 92842899
nf_get_pol 98123031
vecsmalltrunc_append 100784067
F2v_set 101430833
gc_all 102398143
RgX_copy 102480366
pol0_Flx 103151528
mkvecsmall3 103261770
prec2nbits 103975110
cgiv 105477857
vecsmall_prefixcmp 108088071
F2x_renormalize 112570570
mkvec3 121884360
gaddgs 123254011
F2x_set 123321247
both_odd 124133246
zerocol 125143199
nchar2nlong 127793051
mkvecsmall 131357607
equalim1 139505604
bit_prec 143295105
FpX_renormalize 145677393
ZX_renormalize 155010446
mkcol2 156987991
nbrows 158270894
leading_coeff 171564203
Flx_copy 173134291
Fp_add 181091405
nbits2prec 186166548
Fp_mul 200847847
Fp_sub 202957733
mkvec2 212866843
mkvecsmall2 235089260
vecsmalltrunc_init 243781934
gc_GEN 245515610
gtofp 254466017
gmulgu 283104681
closure_get_data 305705028
closure_get_oper 305731122
closure_codestr 305744970
is_universal_constant 326494478
lgcols 352686291
closure_arity 356181284
is_scalar_t 403349576
lg_increase 444764134
bin_copy 471298924
pari_free 485662524
is_bigint 571795445
leafcopy_avma 590528096
vecslice 657558412
F2v_coeff 661439935
F2x_coeff 667995600
pari_malloc 721719236
is_matvec_t 741069792
pari_stack_new 910561573
GENbinbase 915827148
pari_stack_alloc 1005846129
pari_stack_base 1011725978
gc_leaf 1132790583
equali1 1166260941
nbits2extraprec 1458552097
gc_upto 1944705657
odd 2120306255
is_pm1 2215905053
lgpol 2608579872
isintzero 2839357919
bit_accuracy 3128472989
gc_INT 4133043584
prec2lg 4472578403
is_const_t 4981559236
degpol 5500817688
remsBIL 8017175814
icopy_avma 8045396883
divsBIL 8108085808
isonstack 8300449334
is_recursive_t 9070238054

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