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 30631-5f55634266) Lines: 1421 1535 92.6 %
Date: 2026-01-24 09:23:06 Functions: 649 707 91.8 %
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
closure_get_code 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
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
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
zero_F2x 1350
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 1813
gchar_get_nm 1869
pari_realloc 1890
RgXQX_div 1904
mkpadic 2009
gchar_get_nalg 2044
gchar_set_nf 2110
gchar_set_u0 2121
vecsmall_min 2345
vecreverse_inplace 2605
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2862
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 5851
gal_get_p 6006
FqX_get_red 6090
gval 6230
FqXn_expint 6590
gal_get_orders 6678
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 8113
gchar_get_mod 8225
locs_get_mod 8225
ndec2nbits 8270
FqX_gcd 8288
bnf_get_no 8372
vectrunc_append_batch 9667
prec2ndec 9778
cgetalloc 10166
gchar_get_Ui 10983
vec_shorten 11557
ZX_equal1 12850
R_abs_shallow 13097
gchar_get_nfprec 13468
closure_get_dbg 13635
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15435
znstar_get_gen 16150
gchar_get_cyc 16177
mkmat3 17001
zeropadic_shallow 17024
gchar_get_r1 17444
Fp_muls 17780
gchar_get_prec 18795
vec_lengthen 18960
FqX_halve 19411
pari_err_INV 20018
FpXY_Fq_evaly 20587
rnf_get_nfdegree 21455
FqX_mulu 21942
nf_get_Tr 22084
gtomp 22428
RgM_fpnorml2 22661
FqXQ_mul 22766
ZV_dvd 23485
gal_get_mod 23758
FqX_neg 24956
FqX_red 25354
bnf_get_fu 25856
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
gal_get_roots 32731
gchar_get_basis 32816
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33546
Qtoss 35322
gal_get_pol 36315
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37079
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 37914
FqX_div 38565
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47720
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58504
RgX_fpnorml2 61495
err_get_num 62551
bid_get_gen 64274
nf_get_ramified_primes 64644
RgX_is_rational 68166
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 75641
bnr_get_mod 77118
gal_get_group 80385
mkcol3 88314
cyclic_perm 99911
gtou 100711
mkcol4 103467
zv_to_zx 104146
mkmoo 108795
zeromat 109093
RgV_isin 110144
RgV_isin_i 110144
mkvec2copy 114528
Q_abs_shallow 120221
mkmatcopy 122297
mkveccopy 122521
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138438
zeroser 138908
RgV_is_QV 140733
FqX_factor 140946
get_FpXQX_mod 146583
FlxqX_div_pre 165416
znstar_get_U 176107
rowslicepermute 185187
vecsmall_prepend 186970
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200441
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220251
mkcol6 232470
ellR_get_prec 232750
zero_Flm_copy 238230
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249620
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264420
bnr_get_no 277488
gchar_get_zm 281911
bnf_get_tuN 283003
bnf_get_fu_nocheck 289089
bnf_get_tuU 303581
nf_get_G 304914
vec_prepend 314007
get_FlxqX_degree 317565
rnf_get_polabs 327628
Flx_constant 333924
cxtoreal 337208
upr_norm 346135
RgX_renormalize 349807
abgrp_get_no 354946
ZM_hnfrem 363790
FqX_mul 367703
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384918
RgX_is_QX 399933
perm_conj 418299
FqX_Fq_mul 427293
FqX_extgcd 444660
Z_issquare 458713
nf_get_disc 463480
precdbl 475374
RgX_shift_inplace 479366
RgX_shift_inplace_init 479366
zv_to_ZV 502982
vecsmall_to_vec 511781
nf_get_sign 519551
mkvec3s 524441
gdivsg 531590
addmuliu 535790
FqX_Fp_mul 571434
prec2nbits_mul 581167
vecsmall_ei 584726
ZM_ZV_mod 596514
RgC_fpnorml2 619848
FqX_is_squarefree 683802
vecreverse 697277
mkrfrac 698439
coltrunc_init 740250
logint 754833
gcmpgs 761924
row 763884
rnf_get_nf 786086
ellff_get_a4a6 800028
zero_F2m_copy 845046
FpXX_renormalize 849917
zeropadic 855724
gmin_shallow 877633
affgr 898901
ZXQ_sqr 960437
cgetc 975461
Flx_lead 978877
polx_F2x 1078551
pr_norm 1090489
sstoQ 1097215
Fp_invsafe 1100360
Flx_mulu 1105399
vecsmall_max 1163986
mkfracss 1209563
RgV_isscalar 1210273
gen_I 1269711
RgX_is_monomial 1331377
mkoo 1331933
bnf_get_sunits 1367776
rnf_get_absdegree 1392746
bnr_get_nf 1399091
zero_Flx 1427082
constant_coeff 1441109
Rg_col_ei 1450983
inf_get_sign 1452978
vecsmall_concat 1464230
guncloneNULL_deep 1497540
nf_get_varn 1503754
bid_get_mod 1521920
F2m_flip 1554224
F2v_flip 1554224
F2x_flip 1554224
F2x_div 1570961
uutoQ 1600198
nf_get_roots 1628983
bnf_get_gen 1680310
vec_ei 1713869
mkvecsmall5 1717495
ulogint 1723558
gsubgs 1724814
nf_get_roundG 1748223
abgrp_get_gen 1765022
ellinf 1869927
modpr_get_p 1887627
get_F2x_degree 1929060
killblock 1952530
Flx_div 1998009
ellnf_get_nf 2027226
ellff_get_field 2036865
bnr_get_bid 2046097
ell_get_j 2126269
bid_get_MOD 2157253
bid_get_sprk 2157984
ZXQ_mul 2161181
zv_copy 2183738
bid_get_fact2 2201577
gc_slice 2204107
pol_xn 2249292
pari_realloc_ip 2347660
bid_get_archp 2397147
bid_get_fact 2498946
get_F2x_mod 2499314
rnf_get_degree 2506335
bnr_get_cyc 2522580
get_F2x_var 2534059
ell_get_b4 2550216
Flv_copy 2554972
mul_content 2657364
RgX_coeff 2669861
vecslicepermute 2691146
cyc_get_expo 2757545
hash_str 2760615
perm_inv 2781991
sqrtnr 2810292
zero_Flm 2829611
bnr_get_clgp 2830252
rnf_get_pol 2845192
znstar_get_pe 2869063
F2x_equal1 2874021
bnf_get_logfu 2874774
gisdouble 2996894
mkpolmod 3103727
Fq_red 3106362
bit_accuracy_mul 3175484
ZV_to_zv 3211408
identity_perm 3241740
F3m_coeff 3255865
identity_zv 3266093
znstar_get_conreygen 3290176
ell_get_b8 3297414
get_FpX_mod 3394372
vec_append 3465124
zero_F2v 3647732
bid_get_U 3680233
bnf_get_cyc 3686148
bnr_get_bnf 3710953
nf_get_index 3711392
pol_1 3755707
pol_x 3857071
ell_get_b6 3863115
mulsubii 3882379
pol1_F2x 3957953
vec_to_vecsmall 4036647
vecsmall_append 4099604
sqrfrac 4148220
vecsmall_copy 4403870
mkcol2s 4416244
F2x_equal 4666245
FpXQX_renormalize 4694111
mkmat 4750847
qfb_disc3 4996090
mkfraccopy 4999681
is_rational_t 5032581
bnf_get_clgp 5374997
nf_get_zkprimpart 5414117
nf_get_zkden 5459869
FpX_div 5581210
checkell_i 5593288
isintm1 5710165
bid_get_cyc 5739865
bid_get_grp 5804716
pari_stack_delete 5854663
col_ei 5924532
pari_stack_init 6351953
get_FpX_degree 6424452
Flm_copy 6433446
sqrti 6610257
get_FpX_var 6957849
RgX_div 7000642
vecsmall_lexcmp 7043253
ell_get_a2 7106186
ZM_lll 7118081
RgX_gtofp 7144837
znstar_get_faN 7331711
ell_get_b2 7371024
ZX_is_monic 7374308
zc_to_ZC 7824814
vecsmall_to_col 7838996
znstar_get_conreycyc 7979693
F2m_coeff 8038629
Q_abs 8062623
mkintmod 8092502
ZV_ZV_mod 8131562
RgM_gtofp 8258553
Flx_equal1 8329949
gc_INT_affii 8489527
ell_get_a4 8536727
Flm_row 8741254
ell_get_a3 8814048
ell_get_a1 8997080
cxtofp 9079057
veclast 9372715
ismpzero 9584718
is_intreal_t 9584817
const_col 9729689
RgM_dimensions 9741638
nf_get_invzk 9767556
bnf_get_nf 9865172
mkvec4 10093884
ser_isexactzero 10120284
ell_get_a6 10370965
mkcol 10639758
ZC_hnfrem 10697582
mul_denom 10707851
ell_get_c4 11017955
Fp_addmul 11216586
vectrunc_init 11768930
pr_get_gen 12071294
abgrp_get_cyc 12230878
F2v_clear 12353907
F2x_clear 12353914
ell_get_type 12499016
nbits2nlong 12756269
pol0_F2x 13249270
ell_get_c6 13474418
gmax_shallow 13510200
modpr_get_T 13867073
zeromatcopy 14250854
rowpermute 14706088
closure_get_frame 14717284
Fp_div 15034668
Fp_divu 15129183
mkvec5 15185732
vectrunc_append 15853463
pr_get_e 16162170
ell_get_disc 16815002
matslice 16820126
normalize_frac 17205812
pr_is_inert 17224249
isint1 17584736
Fp_center_i 17992062
cxcompotor 18209918
qfb_disc 18502568
mkvecsmall4 18675755
const_vecsmall 19706246
vecpermute 20549862
Fp_double 20800592
Flx_div_pre 21686330
nf_get_M 21746045
RgM_shallowcopy 22179624
RgX_is_ZX 22423453
gmulgs 22647879
Fp_inv 23440853
nf_get_r1 23466547
ZV_isscalar 23675297
get_Flx_mod 25595633
pr_get_f 26443207
RgX_equal_var 26883012
shallowcopy 27632172
mkqfb 27930289
zerovec 28453559
modpr_get_pr 31236527
Fp_neg 31480602
hash_str_len 31630615
submulii 31982591
RgV_is_ZV 32158274
mkmat2 33654058
RgC_gtofp 34035916
const_vec 34565198
zero_zv 36735549
polx_Flx 37486169
lincombii 38242977
znstar_get_N 38655073
mkfrac 41643269
zeropol 42353951
powii 43130381
is_vec_t 43948820
closure_is_variadic 45904956
absfrac 46638733
guncloneNULL 48013569
pr_get_tau 49768725
mkmat22 50282596
ell_is_inf 52368140
QV_isscalar 54417367
pol1_Flx 55058501
addmuliu_inplace 59660935
zero_Flv 59674634
submuliu_inplace 60156834
F2x_copy 60493684
gtodouble 60779131
is_real_t 62062464
qfb_is_qfi 62335403
Fp_sqr 63461062
Fp_mulu 67422754
get_Flx_var 68356081
mkvec 71190909
nf_get_degree 71371255
Fp_center 77185790
vecsmallpermute 78702646
rowslice 79329084
sqrtr 80374711
perm_mul 80897859
Fp_red 82197107
get_Flx_degree 82237120
pol_0 82996617
gtos 85855648
is_noncalc_t 85872126
cxnorm 91197029
mkcomplex 91608143
pr_get_p 92750849
dbllog2r 92816146
nf_get_pol 98110160
vecsmalltrunc_append 100793056
F2v_set 101403603
cgiv 102686441
RgX_copy 103406611
pol0_Flx 103490920
prec2nbits 103968428
mkvecsmall3 104184318
vecsmall_prefixcmp 108088071
gc_all 109637450
F2x_renormalize 115299316
mkvec3 117907098
zerocol 122342353
gaddgs 123248642
both_odd 124052490
F2x_set 124765340
nchar2nlong 127568722
mkvecsmall 131654538
equalim1 139505489
bit_prec 143263067
FpX_renormalize 144210554
ZX_renormalize 155001266
mkcol2 156878267
nbrows 157476026
leading_coeff 170260985
Flx_copy 173209307
Fp_add 180993685
mkvec2 185101675
nbits2prec 186142212
vecsmalltrunc_init 189455649
Fp_mul 200692727
Fp_sub 202352924
mkvecsmall2 234954783
gtofp 254364569
gc_GEN 255457345
gmulgu 282059385
lg_increase 315978206
closure_get_data 321613198
closure_get_oper 321627179
closure_codestr 321641360
is_universal_constant 326410404
lgcols 351608519
closure_arity 372069530
is_scalar_t 375659083
bin_copy 496064796
pari_free 509558566
is_bigint 563419115
leafcopy_avma 577149150
vecslice 656420225
is_matvec_t 659053236
F2v_coeff 661320138
F2x_coeff 667920201
pari_malloc 745501640
pari_stack_new 926460849
GENbinbase 961917043
pari_stack_alloc 1021772702
pari_stack_base 1027558361
gc_leaf 1136955427
equali1 1174382276
nbits2extraprec 1458225690
gc_upto 1954513002
odd 2089699649
is_pm1 2205159358
lgpol 2685761147
isintzero 2844719897
bit_accuracy 3160138369
gc_INT 4110998482
prec2lg 4469233454
is_const_t 4898837406
degpol 5491327674
remsBIL 8002085712
icopy_avma 8040039551
divsBIL 8092944410
isonstack 8273359209
is_recursive_t 9238431093

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