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 30672-116f3d5b0e) Lines: 1421 1535 92.6 %
Date: 2026-02-06 09:23:51 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 15434
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 22083
gtomp 22428
RgM_fpnorml2 22662
FqXQ_mul 22766
ZV_dvd 23485
gal_get_mod 23758
FqX_neg 24956
FqX_red 25354
bnf_get_fu 25859
nfV_to_scalar_or_alg 26299
gal_get_den 27867
gal_get_invvdm 27874
absfrac_shallow 28237
gequalgs 29176
zerovec_block 29654
gener_Fq_local 29946
gal_get_roots 32732
gchar_get_basis 32816
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33557
Qtoss 35364
gal_get_pol 36316
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37079
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 37913
FqX_div 38568
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47734
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 61600
err_get_num 62550
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 75640
bnr_get_mod 77119
gal_get_group 80385
mkcol3 88314
cyclic_perm 99911
gtou 100717
mkcol4 103467
zv_to_zx 104146
mkmoo 108800
zeromat 109074
RgV_isin 110144
RgV_isin_i 110144
mkvec2copy 114530
Q_abs_shallow 120221
mkmatcopy 122286
mkveccopy 122521
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138437
zeroser 138943
RgV_is_QV 140736
FqX_factor 140946
get_FpXQX_mod 146583
FlxqX_div_pre 165412
znstar_get_U 176107
rowslicepermute 185120
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200432
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220248
mkcol6 232470
ellR_get_prec 232750
zero_Flm_copy 238232
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249623
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264420
bnr_get_no 277484
gchar_get_zm 281911
bnf_get_tuN 282996
bnf_get_fu_nocheck 289084
bnf_get_tuU 303576
nf_get_G 304861
vec_prepend 314009
get_FlxqX_degree 317565
rnf_get_polabs 327628
Flx_constant 334016
cxtoreal 337207
upr_norm 346136
RgX_renormalize 349807
abgrp_get_no 354944
ZM_hnfrem 363808
FqX_mul 367708
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384947
RgX_is_QX 399940
perm_conj 418299
FqX_Fq_mul 427295
FqX_extgcd 444769
Z_issquare 457640
nf_get_disc 463484
precdbl 475397
RgX_shift_inplace 479366
RgX_shift_inplace_init 479366
zv_to_ZV 502982
vecsmall_to_vec 511781
nf_get_sign 519552
mkvec3s 524441
gdivsg 531590
addmuliu 535763
FqX_Fp_mul 571661
prec2nbits_mul 581167
vecsmall_ei 584709
ZM_ZV_mod 596611
RgC_fpnorml2 619852
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740250
logint 754835
gcmpgs 761909
row 763893
rnf_get_nf 786086
ellff_get_a4a6 800035
zero_F2m_copy 845031
FpXX_renormalize 849903
zeropadic 855910
gmin_shallow 877783
affgr 899594
ZXQ_sqr 960449
cgetc 975460
Flx_lead 979130
polx_F2x 1078597
pr_norm 1090515
sstoQ 1097313
Fp_invsafe 1100335
Flx_mulu 1105470
vecsmall_max 1164220
mkfracss 1209563
RgV_isscalar 1210270
gen_I 1269741
RgX_is_monomial 1331365
mkoo 1331890
bnf_get_sunits 1367773
rnf_get_absdegree 1392746
bnr_get_nf 1399069
zero_Flx 1426821
constant_coeff 1441448
Rg_col_ei 1451009
inf_get_sign 1452946
vecsmall_concat 1464275
guncloneNULL_deep 1488333
nf_get_varn 1503780
bid_get_mod 1521922
F2m_flip 1554314
F2v_flip 1554314
F2x_flip 1554314
F2x_div 1571358
uutoQ 1602144
nf_get_roots 1628913
bnf_get_gen 1680301
ulogint 1713258
vec_ei 1713790
mkvecsmall5 1717471
gsubgs 1724806
nf_get_roundG 1748166
abgrp_get_gen 1765014
ellinf 1869996
modpr_get_p 1887627
get_F2x_degree 1929022
killblock 1947540
Flx_div 1997939
ellnf_get_nf 2027270
ellff_get_field 2036866
bnr_get_bid 2046040
ell_get_j 2126269
bid_get_MOD 2157251
bid_get_sprk 2157981
ZXQ_mul 2161219
zv_copy 2183730
bid_get_fact2 2201575
gc_slice 2204159
pol_xn 2249288
pari_realloc_ip 2349402
bid_get_archp 2397137
bid_get_fact 2498947
get_F2x_mod 2499306
rnf_get_degree 2506335
bnr_get_cyc 2522563
get_F2x_var 2534017
ell_get_b4 2550216
Flv_copy 2554992
mul_content 2657110
RgX_coeff 2669861
vecslicepermute 2691676
cyc_get_expo 2757562
hash_str 2760615
perm_inv 2782021
sqrtnr 2810146
bnr_get_clgp 2830241
zero_Flm 2830463
rnf_get_pol 2845192
znstar_get_pe 2869063
F2x_equal1 2874030
bnf_get_logfu 2874772
gisdouble 2995791
mkpolmod 3103720
Fq_red 3106627
bit_accuracy_mul 3175484
ZV_to_zv 3211716
identity_perm 3242056
F3m_coeff 3255862
identity_zv 3266406
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3394348
vec_append 3464574
zero_F2v 3647711
bid_get_U 3680234
bnf_get_cyc 3686135
bnr_get_bnf 3710944
nf_get_index 3711406
pol_1 3755724
pol_x 3857331
ell_get_b6 3863115
mulsubii 3881519
pol1_F2x 3957589
vec_to_vecsmall 4036917
vecsmall_append 4114703
sqrfrac 4148329
vecsmall_copy 4403827
mkcol2s 4416244
F2x_equal 4671235
FpXQX_renormalize 4694524
mkmat 4750931
qfb_disc3 4995816
mkfraccopy 4999896
is_rational_t 5032640
bnf_get_clgp 5374977
nf_get_zkprimpart 5414067
nf_get_zkden 5459905
FpX_div 5581172
checkell_i 5593276
isintm1 5710340
bid_get_cyc 5739845
pari_stack_delete 5796963
bid_get_grp 5804701
col_ei 5924623
pari_stack_init 6352134
get_FpX_degree 6424395
Flm_copy 6433683
sqrti 6610225
get_FpX_var 6958250
RgX_div 7000642
vecsmall_lexcmp 7043255
ell_get_a2 7106183
ZM_lll 7117537
RgX_gtofp 7145224
znstar_get_faN 7334819
ell_get_b2 7371036
ZX_is_monic 7374299
zc_to_ZC 7824609
vecsmall_to_col 7838788
znstar_get_conreycyc 7982108
F2m_coeff 8038865
Q_abs 8062829
mkintmod 8092625
ZV_ZV_mod 8131898
RgM_gtofp 8257684
Flx_equal1 8329915
gc_INT_affii 8496859
ell_get_a4 8536724
Flm_row 8742166
ell_get_a3 8814057
ell_get_a1 8997089
cxtofp 9079411
veclast 9372707
ismpzero 9584517
is_intreal_t 9584623
const_col 9729683
RgM_dimensions 9741734
nf_get_invzk 9767606
bnf_get_nf 9865151
mkvec4 10094898
ser_isexactzero 10120326
ell_get_a6 10370962
mkcol 10639786
ZC_hnfrem 10697574
mul_denom 10707984
ell_get_c4 11018145
Fp_addmul 11292421
vectrunc_init 11768369
pr_get_gen 12071119
abgrp_get_cyc 12230816
F2x_clear 12353922
F2v_clear 12353930
ell_get_type 12498978
nbits2nlong 12754801
pol0_F2x 13251154
ell_get_c6 13474585
gmax_shallow 13510196
modpr_get_T 13867132
zeromatcopy 14249607
rowpermute 14706657
closure_get_frame 14717148
Fp_div 15035102
Fp_divu 15129582
mkvec5 15185902
vectrunc_append 15856844
pr_get_e 16162084
ell_get_disc 16815311
matslice 16825355
normalize_frac 17206965
pr_is_inert 17224142
isint1 17586414
Fp_center_i 18051401
cxcompotor 18210736
qfb_disc 18502572
mkvecsmall4 18678855
const_vecsmall 19706608
vecpermute 20550252
Fp_double 20984737
Flx_div_pre 21692153
nf_get_M 21745882
RgM_shallowcopy 22179571
RgX_is_ZX 22423339
gmulgs 22563334
Fp_inv 23440744
nf_get_r1 23466335
ZV_isscalar 23675150
get_Flx_mod 25598023
pr_get_f 26443390
RgX_equal_var 26883022
shallowcopy 27632145
mkqfb 27929824
zerovec 29292089
modpr_get_pr 31236658
Fp_neg 31479712
hash_str_len 31631695
submulii 31982591
RgV_is_ZV 32160176
mkmat2 33654262
RgC_gtofp 34029225
const_vec 34568639
zero_zv 36737790
polx_Flx 37490494
lincombii 38230665
znstar_get_N 38658713
mkfrac 41641424
zeropol 42353988
powii 43130371
is_vec_t 43952463
closure_is_variadic 45906680
absfrac 46540224
guncloneNULL 48003520
pr_get_tau 49768721
mkmat22 50293541
ell_is_inf 52423297
QV_isscalar 54417040
pol1_Flx 55062004
zero_Flv 59677200
addmuliu_inplace 59713845
submuliu_inplace 60201069
F2x_copy 60553057
gtodouble 60780688
is_real_t 62062525
qfb_is_qfi 62325799
Fp_sqr 64660845
get_Flx_var 68358167
Fp_mulu 69129745
mkvec 71292020
nf_get_degree 71370120
Fp_center 77362255
vecsmallpermute 78724339
rowslice 79360272
sqrtr 80372792
perm_mul 80919142
Fp_red 82192883
pol_0 82789223
get_Flx_degree 83020840
gtos 85855674
is_noncalc_t 85871554
cxnorm 91201194
mkcomplex 91614065
pr_get_p 92751041
dbllog2r 92818909
nf_get_pol 98109729
vecsmalltrunc_append 100887320
F2v_set 101403574
cgiv 102690534
RgX_copy 103406858
pol0_Flx 103490842
prec2nbits 103968264
mkvecsmall3 104189779
vecsmall_prefixcmp 108088071
gc_all 109639550
F2x_renormalize 115388627
mkvec3 120248947
zerocol 122330373
gaddgs 123248630
both_odd 124211566
F2x_set 124777871
nchar2nlong 127558124
mkvecsmall 131653016
equalim1 139505572
bit_prec 143243836
FpX_renormalize 144225051
ZX_renormalize 155031199
mkcol2 156925962
nbrows 157465825
leading_coeff 170224118
Flx_copy 173240189
Fp_add 181434170
mkvec2 185108647
nbits2prec 186120082
vecsmalltrunc_init 189715464
Fp_mul 200937180
Fp_sub 203354938
mkvecsmall2 234990106
gtofp 254325986
gc_GEN 255458621
gmulgu 283104681
lg_increase 316320995
closure_get_data 320748131
closure_get_oper 320771756
closure_codestr 320785211
is_universal_constant 326689113
lgcols 351655079
closure_arity 371198120
is_scalar_t 375660103
bin_copy 495996757
pari_free 509470888
is_bigint 563382512
leafcopy_avma 577325320
vecslice 656649103
is_matvec_t 658219528
F2v_coeff 661321847
F2x_coeff 667898071
pari_malloc 745420345
pari_stack_new 925520702
GENbinbase 961776542
pari_stack_alloc 1020828410
pari_stack_base 1026602806
gc_leaf 1140421885
equali1 1174154143
nbits2extraprec 1458354785
gc_upto 1955401150
odd 2089350859
is_pm1 2205866089
lgpol 2693591154
isintzero 2844866397
bit_accuracy 3160698299
gc_INT 4113513044
prec2lg 4469686606
is_const_t 4900741023
degpol 5505981455
remsBIL 8004303126
icopy_avma 8042746529
divsBIL 8095465385
isonstack 8279482495
is_recursive_t 9238875225

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