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 30862-ea47bd413c) Lines: 1421 1535 92.6 %
Date: 2026-05-06 09:26:47 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 637
gchar_set_nalg 637
gchar_set_nfree 637
gchar_set_ntors 637
bnf_get_reg 648
pari_err_DIM 718
perm_sqr 728
Rg_to_Fq 756
F2m_set 798
row_i 987
RgM_minor 1036
quad_disc 1085
ellQp_get_p 1134
zero_F2x 1181
gchar_set_m0 1190
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
gchar_copy_precs 1470
gchar_set_prec 1470
gchar_set_basis 1827
gchar_set_cyc 1827
mkintmodu 1834
pari_realloc 1887
RgXQX_div 1904
gchar_get_sfu 1996
mkpadic 2009
gchar_set_evalprec 2086
gchar_get_nm 2108
gchar_set_u0 2142
gchar_get_nalg 2296
gchar_set_nf 2363
vecreverse_inplace 2612
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2876
vecsmall_reverse 3052
vecsmall_to_vec_inplace 3304
gchar_set_nfprec 3466
pari_err_TYPE2 3493
get_FpXQX_degree 3589
vecsmall_min 3710
gchar_get_m0 3823
gchar_get_evalprec 4011
gchar_get_modP 4095
FqX_normalize 4144
nf_get_r2 4154
nf_get_zk 4382
nf_get_diff 4445
F2v_copy 4487
FpXQX_div 4526
rnf_get_zk 4830
rnf_get_nfvarn 4886
matpascal 4935
gchar_get_u0 5002
idealchineseinit 5427
pari_stack_pushp 5842
FqX_get_red 6090
gal_get_p 6118
gval 6391
FqXn_expint 6590
gal_get_orders 6706
is_extscalar_t 6904
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 8386
vectrunc_append_batch 9667
prec2ndec 9778
cgetalloc 10157
ZX_equal1 10488
gchar_get_Ui 11096
vec_shorten 11563
R_abs_shallow 13097
closure_get_dbg 13660
gchar_get_nfprec 13854
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15491
znstar_get_gen 16150
gchar_get_cyc 16535
mkmat3 17001
zeropadic_shallow 17150
gchar_get_r1 17683
Fp_muls 17780
vec_lengthen 18960
FqX_halve 19411
gchar_get_prec 19427
pari_err_INV 20025
FpXY_Fq_evaly 20587
rnf_get_nfdegree 21455
FqX_mulu 21942
gtomp 22428
FqXQ_mul 22766
RgM_fpnorml2 22788
nf_get_Tr 23347
ZV_dvd 23485
gal_get_mod 23870
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 32844
F2xqX_div 33173
mkcolcopy 33583
ndec2prec 33615
gchar_get_basis 34731
Qtoss 35364
gal_get_pol 36428
closure_get_text 37150
FqX_rem 37743
F2v_to_F2x 37921
gchar_get_S 38371
gchar_get_ns 38371
FqX_div 38567
gchar_get_nc 38876
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41885
znstar_get_Ui 46788
FqX_degfact 47786
pari_calloc 48127
bid_get_sarch 48594
vecmoduu 49784
get_FpXQX_var 51630
gchar_get_loccyc 52520
locs_get_cyc 54144
div_content 58511
err_get_num 62602
RgX_fpnorml2 63069
bid_get_gen 64274
nf_get_ramified_primes 64644
RgX_is_rational 68292
FqX_sub 68607
mkquad 69118
FqX_div_by_X_x 69699
quadnorm 69881
FqX_sqr 71855
bid_get_ideal 72849
Fq_to_FpXQ 73652
vecsmall_shorten 75754
bnr_get_mod 77126
gal_get_group 80416
mkcol3 88314
cyclic_perm 99932
gtou 100675
mkcol4 103467
zv_to_zx 104146
mkmoo 108933
zeromat 109009
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114551
Q_abs_shallow 120227
mkmatcopy 122299
mkveccopy 122528
FqX_add 127694
RgXQX_rem 127914
rnf_get_map 135659
zeroser 139013
idealred 139142
FqX_factor 140960
RgV_is_QV 142050
get_FpXQX_mod 146583
FlxqX_div_pre 165414
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 192479
locs_get_Lsprk 195755
F2m_copy 200655
get_F2xqX_degree 200851
rowcopy 204988
mkmat22s 207578
gchar_get_bnf 207685
locs_get_m_infty 211534
mkvec2s 220778
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234345
zero_Flm_copy 238326
Fp_halve 247271
gchar_get_nf 247942
affc_fixlg 250435
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264435
bnr_get_no 277493
bnf_get_tuN 283013
gchar_get_zm 286343
bnf_get_fu_nocheck 289081
bnf_get_tuU 303593
nf_get_G 304835
vec_prepend 313931
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 338018
upr_norm 347920
RgX_renormalize 349807
FqX_mul 368762
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385275
RgX_is_QX 400070
ZM_hnfrem 401371
abgrp_get_no 406746
perm_conj 418299
FqX_Fq_mul 427303
FqX_extgcd 447452
nf_get_disc 464451
precdbl 476422
RgX_shift_inplace 479481
RgX_shift_inplace_init 479481
Z_issquare 509448
nf_get_sign 522480
mkvec3s 524441
addmuliu 541599
ellff_get_a4a6 551463
gdivsg 561955
zv_to_ZV 569244
FqX_Fp_mul 576296
vecsmall_to_vec 578148
prec2nbits_mul 581910
vecsmall_ei 585117
ZM_ZV_mod 610715
RgC_fpnorml2 619956
powIs 620095
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698726
coltrunc_init 740257
logint 757053
gcmpgs 761939
row 763903
rnf_get_nf 786086
affgr 795161
zero_F2m_copy 845252
FpXX_renormalize 849322
zeropadic 857194
gmin_shallow 901215
ellinf 913706
ZXQ_sqr 961537
cgetc 976271
Flx_lead 1069238
polx_F2x 1073914
pr_norm 1090582
Flx_constant 1091662
Fp_invsafe 1097241
sstoQ 1097313
Flx_mulu 1105470
vecsmall_max 1178347
mkfracss 1209563
RgV_isscalar 1211817
gen_I 1269142
RgX_is_monomial 1328372
mkoo 1332110
bnf_get_sunits 1369338
rnf_get_absdegree 1392746
bnr_get_nf 1399105
constant_coeff 1445631
Rg_col_ei 1451481
inf_get_sign 1453270
vecsmall_concat 1464529
guncloneNULL_deep 1503157
nf_get_varn 1503831
bid_get_mod 1521922
F2v_flip 1553598
F2x_flip 1553598
F2m_flip 1553599
F2x_div 1558120
uutoQ 1602256
nf_get_roots 1632081
bnf_get_gen 1681862
zv_copy 1687670
vec_ei 1714863
mkvecsmall5 1718452
gsubgs 1731752
nf_get_roundG 1749976
abgrp_get_gen 1766575
ellff_get_field 1790611
modpr_get_p 1887626
get_F2x_degree 1928528
killblock 1955987
Flx_div 1999855
ellnf_get_nf 2027263
bnr_get_bid 2046088
Flv_copy 2058934
ulogint 2079131
ell_get_j 2126269
bid_get_MOD 2157249
bid_get_sprk 2157981
ZXQ_mul 2166559
get_F2x_var 2168661
bid_get_fact2 2201570
gc_slice 2211721
pol_xn 2253997
pari_realloc_ip 2350424
bid_get_archp 2397113
bid_get_fact 2498938
rnf_get_degree 2506335
bnr_get_cyc 2522581
ell_get_b4 2550293
mul_content 2659223
cyc_get_expo 2757540
hash_str 2782958
sqrtnr 2810780
bnr_get_clgp 2830262
zero_Flm 2831027
rnf_get_pol 2845192
vecslicepermute 2857965
znstar_get_pe 2869070
F2x_equal1 2873709
bnf_get_logfu 2877854
RgX_coeff 2908792
gisdouble 2996214
Fq_red 3106444
bit_accuracy_mul 3175844
ZV_to_zv 3211716
identity_perm 3243454
zero_Flx 3255130
F3m_coeff 3255610
mkpolmod 3262568
identity_zv 3267817
znstar_get_conreygen 3290533
ell_get_b8 3297414
get_F2x_mod 3307654
get_FpX_mod 3387864
vec_append 3469080
zero_F2v 3656457
bid_get_U 3680231
bnf_get_cyc 3689957
bnr_get_bnf 3710958
nf_get_index 3715899
perm_inv 3747501
pol_1 3753746
ell_get_b6 3863192
pol_x 3866574
mulsubii 3894018
vec_to_vecsmall 4041818
vecsmall_append 4114729
F2x_equal 4134176
sqrfrac 4224599
mkcol2s 4416244
FpXQX_renormalize 4688700
pol1_F2x 4768583
mkmat 4783445
qfb_disc3 4998076
mkfraccopy 5010462
is_rational_t 5019603
bnf_get_clgp 5380381
nf_get_zkprimpart 5417998
nf_get_zkden 5463810
FpX_div 5583731
bid_get_cyc 5739818
bid_get_grp 5804672
pari_stack_delete 5865118
col_ei 5927285
isintm1 6222521
pari_stack_init 6351362
Flm_copy 6435900
sqrti 6615019
get_FpX_var 6952176
get_FpX_degree 6969206
RgX_div 6998920
vecsmall_lexcmp 7043259
ZM_lll 7139478
RgX_gtofp 7166487
znstar_get_faN 7334854
vecsmall_copy 7341212
ell_get_b2 7371404
ZX_is_monic 7670847
zc_to_ZC 7913665
vecsmall_to_col 7928210
znstar_get_conreycyc 7982136
mkintmod 8066779
checkell_i 8103707
Q_abs 8125745
ZV_ZV_mod 8147205
Flx_equal1 8200485
RgM_gtofp 8258359
F2m_coeff 8356744
Flm_row 8743070
cxtofp 9116476
veclast 9374342
ismpzero 9716474
is_intreal_t 9716597
const_col 9730225
nf_get_invzk 9778592
bnf_get_nf 9875228
RgM_dimensions 9955588
mkvec4 10157086
ell_get_a4 10325143
ell_get_a6 10371103
mkcol 10661536
ZC_hnfrem 10697243
mul_denom 10754958
ell_get_c4 11018680
ell_get_a2 11108725
Fp_addmul 11260583
gc_INT_affii 11578599
vectrunc_init 11767153
ser_isexactzero 11871118
pr_get_gen 12076240
abgrp_get_cyc 12234601
F2v_clear 12360648
F2x_clear 12360658
nbits2nlong 12771239
ell_get_a3 12863762
zeropol 12924482
ell_get_c6 13474409
gmax_shallow 13510225
modpr_get_T 13867138
zeromatcopy 14379934
closure_get_frame 14695314
rowpermute 14762843
ell_get_type 14945237
Fp_div 15034566
Fp_divu 15129074
mkvec5 15189819
vectrunc_append 15857814
pr_get_e 16167946
ell_get_disc 16815964
matslice 16825722
ell_get_a1 17049195
pr_is_inert 17228110
pol0_F2x 17308336
normalize_frac 17574596
Fp_center_i 18057994
isint1 18136560
cxcompotor 18284466
qfb_disc 18502545
mkvecsmall4 18668493
const_vecsmall 18862732
Fp_double 20891859
vecpermute 21117030
Flx_div_pre 21724235
nf_get_M 21750190
RgM_shallowcopy 22235123
RgX_is_ZX 22395427
Fp_inv 23417231
nf_get_r1 23473436
ZV_isscalar 23678955
gmulgs 23865192
get_Flx_mod 25514150
pr_get_f 26449181
RgX_equal_var 27139608
pol_0 27280953
shallowcopy 27900892
mkqfb 27934268
zerovec 29349358
modpr_get_pr 31236615
hash_str_len 31624919
submulii 31985175
RgV_is_ZV 32100568
Fp_neg 32670139
mkmat2 33664719
RgC_gtofp 34037395
const_vec 34656315
polx_Flx 37513582
lincombii 38269094
znstar_get_N 38658755
zero_zv 39502747
mkfrac 42760381
powii 43129427
is_vec_t 44038387
closure_is_variadic 45955309
absfrac 47977003
guncloneNULL 49236792
pr_get_tau 49777656
ell_is_inf 50202583
mkmat22 50278065
QV_isscalar 54428210
pol1_Flx 55769529
addmuliu_inplace 59559043
submuliu_inplace 60066404
is_real_t 61906222
zero_Flv 61981833
F2x_copy 63927164
Fp_sqr 63996798
qfb_is_qfi 64515745
Fp_mulu 64988793
gtodouble 66207670
get_Flx_var 68293653
mkvec 68961201
nf_get_degree 71393213
Fp_center 77299371
vecsmallpermute 78758661
rowslice 79459961
perm_mul 80954942
get_Flx_degree 81940515
Fp_red 82930918
gtos 85880041
sqrtr 87157059
is_noncalc_t 88525027
pr_get_p 92765483
mkcomplex 92913480
dbllog2r 94384564
cxnorm 95131744
nf_get_pol 98152252
vecsmalltrunc_append 100936821
gc_all 102472256
RgX_copy 102879114
mkvecsmall3 103276226
F2v_set 104113109
cgiv 105494221
prec2nbits 107069467
vecsmall_prefixcmp 108088071
pol0_Flx 111686408
mkvec3 118991480
gaddgs 123273222
both_odd 123355442
zerocol 125201959
F2x_renormalize 126977206
nchar2nlong 127866256
F2x_set 129778291
equalim1 139581708
mkvecsmall 140534717
bit_prec 143423380
FpX_renormalize 147093156
mkcol2 157102403
ZX_renormalize 157622014
nbrows 158370583
leading_coeff 169748140
Flx_copy 175931916
Fp_add 183426761
nbits2prec 189088826
Fp_sub 201545256
Fp_mul 203845327
mkvec2 213218782
vecsmalltrunc_init 239685907
gc_GEN 247575819
mkvecsmall2 257024471
gtofp 257211273
gmulgu 283377954
closure_get_data 306292229
closure_get_oper 306320642
closure_codestr 306344846
is_universal_constant 326574023
lgcols 352823258
closure_arity 356770376
is_scalar_t 404105637
lg_increase 433291519
bin_copy 473549980
pari_free 487894130
is_bigint 574897047
leafcopy_avma 595340979
vecslice 657400456
F2v_coeff 664425023
F2x_coeff 671007904
pari_malloc 723391104
is_matvec_t 744453852
pari_stack_new 910862501
GENbinbase 920328497
pari_stack_alloc 1006224595
pari_stack_base 1012066032
gc_leaf 1160567041
equali1 1172358811
nbits2extraprec 1498725116
gc_upto 1975749400
odd 2124026495
is_pm1 2218018638
lgpol 2622718715
isintzero 2866113714
bit_accuracy 3144289394
gc_INT 4139876626
prec2lg 4576446627
is_const_t 5010072460
degpol 5509980793
icopy_avma 8056329429
remsBIL 8155818524
divsBIL 8247368021
isonstack 8366220071
is_recursive_t 9130719631

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