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 30831-19b50a36d0) Lines: 1421 1535 92.6 %
Date: 2026-04-22 09:25:48 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
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_get_sfu 1743
gchar_set_evalprec 1813
mkintmodu 1834
gchar_get_nm 1869
pari_realloc 1887
RgXQX_div 1904
mkpadic 2009
gchar_get_nalg 2044
gchar_set_nf 2110
gchar_set_u0 2121
vecreverse_inplace 2605
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2876
gchar_set_nfprec 2968
vecsmall_reverse 3052
vecsmall_to_vec_inplace 3304
gchar_get_m0 3318
pari_err_TYPE2 3493
get_FpXQX_degree 3589
vecsmall_min 3710
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
matpascal 4683
rnf_get_zk 4830
rnf_get_nfvarn 4886
idealchineseinit 5427
pari_stack_pushp 5842
FqX_get_red 6090
gal_get_p 6118
gval 6230
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 8372
vectrunc_append_batch 9667
prec2ndec 9778
cgetalloc 10157
ZX_equal1 10488
gchar_get_Ui 10983
vec_shorten 11556
R_abs_shallow 13097
gchar_get_nfprec 13468
closure_get_dbg 13660
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 22654
FqXQ_mul 22766
nf_get_Tr 23349
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 27874
absfrac_shallow 28237
gequalgs 29176
zerovec_block 29654
gener_Fq_local 29946
gchar_get_basis 32816
gal_get_roots 32844
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33583
Qtoss 35364
gal_get_pol 36428
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37150
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 38084
FqX_div 38569
FqX_deriv 40061
mkcols 40411
bid_get_arch 41187
ndec2nlong 41584
znstar_get_Ui 46788
FqX_degfact 47786
pari_calloc 48043
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 62596
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68158
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 80414
mkcol3 88314
cyclic_perm 99932
gtou 100703
mkcol4 103467
zv_to_zx 104146
mkmoo 108899
zeromat 108947
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114532
Q_abs_shallow 120237
mkmatcopy 122318
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138817
zeroser 138992
FqX_factor 140960
RgV_is_QV 141993
get_FpXQX_mod 146583
FlxqX_div_pre 165409
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200668
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220739
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234161
zero_Flm_copy 238328
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 277485
gchar_get_zm 281911
bnf_get_tuN 283003
bnf_get_fu_nocheck 289092
bnf_get_tuU 303582
nf_get_G 304793
vec_prepend 313919
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337206
upr_norm 346136
RgX_renormalize 349807
FqX_mul 368263
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385003
RgX_is_QX 399933
ZM_hnfrem 401389
abgrp_get_no 406734
perm_conj 418299
FqX_Fq_mul 427293
FqX_extgcd 445777
nf_get_disc 463581
precdbl 476396
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
Z_issquare 509458
nf_get_sign 519600
mkvec3s 524441
addmuliu 541626
ellff_get_a4a6 551466
gdivsg 561178
zv_to_ZV 569244
FqX_Fp_mul 573011
vecsmall_to_vec 578043
prec2nbits_mul 581095
vecsmall_ei 585119
ZM_ZV_mod 610738
RgC_fpnorml2 619941
powIs 620095
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755013
gcmpgs 761925
row 763894
rnf_get_nf 786086
zero_F2m_copy 845294
FpXX_renormalize 849322
zeropadic 856720
affgr 899608
gmin_shallow 899735
ellinf 913939
ZXQ_sqr 960607
cgetc 975459
Flx_lead 1068696
polx_F2x 1079101
pr_norm 1090533
Flx_constant 1091445
Fp_invsafe 1097237
sstoQ 1097313
Flx_mulu 1105335
vecsmall_max 1177545
mkfracss 1209563
RgV_isscalar 1210267
gen_I 1268862
RgX_is_monomial 1326863
mkoo 1332101
bnf_get_sunits 1367771
rnf_get_absdegree 1392746
bnr_get_nf 1399079
constant_coeff 1442659
Rg_col_ei 1451075
inf_get_sign 1453222
vecsmall_concat 1464638
nf_get_varn 1503755
guncloneNULL_deep 1504708
bid_get_mod 1521922
F2m_flip 1554417
F2v_flip 1554417
F2x_flip 1554417
F2x_div 1571296
uutoQ 1602144
nf_get_roots 1628840
bnf_get_gen 1680323
zv_copy 1687893
vec_ei 1714751
mkvecsmall5 1718720
gsubgs 1731926
nf_get_roundG 1748481
abgrp_get_gen 1765036
ellff_get_field 1790620
modpr_get_p 1887627
get_F2x_degree 1928628
killblock 1955130
Flx_div 1999808
ellnf_get_nf 2027222
bnr_get_bid 2046092
Flv_copy 2059160
ulogint 2095054
ell_get_j 2126269
bid_get_MOD 2157253
bid_get_sprk 2157976
ZXQ_mul 2166185
get_F2x_var 2168756
bid_get_fact2 2201571
gc_slice 2211602
pol_xn 2253491
pari_realloc_ip 2342991
bid_get_archp 2397089
bid_get_fact 2498913
rnf_get_degree 2506335
bnr_get_cyc 2522543
ell_get_b4 2550293
mul_content 2657436
cyc_get_expo 2757523
hash_str 2779149
sqrtnr 2810650
bnr_get_clgp 2830219
zero_Flm 2830863
rnf_get_pol 2845192
vecslicepermute 2857337
znstar_get_pe 2869063
F2x_equal1 2873799
bnf_get_logfu 2874762
RgX_coeff 2889731
gisdouble 2995528
mkpolmod 3075534
Fq_red 3106181
bit_accuracy_mul 3175715
ZV_to_zv 3211715
identity_perm 3243158
F3m_coeff 3255604
zero_Flx 3255863
identity_zv 3267521
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307707
get_FpX_mod 3387870
vec_append 3469026
zero_F2v 3656704
bid_get_U 3680229
bnf_get_cyc 3686617
bnr_get_bnf 3710940
nf_get_index 3712002
perm_inv 3747358
pol_1 3752529
ell_get_b6 3863192
pol_x 3865076
mulsubii 3893196
vec_to_vecsmall 4040793
vecsmall_append 4114708
F2x_equal 4190174
sqrfrac 4201749
mkcol2s 4416244
FpXQX_renormalize 4691856
pol1_F2x 4769123
mkmat 4780801
qfb_disc3 4995283
mkfraccopy 5006814
is_rational_t 5017725
bnf_get_clgp 5375483
nf_get_zkprimpart 5416345
nf_get_zkden 5462105
FpX_div 5582133
bid_get_cyc 5739783
bid_get_grp 5804630
pari_stack_delete 5860261
col_ei 5925258
isintm1 6086883
pari_stack_init 6332185
Flm_copy 6434470
sqrti 6612718
get_FpX_var 6952323
get_FpX_degree 6969185
RgX_div 6998185
vecsmall_lexcmp 7043256
ZM_lll 7136350
RgX_gtofp 7164768
ZX_is_monic 7319818
znstar_get_faN 7334819
vecsmall_copy 7341132
ell_get_b2 7371405
zc_to_ZC 7910072
vecsmall_to_col 7924629
znstar_get_conreycyc 7982108
mkintmod 8066799
Q_abs 8078354
checkell_i 8103899
ZV_ZV_mod 8147154
Flx_equal1 8195967
RgM_gtofp 8257771
F2m_coeff 8359371
Flm_row 8743779
cxtofp 9092790
veclast 9374250
ismpzero 9712891
is_intreal_t 9712976
const_col 9730096
nf_get_invzk 9774620
bnf_get_nf 9866317
RgM_dimensions 9954852
mkvec4 10150227
ell_get_a4 10325146
ell_get_a6 10371106
mkcol 10654099
ZC_hnfrem 10697346
mul_denom 10753247
ell_get_c4 11018703
ell_get_a2 11108728
Fp_addmul 11268588
ser_isexactzero 11434254
gc_INT_affii 11572169
vectrunc_init 11768538
pr_get_gen 12072573
abgrp_get_cyc 12231170
F2x_clear 12362258
F2v_clear 12362264
nbits2nlong 12752674
ell_get_a3 12863766
zeropol 12889510
ell_get_c6 13474297
gmax_shallow 13510226
modpr_get_T 13867028
zeromatcopy 14378493
closure_get_frame 14678020
rowpermute 14758318
ell_get_type 14945804
Fp_div 15035785
Fp_divu 15130338
mkvec5 15187643
vectrunc_append 15856835
pr_get_e 16167417
ell_get_disc 16815403
matslice 16824632
ell_get_a1 17049199
pr_is_inert 17224215
pol0_F2x 17360404
normalize_frac 17568614
isint1 17994605
Fp_center_i 18025205
cxcompotor 18237259
qfb_disc 18502496
mkvecsmall4 18661379
const_vecsmall 18860764
Fp_double 20878605
vecpermute 21107183
Flx_div_pre 21704139
nf_get_M 21741274
RgM_shallowcopy 22226562
RgX_is_ZX 22316264
Fp_inv 23412842
nf_get_r1 23466151
ZV_isscalar 23675091
gmulgs 23818709
get_Flx_mod 25494610
pr_get_f 26444679
RgX_equal_var 26880489
pol_0 27168548
shallowcopy 27896510
mkqfb 27928638
zerovec 29348393
modpr_get_pr 31236402
hash_str_len 31617971
submulii 31985063
RgV_is_ZV 32096671
Fp_neg 32671597
mkmat2 33656124
RgC_gtofp 34033098
const_vec 34628269
polx_Flx 37492942
lincombii 38259940
znstar_get_N 38658713
zero_zv 39510264
mkfrac 42554287
powii 43130053
is_vec_t 44036571
closure_is_variadic 45927719
absfrac 47729512
pr_get_tau 49773497
guncloneNULL 49822182
ell_is_inf 50163601
mkmat22 50257977
QV_isscalar 54419136
pol1_Flx 55717933
addmuliu_inplace 59629086
submuliu_inplace 60137307
is_real_t 61900623
zero_Flv 61990420
Fp_sqr 64086646
qfb_is_qfi 64515504
F2x_copy 64618079
Fp_mulu 65439523
gtodouble 66249423
get_Flx_var 68236076
mkvec 68930620
nf_get_degree 71374999
Fp_center 77245263
vecsmallpermute 78755859
rowslice 79450448
perm_mul 80952248
get_Flx_degree 82125999
Fp_red 82928872
gtos 85866141
sqrtr 87172398
is_noncalc_t 88515476
mkcomplex 92014307
pr_get_p 92760989
cxnorm 94249841
dbllog2r 94339614
nf_get_pol 98117934
vecsmalltrunc_append 100803663
gc_all 102447509
RgX_copy 102503663
mkvecsmall3 103251470
F2v_set 104115429
cgiv 105480794
prec2nbits 106956032
vecsmall_prefixcmp 108088071
pol0_Flx 111642575
mkvec3 119581139
both_odd 123181077
gaddgs 123271969
zerocol 125177775
F2x_renormalize 127794809
nchar2nlong 127829745
F2x_set 129962295
equalim1 139546855
mkvecsmall 140335250
bit_prec 143387345
FpX_renormalize 147163312
mkcol2 157026474
ZX_renormalize 157559318
nbrows 158333808
leading_coeff 169343572
Flx_copy 175763195
Fp_add 183402037
nbits2prec 188998974
Fp_sub 202021909
Fp_mul 203650964
mkvec2 212451304
vecsmalltrunc_init 238173388
gc_GEN 246976715
mkvecsmall2 256936482
gtofp 257194383
gmulgu 283360013
closure_get_data 306050127
closure_get_oper 306074065
closure_codestr 306097584
is_universal_constant 326378829
lgcols 352751156
closure_arity 356513611
is_scalar_t 403951384
lg_increase 429370595
bin_copy 472927731
pari_free 487278006
is_bigint 574354887
leafcopy_avma 592014319
vecslice 657373537
F2v_coeff 664439798
F2x_coeff 671043085
pari_malloc 723386875
is_matvec_t 743856417
pari_stack_new 910470030
GENbinbase 919088358
pari_stack_alloc 1005779323
pari_stack_base 1011637992
gc_leaf 1160595221
equali1 1171350741
nbits2extraprec 1497512382
gc_upto 1972576780
odd 2124885502
is_pm1 2217568387
lgpol 2620754775
isintzero 2848759488
bit_accuracy 3145718537
gc_INT 4138397175
prec2lg 4566453729
is_const_t 5002522355
degpol 5505327608
icopy_avma 8055546867
remsBIL 8148578277
divsBIL 8239231757
isonstack 8360906689
is_recursive_t 9110975599

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