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: 2026-04-21 09:26:02 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 22655
FqXQ_mul 22766
nf_get_Tr 23346
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 33577
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 38066
FqX_div 38566
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
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 58513
RgX_fpnorml2 61608
err_get_num 62595
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68157
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 75753
bnr_get_mod 77119
gal_get_group 80416
mkcol3 88314
cyclic_perm 99932
gtou 100708
mkcol4 103467
zv_to_zx 104146
mkmoo 108897
zeromat 109016
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114528
Q_abs_shallow 120213
mkmatcopy 122322
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138807
zeroser 138992
FqX_factor 140960
RgV_is_QV 142000
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 200667
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220741
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234336
zero_Flm_copy 238313
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249619
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264435
bnr_get_no 277490
gchar_get_zm 281911
bnf_get_tuN 282991
bnf_get_fu_nocheck 289082
bnf_get_tuU 303572
nf_get_G 304874
vec_prepend 313925
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337204
upr_norm 346136
RgX_renormalize 349807
FqX_mul 368263
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385001
RgX_is_QX 399943
ZM_hnfrem 401401
abgrp_get_no 406738
perm_conj 418299
FqX_Fq_mul 427283
FqX_extgcd 445776
nf_get_disc 463589
precdbl 476396
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
Z_issquare 509457
nf_get_sign 519602
mkvec3s 524441
addmuliu 541617
ellff_get_a4a6 551471
gdivsg 561181
zv_to_ZV 569244
FqX_Fp_mul 573027
vecsmall_to_vec 578043
prec2nbits_mul 581094
vecsmall_ei 585109
ZM_ZV_mod 610696
RgC_fpnorml2 619946
powIs 620095
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698438
coltrunc_init 740257
logint 755014
gcmpgs 761917
row 763895
rnf_get_nf 786086
zero_F2m_copy 845273
FpXX_renormalize 849322
zeropadic 857745
affgr 899608
gmin_shallow 899756
ellinf 913936
ZXQ_sqr 960607
cgetc 975457
Flx_lead 1068912
polx_F2x 1078955
pr_norm 1090611
Flx_constant 1091691
Fp_invsafe 1097248
sstoQ 1097313
Flx_mulu 1105455
vecsmall_max 1177560
mkfracss 1209563
RgV_isscalar 1210266
gen_I 1268851
RgX_is_monomial 1326774
mkoo 1332030
bnf_get_sunits 1367775
rnf_get_absdegree 1392746
bnr_get_nf 1399067
constant_coeff 1442679
Rg_col_ei 1451112
inf_get_sign 1453152
vecsmall_concat 1464643
guncloneNULL_deep 1502313
nf_get_varn 1503736
bid_get_mod 1521920
F2m_flip 1554246
F2v_flip 1554246
F2x_flip 1554246
F2x_div 1571075
uutoQ 1602144
nf_get_roots 1628906
bnf_get_gen 1680306
zv_copy 1687852
vec_ei 1714702
mkvecsmall5 1718763
gsubgs 1731918
nf_get_roundG 1748549
abgrp_get_gen 1765019
ellff_get_field 1790629
modpr_get_p 1887627
get_F2x_degree 1928597
killblock 1953702
Flx_div 1999751
ellnf_get_nf 2027260
bnr_get_bid 2046095
Flv_copy 2059117
ulogint 2079171
ell_get_j 2126269
bid_get_MOD 2157260
bid_get_sprk 2157981
ZXQ_mul 2166226
get_F2x_var 2168760
bid_get_fact2 2201580
gc_slice 2211601
pol_xn 2253543
pari_realloc_ip 2343334
bid_get_archp 2397092
bid_get_fact 2498887
rnf_get_degree 2506335
bnr_get_cyc 2522552
ell_get_b4 2550293
mul_content 2657436
cyc_get_expo 2757517
hash_str 2779149
sqrtnr 2810696
bnr_get_clgp 2830216
zero_Flm 2830745
rnf_get_pol 2845192
vecslicepermute 2857407
znstar_get_pe 2869063
F2x_equal1 2873647
bnf_get_logfu 2874763
RgX_coeff 2889731
gisdouble 2995635
mkpolmod 3075533
Fq_red 3106349
bit_accuracy_mul 3175715
ZV_to_zv 3211712
identity_perm 3243003
F3m_coeff 3255552
zero_Flx 3255662
identity_zv 3267366
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307636
get_FpX_mod 3387867
vec_append 3468964
zero_F2v 3656644
bid_get_U 3680234
bnf_get_cyc 3686593
bnr_get_bnf 3710946
nf_get_index 3712027
perm_inv 3747266
pol_1 3752594
ell_get_b6 3863192
pol_x 3865086
mulsubii 3894099
vec_to_vecsmall 4040775
vecsmall_append 4114711
F2x_equal 4190977
sqrfrac 4201636
mkcol2s 4416244
FpXQX_renormalize 4691773
pol1_F2x 4769009
mkmat 4780818
qfb_disc3 4995430
mkfraccopy 5006877
is_rational_t 5017715
bnf_get_clgp 5375443
nf_get_zkprimpart 5416230
nf_get_zkden 5462035
FpX_div 5582194
bid_get_cyc 5739797
bid_get_grp 5804652
pari_stack_delete 5847709
col_ei 5925280
isintm1 6086903
pari_stack_init 6332222
Flm_copy 6434517
sqrti 6612674
get_FpX_var 6952374
get_FpX_degree 6969239
RgX_div 6998184
vecsmall_lexcmp 7043257
ZM_lll 7136367
RgX_gtofp 7164750
ZX_is_monic 7319838
znstar_get_faN 7334819
vecsmall_copy 7341068
ell_get_b2 7371408
zc_to_ZC 7910178
vecsmall_to_col 7924723
znstar_get_conreycyc 7982108
mkintmod 8066856
Q_abs 8078363
checkell_i 8103907
ZV_ZV_mod 8147191
Flx_equal1 8195837
RgM_gtofp 8257655
F2m_coeff 8358930
Flm_row 8743600
cxtofp 9093362
veclast 9374234
ismpzero 9712881
is_intreal_t 9712987
const_col 9730082
nf_get_invzk 9774615
bnf_get_nf 9866290
RgM_dimensions 9954900
mkvec4 10150227
ell_get_a4 10325145
ell_get_a6 10371105
mkcol 10654141
ZC_hnfrem 10697367
mul_denom 10753322
ell_get_c4 11018547
ell_get_a2 11108727
Fp_addmul 11308911
ser_isexactzero 11434254
gc_INT_affii 11570441
vectrunc_init 11770128
pr_get_gen 12072562
abgrp_get_cyc 12231145
F2x_clear 12361713
F2v_clear 12361714
nbits2nlong 12751793
ell_get_a3 12863769
zeropol 12889620
ell_get_c6 13474167
gmax_shallow 13510227
modpr_get_T 13867111
zeromatcopy 14378533
closure_get_frame 14677707
rowpermute 14758242
ell_get_type 14945823
Fp_div 15034673
Fp_divu 15129185
mkvec5 15187598
vectrunc_append 15859073
pr_get_e 16167550
ell_get_disc 16815423
matslice 16824357
ell_get_a1 17049202
pr_is_inert 17224414
pol0_F2x 17360090
normalize_frac 17568678
isint1 17994612
Fp_center_i 18028454
cxcompotor 18238324
qfb_disc 18502508
mkvecsmall4 18654149
const_vecsmall 18860903
Fp_double 20976803
vecpermute 21107433
Flx_div_pre 21702726
nf_get_M 21742432
RgM_shallowcopy 22226760
RgX_is_ZX 22316449
Fp_inv 23412926
nf_get_r1 23467191
ZV_isscalar 23676089
gmulgs 23799904
get_Flx_mod 25493353
pr_get_f 26444634
RgX_equal_var 26880495
pol_0 27168704
shallowcopy 27897008
mkqfb 27928943
zerovec 29348362
modpr_get_pr 31236562
hash_str_len 31617868
submulii 31985063
RgV_is_ZV 32096666
Fp_neg 32671010
mkmat2 33655959
RgC_gtofp 34031050
const_vec 34625994
polx_Flx 37497535
lincombii 38265571
znstar_get_N 38658713
zero_zv 39509164
mkfrac 42552357
powii 43130192
is_vec_t 44033414
closure_is_variadic 45927123
absfrac 47729470
pr_get_tau 49773555
guncloneNULL 49819672
ell_is_inf 50211171
mkmat22 50257007
QV_isscalar 54419541
pol1_Flx 55712010
addmuliu_inplace 59617057
submuliu_inplace 60123585
is_real_t 61900628
zero_Flv 61988847
Fp_sqr 64334250
qfb_is_qfi 64525089
F2x_copy 64614421
gtodouble 66252321
get_Flx_var 68231797
Fp_mulu 68514620
mkvec 68923353
nf_get_degree 71376272
Fp_center 77248888
vecsmallpermute 78752420
rowslice 79443905
perm_mul 80948925
Fp_red 82929111
get_Flx_degree 83621633
gtos 85866172
sqrtr 87171286
is_noncalc_t 88515520
mkcomplex 92015398
pr_get_p 92761414
cxnorm 94251516
dbllog2r 94338152
nf_get_pol 98119376
vecsmalltrunc_append 100741935
gc_all 102447221
RgX_copy 102503776
mkvecsmall3 103252683
F2v_set 104114943
cgiv 105480703
prec2nbits 106953701
vecsmall_prefixcmp 108088071
pol0_Flx 111637621
gaddgs 123272012
both_odd 123299504
mkvec3 124091249
zerocol 125174672
F2x_renormalize 127796888
nchar2nlong 127827113
F2x_set 129956290
equalim1 139546860
mkvecsmall 140331605
bit_prec 143378469
FpX_renormalize 147161891
mkcol2 157030510
ZX_renormalize 157549560
nbrows 158332271
leading_coeff 169343944
Flx_copy 175760688
Fp_add 183552144
nbits2prec 188992940
Fp_sub 202210848
Fp_mul 203724153
mkvec2 212620079
vecsmalltrunc_init 238504023
gc_GEN 247004913
mkvecsmall2 256919715
gtofp 257163110
gmulgu 283360013
closure_get_data 306019035
closure_get_oper 306039025
closure_codestr 306059572
is_universal_constant 326416705
lgcols 352747554
closure_arity 356487142
is_scalar_t 403951170
lg_increase 430914623
bin_copy 472926493
pari_free 487270320
is_bigint 574341131
leafcopy_avma 591964558
vecslice 657319293
F2v_coeff 664437208
F2x_coeff 671030514
pari_malloc 723387108
is_matvec_t 743832107
pari_stack_new 910412828
GENbinbase 919085164
pari_stack_alloc 1005727831
pari_stack_base 1011573101
gc_leaf 1166673741
equali1 1171355946
nbits2extraprec 1497365792
gc_upto 1972524538
odd 2123100828
is_pm1 2219133893
lgpol 2629642464
isintzero 2848444373
bit_accuracy 3145723276
gc_INT 4137980635
prec2lg 4565709496
is_const_t 5002390765
degpol 5525007477
icopy_avma 8055469096
remsBIL 8148101607
divsBIL 8238781046
isonstack 8366374439
is_recursive_t 9110852516

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