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 30813-28f64e5615) Lines: 1421 1535 92.6 %
Date: 2026-04-14 09:26:12 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 11554
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 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 27866
gal_get_invvdm 27873
absfrac_shallow 28237
gequalgs 29176
zerovec_block 29654
gener_Fq_local 29945
gchar_get_basis 32816
gal_get_roots 32843
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33577
Qtoss 35364
gal_get_pol 36427
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37150
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 38096
FqX_div 38568
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
FqX_degfact 47786
pari_calloc 47994
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58510
RgX_fpnorml2 61608
err_get_num 62596
bid_get_gen 64274
nf_get_ramified_primes 64643
RgX_is_rational 68155
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 75751
bnr_get_mod 77119
gal_get_group 80415
mkcol3 88314
cyclic_perm 99932
gtou 100717
mkcol4 103467
zv_to_zx 104146
mkmoo 108899
zeromat 108967
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114531
Q_abs_shallow 120233
mkmatcopy 122340
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138810
zeroser 138992
FqX_factor 140960
RgV_is_QV 141998
get_FpXQX_mod 146583
FlxqX_div_pre 165411
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200657
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220729
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234314
zero_Flm_copy 238320
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249621
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264435
bnr_get_no 277487
gchar_get_zm 281911
bnf_get_tuN 282993
bnf_get_fu_nocheck 289077
bnf_get_tuU 303576
nf_get_G 304868
vec_prepend 313899
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337207
upr_norm 346136
RgX_renormalize 349807
FqX_mul 368264
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384995
RgX_is_QX 399947
ZM_hnfrem 401379
abgrp_get_no 406729
perm_conj 418299
FqX_Fq_mul 427280
FqX_extgcd 445774
nf_get_disc 463580
precdbl 476360
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
Z_issquare 509453
nf_get_sign 519600
mkvec3s 524441
addmuliu 541554
ellff_get_a4a6 551458
gdivsg 559710
zv_to_ZV 569244
FqX_Fp_mul 573027
vecsmall_to_vec 578043
prec2nbits_mul 581097
vecsmall_ei 585131
powIs 596435
ZM_ZV_mod 610711
RgC_fpnorml2 619945
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755008
gcmpgs 761925
row 763895
rnf_get_nf 786086
zero_F2m_copy 845269
FpXX_renormalize 849322
zeropadic 857142
gmin_shallow 898172
affgr 899594
ellinf 913924
ZXQ_sqr 960614
cgetc 975460
Flx_lead 1068925
polx_F2x 1079616
pr_norm 1090638
Flx_constant 1091655
Fp_invsafe 1097237
sstoQ 1097313
Flx_mulu 1105421
vecsmall_max 1177583
mkfracss 1209563
RgV_isscalar 1210270
gen_I 1268853
RgX_is_monomial 1326752
mkoo 1332074
bnf_get_sunits 1367768
rnf_get_absdegree 1392746
bnr_get_nf 1399060
constant_coeff 1442672
Rg_col_ei 1451205
inf_get_sign 1453197
vecsmall_concat 1464664
guncloneNULL_deep 1501960
nf_get_varn 1503728
bid_get_mod 1521922
F2m_flip 1554512
F2v_flip 1554512
F2x_flip 1554512
F2x_div 1572656
uutoQ 1602144
nf_get_roots 1628916
bnf_get_gen 1680312
zv_copy 1687870
vec_ei 1714700
mkvecsmall5 1718720
gsubgs 1731940
nf_get_roundG 1748549
abgrp_get_gen 1765025
ellff_get_field 1790596
modpr_get_p 1887626
get_F2x_degree 1928528
killblock 1954207
Flx_div 1999765
ellnf_get_nf 2027219
bnr_get_bid 2046092
Flv_copy 2059124
ulogint 2088965
ell_get_j 2126269
bid_get_MOD 2157258
bid_get_sprk 2157975
ZXQ_mul 2166287
get_F2x_var 2168627
bid_get_fact2 2201576
gc_slice 2211140
pol_xn 2253513
pari_realloc_ip 2343444
bid_get_archp 2397084
bid_get_fact 2498902
rnf_get_degree 2506335
bnr_get_cyc 2522567
ell_get_b4 2550293
mul_content 2657344
cyc_get_expo 2757540
hash_str 2779150
sqrtnr 2810787
bnr_get_clgp 2830246
zero_Flm 2831081
rnf_get_pol 2845192
vecslicepermute 2858043
znstar_get_pe 2869063
F2x_equal1 2873675
bnf_get_logfu 2874751
RgX_coeff 2889731
gisdouble 2996331
mkpolmod 3075583
Fq_red 3106454
bit_accuracy_mul 3175715
ZV_to_zv 3211716
identity_perm 3243358
F3m_coeff 3255658
zero_Flx 3255811
identity_zv 3267720
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307622
get_FpX_mod 3387845
vec_append 3469010
zero_F2v 3656621
bid_get_U 3680235
bnf_get_cyc 3686602
bnr_get_bnf 3710939
nf_get_index 3712013
perm_inv 3747455
pol_1 3752536
ell_get_b6 3863192
pol_x 3865049
mulsubii 3892391
vec_to_vecsmall 4040779
vecsmall_append 4114728
F2x_equal 4193564
sqrfrac 4201751
mkcol2s 4416244
FpXQX_renormalize 4691955
pol1_F2x 4768088
mkmat 4780485
qfb_disc3 4995395
mkfraccopy 5006755
is_rational_t 5017710
bnf_get_clgp 5375454
nf_get_zkprimpart 5416311
nf_get_zkden 5462174
FpX_div 5582142
bid_get_cyc 5739781
bid_get_grp 5804633
pari_stack_delete 5857930
col_ei 5925291
isintm1 6086644
pari_stack_init 6332058
Flm_copy 6434459
sqrti 6612672
get_FpX_var 6952202
get_FpX_degree 6969198
RgX_div 6998185
vecsmall_lexcmp 7043259
ZM_lll 7117997
RgX_gtofp 7163890
ZX_is_monic 7319914
znstar_get_faN 7334819
vecsmall_copy 7341054
ell_get_b2 7371401
zc_to_ZC 7910254
vecsmall_to_col 7924800
znstar_get_conreycyc 7982108
mkintmod 8066780
Q_abs 8078461
checkell_i 8103981
ZV_ZV_mod 8147153
Flx_equal1 8195936
RgM_gtofp 8258055
F2m_coeff 8359565
Flm_row 8743582
cxtofp 9093531
veclast 9374217
ismpzero 9702648
is_intreal_t 9702746
const_col 9730107
nf_get_invzk 9774572
bnf_get_nf 9866284
RgM_dimensions 9954325
mkvec4 10150156
ell_get_a4 10325138
ell_get_a6 10371098
mkcol 10654061
ZC_hnfrem 10697397
mul_denom 10753473
ell_get_c4 11018421
ell_get_a2 11108720
Fp_addmul 11289617
ser_isexactzero 11434254
gc_INT_affii 11572381
vectrunc_init 11769996
pr_get_gen 12072507
abgrp_get_cyc 12231188
F2x_clear 12362102
F2v_clear 12362103
nbits2nlong 12749097
ell_get_a3 12863754
zeropol 12889575
ell_get_c6 13474076
gmax_shallow 13510228
modpr_get_T 13867084
zeromatcopy 14378996
closure_get_frame 14678301
rowpermute 14758822
ell_get_type 14946021
Fp_div 15035105
Fp_divu 15129570
mkvec5 15187610
vectrunc_append 15857382
pr_get_e 16167199
ell_get_disc 16815400
matslice 16825140
ell_get_a1 17049188
pr_is_inert 17224223
pol0_F2x 17360368
normalize_frac 17568715
isint1 17994355
Fp_center_i 18020714
cxcompotor 18238805
qfb_disc 18502489
mkvecsmall4 18654874
const_vecsmall 18861043
Fp_double 20928133
vecpermute 21107151
Flx_div_pre 21703388
nf_get_M 21741915
RgM_shallowcopy 22226868
RgX_is_ZX 22316324
Fp_inv 23412920
nf_get_r1 23466709
ZV_isscalar 23675734
gmulgs 23856846
get_Flx_mod 25495809
pr_get_f 26444482
RgX_equal_var 26880499
pol_0 27168558
shallowcopy 27896210
mkqfb 27928886
zerovec 29348182
modpr_get_pr 31236532
hash_str_len 31616933
submulii 31985063
RgV_is_ZV 32096670
Fp_neg 32668241
mkmat2 33655667
RgC_gtofp 34035210
const_vec 34629039
polx_Flx 37496904
lincombii 38270717
znstar_get_N 38658713
zero_zv 39509927
mkfrac 42556834
powii 43130110
is_vec_t 44042850
closure_is_variadic 45927759
absfrac 47729661
pr_get_tau 49773361
guncloneNULL 49821581
ell_is_inf 50237627
mkmat22 50257963
QV_isscalar 54419644
pol1_Flx 55719541
addmuliu_inplace 59559964
submuliu_inplace 60068080
is_real_t 61900633
zero_Flv 61988454
Fp_sqr 64182792
qfb_is_qfi 64500382
F2x_copy 64627139
Fp_mulu 65497796
gtodouble 66245573
get_Flx_var 68238576
mkvec 68957258
nf_get_degree 71376286
Fp_center 77225568
vecsmallpermute 78755381
rowslice 79448721
perm_mul 80951903
get_Flx_degree 82138075
Fp_red 82927083
gtos 85866179
sqrtr 86935805
is_noncalc_t 88515809
mkcomplex 92005511
pr_get_p 92760853
cxnorm 94100659
dbllog2r 94332251
nf_get_pol 98119277
vecsmalltrunc_append 100888826
gc_all 102447149
RgX_copy 102503771
mkvecsmall3 103255956
F2v_set 104115437
cgiv 105483259
prec2nbits 106944177
vecsmall_prefixcmp 108088071
pol0_Flx 111641843
mkvec3 119619374
both_odd 123233309
gaddgs 123270502
zerocol 125181668
F2x_renormalize 127789562
nchar2nlong 127832045
F2x_set 129936851
equalim1 139546745
mkvecsmall 140334496
bit_prec 143390493
FpX_renormalize 147165070
mkcol2 157027155
ZX_renormalize 157547886
nbrows 158342528
leading_coeff 169342063
Flx_copy 175774684
Fp_add 183460490
nbits2prec 188999804
Fp_sub 202124760
Fp_mul 203683727
mkvec2 215087828
vecsmalltrunc_init 243509092
gc_GEN 246994496
mkvecsmall2 256954716
gtofp 257180710
gmulgu 283360013
closure_get_data 306067701
closure_get_oper 306094304
closure_codestr 306114976
is_universal_constant 326529825
lgcols 352760815
closure_arity 356532780
is_scalar_t 403949744
lg_increase 448090936
bin_copy 472930186
pari_free 487280089
is_bigint 574351513
leafcopy_avma 593532632
vecslice 657324038
F2v_coeff 664439938
F2x_coeff 670975800
pari_malloc 723374562
is_matvec_t 743868096
pari_stack_new 910397027
GENbinbase 919107538
pari_stack_alloc 1005754143
pari_stack_base 1011572704
gc_leaf 1160444711
equali1 1171330442
nbits2extraprec 1497426856
gc_upto 1972465083
odd 2124143882
is_pm1 2217704421
lgpol 2620860600
isintzero 2848498037
bit_accuracy 3145406630
gc_INT 4137829880
prec2lg 4565213245
is_const_t 5001411832
degpol 5507035625
icopy_avma 8055488106
remsBIL 8147380142
divsBIL 8237945548
isonstack 8359629783
is_recursive_t 9110699131

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