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 30775-9d8a55740a) Lines: 1422 1535 92.6 %
Date: 2026-04-06 09:26:18 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 1880
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 5821
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 10136
ZX_equal1 10488
gchar_get_Ui 10983
vec_shorten 11557
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 23280
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 29945
gchar_get_basis 32816
gal_get_roots 32844
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33589
Qtoss 35364
gal_get_pol 36428
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37150
gchar_get_nc 37261
F2v_to_F2x 37711
FqX_rem 37743
FqX_div 38569
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47700
FqX_degfact 47786
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 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 80412
mkcol3 88314
cyclic_perm 99932
gtou 100708
mkcol4 103467
zv_to_zx 104146
mkmoo 108897
zeromat 108971
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114531
Q_abs_shallow 120232
mkmatcopy 122322
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138812
zeroser 138992
FqX_factor 140960
RgV_is_QV 142001
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 200648
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220726
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 233948
zero_Flm_copy 238318
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249616
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 283001
bnf_get_fu_nocheck 289097
bnf_get_tuU 303583
nf_get_G 304819
vec_prepend 313930
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337206
upr_norm 346133
RgX_renormalize 349807
FqX_mul 367936
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385000
RgX_is_QX 399945
ZM_hnfrem 401406
abgrp_get_no 406729
perm_conj 418299
FqX_Fq_mul 427293
FqX_extgcd 445020
nf_get_disc 463511
precdbl 476360
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
Z_issquare 509449
nf_get_sign 519600
mkvec3s 524441
addmuliu 541563
ellff_get_a4a6 551453
gdivsg 559710
zv_to_ZV 569244
FqX_Fp_mul 572206
vecsmall_to_vec 578043
prec2nbits_mul 581093
vecsmall_ei 585082
powIs 596435
ZM_ZV_mod 610692
RgC_fpnorml2 619940
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755020
gcmpgs 761925
row 763882
rnf_get_nf 786086
zero_F2m_copy 845228
FpXX_renormalize 849322
zeropadic 857672
gmin_shallow 898159
affgr 899594
ellinf 913921
ZXQ_sqr 960608
cgetc 975459
Flx_lead 1068770
polx_F2x 1073606
pr_norm 1090566
Flx_constant 1091351
Fp_invsafe 1097233
sstoQ 1097313
Flx_mulu 1105488
vecsmall_max 1177379
mkfracss 1209563
RgV_isscalar 1210265
gen_I 1268870
RgX_is_monomial 1319945
mkoo 1331958
bnf_get_sunits 1367775
rnf_get_absdegree 1392746
bnr_get_nf 1399081
constant_coeff 1441265
Rg_col_ei 1451129
inf_get_sign 1453095
vecsmall_concat 1464598
nf_get_varn 1503730
guncloneNULL_deep 1508077
bid_get_mod 1521921
F2m_flip 1553148
F2v_flip 1553148
F2x_flip 1553148
F2x_div 1557036
uutoQ 1602144
nf_get_roots 1628839
bnf_get_gen 1680310
zv_copy 1687900
vec_ei 1714724
mkvecsmall5 1718696
gsubgs 1731925
nf_get_roundG 1748494
abgrp_get_gen 1765022
ellff_get_field 1790594
modpr_get_p 1887624
get_F2x_degree 1928433
killblock 1957308
Flx_div 1999751
ellnf_get_nf 2027227
bnr_get_bid 2046091
Flv_copy 2059138
ulogint 2093090
ell_get_j 2126269
bid_get_MOD 2157248
bid_get_sprk 2157971
ZXQ_mul 2166242
get_F2x_var 2168565
bid_get_fact2 2201568
gc_slice 2210997
pol_xn 2252860
pari_realloc_ip 2358848
bid_get_archp 2397067
bid_get_fact 2498906
rnf_get_degree 2506335
bnr_get_cyc 2522551
ell_get_b4 2550293
mul_content 2657374
cyc_get_expo 2757529
hash_str 2759564
sqrtnr 2810727
bnr_get_clgp 2830214
zero_Flm 2831213
rnf_get_pol 2845192
vecslicepermute 2856966
znstar_get_pe 2869063
F2x_equal1 2873612
bnf_get_logfu 2874746
RgX_coeff 2889731
gisdouble 2996276
mkpolmod 3075562
Fq_red 3106192
bit_accuracy_mul 3175715
ZV_to_zv 3211716
identity_perm 3243457
F3m_coeff 3255657
zero_Flx 3255892
identity_zv 3267820
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307596
get_FpX_mod 3387855
vec_append 3468965
zero_F2v 3656354
bid_get_U 3680227
bnf_get_cyc 3686600
bnr_get_bnf 3710941
nf_get_index 3712016
perm_inv 3747467
pol_1 3752504
pol_x 3860357
ell_get_b6 3863192
mulsubii 3893597
vec_to_vecsmall 4039402
vecsmall_append 4114668
F2x_equal 4130169
sqrfrac 4150868
mkcol2s 4416244
FpXQX_renormalize 4691890
pol1_F2x 4767918
mkmat 4780013
qfb_disc3 4995333
mkfraccopy 4999537
is_rational_t 5017678
bnf_get_clgp 5375451
nf_get_zkprimpart 5416196
nf_get_zkden 5462034
FpX_div 5581976
bid_get_cyc 5739748
bid_get_grp 5804621
pari_stack_delete 5879237
col_ei 5925299
isintm1 6086457
pari_stack_init 6379020
Flm_copy 6434430
sqrti 6612730
get_FpX_var 6952052
get_FpX_degree 6969263
RgX_div 6997261
vecsmall_lexcmp 7043259
ZM_lll 7117952
RgX_gtofp 7163938
ZX_is_monic 7319870
znstar_get_faN 7334819
vecsmall_copy 7341126
ell_get_b2 7371402
zc_to_ZC 7909651
vecsmall_to_col 7924196
znstar_get_conreycyc 7982108
Q_abs 8060903
mkintmod 8066713
checkell_i 8104010
ZV_ZV_mod 8147104
Flx_equal1 8195981
RgM_gtofp 8258129
F2m_coeff 8355592
Flm_row 8743427
cxtofp 9092277
veclast 9374230
ismpzero 9702652
is_intreal_t 9702756
const_col 9730062
nf_get_invzk 9774667
bnf_get_nf 9866255
RgM_dimensions 9954661
mkvec4 10150160
ell_get_a4 10325139
ell_get_a6 10371099
mkcol 10653377
ZC_hnfrem 10697377
mul_denom 10709738
ell_get_c4 11018447
ell_get_a2 11108721
Fp_addmul 11286222
ser_isexactzero 11434254
gc_INT_affii 11560281
vectrunc_init 11768288
pr_get_gen 12072400
abgrp_get_cyc 12231168
F2x_clear 12359896
F2v_clear 12359910
nbits2nlong 12749159
ell_get_a3 12863756
zeropol 12867495
ell_get_c6 13474130
gmax_shallow 13510227
modpr_get_T 13867087
zeromatcopy 14378162
closure_get_frame 14734916
rowpermute 14758557
ell_get_type 14946054
Fp_div 15034377
Fp_divu 15128849
mkvec5 15187558
vectrunc_append 15855663
pr_get_e 16167445
ell_get_disc 16815206
matslice 16825545
ell_get_a1 17049189
pr_is_inert 17224281
pol0_F2x 17303613
normalize_frac 17311378
isint1 17987090
Fp_center_i 18019397
cxcompotor 18236199
qfb_disc 18502489
mkvecsmall4 18645355
const_vecsmall 18860839
Fp_double 20932084
vecpermute 21105930
Flx_div_pre 21703026
nf_get_M 21745361
RgM_shallowcopy 22235094
RgX_is_ZX 22315431
Fp_inv 23435913
nf_get_r1 23465732
ZV_isscalar 23674849
gmulgs 23875060
get_Flx_mod 25494745
pr_get_f 26444611
RgX_equal_var 26880490
pol_0 27123753
shallowcopy 27895926
mkqfb 27928780
zerovec 29348218
modpr_get_pr 31236492
hash_str_len 31655309
submulii 31985063
RgV_is_ZV 32095979
Fp_neg 32667343
mkmat2 33665561
RgC_gtofp 34036253
const_vec 34669806
polx_Flx 37490569
lincombii 38279762
znstar_get_N 38658713
zero_zv 39493740
mkfrac 41927218
powii 43130064
is_vec_t 43958841
closure_is_variadic 45930571
absfrac 46990950
pr_get_tau 49773642
guncloneNULL 49828150
ell_is_inf 50203559
mkmat22 50254105
QV_isscalar 54419868
pol1_Flx 55713907
addmuliu_inplace 59563031
submuliu_inplace 60066044
is_real_t 61900629
zero_Flv 61971921
F2x_copy 63852342
Fp_sqr 64242963
qfb_is_qfi 64503778
Fp_mulu 65705894
gtodouble 66244724
get_Flx_var 68232336
mkvec 69357257
nf_get_degree 71376272
Fp_center 77269476
vecsmallpermute 78756162
rowslice 79449743
perm_mul 80952364
get_Flx_degree 82243811
Fp_red 82929098
gtos 85865503
sqrtr 86932172
is_noncalc_t 88516342
mkcomplex 91992033
pr_get_p 92761284
cxnorm 94095895
dbllog2r 94326987
nf_get_pol 98119329
vecsmalltrunc_append 100904797
RgX_copy 102486912
gc_all 102550710
mkvecsmall3 103244476
F2v_set 104112113
cgiv 105458524
prec2nbits 106943032
vecsmall_prefixcmp 108088071
pol0_Flx 111571383
mkvec3 119982352
gaddgs 123270531
both_odd 123752791
zerocol 125154662
F2x_renormalize 126805571
nchar2nlong 127923553
F2x_set 129707353
equalim1 139567765
mkvecsmall 140210629
bit_prec 143393826
FpX_renormalize 147016629
mkcol2 156958024
ZX_renormalize 157451580
nbrows 158274577
leading_coeff 169331074
Flx_copy 175737967
Fp_add 183484911
nbits2prec 189001399
Fp_sub 202114110
Fp_mul 203158503
mkvec2 215387812
vecsmalltrunc_init 244376448
gc_GEN 246738127
mkvecsmall2 256931404
gtofp 257199785
gmulgu 283360013
closure_get_data 305958598
closure_get_oper 305981756
closure_codestr 306001064
is_universal_constant 326535614
lgcols 352679014
closure_arity 356429628
is_scalar_t 403468137
lg_increase 448766967
bin_copy 472867963
pari_free 487229194
is_bigint 574335181
leafcopy_avma 593717677
vecslice 657260035
F2v_coeff 664418026
F2x_coeff 670962846
pari_malloc 723314263
is_matvec_t 742835105
pari_stack_new 910988009
GENbinbase 918980964
pari_stack_alloc 1006310221
pari_stack_base 1012133957
gc_leaf 1160518989
equali1 1169265599
nbits2extraprec 1497479079
gc_upto 1971358518
odd 2124217552
is_pm1 2216264031
lgpol 2616052474
isintzero 2848763412
bit_accuracy 3140399905
gc_INT 4134423365
prec2lg 4565552998
is_const_t 5002398959
degpol 5509072909
icopy_avma 8049803650
remsBIL 8143917457
divsBIL 8234276841
isonstack 8355150321
is_recursive_t 9103600813

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