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 30786-ffec283a2b) Lines: 1421 1535 92.6 %
Date: 2026-04-07 09:25:56 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 2897
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 13702
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 29946
gchar_get_basis 32816
gal_get_roots 32844
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33581
Qtoss 35364
gal_get_pol 36428
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37213
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 38020
FqX_div 38569
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47735
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 61606
err_get_num 62638
bid_get_gen 64274
nf_get_ramified_primes 64644
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 75755
bnr_get_mod 77119
gal_get_group 80413
mkcol3 88314
cyclic_perm 99932
gtou 100717
mkcol4 103467
zv_to_zx 104146
mkmoo 108898
zeromat 108979
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114528
Q_abs_shallow 120221
mkmatcopy 122299
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138811
zeroser 138992
FqX_factor 140960
RgV_is_QV 142000
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 200664
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 234456
zero_Flm_copy 238314
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249622
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 282984
bnf_get_fu_nocheck 289074
bnf_get_tuU 303572
nf_get_G 304786
vec_prepend 313925
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337207
upr_norm 346135
RgX_renormalize 349807
FqX_mul 367929
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385000
RgX_is_QX 399946
ZM_hnfrem 401377
abgrp_get_no 406722
perm_conj 418299
FqX_Fq_mul 427289
FqX_extgcd 445017
nf_get_disc 463508
precdbl 476366
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
Z_issquare 509442
nf_get_sign 519600
mkvec3s 524441
addmuliu 541589
ellff_get_a4a6 551450
gdivsg 559711
zv_to_ZV 569244
FqX_Fp_mul 572204
vecsmall_to_vec 578043
prec2nbits_mul 581097
vecsmall_ei 585115
powIs 596435
ZM_ZV_mod 610720
RgC_fpnorml2 619946
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755010
gcmpgs 761910
row 763894
rnf_get_nf 786086
zero_F2m_copy 845281
FpXX_renormalize 849322
zeropadic 857646
gmin_shallow 898172
affgr 899594
ellinf 913901
ZXQ_sqr 960608
cgetc 975460
Flx_lead 1068242
polx_F2x 1078962
pr_norm 1090497
Flx_constant 1091523
Fp_invsafe 1097228
sstoQ 1097313
Flx_mulu 1105395
vecsmall_max 1177399
mkfracss 1209563
RgV_isscalar 1210271
gen_I 1268870
RgX_is_monomial 1320153
mkoo 1332047
bnf_get_sunits 1367778
rnf_get_absdegree 1392746
bnr_get_nf 1399066
constant_coeff 1441233
Rg_col_ei 1451071
inf_get_sign 1453191
vecsmall_concat 1464642
nf_get_varn 1503706
guncloneNULL_deep 1508689
bid_get_mod 1521922
F2m_flip 1554246
F2v_flip 1554246
F2x_flip 1554246
F2x_div 1570969
uutoQ 1602144
nf_get_roots 1628793
bnf_get_gen 1680304
zv_copy 1687870
vec_ei 1714737
mkvecsmall5 1718745
gsubgs 1731932
nf_get_roundG 1748461
abgrp_get_gen 1765015
ellff_get_field 1790584
modpr_get_p 1887627
get_F2x_degree 1928556
killblock 1958212
Flx_div 1999754
ellnf_get_nf 2027231
bnr_get_bid 2046088
Flv_copy 2059105
ulogint 2079106
ell_get_j 2126269
bid_get_MOD 2157246
bid_get_sprk 2157979
ZXQ_mul 2166250
get_F2x_var 2168705
bid_get_fact2 2201563
gc_slice 2211122
pol_xn 2252818
pari_realloc_ip 2359372
bid_get_archp 2397054
bid_get_fact 2498889
rnf_get_degree 2506335
bnr_get_cyc 2522536
ell_get_b4 2550293
mul_content 2657371
cyc_get_expo 2757541
hash_str 2761454
sqrtnr 2810645
bnr_get_clgp 2830202
zero_Flm 2831017
rnf_get_pol 2845192
vecslicepermute 2858651
znstar_get_pe 2869063
F2x_equal1 2873738
bnf_get_logfu 2874731
RgX_coeff 2889731
gisdouble 2995820
mkpolmod 3075582
Fq_red 3106359
bit_accuracy_mul 3175715
ZV_to_zv 3211715
identity_perm 3243293
F3m_coeff 3255607
zero_Flx 3255690
identity_zv 3267656
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307663
get_FpX_mod 3387843
vec_append 3468914
zero_F2v 3656625
bid_get_U 3680226
bnf_get_cyc 3686597
bnr_get_bnf 3710940
nf_get_index 3711973
perm_inv 3747452
pol_1 3752492
pol_x 3860497
ell_get_b6 3863192
mulsubii 3892358
vec_to_vecsmall 4039403
vecsmall_append 4114699
sqrfrac 4151123
F2x_equal 4187935
mkcol2s 4416244
FpXQX_renormalize 4691850
pol1_F2x 4768664
mkmat 4780127
qfb_disc3 4995143
mkfraccopy 4999672
is_rational_t 5017670
bnf_get_clgp 5375441
nf_get_zkprimpart 5416245
nf_get_zkden 5462044
FpX_div 5581921
bid_get_cyc 5739755
bid_get_grp 5804606
pari_stack_delete 5895755
col_ei 5925273
isintm1 6086478
pari_stack_init 6378420
Flm_copy 6434391
sqrti 6612785
get_FpX_var 6952168
get_FpX_degree 6969260
RgX_div 6997260
vecsmall_lexcmp 7043259
ZM_lll 7117729
RgX_gtofp 7163958
ZX_is_monic 7319899
znstar_get_faN 7334819
vecsmall_copy 7341145
ell_get_b2 7371389
zc_to_ZC 7910575
vecsmall_to_col 7925121
znstar_get_conreycyc 7982108
Q_abs 8061081
mkintmod 8066648
checkell_i 8103958
ZV_ZV_mod 8147202
Flx_equal1 8195966
RgM_gtofp 8257821
F2m_coeff 8358960
Flm_row 8743632
cxtofp 9093374
veclast 9374205
ismpzero 9702462
is_intreal_t 9702570
const_col 9730078
nf_get_invzk 9774521
bnf_get_nf 9866243
RgM_dimensions 9954906
mkvec4 10150183
ell_get_a4 10325142
ell_get_a6 10371102
mkcol 10653217
ZC_hnfrem 10697415
mul_denom 10709661
ell_get_c4 11018698
ell_get_a2 11108724
Fp_addmul 11225046
ser_isexactzero 11434254
gc_INT_affii 11571413
vectrunc_init 11768762
pr_get_gen 12072145
abgrp_get_cyc 12231144
F2x_clear 12361734
F2v_clear 12361748
nbits2nlong 12750214
ell_get_a3 12863747
zeropol 12870925
ell_get_c6 13474456
gmax_shallow 13510227
modpr_get_T 13867137
zeromatcopy 14377867
closure_get_frame 14734513
rowpermute 14758928
ell_get_type 14945978
Fp_div 15034254
Fp_divu 15128762
mkvec5 15187540
vectrunc_append 15855827
pr_get_e 16167017
ell_get_disc 16815875
matslice 16824771
ell_get_a1 17049182
pr_is_inert 17223855
normalize_frac 17311395
pol0_F2x 17357310
isint1 17987106
Fp_center_i 18032954
cxcompotor 18238466
qfb_disc 18502435
mkvecsmall4 18651759
const_vecsmall 18860429
Fp_double 20779718
vecpermute 21109855
Flx_div_pre 21701462
nf_get_M 21745754
RgM_shallowcopy 22234519
RgX_is_ZX 22315428
Fp_inv 23436287
nf_get_r1 23466236
ZV_isscalar 23675246
gmulgs 23859187
get_Flx_mod 25494387
pr_get_f 26443740
RgX_equal_var 26880507
pol_0 27130504
shallowcopy 27895922
mkqfb 27928344
zerovec 29348216
modpr_get_pr 31236566
hash_str_len 31656094
submulii 31985063
RgV_is_ZV 32095984
Fp_neg 32668121
mkmat2 33665645
RgC_gtofp 34034281
const_vec 34669937
polx_Flx 37494418
lincombii 38268401
znstar_get_N 38658713
zero_zv 39509650
mkfrac 41928072
powii 43129957
is_vec_t 43950721
closure_is_variadic 45930289
absfrac 46991776
pr_get_tau 49772671
guncloneNULL 49829491
ell_is_inf 50187656
mkmat22 50257604
QV_isscalar 54419643
pol1_Flx 55714758
addmuliu_inplace 59558054
submuliu_inplace 60072897
is_real_t 61900620
zero_Flv 61988563
Fp_sqr 63782706
qfb_is_qfi 64530971
F2x_copy 64634360
gtodouble 66243036
Fp_mulu 66925778
get_Flx_var 68234075
mkvec 69370588
nf_get_degree 71375591
Fp_center 77304175
vecsmallpermute 78756687
rowslice 79451625
perm_mul 80953019
get_Flx_degree 82914169
Fp_red 82929454
gtos 85865463
sqrtr 86931435
is_noncalc_t 88522174
mkcomplex 92005267
pr_get_p 92760053
cxnorm 94096882
dbllog2r 94327421
nf_get_pol 98118526
vecsmalltrunc_append 100849966
RgX_copy 102487061
gc_all 102550699
mkvecsmall3 103250931
F2v_set 104115037
cgiv 105476776
prec2nbits 106943794
vecsmall_prefixcmp 108088071
pol0_Flx 111627084
mkvec3 121995831
gaddgs 123270506
both_odd 123835098
zerocol 125154450
F2x_renormalize 127765851
nchar2nlong 127921490
F2x_set 129942670
equalim1 139567753
mkvecsmall 140267119
bit_prec 143389648
FpX_renormalize 147016294
mkcol2 156982239
ZX_renormalize 157467955
nbrows 158270215
leading_coeff 169332303
Flx_copy 175749982
Fp_add 183219604
nbits2prec 188999463
Fp_sub 201798131
Fp_mul 203049223
mkvec2 211821350
vecsmalltrunc_init 237213567
gc_GEN 246760549
mkvecsmall2 256937873
gtofp 257178226
gmulgu 283360013
closure_get_data 305980256
closure_get_oper 306002782
closure_codestr 306022876
is_universal_constant 326500348
lgcols 352675914
closure_arity 356454414
is_scalar_t 403476304
lg_increase 426349179
bin_copy 472868139
pari_free 487236084
is_bigint 574363656
leafcopy_avma 592298250
vecslice 657358771
F2v_coeff 664437288
F2x_coeff 671007656
pari_malloc 723329244
is_matvec_t 742847095
pari_stack_new 911031217
GENbinbase 918968908
pari_stack_alloc 1006309275
pari_stack_base 1012205767
gc_leaf 1163308458
equali1 1169311166
nbits2extraprec 1497440066
gc_upto 1971301033
odd 2122728979
is_pm1 2216855758
lgpol 2623676672
isintzero 2848410802
bit_accuracy 3144907760
gc_INT 4134431395
prec2lg 4565278389
is_const_t 5002143529
degpol 5518034339
icopy_avma 8049654383
remsBIL 8146281228
divsBIL 8236666720
isonstack 8358484332
is_recursive_t 9102929170

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