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 30660-09c6d0ed2e) Lines: 1420 1535 92.5 %
Date: 2026-02-03 09:23:21 Functions: 649 707 91.8 %
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
closure_get_code 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
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
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
zero_F2x 1350
rnf_get_idealdisc 1386
rnf_get_alpha 1428
ellQp_get_zero 1463
powIs 1561
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_get_sfu 1743
gchar_set_evalprec 1813
mkintmodu 1813
gchar_get_nm 1869
pari_realloc 1890
RgXQX_div 1904
mkpadic 2009
gchar_get_nalg 2044
gchar_set_nf 2110
gchar_set_u0 2121
vecsmall_min 2345
vecreverse_inplace 2605
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2862
gchar_set_nfprec 2968
vecsmall_reverse 3052
vecsmall_to_vec_inplace 3304
gchar_get_m0 3318
pari_err_TYPE2 3493
get_FpXQX_degree 3589
matpascal 3983
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
rnf_get_zk 4830
rnf_get_nfvarn 4886
idealchineseinit 5427
pari_stack_pushp 5851
gal_get_p 6006
FqX_get_red 6090
gval 6230
FqXn_expint 6590
gal_get_orders 6678
is_extscalar_t 6876
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 8113
gchar_get_mod 8225
locs_get_mod 8225
ndec2nbits 8270
FqX_gcd 8288
bnf_get_no 8372
vectrunc_append_batch 9667
prec2ndec 9778
cgetalloc 10166
gchar_get_Ui 10983
vec_shorten 11556
ZX_equal1 12850
R_abs_shallow 13097
gchar_get_nfprec 13468
closure_get_dbg 13635
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15435
znstar_get_gen 16150
gchar_get_cyc 16177
mkmat3 17001
zeropadic_shallow 17024
gchar_get_r1 17444
Fp_muls 17780
gchar_get_prec 18795
vec_lengthen 18960
FqX_halve 19411
pari_err_INV 20018
FpXY_Fq_evaly 20587
rnf_get_nfdegree 21455
FqX_mulu 21942
nf_get_Tr 22084
gtomp 22428
RgM_fpnorml2 22662
FqXQ_mul 22766
ZV_dvd 23485
gal_get_mod 23758
FqX_neg 24956
FqX_red 25354
bnf_get_fu 25859
nfV_to_scalar_or_alg 26300
gal_get_den 27866
gal_get_invvdm 27874
absfrac_shallow 28237
gequalgs 29176
zerovec_block 29654
gener_Fq_local 29946
gal_get_roots 32732
gchar_get_basis 32816
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33554
Qtoss 35322
gal_get_pol 36316
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37079
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 37822
FqX_div 38568
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47720
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58505
RgX_fpnorml2 61600
err_get_num 62550
bid_get_gen 64274
nf_get_ramified_primes 64644
RgX_is_rational 68163
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 75642
bnr_get_mod 77119
gal_get_group 80387
mkcol3 88314
cyclic_perm 99911
gtou 100697
mkcol4 103467
zv_to_zx 104146
mkmoo 108797
zeromat 109118
RgV_isin 110144
RgV_isin_i 110144
mkvec2copy 114527
Q_abs_shallow 120238
mkmatcopy 122302
mkveccopy 122521
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138442
zeroser 138908
RgV_is_QV 140734
FqX_factor 140946
get_FpXQX_mod 146583
FlxqX_div_pre 165416
znstar_get_U 176107
rowslicepermute 185278
vecsmall_prepend 186970
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200445
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220246
mkcol6 232470
ellR_get_prec 232750
zero_Flm_copy 238229
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249619
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264420
bnr_get_no 277483
gchar_get_zm 281911
bnf_get_tuN 282999
bnf_get_fu_nocheck 289087
bnf_get_tuU 303581
nf_get_G 304937
vec_prepend 313995
get_FlxqX_degree 317565
rnf_get_polabs 327628
Flx_constant 334022
cxtoreal 337205
upr_norm 346136
RgX_renormalize 349807
abgrp_get_no 354943
ZM_hnfrem 363785
FqX_mul 367712
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384916
RgX_is_QX 399938
perm_conj 418299
FqX_Fq_mul 427302
FqX_extgcd 444764
Z_issquare 457643
nf_get_disc 463497
precdbl 475386
RgX_shift_inplace 479367
RgX_shift_inplace_init 479367
zv_to_ZV 502982
vecsmall_to_vec 511781
nf_get_sign 519551
mkvec3s 524441
gdivsg 531590
addmuliu 535772
FqX_Fp_mul 571643
prec2nbits_mul 581167
vecsmall_ei 584713
ZM_ZV_mod 596486
RgC_fpnorml2 619846
FqX_is_squarefree 683802
vecreverse 697277
mkrfrac 698439
coltrunc_init 740250
logint 754841
gcmpgs 761918
row 763882
rnf_get_nf 786086
ellff_get_a4a6 800032
zero_F2m_copy 845056
FpXX_renormalize 849917
zeropadic 855694
gmin_shallow 877779
affgr 899594
ZXQ_sqr 960443
cgetc 975458
Flx_lead 979149
polx_F2x 1078057
pr_norm 1090578
sstoQ 1097215
Fp_invsafe 1100362
Flx_mulu 1105417
vecsmall_max 1164129
mkfracss 1209563
RgV_isscalar 1210270
gen_I 1269720
RgX_is_monomial 1331371
mkoo 1331911
bnf_get_sunits 1367776
rnf_get_absdegree 1392746
bnr_get_nf 1399074
zero_Flx 1426968
constant_coeff 1441442
Rg_col_ei 1451014
inf_get_sign 1452962
vecsmall_concat 1464224
guncloneNULL_deep 1499317
nf_get_varn 1503763
bid_get_mod 1521921
F2m_flip 1554050
F2v_flip 1554050
F2x_flip 1554050
F2x_div 1570119
uutoQ 1600212
nf_get_roots 1629023
bnf_get_gen 1680325
ulogint 1713145
vec_ei 1713882
mkvecsmall5 1717503
gsubgs 1724822
nf_get_roundG 1748253
abgrp_get_gen 1765036
ellinf 1869949
modpr_get_p 1887626
get_F2x_degree 1929017
killblock 1952029
Flx_div 1998024
ellnf_get_nf 2027249
ellff_get_field 2036865
bnr_get_bid 2046087
ell_get_j 2126269
bid_get_MOD 2157246
bid_get_sprk 2157971
ZXQ_mul 2161240
zv_copy 2183765
bid_get_fact2 2201567
gc_slice 2204256
pol_xn 2249312
pari_realloc_ip 2348256
bid_get_archp 2397124
bid_get_fact 2498940
get_F2x_mod 2499333
rnf_get_degree 2506335
bnr_get_cyc 2522573
get_F2x_var 2534040
ell_get_b4 2550216
Flv_copy 2555019
mul_content 2657305
RgX_coeff 2669861
vecslicepermute 2691106
cyc_get_expo 2757549
hash_str 2760615
perm_inv 2781943
sqrtnr 2810355
zero_Flm 2829464
bnr_get_clgp 2830241
rnf_get_pol 2845192
znstar_get_pe 2869063
F2x_equal1 2874085
bnf_get_logfu 2874773
gisdouble 2996987
mkpolmod 3103721
Fq_red 3106454
bit_accuracy_mul 3175484
ZV_to_zv 3211408
identity_perm 3241546
F3m_coeff 3255868
identity_zv 3265896
znstar_get_conreygen 3290176
ell_get_b8 3297414
get_FpX_mod 3394371
vec_append 3464635
zero_F2v 3647768
bid_get_U 3680226
bnf_get_cyc 3686164
bnr_get_bnf 3710931
nf_get_index 3711419
pol_1 3755738
pol_x 3857198
ell_get_b6 3863115
mulsubii 3882184
pol1_F2x 3957746
vec_to_vecsmall 4036637
vecsmall_append 4099168
sqrfrac 4148305
vecsmall_copy 4403882
mkcol2s 4416244
F2x_equal 4667585
FpXQX_renormalize 4694417
mkmat 4750932
qfb_disc3 4996315
mkfraccopy 4999419
is_rational_t 5032679
bnf_get_clgp 5375031
nf_get_zkprimpart 5414080
nf_get_zkden 5459939
FpX_div 5581244
checkell_i 5593197
isintm1 5710246
bid_get_cyc 5739840
bid_get_grp 5804692
pari_stack_delete 5852245
col_ei 5924624
pari_stack_init 6351192
get_FpX_degree 6424205
Flm_copy 6433649
sqrti 6610278
get_FpX_var 6958127
RgX_div 7000642
vecsmall_lexcmp 7043259
ell_get_a2 7106184
ZM_lll 7118240
RgX_gtofp 7145200
znstar_get_faN 7331711
ell_get_b2 7371033
ZX_is_monic 7374287
zc_to_ZC 7824864
vecsmall_to_col 7839046
znstar_get_conreycyc 7979693
F2m_coeff 8038314
Q_abs 8062531
mkintmod 8092630
ZV_ZV_mod 8131501
RgM_gtofp 8258728
Flx_equal1 8330099
gc_INT_affii 8492402
ell_get_a4 8536725
Flm_row 8741239
ell_get_a3 8814055
ell_get_a1 8997087
cxtofp 9079171
veclast 9372712
ismpzero 9584798
is_intreal_t 9584898
const_col 9729680
RgM_dimensions 9741768
nf_get_invzk 9767573
bnf_get_nf 9865196
mkvec4 10093833
ser_isexactzero 10120284
ell_get_a6 10370963
mkcol 10639810
ZC_hnfrem 10697459
mul_denom 10707839
ell_get_c4 11017569
Fp_addmul 11261118
vectrunc_init 11766006
pr_get_gen 12071403
abgrp_get_cyc 12230842
F2v_clear 12353714
F2x_clear 12353714
ell_get_type 12498675
nbits2nlong 12756361
pol0_F2x 13247577
ell_get_c6 13473997
gmax_shallow 13510200
modpr_get_T 13867153
zeromatcopy 14251200
rowpermute 14705880
closure_get_frame 14715294
Fp_div 15033653
Fp_divu 15128135
mkvec5 15185767
vectrunc_append 15851301
pr_get_e 16162330
ell_get_disc 16814552
matslice 16820117
normalize_frac 17205580
pr_is_inert 17224441
isint1 17584895
Fp_center_i 18016813
cxcompotor 18210221
qfb_disc 18502546
mkvecsmall4 18672038
const_vecsmall 19706988
vecpermute 20549765
Fp_double 20906576
Flx_div_pre 21693468
nf_get_M 21745810
RgM_shallowcopy 22179931
RgX_is_ZX 22423401
gmulgs 22632178
Fp_inv 23440430
nf_get_r1 23466309
ZV_isscalar 23675058
get_Flx_mod 25597378
pr_get_f 26443639
RgX_equal_var 26883022
shallowcopy 27632493
mkqfb 27930768
zerovec 28453768
modpr_get_pr 31236648
Fp_neg 31479358
hash_str_len 31630540
submulii 31982591
RgV_is_ZV 32158275
mkmat2 33655061
RgC_gtofp 34035190
const_vec 34566081
zero_zv 36734218
polx_Flx 37490313
lincombii 38240844
znstar_get_N 38655073
mkfrac 41641791
zeropol 42353955
powii 43130499
is_vec_t 43968690
closure_is_variadic 45903099
absfrac 46638570
guncloneNULL 48013459
pr_get_tau 49769439
mkmat22 50284187
ell_is_inf 52357871
QV_isscalar 54417018
pol1_Flx 55060547
addmuliu_inplace 59653695
zero_Flv 59673447
submuliu_inplace 60152929
F2x_copy 60526730
gtodouble 60781656
is_real_t 62062522
qfb_is_qfi 62326389
Fp_sqr 64007208
Fp_mulu 67558873
get_Flx_var 68359089
mkvec 71203795
nf_get_degree 71371084
Fp_center 77205370
vecsmallpermute 78699778
rowslice 79320059
sqrtr 80376914
perm_mul 80894745
Fp_red 82191819
get_Flx_degree 82269610
pol_0 82996705
gtos 85855667
is_noncalc_t 85872794
cxnorm 91198962
mkcomplex 91609008
pr_get_p 92751604
dbllog2r 92818122
nf_get_pol 98109925
vecsmalltrunc_append 100878760
F2v_set 101403260
cgiv 102687212
RgX_copy 103406696
pol0_Flx 103484237
prec2nbits 103970434
mkvecsmall3 104186972
vecsmall_prefixcmp 108088071
gc_all 109637165
F2x_renormalize 115401519
mkvec3 117980775
zerocol 122341150
gaddgs 123248637
both_odd 123971744
F2x_set 124779013
nchar2nlong 127563557
mkvecsmall 131643501
equalim1 139505228
bit_prec 143261691
FpX_renormalize 144220349
ZX_renormalize 155033754
mkcol2 156894866
nbrows 157474336
leading_coeff 170224651
Flx_copy 173232437
Fp_add 181253422
mkvec2 184263641
nbits2prec 186142531
vecsmalltrunc_init 187900230
Fp_mul 200810526
Fp_sub 202739157
mkvecsmall2 234948134
gtofp 254347355
gc_GEN 255517029
gmulgu 282059385
lg_increase 312763171
closure_get_data 322212978
closure_get_oper 322239065
closure_codestr 322255581
is_universal_constant 326490413
lgcols 351616174
closure_arity 372674021
is_scalar_t 375659671
bin_copy 496066983
pari_free 509555037
is_bigint 563414092
leafcopy_avma 577272698
vecslice 656053533
is_matvec_t 659661958
F2v_coeff 661318283
F2x_coeff 667901310
pari_malloc 745495441
pari_stack_new 927050101
GENbinbase 961920469
pari_stack_alloc 1022297392
pari_stack_base 1028150974
gc_leaf 1136904949
equali1 1174331700
nbits2extraprec 1458466416
gc_upto 1954580095
odd 2089932883
is_pm1 2205193313
lgpol 2688251452
isintzero 2844698935
bit_accuracy 3160449834
gc_INT 4111928557
prec2lg 4470207941
is_const_t 4899420658
degpol 5492082046
remsBIL 8003911295
icopy_avma 8040500672
divsBIL 8095040801
isonstack 8275862728
is_recursive_t 9238746973

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