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 30651-3e52073f6d) Lines: 1420 1535 92.5 %
Date: 2026-01-28 09:23:10 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 22083
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 27867
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 37921
FqX_div 38568
FqX_deriv 40061
mkcols 40411
bid_get_arch 41187
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 58504
RgX_fpnorml2 61600
err_get_num 62551
bid_get_gen 64274
nf_get_ramified_primes 64643
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 75639
bnr_get_mod 77119
gal_get_group 80388
mkcol3 88314
cyclic_perm 99911
gtou 100716
mkcol4 103467
zv_to_zx 104146
mkmoo 108801
zeromat 109109
RgV_isin 110144
RgV_isin_i 110144
mkvec2copy 114530
Q_abs_shallow 120223
mkmatcopy 122274
mkveccopy 122521
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138440
zeroser 138908
RgV_is_QV 140735
FqX_factor 140946
get_FpXQX_mod 146583
FlxqX_div_pre 165412
znstar_get_U 176107
rowslicepermute 184991
vecsmall_prepend 186970
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200439
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220250
mkcol6 232470
ellR_get_prec 232750
zero_Flm_copy 238227
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249623
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264420
bnr_get_no 277487
gchar_get_zm 281911
bnf_get_tuN 283003
bnf_get_fu_nocheck 289088
bnf_get_tuU 303587
nf_get_G 304858
vec_prepend 314001
get_FlxqX_degree 317565
rnf_get_polabs 327628
Flx_constant 334019
cxtoreal 337205
upr_norm 346134
RgX_renormalize 349807
abgrp_get_no 354947
ZM_hnfrem 363759
FqX_mul 367712
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384912
RgX_is_QX 399927
perm_conj 418299
FqX_Fq_mul 427295
FqX_extgcd 444762
Z_issquare 457640
nf_get_disc 463474
precdbl 475393
RgX_shift_inplace 479366
RgX_shift_inplace_init 479366
zv_to_ZV 502982
vecsmall_to_vec 511781
nf_get_sign 519553
mkvec3s 524441
gdivsg 531592
addmuliu 535889
FqX_Fp_mul 571634
prec2nbits_mul 581166
vecsmall_ei 584713
ZM_ZV_mod 596484
RgC_fpnorml2 619842
FqX_is_squarefree 683802
vecreverse 697277
mkrfrac 698439
coltrunc_init 740250
logint 754833
gcmpgs 761920
row 763908
rnf_get_nf 786086
ellff_get_a4a6 800039
zero_F2m_copy 845047
FpXX_renormalize 849917
zeropadic 855592
gmin_shallow 877809
affgr 898901
ZXQ_sqr 960452
cgetc 975458
Flx_lead 979289
polx_F2x 1078499
pr_norm 1090454
sstoQ 1097215
Fp_invsafe 1100355
Flx_mulu 1105462
vecsmall_max 1164179
mkfracss 1209563
RgV_isscalar 1210267
gen_I 1269728
RgX_is_monomial 1331341
mkoo 1331862
bnf_get_sunits 1367771
rnf_get_absdegree 1392746
bnr_get_nf 1399077
zero_Flx 1426748
constant_coeff 1441425
Rg_col_ei 1451013
inf_get_sign 1452925
vecsmall_concat 1464246
guncloneNULL_deep 1491261
nf_get_varn 1503774
bid_get_mod 1521920
F2m_flip 1554224
F2v_flip 1554224
F2x_flip 1554224
F2x_div 1570686
uutoQ 1600198
nf_get_roots 1628922
bnf_get_gen 1680304
vec_ei 1713884
mkvecsmall5 1717542
ulogint 1722585
gsubgs 1724813
nf_get_roundG 1748162
abgrp_get_gen 1765016
ellinf 1869886
modpr_get_p 1887626
get_F2x_degree 1929216
killblock 1948395
Flx_div 1997992
ellnf_get_nf 2027240
ellff_get_field 2036898
bnr_get_bid 2046096
ell_get_j 2126269
bid_get_MOD 2157258
bid_get_sprk 2157987
ZXQ_mul 2161176
zv_copy 2183826
bid_get_fact2 2201579
gc_slice 2204173
pol_xn 2249275
pari_realloc_ip 2349869
bid_get_archp 2397129
bid_get_fact 2498928
get_F2x_mod 2499380
rnf_get_degree 2506335
bnr_get_cyc 2522564
get_F2x_var 2534289
ell_get_b4 2550216
Flv_copy 2555079
mul_content 2657086
RgX_coeff 2669861
vecslicepermute 2689916
cyc_get_expo 2757545
hash_str 2760615
perm_inv 2781836
sqrtnr 2810096
zero_Flm 2829111
bnr_get_clgp 2830240
rnf_get_pol 2845192
znstar_get_pe 2869063
F2x_equal1 2874075
bnf_get_logfu 2874761
gisdouble 2995575
mkpolmod 3103724
Fq_red 3106503
bit_accuracy_mul 3175484
ZV_to_zv 3211407
identity_perm 3241146
F3m_coeff 3255861
identity_zv 3265496
znstar_get_conreygen 3290176
ell_get_b8 3297414
get_FpX_mod 3394395
vec_append 3464648
zero_F2v 3647707
bid_get_U 3680232
bnf_get_cyc 3686146
bnr_get_bnf 3710951
nf_get_index 3711354
pol_1 3755753
pol_x 3857194
ell_get_b6 3863115
mulsubii 3881783
pol1_F2x 3959537
vec_to_vecsmall 4036628
vecsmall_append 4099182
sqrfrac 4148145
vecsmall_copy 4403969
mkcol2s 4416244
F2x_equal 4663367
FpXQX_renormalize 4694190
mkmat 4750968
qfb_disc3 4995834
mkfraccopy 4999785
is_rational_t 5032567
bnf_get_clgp 5374987
nf_get_zkprimpart 5413930
nf_get_zkden 5459768
FpX_div 5581195
checkell_i 5593275
isintm1 5710283
bid_get_cyc 5739816
bid_get_grp 5804681
pari_stack_delete 5830391
col_ei 5924481
pari_stack_init 6352496
get_FpX_degree 6424428
Flm_copy 6433520
sqrti 6610113
get_FpX_var 6957825
RgX_div 7000642
vecsmall_lexcmp 7043244
ell_get_a2 7106197
ZM_lll 7117554
RgX_gtofp 7145362
znstar_get_faN 7331711
ell_get_b2 7371026
ZX_is_monic 7374329
zc_to_ZC 7824404
vecsmall_to_col 7838584
znstar_get_conreycyc 7979693
F2m_coeff 8038647
Q_abs 8062678
mkintmod 8092571
ZV_ZV_mod 8131470
RgM_gtofp 8257643
Flx_equal1 8330053
gc_INT_affii 8486957
ell_get_a4 8536738
Flm_row 8741744
ell_get_a3 8814061
ell_get_a1 8997093
cxtofp 9079444
veclast 9372739
ismpzero 9584436
is_intreal_t 9584540
const_col 9729676
RgM_dimensions 9741793
nf_get_invzk 9767450
bnf_get_nf 9865153
mkvec4 10093906
ser_isexactzero 10120284
ell_get_a6 10370976
mkcol 10639647
ZC_hnfrem 10697324
mul_denom 10707627
ell_get_c4 11018189
Fp_addmul 11222004
vectrunc_init 11765584
pr_get_gen 12070921
abgrp_get_cyc 12230800
F2x_clear 12353853
F2v_clear 12353861
ell_get_type 12498948
nbits2nlong 12760209
pol0_F2x 13254915
ell_get_c6 13474597
gmax_shallow 13510199
modpr_get_T 13867142
zeromatcopy 14249510
rowpermute 14704898
closure_get_frame 14715136
Fp_div 15034937
Fp_divu 15129548
mkvec5 15185607
vectrunc_append 15852026
pr_get_e 16161624
ell_get_disc 16815359
matslice 16818691
normalize_frac 17205859
pr_is_inert 17223855
isint1 17584924
Fp_center_i 18041730
cxcompotor 18210701
qfb_disc 18502506
mkvecsmall4 18666839
const_vecsmall 19706241
vecpermute 20546604
Fp_double 20799982
Flx_div_pre 21691288
nf_get_M 21745686
RgM_shallowcopy 22179157
RgX_is_ZX 22423285
gmulgs 22555511
Fp_inv 23440047
nf_get_r1 23466076
ZV_isscalar 23674931
get_Flx_mod 25595943
pr_get_f 26442466
RgX_equal_var 26883021
shallowcopy 27631361
mkqfb 27929802
zerovec 28453603
modpr_get_pr 31236623
Fp_neg 31485148
hash_str_len 31629544
submulii 31982591
RgV_is_ZV 32158275
mkmat2 33654298
RgC_gtofp 34028537
const_vec 34564421
zero_zv 36735632
polx_Flx 37487176
lincombii 38223072
znstar_get_N 38655073
mkfrac 41636884
zeropol 42354045
powii 43130356
is_vec_t 43960882
closure_is_variadic 45903089
absfrac 46638726
guncloneNULL 48004922
pr_get_tau 49767638
mkmat22 50284581
ell_is_inf 52369835
QV_isscalar 54415284
pol1_Flx 55060057
zero_Flv 59676637
addmuliu_inplace 59707935
submuliu_inplace 60201188
F2x_copy 60467745
gtodouble 60779879
is_real_t 62062468
qfb_is_qfi 62316207
Fp_sqr 63570661
Fp_mulu 67401656
get_Flx_var 68355025
mkvec 71223206
nf_get_degree 71369021
Fp_center 77233356
vecsmallpermute 78697433
rowslice 79319273
sqrtr 80368072
perm_mul 80892688
Fp_red 82190444
get_Flx_degree 82228794
pol_0 82996848
gtos 85855651
is_noncalc_t 85871021
cxnorm 91198046
mkcomplex 91609819
pr_get_p 92749433
dbllog2r 92815409
nf_get_pol 98107177
vecsmalltrunc_append 100920575
F2v_set 101403463
cgiv 102677772
RgX_copy 103406787
pol0_Flx 103501507
prec2nbits 103962679
mkvecsmall3 104179913
vecsmall_prefixcmp 108088071
gc_all 109635507
F2x_renormalize 115310049
mkvec3 117868657
zerocol 122326296
gaddgs 123248628
both_odd 124102604
F2x_set 124817614
nchar2nlong 127555461
mkvecsmall 131661361
equalim1 139505279
bit_prec 143238777
FpX_renormalize 144207345
ZX_renormalize 154986528
mkcol2 156900587
nbrows 157456518
leading_coeff 170223582
Flx_copy 173204131
Fp_add 181023435
mkvec2 186116840
nbits2prec 186118317
vecsmalltrunc_init 191846296
Fp_mul 200743939
Fp_sub 202498551
mkvecsmall2 234942038
gtofp 254308947
gc_GEN 255541799
gmulgu 282059384
lg_increase 321472462
closure_get_data 322037504
closure_get_oper 322060101
closure_codestr 322083323
is_universal_constant 326504596
lgcols 351595674
closure_arity 372490965
is_scalar_t 375657954
bin_copy 496054613
pari_free 509533000
is_bigint 563368076
leafcopy_avma 577411112
vecslice 655953134
is_matvec_t 659510333
F2v_coeff 661320771
F2x_coeff 668022920
pari_malloc 745484075
pari_stack_new 926878365
GENbinbase 961897718
pari_stack_alloc 1022135394
pari_stack_base 1027963545
gc_leaf 1136573792
equali1 1174276779
nbits2extraprec 1457997146
gc_upto 1954430575
odd 2090087354
is_pm1 2205263912
lgpol 2687268787
isintzero 2843496599
bit_accuracy 3160158878
gc_INT 4110934987
prec2lg 4467326625
is_const_t 4898414129
degpol 5491330232
remsBIL 8000770393
icopy_avma 8039643492
divsBIL 8091871519
isonstack 8273690678
is_recursive_t 9238593028

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