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) Coverage Total Hit
Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 92.5 % 1535 1420
Test Date: 2026-11-14 17:03:41 Functions: 91.8 % 707 649
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function 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
bit_prec 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
nbits2ndec 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
mkvec6 42
RgV_gtofp 56
pari_err_IRREDPOL 63
bnr_get_gen_nocheck 70
pari_err_ROOTS0 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
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 637
gchar_set_nalg 637
gchar_set_nfree 637
gchar_set_ntors 637
bnf_get_reg 648
pari_err_DIM 718
perm_sqr 728
Rg_to_Fq 756
F2m_set 798
row_i 987
RgM_minor 1036
ellQp_get_p 1134
gchar_set_m0 1190
rnf_get_invzk 1225
rnf_get_k 1225
FqX_powu 1288
locs_get_Lgenfil 1288
locs_get_famod 1288
pari_err_MODULUS 1316
zero_F2x 1350
quad_disc 1379
rnf_get_idealdisc 1386
rnf_get_alpha 1428
ellQp_get_zero 1463
gchar_copy_precs 1470
gchar_set_prec 1470
gchar_set_basis 1827
gchar_set_cyc 1827
mkintmodu 1834
pari_realloc 1887
RgXQX_div 1904
gchar_get_sfu 1996
mkpadic 2009
gchar_set_evalprec 2086
gchar_get_nm 2108
gchar_set_u0 2142
gchar_get_nalg 2296
gchar_set_nf 2363
vecreverse_inplace 2612
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2876
vecsmall_reverse 3052
vecsmall_to_vec_inplace 3304
gchar_set_nfprec 3466
pari_err_TYPE2 3493
get_FpXQX_degree 3569
gchar_get_m0 3823
gchar_get_evalprec 4011
gchar_get_modP 4095
FqX_normalize 4144
nf_get_r2 4154
nf_get_zk 4382
nf_get_diff 4445
FpXQX_div 4519
rnf_get_zk 4830
rnf_get_nfvarn 4886
F2v_copy 4893
matpascal 4935
gchar_get_u0 5002
idealchineseinit 5427
vecsmall_min 5509
pari_stack_pushp 5840
FqX_get_red 6069
gal_get_p 6118
gval 6391
FqXn_expint 6590
gal_get_orders 6713
is_extscalar_t 6904
FqXn_inv 7070
pari_err_SQRTN 7084
FqX_roots 7231
rnf_get_nfzk 7245
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 8386
vectrunc_append_batch 9667
prec2ndec 9778
cgetalloc 10153
ZX_equal1 10514
gchar_get_Ui 11096
vec_shorten 11564
R_abs_shallow 13097
absfrac_shallow 13097
closure_get_dbg 13674
gchar_get_nfprec 13854
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15624
znstar_get_gen 16150
gchar_get_cyc 16535
mkmat3 17003
zeropadic_shallow 17150
Fp_muls 17640
gchar_get_r1 17683
vec_lengthen 18983
FqX_halve 19250
gchar_get_prec 19427
pari_err_INV 20032
FpXY_Fq_evaly 20405
rnf_get_nfdegree 21455
FqX_mulu 21900
gtomp 22428
FqXQ_mul 22745
RgM_fpnorml2 23338
nf_get_Tr 23352
ZV_dvd 23485
gal_get_mod 23870
FqX_neg 24900
FqX_red 25298
bnf_get_fu 25859
nfV_to_scalar_or_alg 26300
gal_get_den 27867
gal_get_invvdm 27874
gequalgs 29246
zerovec_block 29675
gener_Fq_local 29946
gal_get_roots 32844
F2xqX_div 33187
ndec2prec 33559
mkcolcopy 33561
RgX_renormalize 34135
gchar_get_basis 34731
Qtoss 35364
gal_get_pol 36428
closure_get_text 37178
FqX_rem 37659
gchar_get_S 38371
gchar_get_ns 38371
FqX_div 38569
gchar_get_nc 38876
F2v_to_F2x 38974
FqX_deriv 39697
mkcols 40411
bid_get_arch 41188
ndec2nlong 41829
znstar_get_Ui 46788
FqX_degfact 47786
pari_calloc 48209
bid_get_sarch 48594
vecmoduu 49784
get_FpXQX_var 51430
gchar_get_loccyc 52520
locs_get_cyc 54144
div_content 58502
RgX_fpnorml2 62765
bid_get_gen 64274
nf_get_ramified_primes 65098
FqX_sub 68026
RgX_is_rational 68842
mkquad 69118
FqX_div_by_X_x 69699
quadnorm 70105
FqX_sqr 71232
bid_get_ideal 72849
Fq_to_FpXQ 73652
vecsmall_shorten 77081
bnr_get_mod 77126
gal_get_group 80528
mkcol3 88320
cyclic_perm 99932
gtou 102007
mkcol4 103467
zv_to_zx 104146
zeromat 108880
mkmoo 108951
RgV_isin 111958
RgV_isin_i 111958
mkvec2copy 114570
mkmatcopy 122351
mkveccopy 122528
FqX_add 124082
Q_abs_shallow 127658
RgXQX_rem 127908
rnf_get_map 135659
zeroser 139020
idealred 139126
FqX_factor 140960
RgV_is_QV 142058
F3m_coeff 144858
get_FpXQX_mod 146583
FlxqX_div_pre 165917
znstar_get_U 176107
vecsmall_prepend 187025
gchar_get_DLdata 192479
locs_get_Lsprk 195755
get_F2xqX_degree 201185
F2m_copy 201410
rowcopy 204988
mkmat22s 207578
gchar_get_bnf 207685
locs_get_m_infty 211534
mkvec2s 221667
mkcol6 232582
ellR_get_prec 232939
rowslicepermute 234132
zero_Flm_copy 241030
Fp_halve 243517
gchar_get_nf 247942
affc_fixlg 250436
rnf_get_nfpol 255354
FqXn_mul 261240
znstar_get_cyc 262088
get_FlxqX_var 266299
bnr_get_no 277494
bnf_get_tuN 283031
gchar_get_zm 286343
bnf_get_fu_nocheck 289112
bnf_get_tuU 303613
nf_get_G 304567
vec_prepend 313943
get_FlxqX_degree 320067
rnf_get_polabs 327628
cxtoreal 338020
upr_norm 347921
FqX_mul 369136
ellR_get_sign 371829
get_F2xqX_var 376106
vecsplice 385296
RgX_is_QX 400124
ZM_hnfrem 401475
abgrp_get_no 407116
perm_conj 422429
FqX_Fq_mul 424510
err_get_num 439296
FqX_extgcd 449758
nf_get_disc 464441
precdbl 476737
RgX_shift_inplace 479615
RgX_shift_inplace_init 479615
zv_to_ZV 504205
Z_issquare 509837
vecsmall_to_vec 513109
nf_get_sign 522482
mkvec3s 524441
addmuliu 549607
ellff_get_a4a6 551872
gdivsg 561958
FqX_Fp_mul 579683
prec2nbits_mul 581910
vecsmall_ei 585513
ZM_ZV_mod 611010
RgC_fpnorml2 620024
powIs 620095
affgr 665850
FqX_is_squarefree 683718
vecreverse 697305
mkrfrac 698726
coltrunc_init 740376
logint 757174
gcmpgs 761951
row 767844
FpXX_renormalize 782142
rnf_get_nf 786086
zero_F2m_copy 847277
zeropadic 858086
gmin_shallow 902807
ZXQ_sqr 963335
cgetc 976273
constant_coeff 1065040
Flx_lead 1067182
polx_F2x 1083560
pr_norm 1090561
Flx_constant 1092086
sstoQ 1097313
ellinf 1097909
Fp_invsafe 1098683
Flx_mulu 1155304
vecsmall_max 1177915
mkfracss 1209605
RgV_isscalar 1211819
gen_I 1269376
mkoo 1333299
RgX_is_monomial 1346216
bnf_get_sunits 1369339
rnf_get_absdegree 1392746
bnr_get_nf 1399132
inf_get_sign 1454472
vecsmall_concat 1466215
Rg_col_ei 1472515
nf_get_varn 1504035
bid_get_mod 1521921
guncloneNULL_deep 1555350
F2m_flip 1560492
F2v_flip 1560492
F2x_flip 1560492
F2x_div 1579959
uutoQ 1602256
nf_get_roots 1632803
bnf_get_gen 1681899
vec_ei 1716793
gsubgs 1731854
nf_get_roundG 1749486
abgrp_get_gen 1766677
ellff_get_field 1791801
zv_copy 1879712
modpr_get_p 1887627
mkvecsmall5 1898398
get_F2x_degree 1936346
killblock 1982412
Flx_div 2003291
ellnf_get_nf 2027312
bnr_get_bid 2046122
ulogint 2113200
ell_get_j 2126895
bid_get_MOD 2157304
bid_get_sprk 2158039
get_F2x_var 2176412
ZXQ_mul 2192165
bid_get_fact2 2201621
gc_slice 2217768
pol_xn 2237748
Flv_copy 2251272
pari_realloc_ip 2385168
bid_get_archp 2397285
bid_get_fact 2499065
rnf_get_degree 2506335
bnr_get_cyc 2522682
ell_get_b4 2550719
mul_content 2672418
cyc_get_expo 2757632
hash_str 2787689
sqrtnr 2811886
bnr_get_clgp 2830388
rnf_get_pol 2845192
zero_Flm 2855055
znstar_get_pe 2869070
F2x_equal1 2871738
bnf_get_logfu 2877898
vecslicepermute 2881020
RgX_coeff 2909086
gisdouble 2992319
Fq_red 3109642
bit_accuracy_mul 3176882
zero_Flx 3256184
identity_perm 3260381
identity_zv 3284744
znstar_get_conreygen 3290533
mkpolmod 3297287
ell_get_b8 3297567
get_F2x_mod 3310932
ZV_to_zv 3318880
get_FpX_mod 3391311
vec_append 3470860
zero_F2v 3663663
bid_get_U 3680282
bnf_get_cyc 3689996
bnr_get_bnf 3710982
nf_get_index 3716967
pol_1 3762696
perm_inv 3781202
ell_get_b6 3863695
pol_x 3886959
mulsubii 3898806
vecsmall_append 4117808
vec_to_vecsmall 4149430
F2x_equal 4256827
sqrfrac 4399479
mkcol2s 4416244
FpXQX_renormalize 4641882
pol1_F2x 4774708
mkmat 4783070
qfb_disc3 5001802
mkfraccopy 5217043
is_rational_t 5304049
bnf_get_clgp 5380463
nf_get_zkprimpart 5419566
nf_get_zkden 5465290
FpX_div 5609795
bid_get_cyc 5740019
bid_get_grp 5804874
col_ei 5929172
pari_stack_delete 6063492
isintm1 6224542
Flm_copy 6442122
pari_stack_init 6446055
sqrti 6618467
get_FpX_var 6879834
RgX_div 7001097
ZM_lll 7142332
RgX_gtofp 7173964
vecsmall_lexcmp 7211133
znstar_get_faN 7334854
vecsmall_copy 7353841
ell_get_b2 7552256
ZX_is_monic 7723180
zc_to_ZC 7978886
znstar_get_conreycyc 7982136
vecsmall_to_col 7993432
mkintmod 8073810
get_FpX_degree 8094078
Q_abs 8131139
ZV_ZV_mod 8148021
Flx_equal1 8248064
RgM_gtofp 8264189
F2m_coeff 8462974
Flm_row 8755441
cxtofp 9248849
veclast 9557809
ismpzero 9716392
is_intreal_t 9716483
const_col 9731330
nf_get_invzk 9782804
bnf_get_nf 9875390
RgM_dimensions 9956226
ell_get_a4 10507522
mkvec4 10533143
ell_get_a6 10552229
mkcol 10667552
ZC_hnfrem 10699714
mul_denom 10788537
checkell_i 10953984
ell_get_a2 11293897
Fp_addmul 11356183
gc_INT_affii 11657288
vectrunc_init 11795324
ser_isexactzero 11871524
pr_get_gen 12077667
abgrp_get_cyc 12235183
F2v_clear 12464023
F2x_clear 12464023
ell_get_a3 13229514
gmax_shallow 13510257
ell_get_c4 13707201
modpr_get_T 13867549
zeromatcopy 14383653
closure_get_frame 14757957
rowpermute 14794647
Fp_div 14993213
Fp_divu 15087752
mkvec5 15190532
vectrunc_append 15914464
pr_get_e 16164818
ell_get_c6 16166547
matslice 16932222
pr_is_inert 17227448
pol0_F2x 17417445
ell_get_a1 17419098
ell_get_disc 18144762
Fp_center_i 18207809
isint1 18256695
qfb_disc 18522403
cxcompotor 18766777
const_vecsmall 18940913
mkvecsmall4 20245133
vecpermute 21130408
Fp_double 21445730
nf_get_M 21751113
Flx_div_pre 21817138
RgM_shallowcopy 22268598
RgX_is_ZX 22521736
ell_get_type 22946847
nf_get_r1 23476072
Fp_inv 23545075
ZV_isscalar 23696947
get_Flx_mod 25663182
pr_get_f 26447206
RgX_equal_var 27145972
shallowcopy 27955411
normalize_frac 28149241
mkqfb 28269051
zerovec 29356733
gmulgs 29800735
modpr_get_pr 31237605
hash_str_len 31645688
RgV_is_ZV 32132602
submulii 33037982
mkmat2 33669730
RgC_gtofp 34122330
const_vec 34728989
Fp_neg 37720041
polx_Flx 37977874
lincombii 38354017
znstar_get_N 38658755
zero_zv 39183204
zeropol 42429176
powii 43757711
is_vec_t 44253520
closure_is_variadic 46077203
absfrac 48084612
guncloneNULL 48998274
pr_get_tau 49776978
QV_isscalar 54425082
mkmat22 54536289
mkfrac 54560910
pol1_Flx 56076524
ell_is_inf 59308292
zero_Flv 61809965
is_real_t 62080967
qfb_is_qfi 65331408
addmuliu_inplace 66038363
gtodouble 66282673
submuliu_inplace 66545505
F2x_copy 66578297
Fp_sqr 69062705
get_Flx_var 69188231
mkvec 70143242
nf_get_degree 71318522
Fp_mulu 72705964
Fp_center 78866493
vecsmallpermute 79343701
rowslice 80074217
perm_mul 81657016
Fp_red 83005020
get_Flx_degree 84098322
pol_0 84220441
gtos 85888520
is_noncalc_t 86219395
sqrtr 87237706
pr_get_p 92765145
mkcomplex 92996754
prec2nbits 93803410
dbllog2r 94961082
cxnorm 95482598
nf_get_pol 98101284
vecsmalltrunc_append 101231003
gc_all 103409369
RgX_copy 103803323
F2v_set 104219425
cgiv 106106093
mkvecsmall3 106869809
vecsmall_prefixcmp 108088071
pol0_Flx 114758822
gaddgs 123273820
both_odd 124811442
zerocol 125340503
mkvec3 125746223
nchar2nlong 127833785
F2x_set 130175069
F2x_renormalize 130540168
equalim1 139584419
mkvecsmall 143613434
FpX_renormalize 146566744
ZX_renormalize 158586000
nbrows 159342984
mkcol2 168884627
leading_coeff 169547566
Fp_add 185086208
nbits2prec 189567526
Flx_copy 196477311
Fp_sub 203703885
Fp_mul 205046249
mkvec2 222650087
gc_GEN 238014260
vecsmalltrunc_init 255784554
gtofp 260508063
mkvecsmall2 262002225
closure_get_data 281319207
closure_codestr 281332604
closure_get_oper 281332604
gmulgu 283377954
closure_arity 331885301
is_universal_constant 332094576
lgcols 354526168
is_scalar_t 376859398
lg_increase 474546305
bin_copy 480524511
pari_free 494840734
leafcopy_avma 586456913
is_bigint 592063861
nbits2nlong 620902949
is_matvec_t 638321854
F2v_coeff 665814801
vecslice 670260509
F2x_coeff 672285687
pari_malloc 730384537
pari_stack_new 885272294
nbits2extraprec 918241741
GENbinbase 934014296
pari_stack_alloc 980737511
pari_stack_base 986806849
equali1 1180125128
gc_leaf 1208891736
gc_upto 2017970064
odd 2139386926
is_pm1 2307773202
lgpol 2775657487
isintzero 2911189999
bit_accuracy 3221594712
gc_INT 4194584621
prec2lg 4749162079
is_const_t 5001793495
degpol 5656543870
icopy_avma 8133154983
remsBIL 8394910153
divsBIL 8489407783
isonstack 8502674360
is_recursive_t 9575536258

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