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 30657-d14c2a9e4e) Lines: 1420 1535 92.5 %
Date: 2026-01-30 09:23:18 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 11554
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 22081
gtomp 22428
RgM_fpnorml2 22662
FqXQ_mul 22766
ZV_dvd 23485
gal_get_mod 23757
FqX_neg 24956
FqX_red 25354
bnf_get_fu 25859
nfV_to_scalar_or_alg 26300
gal_get_den 27866
gal_get_invvdm 27873
absfrac_shallow 28237
gequalgs 29176
zerovec_block 29654
gener_Fq_local 29945
gal_get_roots 32731
gchar_get_basis 32816
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33545
Qtoss 35322
gal_get_pol 36315
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37079
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 37881
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 58503
RgX_fpnorml2 61601
err_get_num 62551
bid_get_gen 64273
nf_get_ramified_primes 64645
RgX_is_rational 68166
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 75641
bnr_get_mod 77119
gal_get_group 80388
mkcol3 88314
cyclic_perm 99911
gtou 100693
mkcol4 103467
zv_to_zx 104146
mkmoo 108802
zeromat 109062
RgV_isin 110144
RgV_isin_i 110144
mkvec2copy 114523
Q_abs_shallow 120213
mkmatcopy 122305
mkveccopy 122521
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138433
zeroser 138908
RgV_is_QV 140731
FqX_factor 140946
get_FpXQX_mod 146583
FlxqX_div_pre 165416
znstar_get_U 176107
rowslicepermute 185044
vecsmall_prepend 186970
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200433
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220248
mkcol6 232470
ellR_get_prec 232750
zero_Flm_copy 238237
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249621
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264420
bnr_get_no 277489
gchar_get_zm 281911
bnf_get_tuN 283001
bnf_get_fu_nocheck 289092
bnf_get_tuU 303583
nf_get_G 304908
vec_prepend 314008
get_FlxqX_degree 317565
rnf_get_polabs 327628
Flx_constant 334022
cxtoreal 337206
upr_norm 346134
RgX_renormalize 349807
abgrp_get_no 354949
ZM_hnfrem 363802
FqX_mul 367711
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384920
RgX_is_QX 399928
perm_conj 418299
FqX_Fq_mul 427299
FqX_extgcd 444772
Z_issquare 457639
nf_get_disc 463474
precdbl 475380
RgX_shift_inplace 479366
RgX_shift_inplace_init 479366
zv_to_ZV 502982
vecsmall_to_vec 511781
nf_get_sign 519550
mkvec3s 524441
gdivsg 531591
addmuliu 535673
FqX_Fp_mul 571654
prec2nbits_mul 581167
vecsmall_ei 584697
ZM_ZV_mod 596487
RgC_fpnorml2 619848
FqX_is_squarefree 683802
vecreverse 697277
mkrfrac 698439
coltrunc_init 740250
logint 754842
gcmpgs 761916
row 763894
rnf_get_nf 786086
ellff_get_a4a6 800026
zero_F2m_copy 845028
FpXX_renormalize 849917
zeropadic 855408
gmin_shallow 877822
affgr 898901
ZXQ_sqr 960259
cgetc 975459
Flx_lead 979074
polx_F2x 1078067
pr_norm 1090564
sstoQ 1097215
Fp_invsafe 1100355
Flx_mulu 1105459
vecsmall_max 1164172
mkfracss 1209563
RgV_isscalar 1210270
gen_I 1269711
RgX_is_monomial 1331368
mkoo 1331923
bnf_get_sunits 1367775
rnf_get_absdegree 1392746
bnr_get_nf 1399073
zero_Flx 1427026
constant_coeff 1441438
Rg_col_ei 1450972
inf_get_sign 1452982
vecsmall_concat 1464230
guncloneNULL_deep 1488015
nf_get_varn 1503776
bid_get_mod 1521918
F2m_flip 1553990
F2v_flip 1553990
F2x_flip 1553990
F2x_div 1570131
uutoQ 1600198
nf_get_roots 1628974
bnf_get_gen 1680298
vec_ei 1713872
mkvecsmall5 1717525
ulogint 1723846
gsubgs 1724815
nf_get_roundG 1748212
abgrp_get_gen 1765008
ellinf 1870002
modpr_get_p 1887627
get_F2x_degree 1928864
killblock 1947747
Flx_div 1998000
ellnf_get_nf 2027261
ellff_get_field 2036837
bnr_get_bid 2046093
ell_get_j 2126269
bid_get_MOD 2157259
bid_get_sprk 2157982
ZXQ_mul 2160970
zv_copy 2183704
bid_get_fact2 2201577
gc_slice 2204203
pol_xn 2249229
pari_realloc_ip 2349498
bid_get_archp 2397138
bid_get_fact 2498957
get_F2x_mod 2499414
rnf_get_degree 2506335
bnr_get_cyc 2522549
get_F2x_var 2533850
ell_get_b4 2550216
Flv_copy 2554964
mul_content 2657267
RgX_coeff 2669861
vecslicepermute 2690563
cyc_get_expo 2757548
hash_str 2760615
perm_inv 2781917
sqrtnr 2810262
zero_Flm 2829632
bnr_get_clgp 2830220
rnf_get_pol 2845192
znstar_get_pe 2869063
F2x_equal1 2874380
bnf_get_logfu 2874775
gisdouble 2996550
mkpolmod 3103724
Fq_red 3106554
bit_accuracy_mul 3175484
ZV_to_zv 3211407
identity_perm 3241652
F3m_coeff 3255864
identity_zv 3266004
znstar_get_conreygen 3290176
ell_get_b8 3297414
get_FpX_mod 3394336
vec_append 3464658
zero_F2v 3647698
bid_get_U 3680233
bnf_get_cyc 3686128
bnr_get_bnf 3710944
nf_get_index 3711395
pol_1 3755607
pol_x 3857228
ell_get_b6 3863115
mulsubii 3882066
pol1_F2x 3956492
vec_to_vecsmall 4036634
vecsmall_append 4099162
sqrfrac 4148206
vecsmall_copy 4403712
mkcol2s 4416244
F2x_equal 4666014
FpXQX_renormalize 4694388
mkmat 4750994
qfb_disc3 4995999
mkfraccopy 4999740
is_rational_t 5032643
bnf_get_clgp 5374967
nf_get_zkprimpart 5414128
nf_get_zkden 5459989
FpX_div 5581240
checkell_i 5593248
isintm1 5710198
bid_get_cyc 5739844
bid_get_grp 5804699
pari_stack_delete 5812974
col_ei 5924619
pari_stack_init 6351491
get_FpX_degree 6424437
Flm_copy 6433639
sqrti 6610253
get_FpX_var 6958024
RgX_div 7000642
vecsmall_lexcmp 7043256
ell_get_a2 7106173
ZM_lll 7117846
RgX_gtofp 7145262
znstar_get_faN 7331711
ell_get_b2 7371037
ZX_is_monic 7374244
zc_to_ZC 7824477
vecsmall_to_col 7838659
znstar_get_conreycyc 7979693
F2m_coeff 8038121
Q_abs 8062618
mkintmod 8092724
ZV_ZV_mod 8131525
RgM_gtofp 8258069
Flx_equal1 8330333
gc_INT_affii 8488046
ell_get_a4 8536714
Flm_row 8740996
ell_get_a3 8814048
ell_get_a1 8997080
cxtofp 9079138
veclast 9372695
ismpzero 9584550
is_intreal_t 9584673
const_col 9729686
RgM_dimensions 9741893
nf_get_invzk 9767554
bnf_get_nf 9865172
mkvec4 10093755
ser_isexactzero 10120284
ell_get_a6 10370952
mkcol 10639677
ZC_hnfrem 10697513
mul_denom 10707928
ell_get_c4 11017180
Fp_addmul 11279343
vectrunc_init 11766859
pr_get_gen 12071297
abgrp_get_cyc 12230780
F2v_clear 12353511
F2x_clear 12353516
ell_get_type 12498874
nbits2nlong 12750626
pol0_F2x 13241448
ell_get_c6 13474514
gmax_shallow 13510200
modpr_get_T 13867122
zeromatcopy 14250175
rowpermute 14705725
closure_get_frame 14715472
Fp_div 15035951
Fp_divu 15130392
mkvec5 15185739
vectrunc_append 15853328
pr_get_e 16161831
ell_get_disc 16815256
matslice 16819927
normalize_frac 17206216
pr_is_inert 17224129
isint1 17584841
Fp_center_i 18043441
cxcompotor 18210193
qfb_disc 18502525
mkvecsmall4 18675087
const_vecsmall 19706634
vecpermute 20546818
Fp_double 20950471
Flx_div_pre 21690750
nf_get_M 21745559
RgM_shallowcopy 22179736
RgX_is_ZX 22423418
gmulgs 22617515
Fp_inv 23440557
nf_get_r1 23466015
ZV_isscalar 23674802
get_Flx_mod 25596570
pr_get_f 26443298
RgX_equal_var 26883013
shallowcopy 27632197
mkqfb 27930128
zerovec 28453631
modpr_get_pr 31236667
Fp_neg 31475325
hash_str_len 31629746
submulii 31982591
RgV_is_ZV 32158282
mkmat2 33654597
RgC_gtofp 34032898
const_vec 34565242
zero_zv 36731281
polx_Flx 37486644
lincombii 38240066
znstar_get_N 38655073
mkfrac 41642395
zeropol 42354010
powii 43130457
is_vec_t 43978347
closure_is_variadic 45903171
absfrac 46638785
guncloneNULL 48000461
pr_get_tau 49768568
mkmat22 50287954
ell_is_inf 52425742
QV_isscalar 54416672
pol1_Flx 55056673
addmuliu_inplace 59642469
zero_Flv 59667639
submuliu_inplace 60132071
F2x_copy 60510852
gtodouble 60781732
is_real_t 62062466
qfb_is_qfi 62317381
Fp_sqr 63990909
Fp_mulu 67512190
get_Flx_var 68357687
mkvec 71229552
nf_get_degree 71370418
Fp_center 77248591
vecsmallpermute 78700743
rowslice 79324444
sqrtr 80375085
perm_mul 80895926
Fp_red 82192110
get_Flx_degree 82230293
pol_0 82996705
gtos 85855648
is_noncalc_t 85872165
cxnorm 91198906
mkcomplex 91607632
pr_get_p 92750272
dbllog2r 92818946
nf_get_pol 98109044
vecsmalltrunc_append 100881660
F2v_set 101402984
cgiv 102682908
RgX_copy 103406633
pol0_Flx 103470561
prec2nbits 103972861
mkvecsmall3 104185977
vecsmall_prefixcmp 108088071
gc_all 109637055
F2x_renormalize 115313216
mkvec3 117871663
zerocol 122335324
gaddgs 123248636
both_odd 124136295
F2x_set 124721855
nchar2nlong 127560929
mkvecsmall 131629202
equalim1 139505217
bit_prec 143259802
FpX_renormalize 144214850
ZX_renormalize 155005440
mkcol2 156915399
nbrows 157469829
leading_coeff 170223774
Flx_copy 173223854
Fp_add 181261467
mkvec2 185166992
nbits2prec 186139331
vecsmalltrunc_init 189793486
Fp_mul 200859954
Fp_sub 202701775
mkvecsmall2 234966189
gtofp 254335161
gc_GEN 255547868
gmulgu 282059384
lg_increase 315914332
closure_get_data 322152126
closure_get_oper 322179073
closure_codestr 322205789
is_universal_constant 326523591
lgcols 351611199
closure_arity 372604246
is_scalar_t 375658880
bin_copy 496065113
pari_free 509534820
is_bigint 563409341
leafcopy_avma 577359551
vecslice 655949408
is_matvec_t 659626200
F2v_coeff 661317425
F2x_coeff 667803619
pari_malloc 745493854
pari_stack_new 926955333
GENbinbase 961914250
pari_stack_alloc 1022206484
pari_stack_base 1028018014
gc_leaf 1136836888
equali1 1174293293
nbits2extraprec 1458527426
gc_upto 1954598887
odd 2090488975
is_pm1 2205116692
lgpol 2687987302
isintzero 2844796104
bit_accuracy 3160117499
gc_INT 4112101652
prec2lg 4470065739
is_const_t 4899839853
degpol 5492798980
remsBIL 8003609339
icopy_avma 8040547931
divsBIL 8094727543
isonstack 8275744351
is_recursive_t 9238327353

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