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
F2m_coeff 8038121
F2m_copy 200433
F2m_flip 1553990
F2m_set 798
F2v_clear 12353511
F2v_coeff 661317425
F2v_copy 4487
F2v_ei 42
F2v_flip 1553990
F2v_set 101402984
F2v_to_F2x 37881
F2xX_shift 0
F2x_clear 12353516
F2x_coeff 667803619
F2x_copy 60510852
F2x_div 1570131
F2x_equal 4666014
F2x_equal1 2874380
F2x_flip 1553990
F2x_renormalize 115313216
F2x_set 124721855
F2xqX_div 33173
F3m_coeff 3255864
F3m_copy 0
F3m_set 0
Flm_copy 6433639
Flm_row 8740996
Flv_copy 2554964
Flx_constant 334022
Flx_copy 173223854
Flx_div 1998000
Flx_div_pre 21690750
Flx_equal1 8330333
Flx_lead 979074
Flx_mulu 1105459
FlxqX_div 0
FlxqX_div_pre 165416
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694388
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581240
FpX_renormalize 144214850
Fp_add 181261467
Fp_addmul 11279343
Fp_center 77248591
Fp_center_i 18043441
Fp_div 15035951
Fp_divu 15130392
Fp_double 20950471
Fp_halve 247271
Fp_inv 23440557
Fp_invsafe 1100355
Fp_mul 200859954
Fp_muls 17780
Fp_mulu 67512190
Fp_neg 31475325
Fp_red 82192110
Fp_sqr 63990909
Fp_sub 202701775
FqXQ_add 0
FqXQ_div 0
FqXQ_inv 0
FqXQ_invsafe 0
FqXQ_mul 22766
FqXQ_pow 0
FqXQ_sqr 0
FqXQ_sub 0
FqX_Fp_mul 571654
FqX_Fq_mul 427299
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38568
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444772
FqX_factor 140946
FqX_factor_squarefree 7
FqX_gcd 8288
FqX_get_red 6090
FqX_halfgcd 0
FqX_halve 19411
FqX_integ 0
FqX_is_squarefree 683802
FqX_mul 367711
FqX_mulu 21942
FqX_neg 24956
FqX_normalize 4144
FqX_powu 1295
FqX_red 25354
FqX_rem 37743
FqX_roots 7273
FqX_sqr 71855
FqX_sub 68607
FqX_to_mod 175
FqXn_exp 0
FqXn_expint 6590
FqXn_inv 7126
FqXn_mul 263403
FqXn_sqr 0
Fq_red 3106554
Fq_to_FpXQ 73652
GENbinbase 961914250
QV_isscalar 54416672
Q_abs 8062618
Q_abs_shallow 120213
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619848
RgC_gtofp 34032898
RgC_gtomp 574
RgM_dimensions 9741893
RgM_fpnorml2 22662
RgM_gtofp 8258069
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179736
RgV_gtofp 56
RgV_is_QV 140731
RgV_is_ZV 32158282
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210270
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406633
RgX_div 7000642
RgX_equal_var 26883013
RgX_fpnorml2 61601
RgX_gtofp 7145262
RgX_is_QX 399928
RgX_is_ZX 22423418
RgX_is_monomial 1331368
RgX_is_rational 68166
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479366
RgX_shift_inplace_init 479366
RgX_to_RgV 140
Rg_col_ei 1450972
Rg_to_Fq 756
ZC_hnfrem 10697513
ZM_ZV_mod 596487
ZM_hnfrem 363802
ZM_lll 7117846
ZV_ZV_mod 8131525
ZV_dvd 23485
ZV_isscalar 23674802
ZV_to_zv 3211407
ZXQ_mul 2160970
ZXQ_sqr 960259
ZX_equal1 12850
ZX_is_monic 7374244
ZX_renormalize 155005440
Z_ispower 98
Z_issquare 457639
abgrp_get_cyc 12230780
abgrp_get_gen 1765008
abgrp_get_no 354949
absfrac 46638785
absfrac_shallow 28237
addmuliu 535673
addmuliu_inplace 59642469
affc_fixlg 249621
affgr 898901
bid_get_MOD 2157259
bid_get_U 3680233
bid_get_arch 41188
bid_get_archp 2397138
bid_get_cyc 5739844
bid_get_fact 2498957
bid_get_fact2 2201577
bid_get_gen 64273
bid_get_gen_nocheck 0
bid_get_grp 5804699
bid_get_ideal 72842
bid_get_mod 1521918
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157982
bin_copy 496065113
bit_accuracy 3160117499
bit_accuracy_mul 3175484
bit_prec 143259802
bnf_get_clgp 5374967
bnf_get_cyc 3686128
bnf_get_fu 25859
bnf_get_fu_nocheck 289092
bnf_get_gen 1680298
bnf_get_logfu 2874775
bnf_get_nf 9865172
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367775
bnf_get_tuN 283001
bnf_get_tuU 303583
bnr_get_bid 2046093
bnr_get_bnf 3710944
bnr_get_clgp 2830220
bnr_get_cyc 2522549
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399073
bnr_get_no 277489
both_odd 124136295
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975459
cgiv 102682908
checkell_i 5593248
closure_arity 372604246
closure_codestr 322205789
closure_get_code 0
closure_get_data 322152126
closure_get_dbg 13635
closure_get_frame 14715472
closure_get_oper 322179073
closure_get_text 37079
closure_is_variadic 45903171
col_ei 5924619
coltrunc_init 740250
const_col 9729686
const_vec 34565242
const_vecsmall 19706634
constant_coeff 1441438
cxcompotor 18210193
cxnorm 91198906
cxtofp 9079138
cxtoreal 337206
cyc_get_expo 2757548
cyclic_perm 99911
dbllog2r 92818946
degpol 5492798980
div_content 58503
divsBIL 8094727543
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997080
ell_get_a2 7106173
ell_get_a3 8814048
ell_get_a4 8536714
ell_get_a6 10370952
ell_get_b2 7371037
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017180
ell_get_c6 13474514
ell_get_disc 16815256
ell_get_j 2126269
ell_get_type 12498874
ell_is_inf 52425742
ellff_get_a4a6 800026
ellff_get_field 2036837
ellinf 1870002
ellnf_get_bnf 119
ellnf_get_nf 2027261
equali1 1174293293
equalim1 139505217
err_get_compo 294
err_get_num 62551
gaddgs 123248636
gal_get_den 27866
gal_get_e 91
gal_get_gen 15435
gal_get_group 80388
gal_get_invvdm 27873
gal_get_mod 23757
gal_get_orders 6678
gal_get_p 6006
gal_get_pol 36315
gal_get_roots 32731
gc_GEN 255547868
gc_INT 4112101652
gc_INT_affii 8488046
gc_all 109637055
gc_leaf 1136836888
gc_slice 2204203
gc_upto 1954598887
gchar_copy_precs 1225
gchar_get_DLdata 190673
gchar_get_S 36995
gchar_get_U 0
gchar_get_Ui 10983
gchar_get_basis 32816
gchar_get_bnf 205373
gchar_get_cyc 16177
gchar_get_evalprec 4011
gchar_get_hnf 0
gchar_get_loccyc 50519
gchar_get_m0 3318
gchar_get_mod 8225
gchar_get_modP 4095
gchar_get_nalg 2044
gchar_get_nc 37261
gchar_get_nf 243946
gchar_get_nfprec 13468
gchar_get_nfree 322
gchar_get_nm 1869
gchar_get_ns 36995
gchar_get_ntors 322
gchar_get_prec 18795
gchar_get_r1 17444
gchar_get_r2 623
gchar_get_sfu 1743
gchar_get_u0 4252
gchar_get_zm 281911
gchar_set_HUUi 630
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_set_evalprec 1813
gchar_set_m0 945
gchar_set_nalg 630
gchar_set_nf 2110
gchar_set_nfprec 2968
gchar_set_nfree 630
gchar_set_ntors 630
gchar_set_prec 1225
gchar_set_u0 2121
gcmpgs 761916
gdivsg 531591
gen_I 1269711
gener_Fq_local 29945
gequalgs 29176
get_F2x_degree 1928864
get_F2x_mod 2499414
get_F2x_var 2533850
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82230293
get_Flx_mod 25596570
get_Flx_var 68357687
get_FlxqX_degree 317565
get_FlxqX_mod 8033
get_FlxqX_var 264420
get_FpXQX_degree 3589
get_FpXQX_mod 146583
get_FpXQX_var 51630
get_FpX_degree 6424437
get_FpX_mod 3394336
get_FpX_var 6958024
gisdouble 2996550
gmax_shallow 13510200
gmaxsg 0
gmin_shallow 877822
gminsg 0
gmulgs 22617515
gmulgu 282059384
gsubgs 1724815
gtodouble 60781732
gtofp 254335161
gtomp 22428
gtos 85855648
gtou 100693
guncloneNULL 48000461
guncloneNULL_deep 1488015
gval 6230
hash_str 2760615
hash_str_len 31629746
icopy_avma 8040547931
idealchineseinit 5427
idealred 138433
identity_ZV 8113
identity_perm 3241652
identity_zv 3266004
inf_get_sign 1452982
inv_content 0
is_bigint 563409341
is_const_t 4899839853
is_extscalar_t 6876
is_intreal_t 9584673
is_matvec_t 659626200
is_noncalc_t 85872165
is_pm1 2205116692
is_qfb_t 0
is_rational_t 5032643
is_real_t 62062466
is_recursive_t 9238327353
is_scalar_t 375658880
is_universal_constant 326523591
is_vec_t 43978347
isint1 17584841
isintm1 5710198
isintzero 2844796104
ismpzero 9584550
isonstack 8275744351
killblock 1947747
leading_coeff 170223774
leafcopy_avma 577359551
lg_increase 315914332
lgcols 351611199
lgpol 2687987302
lincombii 38240066
locs_get_Lgenfil 1288
locs_get_Lsprk 193935
locs_get_cyc 52136
locs_get_famod 1288
locs_get_m_infty 209475
locs_get_mod 8225
logint 754842
matpascal 3983
matslice 16819927
mkcol 10639677
mkcol2 156915399
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33545
mkcols 40411
mkcomplex 91607632
mkerr 0
mkfrac 41642395
mkfraccopy 4999740
mkfracss 1209563
mkintmod 8092724
mkintmodu 1813
mkmat 4750994
mkmat2 33654597
mkmat22 50287954
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122305
mkmoo 108802
mkoo 1331923
mkpadic 2009
mkpolmod 3103724
mkqfb 27930128
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71229552
mkvec2 185166992
mkvec2copy 114523
mkvec2s 220248
mkvec3 117871663
mkvec3s 524441
mkvec4 10093755
mkvec4s 21
mkvec5 15185739
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131629202
mkvecsmall2 234966189
mkvecsmall3 104185977
mkvecsmall4 18675087
mkvecsmall5 1717525
modpr_get_T 13867122
modpr_get_p 1887627
modpr_get_pr 31236667
mul_content 2657267
mul_denom 10707928
mulsubii 3882066
nbits2extraprec 1458527426
nbits2ndec 228
nbits2nlong 12750626
nbits2prec 186139331
nbrows 157469829
nchar2nlong 127560929
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304908
nf_get_M 21745559
nf_get_Tr 22081
nf_get_degree 71370418
nf_get_diff 4445
nf_get_disc 463474
nf_get_index 3711395
nf_get_invzk 9767554
nf_get_pol 98109044
nf_get_r1 23466015
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628974
nf_get_roundG 1748212
nf_get_sign 519550
nf_get_varn 1503776
nf_get_zk 4382
nf_get_zkden 5459989
nf_get_zkprimpart 5414128
normalize_frac 17206216
odd 2090488975
pari_calloc 47720
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
pari_err_DIM 718
pari_err_DOMAIN 2862
pari_err_FILE 0
pari_err_FILEDESC 36
pari_err_FLAG 98
pari_err_IMPL 539
pari_err_INV 20018
pari_err_IRREDPOL 63
pari_err_MAXPRIME 0
pari_err_MODULUS 1316
pari_err_OP 406
pari_err_OVERFLOW 156
pari_err_PACKAGE 0
pari_err_PREC 238
pari_err_PRIME 98
pari_err_PRIORITY 245
pari_err_ROOTS0 63
pari_err_SQRTN 7084
pari_err_TYPE 15370
pari_err_TYPE2 3493
pari_err_VAR 371
pari_free 509534820
pari_malloc 745493854
pari_realloc 1890
pari_realloc_ip 2349498
pari_stack_alloc 1022206484
pari_stack_base 1028018014
pari_stack_delete 5812974
pari_stack_init 6351491
pari_stack_new 926955333
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781917
perm_mul 80895926
perm_sqr 728
pol0_F2x 13241448
pol0_Flx 103470561
pol1_F2x 3956492
pol1_Flx 55056673
pol_0 82996705
pol_1 3755607
pol_x 3857228
pol_xn 2249229
pol_xnall 294
polx_F2x 1078067
polx_Flx 37486644
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130457
pr_get_e 16161831
pr_get_f 26443298
pr_get_gen 12071297
pr_get_p 92750272
pr_get_tau 49768568
pr_is_inert 17224129
pr_norm 1090564
prec2lg 4470065739
prec2nbits 103972861
prec2nbits_mul 581167
prec2ndec 9778
precdbl 475380
qfb_disc 18502525
qfb_disc3 4995999
qfb_is_qfi 62317381
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8003609339
rnf_get_absdegree 1392746
rnf_get_alpha 1428
rnf_get_degree 2506335
rnf_get_disc 357
rnf_get_idealdisc 1386
rnf_get_index 105
rnf_get_invzk 1225
rnf_get_k 1225
rnf_get_map 135659
rnf_get_nf 786086
rnf_get_nfdegree 21455
rnf_get_nfpol 255354
rnf_get_nfvarn 4886
rnf_get_nfzk 7245
rnf_get_pol 2845192
rnf_get_polabs 327628
rnf_get_ramified_primes 2849
rnf_get_varn 574
rnf_get_zk 4830
row 763894
row_i 987
rowcopy 204988
rowpermute 14705725
rowslice 79324444
rowslicepermute 185044
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27632197
sqrfrac 4148206
sqrti 6610253
sqrtnr 2810262
sqrtr 80375085
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60132071
truecoef 0
trunc_safe 0
ulogint 1723846
upr_norm 346134
uutoQ 1600198
vec_append 3464658
vec_ei 1713872
vec_lengthen 18960
vec_prepend 314008
vec_setconst 0
vec_shorten 11554
vec_to_vecsmall 4036634
veclast 9372695
vecmodii 0
vecmoduu 49784
vecpermute 20546818
vecreverse 697277
vecreverse_inplace 2605
vecslice 655949408
vecslicepermute 2690563
vecsmall_append 4099162
vecsmall_coincidence 0
vecsmall_concat 1464230
vecsmall_copy 4403712
vecsmall_ei 584697
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043256
vecsmall_max 1164172
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75641
vecsmall_to_col 7838659
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78700743
vecsmalltrunc_append 100881660
vecsmalltrunc_init 189793486
vecsplice 384920
vectrunc_append 15853328
vectrunc_append_batch 9667
vectrunc_init 11766859
zc_to_ZC 7824477
zero_F2m 0
zero_F2m_copy 845028
zero_F2v 3647698
zero_F2x 1350
zero_Flm 2829632
zero_Flm_copy 238237
zero_Flv 59667639
zero_Flx 1427026
zero_zm 0
zero_zv 36731281
zero_zx 0
zerocol 122335324
zeromat 109062
zeromatcopy 14250175
zeropadic 855408
zeropadic_shallow 17024
zeropol 42354010
zeroser 138908
zerovec 28453631
zerovec_block 29654
zm_copy 0
zm_row 0
zm_to_zxV 0
zm_transpose 266
znstar_get_N 38655073
znstar_get_U 176107
znstar_get_Ui 46788
znstar_get_conreycyc 7979693
znstar_get_conreygen 3290176
znstar_get_cyc 262088
znstar_get_faN 7331711
znstar_get_gen 16150
znstar_get_no 14
znstar_get_pe 2869063
zv_copy 2183704
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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