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 30610-dfc8ed42cd) Lines: 1420 1535 92.5 %
Date: 2026-01-14 09:22:13 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 8038159
F2m_copy 200482
F2m_flip 1553948
F2m_set 798
F2v_clear 12353492
F2v_coeff 661317843
F2v_copy 4487
F2v_ei 42
F2v_flip 1553948
F2v_set 101403004
F2v_to_F2x 37880
F2xX_shift 0
F2x_clear 12353502
F2x_coeff 667895468
F2x_copy 60440567
F2x_div 1570262
F2x_equal 4661913
F2x_equal1 2874032
F2x_flip 1553948
F2x_renormalize 115270593
F2x_set 124756833
F2xqX_div 33173
F3m_coeff 3255911
F3m_copy 0
F3m_set 0
Flm_copy 6433366
Flm_row 8740423
Flv_copy 2555040
Flx_constant 334010
Flx_copy 173155461
Flx_div 1997960
Flx_div_pre 21686174
Flx_equal1 8329850
Flx_lead 978661
Flx_mulu 1105354
FlxqX_div 0
FlxqX_div_pre 165415
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4693909
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581146
FpX_renormalize 144203346
Fp_add 181106047
Fp_addmul 11274552
Fp_center 77159460
Fp_center_i 18020391
Fp_div 15035688
Fp_divu 15130187
Fp_double 20871274
Fp_halve 247271
Fp_inv 23440510
Fp_invsafe 1100353
Fp_mul 200804116
Fp_muls 17780
Fp_mulu 68699191
Fp_neg 31479183
Fp_red 82193041
Fp_sqr 63557441
Fp_sub 202551084
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 571423
FqX_Fq_mul 427287
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38567
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444663
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 367705
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 3106235
Fq_to_FpXQ 73652
GENbinbase 961882706
QV_isscalar 54415602
Q_abs 8062629
Q_abs_shallow 120226
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619847
RgC_gtofp 34029694
RgC_gtomp 574
RgM_dimensions 9741418
RgM_fpnorml2 22661
RgM_gtofp 8258017
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22178953
RgV_gtofp 56
RgV_is_QV 140731
RgV_is_ZV 32158277
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210272
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406613
RgX_div 7000641
RgX_equal_var 26883007
RgX_fpnorml2 61496
RgX_gtofp 7144685
RgX_is_QX 399939
RgX_is_ZX 22423121
RgX_is_monomial 1331325
RgX_is_rational 68162
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479366
RgX_shift_inplace_init 479366
RgX_to_RgV 140
Rg_col_ei 1451062
Rg_to_Fq 756
ZC_hnfrem 10697390
ZM_ZV_mod 596460
ZM_hnfrem 363779
ZM_lll 7117790
ZV_ZV_mod 8131431
ZV_dvd 23485
ZV_isscalar 23674864
ZV_to_zv 3211408
ZXQ_mul 2161286
ZXQ_sqr 960435
ZX_equal1 12850
ZX_is_monic 7374325
ZX_renormalize 154960422
Z_ispower 98
Z_issquare 458706
abgrp_get_cyc 12230770
abgrp_get_gen 1765018
abgrp_get_no 354944
absfrac 46638771
absfrac_shallow 28237
addmuliu 535763
addmuliu_inplace 59706439
affc_fixlg 249621
affgr 898866
bid_get_MOD 2157238
bid_get_U 3680217
bid_get_arch 41188
bid_get_archp 2397103
bid_get_cyc 5739815
bid_get_fact 2498925
bid_get_fact2 2201562
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804667
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157969
bin_copy 496048939
bit_accuracy 3159572048
bit_accuracy_mul 3175472
bit_prec 143235821
bnf_get_clgp 5375000
bnf_get_cyc 3686150
bnf_get_fu 25859
bnf_get_fu_nocheck 289078
bnf_get_gen 1680304
bnf_get_logfu 2874759
bnf_get_nf 9865170
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367773
bnf_get_tuN 282992
bnf_get_tuU 303571
bnr_get_bid 2046088
bnr_get_bnf 3710948
bnr_get_clgp 2830223
bnr_get_cyc 2522549
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399066
bnr_get_no 277460
both_odd 124197767
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975459
cgiv 102676028
checkell_i 5593245
closure_arity 371425706
closure_codestr 321585966
closure_get_code 0
closure_get_data 321535004
closure_get_dbg 13628
closure_get_frame 14158129
closure_get_oper 321560822
closure_get_text 37065
closure_is_variadic 44790332
col_ei 5924525
coltrunc_init 740250
const_col 9729651
const_vec 34477826
const_vecsmall 19705815
constant_coeff 1441154
cxcompotor 18210815
cxnorm 91197035
cxtofp 9079489
cxtoreal 337206
cyc_get_expo 2757548
cyclic_perm 99911
dbllog2r 92813581
degpol 5497414868
div_content 58504
divsBIL 8090798875
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997092
ell_get_a2 7106183
ell_get_a3 8814059
ell_get_a4 8536724
ell_get_a6 10370962
ell_get_b2 7371038
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017965
ell_get_c6 13474423
ell_get_disc 16815331
ell_get_j 2126269
ell_get_type 12498840
ell_is_inf 52328499
ellff_get_a4a6 800040
ellff_get_field 2036871
ellinf 1870004
ellnf_get_bnf 119
ellnf_get_nf 2027252
equali1 1174324737
equalim1 139505385
err_get_compo 294
err_get_num 62537
gaddgs 123248600
gal_get_den 27867
gal_get_e 91
gal_get_gen 15435
gal_get_group 80386
gal_get_invvdm 27874
gal_get_mod 23758
gal_get_orders 6678
gal_get_p 6006
gal_get_pol 36316
gal_get_roots 32732
gc_GEN 255513435
gc_INT 4111165483
gc_INT_affii 8486449
gc_all 109637266
gc_leaf 1138648136
gc_slice 2204095
gc_upto 1953466090
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 761923
gdivsg 531591
gen_I 1269703
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928993
get_F2x_mod 2499189
get_F2x_var 2533936
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82835159
get_Flx_mod 25594556
get_Flx_var 68347588
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 6424524
get_FpX_mod 3394355
get_FpX_var 6957807
gisdouble 2995744
gmax_shallow 13510199
gmaxsg 0
gmin_shallow 877673
gminsg 0
gmulgs 22551910
gmulgu 282059385
gsubgs 1724803
gtodouble 60778740
gtofp 254304041
gtomp 22428
gtos 85855672
gtou 99542
guncloneNULL 47923581
guncloneNULL_deep 1427466
gval 6230
hash_str 2756815
hash_str_len 31544807
icopy_avma 8039767527
idealchineseinit 5427
idealred 138434
identity_ZV 8113
identity_perm 3241132
identity_zv 3265483
inf_get_sign 1452886
inv_content 0
is_bigint 563362505
is_const_t 4897413713
is_extscalar_t 6876
is_intreal_t 9584485
is_matvec_t 659517946
is_noncalc_t 85871500
is_pm1 2205756014
is_qfb_t 0
is_rational_t 5032454
is_real_t 62062466
is_recursive_t 9234129287
is_scalar_t 375656539
is_universal_constant 325873088
is_vec_t 43948366
isint1 17584733
isintm1 5710100
isintzero 2843379861
ismpzero 9584373
isonstack 8273907204
killblock 1917002
leading_coeff 170257919
leafcopy_avma 577113252
lg_increase 317345184
lgcols 351580338
lgpol 2689375665
lincombii 38218568
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 754841
matpascal 3983
matslice 16818246
mkcol 10639630
mkcol2 156890536
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33553
mkcols 40411
mkcomplex 91605693
mkerr 0
mkfrac 41635886
mkfraccopy 4999714
mkfracss 1209563
mkintmod 8092786
mkintmodu 1813
mkmat 4750765
mkmat2 33655303
mkmat22 50283249
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122284
mkmoo 108796
mkoo 1331838
mkpadic 2009
mkpolmod 3103727
mkqfb 27930389
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71145970
mkvec2 185331170
mkvec2copy 114527
mkvec2s 220247
mkvec3 119554431
mkvec3s 524441
mkvec4 10093806
mkvec4s 21
mkvec5 15185650
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131631820
mkvecsmall2 234817356
mkvecsmall3 104171256
mkvecsmall4 18653054
mkvecsmall5 1717470
modpr_get_T 13867200
modpr_get_p 1887625
modpr_get_pr 31236731
mul_content 2657085
mul_denom 10707615
mulsubii 3881282
nbits2extraprec 1457847535
nbits2ndec 228
nbits2nlong 12748544
nbits2prec 186109789
nbrows 157456802
nchar2nlong 127387320
ndec2nbits 8270
ndec2nlong 41549
ndec2prec 33279
nfV_to_scalar_or_alg 26299
nf_get_G 304868
nf_get_M 21745624
nf_get_Tr 22079
nf_get_degree 71369383
nf_get_diff 4445
nf_get_disc 463482
nf_get_index 3711382
nf_get_invzk 9767394
nf_get_pol 98107028
nf_get_r1 23465996
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628933
nf_get_roundG 1748171
nf_get_sign 519551
nf_get_varn 1503590
nf_get_zk 4382
nf_get_zkden 5459718
nf_get_zkprimpart 5413920
normalize_frac 17205766
odd 2089064522
pari_calloc 47720
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 84
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 509441364
pari_malloc 745345611
pari_realloc 1890
pari_realloc_ip 2256503
pari_stack_alloc 1019635576
pari_stack_base 1025122963
pari_stack_delete 5556766
pari_stack_init 6051557
pari_stack_new 924945644
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781749
perm_mul 80884401
perm_sqr 728
pol0_F2x 13243770
pol0_Flx 103473534
pol1_F2x 3957273
pol1_Flx 55050971
pol_0 82996576
pol_1 3755726
pol_x 3856870
pol_xn 2249279
pol_xnall 294
polx_F2x 1078189
polx_Flx 37483139
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130387
pr_get_e 16161726
pr_get_f 26442575
pr_get_gen 12070918
pr_get_p 92749594
pr_get_tau 49767461
pr_is_inert 17223717
pr_norm 1090493
prec2lg 4467750029
prec2nbits 103960641
prec2nbits_mul 581165
prec2ndec 9778
precdbl 475365
qfb_disc 18502461
qfb_disc3 4996149
qfb_is_qfi 62320780
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8000082882
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 763899
row_i 987
rowcopy 204988
rowpermute 14704446
rowslice 79293401
rowslicepermute 184971
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27630952
sqrfrac 4148158
sqrti 6610136
sqrtnr 2810114
sqrtr 80369045
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60196279
truecoef 0
trunc_safe 0
ulogint 1717753
upr_norm 346134
uutoQ 1600198
vec_append 3465048
vec_ei 1713851
vec_lengthen 18960
vec_prepend 313999
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036607
veclast 9372700
vecmodii 0
vecmoduu 49784
vecpermute 20546559
vecreverse 697277
vecreverse_inplace 2605
vecslice 655741285
vecslicepermute 2689883
vecsmall_append 4099588
vecsmall_coincidence 0
vecsmall_concat 1464131
vecsmall_copy 4403881
vecsmall_ei 584692
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043231
vecsmall_max 1164139
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75641
vecsmall_to_col 7838573
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78688985
vecsmalltrunc_append 100892425
vecsmalltrunc_init 190064006
vecsplice 384919
vectrunc_append 15849658
vectrunc_append_batch 9667
vectrunc_init 11766044
zc_to_ZC 7824396
zero_F2m 0
zero_F2m_copy 845041
zero_F2v 3647700
zero_F2x 1350
zero_Flm 2829090
zero_Flm_copy 238230
zero_Flv 59669842
zero_Flx 1426896
zero_zm 0
zero_zv 36731955
zero_zx 0
zerocol 122327676
zeromat 109057
zeromatcopy 14250037
zeropadic 855578
zeropadic_shallow 17024
zeropol 42353865
zeroser 138908
zerovec 28453483
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 2183779
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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