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 30608-ad1edb9ceb) Lines: 1420 1535 92.5 %
Date: 2026-01-13 09:22:00 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 8038928
F2m_copy 200479
F2m_flip 1554315
F2m_set 798
F2v_clear 12354054
F2v_coeff 661322265
F2v_copy 4487
F2v_ei 42
F2v_flip 1554315
F2v_set 101403732
F2v_to_F2x 37851
F2xX_shift 0
F2x_clear 12354054
F2x_coeff 667879627
F2x_copy 60464948
F2x_div 1571107
F2x_equal 4664729
F2x_equal1 2873982
F2x_flip 1554315
F2x_renormalize 115285163
F2x_set 124756298
F2xqX_div 33173
F3m_coeff 3255869
F3m_copy 0
F3m_set 0
Flm_copy 6433418
Flm_row 8741078
Flv_copy 2554963
Flx_constant 333997
Flx_copy 173185808
Flx_div 1997936
Flx_div_pre 21688682
Flx_equal1 8329822
Flx_lead 978701
Flx_mulu 1105405
FlxqX_div 0
FlxqX_div_pre 165418
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694457
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581176
FpX_renormalize 144210898
Fp_add 180959508
Fp_addmul 11228461
Fp_center 77127140
Fp_center_i 18005570
Fp_div 15034224
Fp_divu 15128663
Fp_double 20799256
Fp_halve 247271
Fp_inv 23440607
Fp_invsafe 1100329
Fp_mul 200711745
Fp_muls 17780
Fp_mulu 68110254
Fp_neg 31478287
Fp_red 82193541
Fp_sqr 63352306
Fp_sub 202385627
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 571446
FqX_Fq_mul 427289
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 444665
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 367701
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 3106232
Fq_to_FpXQ 73652
GENbinbase 961891950
QV_isscalar 54416698
Q_abs 8062651
Q_abs_shallow 120218
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619858
RgC_gtofp 34032589
RgC_gtomp 574
RgM_dimensions 9741704
RgM_fpnorml2 22662
RgM_gtofp 8258198
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179180
RgV_gtofp 56
RgV_is_QV 140731
RgV_is_ZV 32158274
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210273
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406739
RgX_div 7000642
RgX_equal_var 26883012
RgX_fpnorml2 61496
RgX_gtofp 7144724
RgX_is_QX 399938
RgX_is_ZX 22423199
RgX_is_monomial 1331332
RgX_is_rational 68165
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479366
RgX_shift_inplace_init 479366
RgX_to_RgV 140
Rg_col_ei 1450994
Rg_to_Fq 756
ZC_hnfrem 10697522
ZM_ZV_mod 596472
ZM_hnfrem 363774
ZM_lll 7117879
ZV_ZV_mod 8131488
ZV_dvd 23485
ZV_isscalar 23674921
ZV_to_zv 3211407
ZXQ_mul 2161164
ZXQ_sqr 960341
ZX_equal1 12850
ZX_is_monic 7374298
ZX_renormalize 154959575
Z_ispower 98
Z_issquare 458711
abgrp_get_cyc 12230687
abgrp_get_gen 1765028
abgrp_get_no 354949
absfrac 46638735
absfrac_shallow 28237
addmuliu 535745
addmuliu_inplace 59648853
affc_fixlg 249623
affgr 898866
bid_get_MOD 2157249
bid_get_U 3680228
bid_get_arch 41188
bid_get_archp 2397110
bid_get_cyc 5739823
bid_get_fact 2498941
bid_get_fact2 2201433
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804673
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157972
bin_copy 496052935
bit_accuracy 3159780812
bit_accuracy_mul 3175472
bit_prec 143251943
bnf_get_clgp 5375008
bnf_get_cyc 3686151
bnf_get_fu 25859
bnf_get_fu_nocheck 289072
bnf_get_gen 1680312
bnf_get_logfu 2874744
bnf_get_nf 9865152
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367775
bnf_get_tuN 282992
bnf_get_tuU 303574
bnr_get_bid 2046084
bnr_get_bnf 3710942
bnr_get_clgp 2830249
bnr_get_cyc 2522569
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399076
bnr_get_no 277490
both_odd 123859825
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975460
cgiv 102680114
checkell_i 5593241
closure_arity 371392958
closure_codestr 321532668
closure_get_code 0
closure_get_data 321491490
closure_get_dbg 13628
closure_get_frame 14158181
closure_get_oper 321518206
closure_get_text 37065
closure_is_variadic 44789782
col_ei 5924573
coltrunc_init 740250
const_col 9729689
const_vec 34477894
const_vecsmall 19705893
constant_coeff 1441131
cxcompotor 18208493
cxnorm 91197557
cxtofp 9078335
cxtoreal 337207
cyc_get_expo 2757541
cyclic_perm 99911
dbllog2r 92813821
degpol 5493598258
div_content 58505
divsBIL 8091380303
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997076
ell_get_a2 7106181
ell_get_a3 8814045
ell_get_a4 8536722
ell_get_a6 10370960
ell_get_b2 7371026
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017576
ell_get_c6 13473980
ell_get_disc 16814408
ell_get_j 2126269
ell_get_type 12498772
ell_is_inf 52370207
ellff_get_a4a6 800024
ellff_get_field 2036851
ellinf 1870092
ellnf_get_bnf 119
ellnf_get_nf 2027226
equali1 1174352296
equalim1 139505114
err_get_compo 294
err_get_num 62536
gaddgs 123248641
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 255440431
gc_INT 4111170590
gc_INT_affii 8487986
gc_all 109637719
gc_leaf 1137933208
gc_slice 2203986
gc_upto 1953547838
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 761919
gdivsg 531589
gen_I 1269731
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928996
get_F2x_mod 2499159
get_F2x_var 2533895
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82584841
get_Flx_mod 25594622
get_Flx_var 68349037
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 6424489
get_FpX_mod 3394355
get_FpX_var 6958041
gisdouble 2996460
gmax_shallow 13510199
gmaxsg 0
gmin_shallow 877656
gminsg 0
gmulgs 22622419
gmulgu 282059385
gsubgs 1724807
gtodouble 60776271
gtofp 254322137
gtomp 22428
gtos 85855723
gtou 99527
guncloneNULL 47930616
guncloneNULL_deep 1434240
gval 6230
hash_str 2756813
hash_str_len 31544927
icopy_avma 8039785516
idealchineseinit 5427
idealred 138443
identity_ZV 8113
identity_perm 3241559
identity_zv 3265909
inf_get_sign 1452945
inv_content 0
is_bigint 563402749
is_const_t 4897770100
is_extscalar_t 6876
is_intreal_t 9584714
is_matvec_t 659489881
is_noncalc_t 85871940
is_pm1 2205615740
is_qfb_t 0
is_rational_t 5032488
is_real_t 62062464
is_recursive_t 9234409690
is_scalar_t 375657494
is_universal_constant 325796541
is_vec_t 43946158
isint1 17584762
isintm1 5710143
isintzero 2844068270
ismpzero 9584611
isonstack 8273196609
killblock 1918753
leading_coeff 170261382
leafcopy_avma 577281178
lg_increase 316893500
lgcols 351591077
lgpol 2688310582
lincombii 38238504
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 754825
matpascal 3983
matslice 16819273
mkcol 10639688
mkcol2 156875044
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33558
mkcols 40411
mkcomplex 91602489
mkerr 0
mkfrac 41640441
mkfraccopy 4999688
mkfracss 1209563
mkintmod 8092581
mkintmodu 1813
mkmat 4750918
mkmat2 33654193
mkmat22 50281248
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122277
mkmoo 108794
mkoo 1331892
mkpadic 2009
mkpolmod 3103727
mkqfb 27930193
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71077429
mkvec2 185235079
mkvec2copy 114529
mkvec2s 220248
mkvec3 118783873
mkvec3s 524441
mkvec4 10093808
mkvec4s 21
mkvec5 15185696
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131643319
mkvecsmall2 234841353
mkvecsmall3 104172640
mkvecsmall4 18654218
mkvecsmall5 1717522
modpr_get_T 13867153
modpr_get_p 1887627
modpr_get_pr 31236633
mul_content 2657126
mul_denom 10707913
mulsubii 3881735
nbits2extraprec 1457797933
nbits2ndec 228
nbits2nlong 12748476
nbits2prec 186128458
nbrows 157468395
nchar2nlong 127392139
ndec2nbits 8270
ndec2nlong 41549
ndec2prec 33279
nfV_to_scalar_or_alg 26300
nf_get_G 304868
nf_get_M 21745662
nf_get_Tr 22079
nf_get_degree 71370066
nf_get_diff 4445
nf_get_disc 463478
nf_get_index 3711388
nf_get_invzk 9767418
nf_get_pol 98108563
nf_get_r1 23466094
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628924
nf_get_roundG 1748181
nf_get_sign 519552
nf_get_varn 1503550
nf_get_zk 4382
nf_get_zkden 5459823
nf_get_zkprimpart 5414003
normalize_frac 17206052
odd 2088951639
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 509454827
pari_malloc 745356065
pari_realloc 1890
pari_realloc_ip 2254878
pari_stack_alloc 1019589714
pari_stack_base 1025104026
pari_stack_delete 5577787
pari_stack_init 6051368
pari_stack_new 924900860
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781937
perm_mul 80887342
perm_sqr 728
pol0_F2x 13246174
pol0_Flx 103481517
pol1_F2x 3956981
pol1_Flx 55052069
pol_0 82996678
pol_1 3755666
pol_x 3856887
pol_xn 2249294
pol_xnall 294
polx_F2x 1078475
polx_Flx 37484188
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130346
pr_get_e 16162049
pr_get_f 26442970
pr_get_gen 12071141
pr_get_p 92750652
pr_get_tau 49768494
pr_is_inert 17224044
pr_norm 1090458
prec2lg 4468271634
prec2nbits 103961139
prec2nbits_mul 581165
prec2ndec 9778
precdbl 475373
qfb_disc 18502484
qfb_disc3 4996034
qfb_is_qfi 62321917
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8000711001
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 763892
row_i 987
rowcopy 204988
rowpermute 14705406
rowslice 79295966
rowslicepermute 185002
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27631507
sqrfrac 4148224
sqrti 6610143
sqrtnr 2810210
sqrtr 80369113
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60139320
truecoef 0
trunc_safe 0
ulogint 1716510
upr_norm 346135
uutoQ 1600198
vec_append 3465049
vec_ei 1713833
vec_lengthen 18960
vec_prepend 313996
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036613
veclast 9372687
vecmodii 0
vecmoduu 49784
vecpermute 20548169
vecreverse 697277
vecreverse_inplace 2605
vecslice 655853288
vecslicepermute 2690445
vecsmall_append 4099613
vecsmall_coincidence 0
vecsmall_concat 1464233
vecsmall_copy 4403866
vecsmall_ei 584721
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1163837
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75643
vecsmall_to_col 7838720
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78692093
vecsmalltrunc_append 100859547
vecsmalltrunc_init 189811462
vecsplice 384920
vectrunc_append 15852309
vectrunc_append_batch 9667
vectrunc_init 11768102
zc_to_ZC 7824538
zero_F2m 0
zero_F2m_copy 845063
zero_F2v 3647749
zero_F2x 1350
zero_Flm 2829476
zero_Flm_copy 238233
zero_Flv 59671112
zero_Flx 1426711
zero_zm 0
zero_zv 36733095
zero_zx 0
zerocol 122333864
zeromat 109092
zeromatcopy 14250292
zeropadic 855663
zeropadic_shallow 17023
zeropol 42354032
zeroser 138908
zerovec 28453484
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 2183717
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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