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 30660-09c6d0ed2e) Lines: 1420 1535 92.5 %
Date: 2026-02-01 09:23:44 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 8036567
F2m_copy 200427
F2m_flip 1553613
F2m_set 798
F2v_clear 12352766
F2v_coeff 661307309
F2v_copy 4487
F2v_ei 42
F2v_flip 1553613
F2v_set 101401663
F2v_to_F2x 37728
F2xX_shift 0
F2x_clear 12352771
F2x_coeff 667889238
F2x_copy 59914611
F2x_div 1558822
F2x_equal 4620239
F2x_equal1 2874051
F2x_flip 1553614
F2x_renormalize 114633241
F2x_set 124594175
F2xqX_div 33173
F3m_coeff 3255919
F3m_copy 0
F3m_set 0
Flm_copy 6433556
Flm_row 8741403
Flv_copy 2555022
Flx_constant 334005
Flx_copy 173216330
Flx_div 1998014
Flx_div_pre 21687686
Flx_equal1 8329973
Flx_lead 978719
Flx_mulu 1105377
FlxqX_div 0
FlxqX_div_pre 165414
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694510
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581209
FpX_renormalize 144225019
Fp_add 181380362
Fp_addmul 11293974
Fp_center 77207853
Fp_center_i 18021348
Fp_div 15035820
Fp_divu 15130326
Fp_double 20995776
Fp_halve 247271
Fp_inv 23440493
Fp_invsafe 1100353
Fp_mul 200877699
Fp_muls 17780
Fp_mulu 71574012
Fp_neg 31480191
Fp_red 82195637
Fp_sqr 64322337
Fp_sub 202955274
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 571643
FqX_Fq_mul 427301
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38569
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444771
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 367710
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 3106455
Fq_to_FpXQ 73652
GENbinbase 961935321
QV_isscalar 54417425
Q_abs 8062624
Q_abs_shallow 120240
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619847
RgC_gtofp 34034692
RgC_gtomp 574
RgM_dimensions 9741656
RgM_fpnorml2 22661
RgM_gtofp 8258443
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179449
RgV_gtofp 56
RgV_is_QV 140732
RgV_is_ZV 32158275
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210272
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406936
RgX_div 7000642
RgX_equal_var 26883021
RgX_fpnorml2 61600
RgX_gtofp 7145200
RgX_is_QX 399930
RgX_is_ZX 22423320
RgX_is_monomial 1331378
RgX_is_rational 68163
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479399
RgX_shift_inplace_init 479399
RgX_to_RgV 140
Rg_col_ei 1451056
Rg_to_Fq 756
ZC_hnfrem 10697649
ZM_ZV_mod 596551
ZM_hnfrem 363775
ZM_lll 7118098
ZV_ZV_mod 8131614
ZV_dvd 23485
ZV_isscalar 23675586
ZV_to_zv 3211408
ZXQ_mul 2161244
ZXQ_sqr 960438
ZX_equal1 12850
ZX_is_monic 7374285
ZX_renormalize 155054408
Z_ispower 98
Z_issquare 457641
abgrp_get_cyc 12230855
abgrp_get_gen 1765033
abgrp_get_no 354951
absfrac 46638818
absfrac_shallow 28237
addmuliu 535772
addmuliu_inplace 59654178
affc_fixlg 249618
affgr 899594
bid_get_MOD 2157261
bid_get_U 3680235
bid_get_arch 41188
bid_get_archp 2397147
bid_get_cyc 5739852
bid_get_fact 2498959
bid_get_fact2 2201581
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804706
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157984
bin_copy 496073251
bit_accuracy 3157457081
bit_accuracy_mul 3175484
bit_prec 143269694
bnf_get_clgp 5375025
bnf_get_cyc 3686159
bnf_get_fu 25859
bnf_get_fu_nocheck 289093
bnf_get_gen 1680318
bnf_get_logfu 2874767
bnf_get_nf 9865178
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367773
bnf_get_tuN 283006
bnf_get_tuU 303586
bnr_get_bid 2046095
bnr_get_bnf 3710939
bnr_get_clgp 2830252
bnr_get_cyc 2522578
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77118
bnr_get_nf 1399078
bnr_get_no 277490
both_odd 124095875
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975458
cgiv 102679647
checkell_i 5593305
closure_arity 372639023
closure_codestr 322255870
closure_get_code 0
closure_get_data 322190795
closure_get_dbg 13635
closure_get_frame 14715563
closure_get_oper 322222929
closure_get_text 37079
closure_is_variadic 45903680
col_ei 5924611
coltrunc_init 740250
const_col 9729678
const_vec 34565401
const_vecsmall 19706978
constant_coeff 1441440
cxcompotor 18213425
cxnorm 91201186
cxtofp 9080731
cxtoreal 337205
cyc_get_expo 2757552
cyclic_perm 99911
dbllog2r 92822247
degpol 5518917200
div_content 58504
divsBIL 8094527616
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997090
ell_get_a2 7106184
ell_get_a3 8814058
ell_get_a4 8536725
ell_get_a6 10370963
ell_get_b2 7371036
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017713
ell_get_c6 13474173
ell_get_disc 16814534
ell_get_j 2126269
ell_get_type 12499072
ell_is_inf 52420414
ellff_get_a4a6 800037
ellff_get_field 2036870
ellinf 1870077
ellnf_get_bnf 119
ellnf_get_nf 2027241
equali1 1174336516
equalim1 139505335
err_get_compo 294
err_get_num 62550
gaddgs 123248660
gal_get_den 27867
gal_get_e 91
gal_get_gen 15435
gal_get_group 80388
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 255508066
gc_INT 4111467224
gc_INT_affii 8492996
gc_all 109637326
gc_leaf 1145034023
gc_slice 2204237
gc_upto 1954652785
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 761928
gdivsg 531592
gen_I 1269756
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928992
get_F2x_mod 2499317
get_F2x_var 2533966
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 84243180
get_Flx_mod 25596161
get_Flx_var 68357904
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 6424544
get_FpX_mod 3394358
get_FpX_var 6958163
gisdouble 2997036
gmax_shallow 13510200
gmaxsg 0
gmin_shallow 877795
gminsg 0
gmulgs 22640758
gmulgu 282059385
gsubgs 1724829
gtodouble 60779905
gtofp 254352392
gtomp 22428
gtos 85855687
gtou 100698
guncloneNULL 48011440
guncloneNULL_deep 1497139
gval 6230
hash_str 2760612
hash_str_len 31630577
icopy_avma 8041037537
idealchineseinit 5427
idealred 138437
identity_ZV 8113
identity_perm 3241757
identity_zv 3266107
inf_get_sign 1452945
inv_content 0
is_bigint 563418970
is_const_t 4900404942
is_extscalar_t 6876
is_intreal_t 9584821
is_matvec_t 659643012
is_noncalc_t 85872583
is_pm1 2207430350
is_qfb_t 0
is_rational_t 5032657
is_real_t 62062524
is_recursive_t 9238698904
is_scalar_t 375659461
is_universal_constant 326618754
is_vec_t 43982955
isint1 17584942
isintm1 5710325
isintzero 2845292056
ismpzero 9584722
isonstack 8283708163
killblock 1951366
leading_coeff 170225207
leafcopy_avma 577329618
lg_increase 314337760
lgcols 351627383
lgpol 2697660827
lincombii 38244903
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 754834
matpascal 3983
matslice 16820575
mkcol 10639797
mkcol2 156896290
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33553
mkcols 40411
mkcomplex 91626601
mkerr 0
mkfrac 41642785
mkfraccopy 4999661
mkfracss 1209563
mkintmod 8092654
mkintmodu 1813
mkmat 4750872
mkmat2 33654472
mkmat22 50285049
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122301
mkmoo 108794
mkoo 1331899
mkpadic 2009
mkpolmod 3103727
mkqfb 27930605
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71223628
mkvec2 184649913
mkvec2copy 114527
mkvec2s 220250
mkvec3 123920105
mkvec3s 524441
mkvec4 10093850
mkvec4s 21
mkvec5 15185751
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131602411
mkvecsmall2 234975538
mkvecsmall3 104182623
mkvecsmall4 18674277
mkvecsmall5 1717486
modpr_get_T 13867126
modpr_get_p 1887627
modpr_get_pr 31236616
mul_content 2657460
mul_denom 10707928
mulsubii 3881540
nbits2extraprec 1458637694
nbits2ndec 228
nbits2nlong 12755183
nbits2prec 186145633
nbrows 157476339
nchar2nlong 127563601
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304988
nf_get_M 21746431
nf_get_Tr 22085
nf_get_degree 71372128
nf_get_diff 4445
nf_get_disc 463475
nf_get_index 3711383
nf_get_invzk 9767495
nf_get_pol 98111297
nf_get_r1 23466914
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1629065
nf_get_roundG 1748292
nf_get_sign 519548
nf_get_varn 1503773
nf_get_zk 4382
nf_get_zkden 5459782
nf_get_zkprimpart 5414046
normalize_frac 17206139
odd 2090201820
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 509557034
pari_malloc 745504987
pari_realloc 1890
pari_realloc_ip 2348424
pari_stack_alloc 1022230223
pari_stack_base 1028073992
pari_stack_delete 5843114
pari_stack_init 6350915
pari_stack_new 926971901
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781963
perm_mul 80898571
perm_sqr 728
pol0_F2x 13207019
pol0_Flx 103443124
pol1_F2x 3957620
pol1_Flx 55058176
pol_0 82996707
pol_1 3755716
pol_x 3857186
pol_xn 2249257
pol_xnall 294
polx_F2x 1073739
polx_Flx 37485115
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130618
pr_get_e 16162355
pr_get_f 26443946
pr_get_gen 12071473
pr_get_p 92751637
pr_get_tau 49769379
pr_is_inert 17224545
pr_norm 1090635
prec2lg 4471037043
prec2nbits 103972774
prec2nbits_mul 581165
prec2ndec 9778
precdbl 475392
qfb_disc 18502535
qfb_disc3 4996233
qfb_is_qfi 62319898
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8003185075
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 763883
row_i 987
rowcopy 204988
rowpermute 14706189
rowslice 79330345
rowslicepermute 185226
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27632562
sqrfrac 4148332
sqrti 6610240
sqrtnr 2810363
sqrtr 80381009
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60144852
truecoef 0
trunc_safe 0
ulogint 1715373
upr_norm 346132
uutoQ 1600212
vec_append 3464628
vec_ei 1713877
vec_lengthen 18960
vec_prepend 314010
vec_setconst 0
vec_shorten 11556
vec_to_vecsmall 4036641
veclast 9372722
vecmodii 0
vecmoduu 49784
vecpermute 20548435
vecreverse 697277
vecreverse_inplace 2605
vecslice 656135238
vecslicepermute 2691050
vecsmall_append 4099137
vecsmall_coincidence 0
vecsmall_concat 1464187
vecsmall_copy 4403845
vecsmall_ei 584710
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1164069
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75638
vecsmall_to_col 7838872
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78703311
vecsmalltrunc_append 100865473
vecsmalltrunc_init 188703966
vecsplice 384918
vectrunc_append 15854259
vectrunc_append_batch 9667
vectrunc_init 11766618
zc_to_ZC 7824689
zero_F2m 0
zero_F2m_copy 845013
zero_F2v 3647562
zero_F2x 1350
zero_Flm 2829691
zero_Flm_copy 238229
zero_Flv 59660933
zero_Flx 1427041
zero_zm 0
zero_zv 36722074
zero_zx 0
zerocol 122340651
zeromat 109140
zeromatcopy 14250870
zeropadic 855686
zeropadic_shallow 17024
zeropol 42353978
zeroser 138908
zerovec 28453774
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 2183766
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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