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 30674-be81ecfdd4) Lines: 1421 1535 92.6 %
Date: 2026-02-11 09:23:10 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 8038691
F2m_copy 200440
F2m_flip 1554224
F2m_set 798
F2v_clear 12353976
F2v_coeff 661321687
F2v_copy 4487
F2v_ei 42
F2v_flip 1554224
F2v_set 101403487
F2v_to_F2x 37795
F2xX_shift 0
F2x_clear 12353982
F2x_coeff 667841178
F2x_copy 60581973
F2x_div 1571103
F2x_equal 4672381
F2x_equal1 2874069
F2x_flip 1554224
F2x_renormalize 115432878
F2x_set 124754467
F2xqX_div 33173
F3m_coeff 3255972
F3m_copy 0
F3m_set 0
Flm_copy 6433663
Flm_row 8742095
Flv_copy 2554996
Flx_constant 334026
Flx_copy 173231214
Flx_div 1998022
Flx_div_pre 21689792
Flx_equal1 8329932
Flx_lead 978512
Flx_mulu 1105469
FlxqX_div 0
FlxqX_div_pre 165411
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694573
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849903
FpXY_Fq_evaly 20587
FpX_div 5581196
FpX_renormalize 144226127
Fp_add 181378911
Fp_addmul 11268671
Fp_center 77354913
Fp_center_i 18030995
Fp_div 15034636
Fp_divu 15129048
Fp_double 20959637
Fp_halve 247271
Fp_inv 23441597
Fp_invsafe 1100343
Fp_mul 200882474
Fp_muls 17780
Fp_mulu 69003049
Fp_neg 31477052
Fp_red 82193719
Fp_sqr 64556186
Fp_sub 203227359
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 571655
FqX_Fq_mul 427281
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38564
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444766
FqX_factor 140960
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 3106497
Fq_to_FpXQ 73652
GENbinbase 961796192
QV_isscalar 54417053
Q_abs 8062842
Q_abs_shallow 120220
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619845
RgC_gtofp 34032848
RgC_gtomp 574
RgM_dimensions 9741653
RgM_fpnorml2 22662
RgM_gtofp 8257999
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179789
RgV_gtofp 56
RgV_is_QV 140735
RgV_is_ZV 32160177
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210273
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103403353
RgX_div 6997996
RgX_equal_var 26883007
RgX_fpnorml2 61600
RgX_gtofp 7145441
RgX_is_QX 399940
RgX_is_ZX 22423264
RgX_is_monomial 1331370
RgX_is_rational 68166
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479368
RgX_shift_inplace_init 479368
RgX_to_RgV 140
Rg_col_ei 1451018
Rg_to_Fq 756
ZC_hnfrem 10697522
ZM_ZV_mod 596654
ZM_hnfrem 363786
ZM_lll 7117719
ZV_ZV_mod 8131976
ZV_dvd 23485
ZV_isscalar 23674691
ZV_to_zv 3211716
ZXQ_mul 2161056
ZXQ_sqr 960347
ZX_equal1 12850
ZX_is_monic 7374243
ZX_renormalize 155067470
Z_ispower 98
Z_issquare 457642
abgrp_get_cyc 12230841
abgrp_get_gen 1765011
abgrp_get_no 354947
absfrac 46540331
absfrac_shallow 28237
addmuliu 535709
addmuliu_inplace 59653018
affc_fixlg 249624
affgr 899594
bid_get_MOD 2157256
bid_get_U 3680228
bid_get_arch 41188
bid_get_archp 2397116
bid_get_cyc 5739867
bid_get_fact 2498964
bid_get_fact2 2201576
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804720
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157977
bin_copy 496007835
bit_accuracy 3160644408
bit_accuracy_mul 3175484
bit_prec 143263450
bnf_get_clgp 5374981
bnf_get_cyc 3686139
bnf_get_fu 25859
bnf_get_fu_nocheck 289092
bnf_get_gen 1680301
bnf_get_logfu 2874784
bnf_get_nf 9865175
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367772
bnf_get_tuN 283002
bnf_get_tuU 303583
bnr_get_bid 2046089
bnr_get_bnf 3710950
bnr_get_clgp 2830230
bnr_get_cyc 2522559
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399073
bnr_get_no 277488
both_odd 124015377
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975460
cgiv 102687845
checkell_i 5593288
closure_arity 371699736
closure_codestr 321287253
closure_get_code 0
closure_get_data 321246672
closure_get_dbg 13635
closure_get_frame 14717246
closure_get_oper 321269427
closure_get_text 37079
closure_is_variadic 45906204
col_ei 5924606
coltrunc_init 740257
const_col 9729715
const_vec 34567678
const_vecsmall 19707311
constant_coeff 1441424
cxcompotor 18211755
cxnorm 91200481
cxtofp 9079947
cxtoreal 337207
cyc_get_expo 2757568
cyclic_perm 99911
dbllog2r 92822491
degpol 5502884215
div_content 58504
divsBIL 8097460823
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997077
ell_get_a2 7106177
ell_get_a3 8814045
ell_get_a4 8536718
ell_get_a6 10370956
ell_get_b2 7371030
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017995
ell_get_c6 13474421
ell_get_disc 16814967
ell_get_j 2126269
ell_get_type 12499022
ell_is_inf 52426412
ellff_get_a4a6 800023
ellff_get_field 2036842
ellinf 1869940
ellnf_get_bnf 119
ellnf_get_nf 2027243
equali1 1174072680
equalim1 139505466
err_get_compo 294
err_get_num 62551
gaddgs 123248664
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 255459451
gc_INT 4113758369
gc_INT_affii 8493047
gc_all 109639226
gc_leaf 1140103268
gc_slice 2204355
gc_upto 1955423124
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 761902
gdivsg 531592
gen_I 1269740
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928935
get_F2x_mod 2499299
get_F2x_var 2533908
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82975364
get_Flx_mod 25596272
get_Flx_var 68359147
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 6424451
get_FpX_mod 3394337
get_FpX_var 6958103
gisdouble 2996456
gmax_shallow 13510199
gmaxsg 0
gmin_shallow 877747
gminsg 0
gmulgs 22624294
gmulgu 283104681
gsubgs 1724811
gtodouble 60785087
gtofp 254352387
gtomp 22428
gtos 85855651
gtou 100703
guncloneNULL 48008529
guncloneNULL_deep 1493176
gval 6230
hash_str 2760615
hash_str_len 31631896
icopy_avma 8042897403
idealchineseinit 5427
idealred 138437
identity_ZV 8113
identity_perm 3242340
identity_zv 3266691
inf_get_sign 1452967
inv_content 0
is_bigint 563423192
is_const_t 4901387021
is_extscalar_t 6876
is_intreal_t 9584650
is_matvec_t 658615587
is_noncalc_t 85780898
is_pm1 2205789930
is_qfb_t 0
is_rational_t 5032685
is_real_t 62059883
is_recursive_t 9238594886
is_scalar_t 375681805
is_universal_constant 326538332
is_vec_t 43970373
isint1 17586409
isintm1 5710362
isintzero 2846152355
ismpzero 9584544
isonstack 8280006892
killblock 1951882
leading_coeff 170215735
leafcopy_avma 577233443
lg_increase 322554925
lgcols 351665277
lgpol 2692736578
lincombii 38240391
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 16824962
mkcol 10639778
mkcol2 156928382
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33551
mkcols 40411
mkcomplex 91615838
mkerr 0
mkfrac 41646530
mkfraccopy 4999795
mkfracss 1209563
mkintmod 8070770
mkintmodu 1834
mkmat 4750849
mkmat2 33654480
mkmat22 50294147
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122278
mkmoo 108799
mkoo 1331907
mkpadic 2009
mkpolmod 3103720
mkqfb 27929709
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71267720
mkvec2 186483687
mkvec2copy 114528
mkvec2s 220251
mkvec3 120112877
mkvec3s 524441
mkvec4 10094889
mkvec4s 21
mkvec5 15185985
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131627244
mkvecsmall2 234981057
mkvecsmall3 104186616
mkvecsmall4 18678541
mkvecsmall5 1717485
modpr_get_T 13867123
modpr_get_p 1887627
modpr_get_pr 31236590
mul_content 2657296
mul_denom 10707861
mulsubii 3882190
nbits2extraprec 1458640700
nbits2ndec 228
nbits2nlong 12752420
nbits2prec 186145986
nbrows 157475847
nchar2nlong 127562230
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304876
nf_get_M 21745531
nf_get_Tr 22084
nf_get_degree 71371180
nf_get_diff 4445
nf_get_disc 463487
nf_get_index 3711404
nf_get_invzk 9767611
nf_get_pol 98110634
nf_get_r1 23465982
nf_get_r2 4154
nf_get_ramified_primes 64644
nf_get_roots 1628950
nf_get_roundG 1748186
nf_get_sign 519551
nf_get_varn 1503783
nf_get_zk 4382
nf_get_zkden 5459904
nf_get_zkprimpart 5414185
normalize_frac 17206559
odd 2090828208
pari_calloc 47734
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 509493756
pari_malloc 745438817
pari_realloc 1890
pari_realloc_ip 2348227
pari_stack_alloc 1021313729
pari_stack_base 1027105505
pari_stack_delete 5830906
pari_stack_init 6351713
pari_stack_new 926031073
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2782096
perm_mul 80921432
perm_sqr 728
pol0_F2x 13247351
pol0_Flx 103468483
pol1_F2x 3956831
pol1_Flx 55059300
pol_0 82787610
pol_1 3755790
pol_x 3857312
pol_xn 2249530
pol_xnall 294
polx_F2x 1078475
polx_Flx 37489089
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130422
pr_get_e 16161543
pr_get_f 26443151
pr_get_gen 12071307
pr_get_p 92749960
pr_get_tau 49768229
pr_is_inert 17224019
pr_norm 1090515
prec2lg 4472219167
prec2nbits 103975051
prec2nbits_mul 581165
prec2ndec 9778
precdbl 475403
qfb_disc 18502512
qfb_disc3 4995801
qfb_is_qfi 62322567
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8006394695
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 14707076
rowslice 79361516
rowslicepermute 185038
rowsplice 273
ser_isexactzero 10120326
shallowcopy 27632441
sqrfrac 4148306
sqrti 6610286
sqrtnr 2810227
sqrtr 80380798
sstoQ 1097313
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60148980
truecoef 0
trunc_safe 0
ulogint 1726119
upr_norm 346136
uutoQ 1602144
vec_append 3464631
vec_ei 1713864
vec_lengthen 18960
vec_prepend 314006
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036941
veclast 9372704
vecmodii 0
vecmoduu 49784
vecpermute 20550082
vecreverse 697305
vecreverse_inplace 2605
vecslice 656636260
vecslicepermute 2691928
vecsmall_append 4114679
vecsmall_coincidence 0
vecsmall_concat 1464253
vecsmall_copy 4403799
vecsmall_ei 584731
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043249
vecsmall_max 1164088
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75641
vecsmall_to_col 7838841
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78726093
vecsmalltrunc_append 100899702
vecsmalltrunc_init 192512469
vecsplice 384921
vectrunc_append 15855821
vectrunc_append_batch 9667
vectrunc_init 11767655
zc_to_ZC 7824660
zero_F2m 0
zero_F2m_copy 845050
zero_F2v 3647738
zero_F2x 1350
zero_Flm 2830691
zero_Flm_copy 238234
zero_Flv 59674807
zero_Flx 1426917
zero_zm 0
zero_zv 36736787
zero_zx 0
zerocol 122335597
zeromat 109080
zeromatcopy 14249934
zeropadic 857306
zeropadic_shallow 17150
zeropol 42353419
zeroser 138943
zerovec 29292207
zerovec_block 29654
zm_copy 0
zm_row 0
zm_to_zxV 0
zm_transpose 266
znstar_get_N 38658713
znstar_get_U 176107
znstar_get_Ui 46788
znstar_get_conreycyc 7982108
znstar_get_conreygen 3290526
znstar_get_cyc 262088
znstar_get_faN 7334819
znstar_get_gen 16150
znstar_get_no 14
znstar_get_pe 2869063
zv_copy 2183752
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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