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 30734-f1f26dedcb) Lines: 1423 1535 92.7 %
Date: 2026-03-05 09:24:39 Functions: 650 707 91.9 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
F2m_clear 0
F2m_coeff 8156322
F2m_copy 200433
F2m_flip 1554273
F2m_set 798
F2v_clear 12353641
F2v_coeff 661437383
F2v_copy 4487
F2v_ei 42
F2v_flip 1554273
F2v_set 101430393
F2v_to_F2x 37798
F2xX_shift 0
F2x_clear 12353639
F2x_coeff 668003676
F2x_copy 59763736
F2x_div 1570568
F2x_equal 4666455
F2x_equal1 2873766
F2x_flip 1554273
F2x_renormalize 112529912
F2x_set 123306342
F2xqX_div 33173
F3m_coeff 3255660
F3m_copy 0
F3m_set 0
Flm_copy 6434662
Flm_row 8743442
Flv_copy 2554016
Flx_constant 334143
Flx_copy 173162158
Flx_div 1999875
Flx_div_pre 21695892
Flx_equal1 8183397
Flx_lead 979243
Flx_mulu 1104851
FlxqX_div 0
FlxqX_div_pre 165414
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4663884
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 818704
FpXY_Fq_evaly 20587
FpX_div 5582086
FpX_renormalize 145343394
Fp_add 181025432
Fp_addmul 11273524
Fp_center 77426685
Fp_center_i 18056503
Fp_div 15034902
Fp_divu 15125666
Fp_double 20936336
Fp_halve 247271
Fp_inv 23436082
Fp_invsafe 1097113
Fp_mul 200862982
Fp_muls 17780
Fp_mulu 70638548
Fp_neg 31468983
Fp_red 82931694
Fp_sqr 64171096
Fp_sub 202813943
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 572215
FqX_Fq_mul 427297
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 445020
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 367932
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 3106702
Fq_to_FpXQ 73652
GENbinbase 915702831
QV_isscalar 54420832
Q_abs 8059648
Q_abs_shallow 120240
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619950
RgC_gtofp 34031998
RgC_gtomp 574
RgM_dimensions 9954073
RgM_fpnorml2 22655
RgM_gtofp 8257549
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22234947
RgV_gtofp 56
RgV_is_QV 142001
RgV_is_ZV 32095288
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210269
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2667901
RgX_copy 102479160
RgX_div 6996190
RgX_equal_var 26879904
RgX_fpnorml2 61606
RgX_gtofp 7151295
RgX_is_QX 399937
RgX_is_ZX 22311507
RgX_is_monomial 1318227
RgX_is_rational 68159
RgX_isscalar 0
RgX_renormalize 347987
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
RgX_to_RgV 140
Rg_col_ei 1451081
Rg_to_Fq 756
ZC_hnfrem 10697525
ZM_ZV_mod 610686
ZM_hnfrem 401453
ZM_lll 7117664
ZV_ZV_mod 8147181
ZV_dvd 23485
ZV_isscalar 23675223
ZV_to_zv 3211715
ZXQ_mul 2166269
ZXQ_sqr 960623
ZX_equal1 10488
ZX_is_monic 7319788
ZX_renormalize 154948139
Z_ispower 98
Z_issquare 509446
abgrp_get_cyc 12231297
abgrp_get_gen 1765033
abgrp_get_no 406729
absfrac 46516098
absfrac_shallow 28237
addmuliu 541581
addmuliu_inplace 59559833
affc_fixlg 249622
affgr 899594
bid_get_MOD 2157259
bid_get_U 3680239
bid_get_arch 41188
bid_get_archp 2397143
bid_get_cyc 5739857
bid_get_fact 2498974
bid_get_fact2 2201579
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804713
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157991
bin_copy 471234752
bit_accuracy 3127728241
bit_accuracy_mul 3175715
bit_prec 143287686
bnf_get_clgp 5375468
bnf_get_cyc 3686603
bnf_get_fu 25859
bnf_get_fu_nocheck 289092
bnf_get_gen 1680319
bnf_get_logfu 2874762
bnf_get_nf 9866300
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367775
bnf_get_tuN 282999
bnf_get_tuU 303583
bnr_get_bid 2046101
bnr_get_bnf 3710948
bnr_get_clgp 2830245
bnr_get_cyc 2522572
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399075
bnr_get_no 277492
both_odd 124015151
cbrtr 0
cbrtr_abs 0
cgetalloc 10115
cgetc 975458
cgiv 105477944
checkell_i 5593240
closure_arity 356303364
closure_codestr 305867207
closure_get_code 28
closure_get_data 305834648
closure_get_dbg 13660
closure_get_frame 14720740
closure_get_oper 305854799
closure_get_text 37150
closure_is_variadic 45911417
col_ei 5925403
coltrunc_init 740257
const_col 9730136
const_vec 34655056
const_vecsmall 18747564
constant_coeff 1438340
cxcompotor 18212619
cxnorm 91204495
cxtofp 9080371
cxtoreal 337205
cyc_get_expo 2757557
cyclic_perm 99911
dbllog2r 92844709
degpol 5501660114
div_content 58510
divsBIL 8109294485
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997030
ell_get_a2 7106196
ell_get_a3 8813998
ell_get_a4 8536737
ell_get_a6 10370975
ell_get_b2 7370964
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11018129
ell_get_c6 13474668
ell_get_disc 16815587
ell_get_j 2126269
ell_get_type 12498922
ell_is_inf 49412635
ellff_get_a4a6 799975
ellff_get_field 2036636
ellinf 1208483
ellnf_get_bnf 119
ellnf_get_nf 2027229
equali1 1166194791
equalim1 139505734
err_get_compo 294
err_get_num 62595
gaddgs 123254006
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80415
gal_get_invvdm 27874
gal_get_mod 23870
gal_get_orders 6706
gal_get_p 6118
gal_get_pol 36428
gal_get_roots 32844
gc_GEN 245557675
gc_INT 4133386076
gc_INT_affii 11571022
gc_all 102366452
gc_leaf 1133336863
gc_slice 2205990
gc_upto 1944646769
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 761930
gdivsg 531591
gen_I 1268276
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928083
get_F2x_mod 2489638
get_F2x_var 2534337
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 83166744
get_Flx_mod 25484845
get_Flx_var 68378657
get_FlxqX_degree 317580
get_FlxqX_mod 8033
get_FlxqX_var 264435
get_FpXQX_degree 3589
get_FpXQX_mod 131148
get_FpXQX_var 51630
get_FpX_degree 6942317
get_FpX_mod 3387424
get_FpX_var 6922578
gisdouble 2996060
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 877910
gminsg 0
gmulgs 23822994
gmulgu 283104681
gsubgs 1730190
gtodouble 60941563
gtofp 254428541
gtomp 22428
gtos 85855784
gtou 100695
guncloneNULL 49815158
guncloneNULL_deep 1509389
gval 6230
hash_str 2741944
hash_str_len 31637086
icopy_avma 8044996507
idealchineseinit 5427
idealred 138820
identity_ZV 8120
identity_perm 3242794
identity_zv 3267144
inf_get_sign 1453270
inv_content 0
is_bigint 571802591
is_const_t 4983139795
is_extscalar_t 6736
is_intreal_t 9585555
is_matvec_t 741220820
is_noncalc_t 88449677
is_pm1 2216145474
is_qfb_t 0
is_rational_t 5015350
is_real_t 61897668
is_recursive_t 9068137706
is_scalar_t 403327373
is_universal_constant 326562847
is_vec_t 43924697
isint1 17586793
isintm1 5711236
isintzero 2839643142
ismpzero 9585457
isonstack 8301458821
killblock 1959710
leading_coeff 171283474
leafcopy_avma 590940218
lg_increase 442753063
lgcols 352697885
lgpol 2609332296
lincombii 38276794
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 754875
matpascal 3983
matslice 16825971
mkcol 10652817
mkcol2 156995541
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33586
mkcols 40411
mkcomplex 91621402
mkerr 0
mkfrac 41638247
mkfraccopy 4999645
mkfracss 1209563
mkintmod 8061539
mkintmodu 1834
mkmat 4780021
mkmat2 33665734
mkmat22 50260856
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122321
mkmoo 108904
mkoo 1332120
mkpadic 2009
mkpolmod 3075553
mkqfb 27928303
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69660666
mkvec2 212053129
mkvec2copy 114537
mkvec2s 220380
mkvec3 122609323
mkvec3s 524441
mkvec4 10146486
mkvec4s 21
mkvec5 15186653
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 131353714
mkvecsmall2 235054388
mkvecsmall3 103273447
mkvecsmall4 18690024
mkvecsmall5 1717658
modpr_get_T 13867118
modpr_get_p 1887627
modpr_get_pr 31236569
mul_content 2657530
mul_denom 10709864
mulsubii 3894070
nbits2extraprec 1458831381
nbits2ndec 228
nbits2nlong 12713930
nbits2prec 186159359
nbrows 158271065
nchar2nlong 127792612
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304835
nf_get_M 21745790
nf_get_Tr 23279
nf_get_degree 71378160
nf_get_diff 4445
nf_get_disc 463517
nf_get_index 3712028
nf_get_invzk 9774938
nf_get_pol 98123085
nf_get_r1 23466274
nf_get_r2 4154
nf_get_ramified_primes 64644
nf_get_roots 1628878
nf_get_roundG 1748518
nf_get_sign 519600
nf_get_varn 1503775
nf_get_zk 4382
nf_get_zkden 5462207
nf_get_zkprimpart 5416421
normalize_frac 17206187
odd 2119917174
pari_calloc 47609
pari_err_BUG 21
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
pari_err_DIM 718
pari_err_DOMAIN 2869
pari_err_FILE 0
pari_err_FILEDESC 36
pari_err_FLAG 98
pari_err_IMPL 539
pari_err_INV 20025
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 485600715
pari_malloc 721664046
pari_realloc 1873
pari_realloc_ip 2351999
pari_stack_alloc 1006057458
pari_stack_base 1011918464
pari_stack_delete 5900972
pari_stack_init 6358966
pari_stack_new 910758092
pari_stack_pushp 5800
perm_conj 418299
perm_inv 3747332
perm_mul 80956886
perm_sqr 728
pol0_F2x 13229863
pol0_Flx 103149852
pol1_F2x 3949098
pol1_Flx 54888966
pol_0 25875665
pol_1 3750278
pol_x 3857759
pol_xn 2249709
pol_xnall 294
polx_F2x 1078471
polx_Flx 37503456
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43129815
pr_get_e 16167321
pr_get_f 26444727
pr_get_gen 12072676
pr_get_p 92761526
pr_get_tau 49774230
pr_is_inert 17224524
pr_norm 1090608
prec2lg 4471963786
prec2nbits 103978467
prec2nbits_mul 581080
prec2ndec 9778
precdbl 475641
qfb_disc 18502554
qfb_disc3 4995060
qfb_is_qfi 64509899
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8018154735
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 763893
row_i 987
rowcopy 204988
rowpermute 14758520
rowslice 79478437
rowslicepermute 234111
rowsplice 273
ser_isexactzero 10120354
shallowcopy 27896797
sqrfrac 4148254
sqrti 6611356
sqrtnr 2810361
sqrtr 80382258
sstoQ 1097313
sturm 385
submulii 31985153
submuliu 7700
submuliu_inplace 60070521
truecoef 0
trunc_safe 0
ulogint 1974150
upr_norm 346136
uutoQ 1602144
vec_append 3469022
vec_ei 1714426
vec_lengthen 18960
vec_prepend 313914
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039455
veclast 9372643
vecmodii 0
vecmoduu 49784
vecpermute 21101430
vecreverse 697305
vecreverse_inplace 2605
vecslice 657574043
vecslicepermute 2856543
vecsmall_append 4114718
vecsmall_coincidence 0
vecsmall_concat 1464648
vecsmall_copy 5369115
vecsmall_ei 584805
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1164178
vecsmall_min 2352
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75755
vecsmall_to_col 7922775
vecsmall_to_vec 577021
vecsmall_to_vec_inplace 3304
vecsmallpermute 78760628
vecsmalltrunc_append 100863895
vecsmalltrunc_init 242609485
vecsplice 385002
vectrunc_append 15860111
vectrunc_append_batch 9667
vectrunc_init 11769530
zc_to_ZC 7908177
zero_F2m 0
zero_F2m_copy 845009
zero_F2v 3647879
zero_F2x 1181
zero_Flm 2830825
zero_Flm_copy 238322
zero_Flv 59736390
zero_Flx 1427107
zero_zm 0
zero_zv 37303324
zero_zx 0
zerocol 125142373
zeromat 109001
zeromatcopy 14377366
zeropadic 856716
zeropadic_shallow 17087
zeropol 12864368
zeroser 138992
zerovec 29344563
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 2182755
zv_to_ZV 568222
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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