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 30835-e55edf4b45) Lines: 1422 1535 92.6 %
Date: 2026-04-24 09:27:20 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 8359232
F2m_copy 200652
F2m_flip 1554420
F2m_set 798
F2v_clear 12361981
F2v_coeff 664439487
F2v_copy 4487
F2v_ei 42
F2v_flip 1554420
F2v_set 104115243
F2v_to_F2x 37978
F2xX_shift 0
F2x_clear 12361980
F2x_coeff 670996298
F2x_copy 64604655
F2x_div 1571410
F2x_equal 4189654
F2x_equal1 2873799
F2x_flip 1554420
F2x_renormalize 127797065
F2x_set 129953252
F2xqX_div 33173
F3m_coeff 3255550
F3m_copy 0
F3m_set 0
Flm_copy 6434478
Flm_row 8743609
Flv_copy 2059149
Flx_constant 1091319
Flx_copy 175788809
Flx_div 1999801
Flx_div_pre 21706951
Flx_equal1 8196258
Flx_lead 1069468
Flx_mulu 1105404
FlxqX_div 0
FlxqX_div_pre 165417
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4692327
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582124
FpX_renormalize 147160948
Fp_add 183534205
Fp_addmul 11299157
Fp_center 77224696
Fp_center_i 18004218
Fp_div 15033828
Fp_divu 15128315
Fp_double 20946851
Fp_halve 247271
Fp_inv 23412835
Fp_invsafe 1097244
Fp_mul 203686415
Fp_muls 17780
Fp_mulu 66225014
Fp_neg 32669269
Fp_red 82927594
Fp_sqr 64318176
Fp_sub 202161150
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 573027
FqX_Fq_mul 427303
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 445775
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 368264
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 3106093
Fq_to_FpXQ 73652
GENbinbase 919104035
QV_isscalar 54419696
Q_abs 8078362
Q_abs_shallow 120240
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619944
RgC_gtofp 34033609
RgC_gtomp 574
RgM_dimensions 9954765
RgM_fpnorml2 22655
RgM_gtofp 8257758
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22226798
RgV_gtofp 56
RgV_is_QV 142003
RgV_is_ZV 32096669
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210271
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102503794
RgX_div 6998185
RgX_equal_var 26880493
RgX_fpnorml2 61608
RgX_gtofp 7164625
RgX_is_QX 399939
RgX_is_ZX 22316425
RgX_is_monomial 1326862
RgX_is_rational 68159
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
RgX_to_RgV 140
Rg_col_ei 1451079
Rg_to_Fq 756
ZC_hnfrem 10697545
ZM_ZV_mod 610678
ZM_hnfrem 401376
ZM_lll 7136289
ZV_ZV_mod 8147165
ZV_dvd 23485
ZV_isscalar 23675346
ZV_to_zv 3211714
ZXQ_mul 2166163
ZXQ_sqr 960517
ZX_equal1 10488
ZX_is_monic 7319802
ZX_renormalize 157538681
Z_ispower 98
Z_issquare 509452
abgrp_get_cyc 12231243
abgrp_get_gen 1765039
abgrp_get_no 406739
absfrac 47729540
absfrac_shallow 28237
addmuliu 541581
addmuliu_inplace 59632723
affc_fixlg 249623
affgr 899608
bid_get_MOD 2157265
bid_get_U 3680245
bid_get_arch 41188
bid_get_archp 2397107
bid_get_cyc 5739804
bid_get_fact 2498920
bid_get_fact2 2201584
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804650
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157998
bin_copy 472935227
bit_accuracy 3145863835
bit_accuracy_mul 3175715
bit_prec 143393165
bnf_get_clgp 5375486
bnf_get_cyc 3686619
bnf_get_fu 25859
bnf_get_fu_nocheck 289085
bnf_get_gen 1680325
bnf_get_logfu 2874764
bnf_get_nf 9866332
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367776
bnf_get_tuN 283001
bnf_get_tuU 303585
bnr_get_bid 2046099
bnr_get_bnf 3710945
bnr_get_clgp 2830253
bnr_get_cyc 2522572
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77118
bnr_get_nf 1399078
bnr_get_no 277491
both_odd 123292437
cbrtr 0
cbrtr_abs 0
cgetalloc 10157
cgetc 975446
cgiv 105483514
checkell_i 8104025
closure_arity 356338197
closure_codestr 305915958
closure_get_code 28
closure_get_data 305864064
closure_get_dbg 13660
closure_get_frame 14690286
closure_get_oper 305890305
closure_get_text 37150
closure_is_variadic 45951347
col_ei 5925250
coltrunc_init 740257
const_col 9730090
const_vec 34637478
const_vecsmall 18861147
constant_coeff 1442666
cxcompotor 18239762
cxnorm 94253616
cxtofp 9094006
cxtoreal 337207
cyc_get_expo 2757531
cyclic_perm 99932
dbllog2r 94341210
degpol 5513116175
div_content 58511
divsBIL 8241693555
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 17049198
ell_get_a2 11108723
ell_get_a3 12863764
ell_get_a4 10325141
ell_get_a6 10371101
ell_get_b2 7371408
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11018941
ell_get_c6 13474591
ell_get_disc 16815988
ell_get_j 2126269
ell_get_type 14946137
ell_is_inf 50198197
ellff_get_a4a6 551466
ellff_get_field 1790616
ellinf 913913
ellnf_get_bnf 119
ellnf_get_nf 2027242
equali1 1171361577
equalim1 139546792
err_get_compo 294
err_get_num 62594
gaddgs 123271973
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 246930532
gc_INT 4137441232
gc_INT_affii 11574424
gc_all 102447407
gc_leaf 1162233273
gc_slice 2211546
gc_upto 1972598233
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 761939
gdivsg 561181
gen_I 1268866
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928559
get_F2x_mod 3307685
get_F2x_var 2168700
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82494451
get_Flx_mod 25498896
get_Flx_var 68243838
get_FlxqX_degree 317580
get_FlxqX_mod 8033
get_FlxqX_var 264435
get_FpXQX_degree 3589
get_FpXQX_mod 146583
get_FpXQX_var 51630
get_FpX_degree 6969346
get_FpX_mod 3387861
get_FpX_var 6952096
gisdouble 2995265
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 899725
gminsg 0
gmulgs 23830650
gmulgu 283360013
gsubgs 1731927
gtodouble 66256250
gtofp 257207132
gtomp 22428
gtos 85878202
gtou 100704
guncloneNULL 49828660
guncloneNULL_deep 1510086
gval 6230
hash_str 2781046
hash_str_len 31624037
icopy_avma 8055631116
idealchineseinit 5427
idealred 138816
identity_ZV 8120
identity_perm 3243147
identity_zv 3267512
inf_get_sign 1453213
inv_content 0
is_bigint 574370624
is_const_t 5001656780
is_extscalar_t 6904
is_intreal_t 9712728
is_matvec_t 743661923
is_noncalc_t 88515655
is_pm1 2218064568
is_qfb_t 0
is_rational_t 5017775
is_real_t 61900629
is_recursive_t 9111612612
is_scalar_t 403952028
is_universal_constant 326436689
is_vec_t 44026492
isint1 17994627
isintm1 6086920
isintzero 2848318734
ismpzero 9712624
isonstack 8361417612
killblock 1958024
leading_coeff 169348027
leafcopy_avma 592963184
lg_increase 439450323
lgcols 352753857
lgpol 2623790569
lincombii 38267988
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 755015
matpascal 4683
matslice 16824824
mkcol 10654055
mkcol2 157024489
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33578
mkcols 40411
mkcomplex 92027715
mkerr 0
mkfrac 42554261
mkfraccopy 5006811
mkfracss 1209563
mkintmod 8066867
mkintmodu 1834
mkmat 4780752
mkmat2 33655623
mkmat22 50258184
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122299
mkmoo 108899
mkoo 1332089
mkpadic 2009
mkpolmod 3075534
mkqfb 27928309
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 68910610
mkvec2 214786426
mkvec2copy 114533
mkvec2s 220741
mkvec3 120674281
mkvec3s 524441
mkvec4 10156408
mkvec4s 21
mkvec5 15187632
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140333209
mkvecsmall2 256947400
mkvecsmall3 103254888
mkvecsmall4 18645238
mkvecsmall5 1718699
modpr_get_T 13867106
modpr_get_p 1887627
modpr_get_pr 31236550
mul_content 2657415
mul_denom 10753395
mulsubii 3893693
nbits2extraprec 1497399647
nbits2ndec 228
nbits2nlong 12750179
nbits2prec 189002586
nbrows 158335924
nchar2nlong 127843328
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304757
nf_get_M 21741502
nf_get_Tr 23350
nf_get_degree 71375897
nf_get_diff 4445
nf_get_disc 463576
nf_get_index 3711984
nf_get_invzk 9774614
nf_get_pol 98119038
nf_get_r1 23466365
nf_get_r2 4154
nf_get_ramified_primes 64644
nf_get_roots 1628800
nf_get_roundG 1748444
nf_get_sign 519600
nf_get_varn 1503754
nf_get_zk 4382
nf_get_zkden 5462110
nf_get_zkprimpart 5416302
normalize_frac 17568551
odd 2125217369
pari_calloc 48043
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
pari_err_DIM 718
pari_err_DOMAIN 2876
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 487295713
pari_malloc 723415629
pari_realloc 1887
pari_realloc_ip 2347372
pari_stack_alloc 1005708929
pari_stack_base 1011593972
pari_stack_delete 5885055
pari_stack_init 6347090
pari_stack_new 910388657
pari_stack_pushp 5842
perm_conj 418299
perm_inv 3747398
perm_mul 80952160
perm_sqr 728
pol0_F2x 17355883
pol0_Flx 111640233
pol1_F2x 4768526
pol1_Flx 55725879
pol_0 27168686
pol_1 3752542
pol_x 3865080
pol_xn 2253485
pol_xnall 294
polx_F2x 1079065
polx_Flx 37497696
polx_zx 0
polxn_Flx 371
powIs 620095
powii 43130003
pr_get_e 16167184
pr_get_f 26443792
pr_get_gen 12072402
pr_get_p 92760020
pr_get_tau 49772661
pr_is_inert 17223964
pr_norm 1090452
prec2lg 4565421143
prec2nbits 106955689
prec2nbits_mul 581097
prec2ndec 9778
precdbl 476400
qfb_disc 18502498
qfb_disc3 4995109
qfb_is_qfi 64528567
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8149989413
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 763888
row_i 987
rowcopy 204988
rowpermute 14758471
rowslice 79451589
rowslicepermute 234289
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27896164
sqrfrac 4201768
sqrti 6612767
sqrtnr 2810562
sqrtr 87175668
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60139310
truecoef 0
trunc_safe 0
ulogint 2104265
upr_norm 346135
uutoQ 1602144
vec_append 3468994
vec_ei 1714731
vec_lengthen 18960
vec_prepend 313924
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4040770
veclast 9374222
vecmodii 0
vecmoduu 49784
vecpermute 21109824
vecreverse 697305
vecreverse_inplace 2605
vecslice 657430665
vecslicepermute 2858039
vecsmall_append 4114716
vecsmall_coincidence 0
vecsmall_concat 1464659
vecsmall_copy 7341020
vecsmall_ei 585124
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043073
vecsmall_max 1177538
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75747
vecsmall_to_col 7925000
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78755774
vecsmalltrunc_append 100838262
vecsmalltrunc_init 242716856
vecsplice 385001
vectrunc_append 15856814
vectrunc_append_batch 9667
vectrunc_init 11769640
zc_to_ZC 7910455
zero_F2m 0
zero_F2m_copy 845266
zero_F2v 3656618
zero_F2x 1181
zero_Flm 2830844
zero_Flm_copy 238307
zero_Flv 61987792
zero_Flx 3255670
zero_zm 0
zero_zv 39509564
zero_zx 0
zerocol 125179416
zeromat 108950
zeromatcopy 14378400
zeropadic 857328
zeropadic_shallow 17150
zeropol 12889611
zeroser 138992
zerovec 29348331
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 1687903
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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