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 30838-aa3635ec72) Lines: 1421 1535 92.6 %
Date: 2026-04-27 09:26:59 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 8356720
F2m_copy 200653
F2m_flip 1553630
F2m_set 798
F2v_clear 12360583
F2v_coeff 664424314
F2v_copy 4487
F2v_ei 42
F2v_flip 1553630
F2v_set 104113124
F2v_to_F2x 37835
F2xX_shift 0
F2x_clear 12360584
F2x_coeff 671032566
F2x_copy 63927299
F2x_div 1558307
F2x_equal 4134447
F2x_equal1 2873718
F2x_flip 1553630
F2x_renormalize 126957350
F2x_set 129777601
F2xqX_div 33173
F3m_coeff 3255556
F3m_copy 0
F3m_set 0
Flm_copy 6434495
Flm_row 8743676
Flv_copy 2059213
Flx_constant 1091671
Flx_copy 175792574
Flx_div 1999793
Flx_div_pre 21705664
Flx_equal1 8196085
Flx_lead 1069126
Flx_mulu 1105490
FlxqX_div 0
FlxqX_div_pre 165410
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4692222
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582165
FpX_renormalize 147160969
Fp_add 183491459
Fp_addmul 11283828
Fp_center 77266004
Fp_center_i 18040044
Fp_div 15034680
Fp_divu 15129202
Fp_double 20928084
Fp_halve 247271
Fp_inv 23413116
Fp_invsafe 1097242
Fp_mul 203718334
Fp_muls 17780
Fp_mulu 65725656
Fp_neg 32672286
Fp_red 82933360
Fp_sqr 64247483
Fp_sub 202129304
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 573023
FqX_Fq_mul 427301
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 445777
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 368261
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 3106400
Fq_to_FpXQ 73652
GENbinbase 919141675
QV_isscalar 54419941
Q_abs 8078468
Q_abs_shallow 120221
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619947
RgC_gtofp 34036568
RgC_gtomp 574
RgM_dimensions 9955339
RgM_fpnorml2 22654
RgM_gtofp 8258156
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22227414
RgV_gtofp 56
RgV_is_QV 141999
RgV_is_ZV 32096693
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210271
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102503838
RgX_div 6998185
RgX_equal_var 26880501
RgX_fpnorml2 61608
RgX_gtofp 7164696
RgX_is_QX 399938
RgX_is_ZX 22316472
RgX_is_monomial 1326904
RgX_is_rational 68156
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479448
RgX_shift_inplace_init 479448
RgX_to_RgV 140
Rg_col_ei 1451082
Rg_to_Fq 756
ZC_hnfrem 10697343
ZM_ZV_mod 610646
ZM_hnfrem 401412
ZM_lll 7136675
ZV_ZV_mod 8146972
ZV_dvd 23485
ZV_isscalar 23675265
ZV_to_zv 3211716
ZXQ_mul 2166234
ZXQ_sqr 960617
ZX_equal1 10488
ZX_is_monic 7319858
ZX_renormalize 157519831
Z_ispower 98
Z_issquare 509456
abgrp_get_cyc 12231191
abgrp_get_gen 1765025
abgrp_get_no 406737
absfrac 47729719
absfrac_shallow 28237
addmuliu 541635
addmuliu_inplace 59569410
affc_fixlg 249621
affgr 899650
bid_get_MOD 2157256
bid_get_U 3680233
bid_get_arch 41188
bid_get_archp 2397092
bid_get_cyc 5739782
bid_get_fact 2498903
bid_get_fact2 2201571
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804630
bid_get_ideal 72842
bid_get_mod 1521920
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157979
bin_copy 472949045
bit_accuracy 3142534757
bit_accuracy_mul 3175733
bit_prec 143406858
bnf_get_clgp 5375460
bnf_get_cyc 3686607
bnf_get_fu 25859
bnf_get_fu_nocheck 289076
bnf_get_gen 1680313
bnf_get_logfu 2874757
bnf_get_nf 9866270
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367772
bnf_get_tuN 282986
bnf_get_tuU 303568
bnr_get_bid 2046090
bnr_get_bnf 3710943
bnr_get_clgp 2830243
bnr_get_cyc 2522562
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77118
bnr_get_nf 1399084
bnr_get_no 277490
both_odd 123338716
cbrtr 0
cbrtr_abs 0
cgetalloc 10157
cgetc 975442
cgiv 105469741
checkell_i 8104028
closure_arity 356229952
closure_codestr 305803921
closure_get_code 28
closure_get_data 305752838
closure_get_dbg 13660
closure_get_frame 14690586
closure_get_oper 305780126
closure_get_text 37150
closure_is_variadic 45951601
col_ei 5925185
coltrunc_init 740257
const_col 9730099
const_vec 34636739
const_vecsmall 18860975
constant_coeff 1442694
cxcompotor 18239132
cxnorm 94252417
cxtofp 9093725
cxtoreal 337203
cyc_get_expo 2757533
cyclic_perm 99932
dbllog2r 94342157
degpol 5510021744
div_content 58511
divsBIL 8240120634
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 17049200
ell_get_a2 11108729
ell_get_a3 12863767
ell_get_a4 10325147
ell_get_a6 10371107
ell_get_b2 7371405
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11019035
ell_get_c6 13474680
ell_get_disc 16816344
ell_get_j 2126269
ell_get_type 14946203
ell_is_inf 50164990
ellff_get_a4a6 551469
ellff_get_field 1790627
ellinf 913918
ellnf_get_bnf 119
ellnf_get_nf 2027241
equali1 1171328471
equalim1 139546751
err_get_compo 294
err_get_num 62596
gaddgs 123271121
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80414
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 247009357
gc_INT 4138245247
gc_INT_affii 11570190
gc_all 102449041
gc_leaf 1161326804
gc_slice 2211514
gc_upto 1972793455
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 761933
gdivsg 561181
gen_I 1268865
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928583
get_F2x_mod 3307676
get_F2x_var 2168719
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82249547
get_Flx_mod 25497876
get_Flx_var 68242661
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 6969362
get_FpX_mod 3387874
get_FpX_var 6952155
gisdouble 2996660
gmax_shallow 13510228
gmaxsg 0
gmin_shallow 899719
gminsg 0
gmulgs 23888544
gmulgu 283360013
gsubgs 1731078
gtodouble 66254488
gtofp 257215086
gtomp 22428
gtos 85878200
gtou 100711
guncloneNULL 49821133
guncloneNULL_deep 1498236
gval 6237
hash_str 2781054
hash_str_len 31624569
icopy_avma 8056038760
idealchineseinit 5427
idealred 138818
identity_ZV 8120
identity_perm 3243453
identity_zv 3267815
inf_get_sign 1453245
inv_content 0
is_bigint 574389465
is_const_t 5001913207
is_extscalar_t 6904
is_intreal_t 9713153
is_matvec_t 743576377
is_noncalc_t 88516117
is_pm1 2217825766
is_qfb_t 0
is_rational_t 5016957
is_real_t 61900637
is_recursive_t 9112877756
is_scalar_t 403952648
is_universal_constant 326503871
is_vec_t 44046988
isint1 17994658
isintm1 6086895
isintzero 2848993147
ismpzero 9713047
isonstack 8360738179
killblock 1952944
leading_coeff 169347940
leafcopy_avma 593482504
lg_increase 440922100
lgcols 352766982
lgpol 2619813724
lincombii 38275729
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 755031
matpascal 4683
matslice 16824795
mkcol 10653875
mkcol2 157043218
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33579
mkcols 40411
mkcomplex 92023973
mkerr 0
mkfrac 42558391
mkfraccopy 5007078
mkfracss 1209563
mkintmod 8066795
mkintmodu 1834
mkmat 4780985
mkmat2 33656364
mkmat22 50261690
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122304
mkmoo 108903
mkoo 1332121
mkpadic 2009
mkpolmod 3075550
mkqfb 27929030
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 68948525
mkvec2 214289153
mkvec2copy 114533
mkvec2s 220743
mkvec3 119950832
mkvec3s 524441
mkvec4 10156499
mkvec4s 21
mkvec5 15187580
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140293738
mkvecsmall2 256955013
mkvecsmall3 103260170
mkvecsmall4 18664349
mkvecsmall5 1718729
modpr_get_T 13867055
modpr_get_p 1887626
modpr_get_pr 31236511
mul_content 2657516
mul_denom 10753480
mulsubii 3894089
nbits2extraprec 1497678127
nbits2ndec 228
nbits2nlong 12774971
nbits2prec 189021482
nbrows 158347943
nchar2nlong 127847407
ndec2nbits 8270
ndec2nlong 41626
ndec2prec 33356
nfV_to_scalar_or_alg 26300
nf_get_G 304887
nf_get_M 21741438
nf_get_Tr 23348
nf_get_degree 71376507
nf_get_diff 4445
nf_get_disc 463572
nf_get_index 3711967
nf_get_invzk 9774605
nf_get_pol 98119478
nf_get_r1 23466318
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628920
nf_get_roundG 1748566
nf_get_sign 519602
nf_get_varn 1503753
nf_get_zk 4382
nf_get_zkden 5462165
nf_get_zkprimpart 5416314
normalize_frac 17568482
odd 2124324267
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 487293370
pari_malloc 723424942
pari_realloc 1887
pari_realloc_ip 2348193
pari_stack_alloc 1005673956
pari_stack_base 1011467113
pari_stack_delete 5853110
pari_stack_init 6347243
pari_stack_new 910304615
pari_stack_pushp 5842
perm_conj 418299
perm_inv 3747445
perm_mul 80957468
perm_sqr 728
pol0_F2x 17310205
pol0_Flx 111601284
pol1_F2x 4769077
pol1_Flx 55724849
pol_0 27168794
pol_1 3752574
pol_x 3865125
pol_xn 2253494
pol_xnall 294
polx_F2x 1074034
polx_Flx 37496002
polx_zx 0
polxn_Flx 371
powIs 620095
powii 43129910
pr_get_e 16167739
pr_get_f 26444669
pr_get_gen 12072462
pr_get_p 92761704
pr_get_tau 49774021
pr_is_inert 17224683
pr_norm 1090615
prec2lg 4566140542
prec2nbits 106961905
prec2nbits_mul 581096
prec2ndec 9778
precdbl 476397
qfb_disc 18502575
qfb_disc3 4995428
qfb_is_qfi 64518231
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8148582732
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 763903
row_i 987
rowcopy 204988
rowpermute 14759150
rowslice 79464740
rowslicepermute 234596
rowsplice 273
ser_isexactzero 11434317
shallowcopy 27897408
sqrfrac 4200938
sqrti 6612473
sqrtnr 2810816
sqrtr 87175409
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60081340
truecoef 0
trunc_safe 0
ulogint 2086101
upr_norm 346136
uutoQ 1602144
vec_append 3469001
vec_ei 1714738
vec_lengthen 18960
vec_prepend 313915
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4040773
veclast 9374228
vecmodii 0
vecmoduu 49784
vecpermute 21109780
vecreverse 697305
vecreverse_inplace 2605
vecslice 657513777
vecslicepermute 2858828
vecsmall_append 4114698
vecsmall_coincidence 0
vecsmall_concat 1464623
vecsmall_copy 7341188
vecsmall_ei 585133
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1177573
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75756
vecsmall_to_col 7925260
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78760962
vecsmalltrunc_append 100887195
vecsmalltrunc_init 242021859
vecsplice 385004
vectrunc_append 15854894
vectrunc_append_batch 9667
vectrunc_init 11767859
zc_to_ZC 7910715
zero_F2m 0
zero_F2m_copy 845231
zero_F2v 3656470
zero_F2x 1181
zero_Flm 2831138
zero_Flm_copy 238317
zero_Flv 61979076
zero_Flx 3255579
zero_zm 0
zero_zv 39498616
zero_zx 0
zerocol 125186746
zeromat 109021
zeromatcopy 14379271
zeropadic 857408
zeropadic_shallow 17150
zeropol 12889613
zeroser 139013
zerovec 29348419
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 1687949
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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