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 30831-19b50a36d0) Lines: 1421 1535 92.6 %
Date: 2026-04-22 09:25:48 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 8359371
F2m_copy 200668
F2m_flip 1554417
F2m_set 798
F2v_clear 12362264
F2v_coeff 664439798
F2v_copy 4487
F2v_ei 42
F2v_flip 1554417
F2v_set 104115429
F2v_to_F2x 38084
F2xX_shift 0
F2x_clear 12362258
F2x_coeff 671043085
F2x_copy 64618079
F2x_div 1571296
F2x_equal 4190174
F2x_equal1 2873799
F2x_flip 1554417
F2x_renormalize 127794809
F2x_set 129962295
F2xqX_div 33173
F3m_coeff 3255604
F3m_copy 0
F3m_set 0
Flm_copy 6434470
Flm_row 8743779
Flv_copy 2059160
Flx_constant 1091445
Flx_copy 175763195
Flx_div 1999808
Flx_div_pre 21704139
Flx_equal1 8195967
Flx_lead 1068696
Flx_mulu 1105335
FlxqX_div 0
FlxqX_div_pre 165409
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4691856
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582133
FpX_renormalize 147163312
Fp_add 183402037
Fp_addmul 11268588
Fp_center 77245263
Fp_center_i 18025205
Fp_div 15035785
Fp_divu 15130338
Fp_double 20878605
Fp_halve 247271
Fp_inv 23412842
Fp_invsafe 1097237
Fp_mul 203650964
Fp_muls 17780
Fp_mulu 65439523
Fp_neg 32671597
Fp_red 82928872
Fp_sqr 64086646
Fp_sub 202021909
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 573011
FqX_Fq_mul 427293
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 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 368263
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 3106181
Fq_to_FpXQ 73652
GENbinbase 919088358
QV_isscalar 54419136
Q_abs 8078354
Q_abs_shallow 120237
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619941
RgC_gtofp 34033098
RgC_gtomp 574
RgM_dimensions 9954852
RgM_fpnorml2 22654
RgM_gtofp 8257771
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22226562
RgV_gtofp 56
RgV_is_QV 141993
RgV_is_ZV 32096671
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210267
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102503663
RgX_div 6998185
RgX_equal_var 26880489
RgX_fpnorml2 61607
RgX_gtofp 7164768
RgX_is_QX 399933
RgX_is_ZX 22316264
RgX_is_monomial 1326863
RgX_is_rational 68158
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
RgX_to_RgV 140
Rg_col_ei 1451075
Rg_to_Fq 756
ZC_hnfrem 10697346
ZM_ZV_mod 610738
ZM_hnfrem 401389
ZM_lll 7136350
ZV_ZV_mod 8147154
ZV_dvd 23485
ZV_isscalar 23675091
ZV_to_zv 3211715
ZXQ_mul 2166185
ZXQ_sqr 960607
ZX_equal1 10488
ZX_is_monic 7319818
ZX_renormalize 157559318
Z_ispower 98
Z_issquare 509458
abgrp_get_cyc 12231170
abgrp_get_gen 1765036
abgrp_get_no 406734
absfrac 47729512
absfrac_shallow 28237
addmuliu 541626
addmuliu_inplace 59629086
affc_fixlg 249623
affgr 899608
bid_get_MOD 2157253
bid_get_U 3680229
bid_get_arch 41187
bid_get_archp 2397089
bid_get_cyc 5739783
bid_get_fact 2498913
bid_get_fact2 2201571
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804630
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157976
bin_copy 472927731
bit_accuracy 3145718537
bit_accuracy_mul 3175715
bit_prec 143387345
bnf_get_clgp 5375483
bnf_get_cyc 3686617
bnf_get_fu 25859
bnf_get_fu_nocheck 289092
bnf_get_gen 1680323
bnf_get_logfu 2874762
bnf_get_nf 9866317
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367771
bnf_get_tuN 283003
bnf_get_tuU 303582
bnr_get_bid 2046092
bnr_get_bnf 3710940
bnr_get_clgp 2830219
bnr_get_cyc 2522543
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399079
bnr_get_no 277485
both_odd 123181077
cbrtr 0
cbrtr_abs 0
cgetalloc 10157
cgetc 975459
cgiv 105480794
checkell_i 8103899
closure_arity 356513611
closure_codestr 306097584
closure_get_code 28
closure_get_data 306050127
closure_get_dbg 13660
closure_get_frame 14678020
closure_get_oper 306074065
closure_get_text 37150
closure_is_variadic 45927719
col_ei 5925258
coltrunc_init 740257
const_col 9730096
const_vec 34628269
const_vecsmall 18860764
constant_coeff 1442659
cxcompotor 18237259
cxnorm 94249841
cxtofp 9092790
cxtoreal 337206
cyc_get_expo 2757523
cyclic_perm 99932
dbllog2r 94339614
degpol 5505327608
div_content 58511
divsBIL 8239231757
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 17049199
ell_get_a2 11108728
ell_get_a3 12863766
ell_get_a4 10325146
ell_get_a6 10371106
ell_get_b2 7371405
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11018703
ell_get_c6 13474297
ell_get_disc 16815403
ell_get_j 2126269
ell_get_type 14945804
ell_is_inf 50163601
ellff_get_a4a6 551466
ellff_get_field 1790620
ellinf 913939
ellnf_get_bnf 119
ellnf_get_nf 2027222
equali1 1171350741
equalim1 139546855
err_get_compo 294
err_get_num 62596
gaddgs 123271969
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 246976715
gc_INT 4138397175
gc_INT_affii 11572169
gc_all 102447509
gc_leaf 1160595221
gc_slice 2211602
gc_upto 1972576780
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 761925
gdivsg 561178
gen_I 1268862
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928628
get_F2x_mod 3307707
get_F2x_var 2168756
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82125999
get_Flx_mod 25494610
get_Flx_var 68236076
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 6969185
get_FpX_mod 3387870
get_FpX_var 6952323
gisdouble 2995528
gmax_shallow 13510226
gmaxsg 0
gmin_shallow 899735
gminsg 0
gmulgs 23818709
gmulgu 283360013
gsubgs 1731926
gtodouble 66249423
gtofp 257194383
gtomp 22428
gtos 85866141
gtou 100703
guncloneNULL 49822182
guncloneNULL_deep 1504708
gval 6230
hash_str 2779149
hash_str_len 31617971
icopy_avma 8055546867
idealchineseinit 5427
idealred 138817
identity_ZV 8120
identity_perm 3243158
identity_zv 3267521
inf_get_sign 1453222
inv_content 0
is_bigint 574354887
is_const_t 5002522355
is_extscalar_t 6904
is_intreal_t 9712976
is_matvec_t 743856417
is_noncalc_t 88515476
is_pm1 2217568387
is_qfb_t 0
is_rational_t 5017725
is_real_t 61900623
is_recursive_t 9110975599
is_scalar_t 403951384
is_universal_constant 326378829
is_vec_t 44036571
isint1 17994605
isintm1 6086883
isintzero 2848759488
ismpzero 9712891
isonstack 8360906689
killblock 1955130
leading_coeff 169343572
leafcopy_avma 592014319
lg_increase 429370595
lgcols 352751156
lgpol 2620754775
lincombii 38259940
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 755013
matpascal 4683
matslice 16824632
mkcol 10654099
mkcol2 157026474
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33583
mkcols 40411
mkcomplex 92014307
mkerr 0
mkfrac 42554287
mkfraccopy 5006814
mkfracss 1209563
mkintmod 8066799
mkintmodu 1834
mkmat 4780801
mkmat2 33656124
mkmat22 50257977
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122318
mkmoo 108899
mkoo 1332101
mkpadic 2009
mkpolmod 3075534
mkqfb 27928638
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 68930620
mkvec2 212451304
mkvec2copy 114532
mkvec2s 220739
mkvec3 119581139
mkvec3s 524441
mkvec4 10150227
mkvec4s 21
mkvec5 15187643
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140335250
mkvecsmall2 256936482
mkvecsmall3 103251470
mkvecsmall4 18661379
mkvecsmall5 1718720
modpr_get_T 13867028
modpr_get_p 1887627
modpr_get_pr 31236402
mul_content 2657436
mul_denom 10753247
mulsubii 3893196
nbits2extraprec 1497512382
nbits2ndec 228
nbits2nlong 12752674
nbits2prec 188998974
nbrows 158333808
nchar2nlong 127829745
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304793
nf_get_M 21741274
nf_get_Tr 23349
nf_get_degree 71374999
nf_get_diff 4445
nf_get_disc 463581
nf_get_index 3712002
nf_get_invzk 9774620
nf_get_pol 98117934
nf_get_r1 23466151
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628840
nf_get_roundG 1748481
nf_get_sign 519600
nf_get_varn 1503755
nf_get_zk 4382
nf_get_zkden 5462105
nf_get_zkprimpart 5416345
normalize_frac 17568614
odd 2124885502
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 487278006
pari_malloc 723386875
pari_realloc 1887
pari_realloc_ip 2342991
pari_stack_alloc 1005779323
pari_stack_base 1011637992
pari_stack_delete 5860261
pari_stack_init 6332185
pari_stack_new 910470030
pari_stack_pushp 5842
perm_conj 418299
perm_inv 3747358
perm_mul 80952248
perm_sqr 728
pol0_F2x 17360404
pol0_Flx 111642575
pol1_F2x 4769123
pol1_Flx 55717933
pol_0 27168548
pol_1 3752529
pol_x 3865076
pol_xn 2253491
pol_xnall 294
polx_F2x 1079101
polx_Flx 37492942
polx_zx 0
polxn_Flx 371
powIs 620095
powii 43130053
pr_get_e 16167417
pr_get_f 26444679
pr_get_gen 12072573
pr_get_p 92760989
pr_get_tau 49773497
pr_is_inert 17224215
pr_norm 1090533
prec2lg 4566453729
prec2nbits 106956032
prec2nbits_mul 581095
prec2ndec 9778
precdbl 476396
qfb_disc 18502496
qfb_disc3 4995283
qfb_is_qfi 64515504
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8148578277
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 14758318
rowslice 79450448
rowslicepermute 234161
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27896510
sqrfrac 4201749
sqrti 6612718
sqrtnr 2810650
sqrtr 87172398
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60137307
truecoef 0
trunc_safe 0
ulogint 2095054
upr_norm 346136
uutoQ 1602144
vec_append 3469026
vec_ei 1714751
vec_lengthen 18960
vec_prepend 313919
vec_setconst 0
vec_shorten 11556
vec_to_vecsmall 4040793
veclast 9374250
vecmodii 0
vecmoduu 49784
vecpermute 21107183
vecreverse 697305
vecreverse_inplace 2605
vecslice 657373537
vecslicepermute 2857337
vecsmall_append 4114708
vecsmall_coincidence 0
vecsmall_concat 1464638
vecsmall_copy 7341132
vecsmall_ei 585119
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043256
vecsmall_max 1177545
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75755
vecsmall_to_col 7924629
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78755859
vecsmalltrunc_append 100803663
vecsmalltrunc_init 238173388
vecsplice 385003
vectrunc_append 15856835
vectrunc_append_batch 9667
vectrunc_init 11768538
zc_to_ZC 7910072
zero_F2m 0
zero_F2m_copy 845294
zero_F2v 3656704
zero_F2x 1181
zero_Flm 2830863
zero_Flm_copy 238328
zero_Flv 61990420
zero_Flx 3255863
zero_zm 0
zero_zv 39510264
zero_zx 0
zerocol 125177775
zeromat 108947
zeromatcopy 14378493
zeropadic 856720
zeropadic_shallow 17150
zeropol 12889510
zeroser 138992
zerovec 29348393
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 1687893
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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