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: 1421 1535 92.6 %
Date: 2026-04-25 09:26:46 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 8363164
F2m_copy 200664
F2m_flip 1554246
F2m_set 798
F2v_clear 12361797
F2v_coeff 664441856
F2v_copy 4487
F2v_ei 42
F2v_flip 1554246
F2v_set 104115782
F2v_to_F2x 38065
F2xX_shift 0
F2x_clear 12361793
F2x_coeff 671077963
F2x_copy 64614850
F2x_div 1570977
F2x_equal 4188069
F2x_equal1 2873620
F2x_flip 1554246
F2x_renormalize 127820915
F2x_set 129988513
F2xqX_div 33173
F3m_coeff 3255605
F3m_copy 0
F3m_set 0
Flm_copy 6434522
Flm_row 8743626
Flv_copy 2059244
Flx_constant 1091684
Flx_copy 175806524
Flx_div 1999824
Flx_div_pre 21706377
Flx_equal1 8196005
Flx_lead 1069170
Flx_mulu 1105481
FlxqX_div 0
FlxqX_div_pre 165409
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4692531
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582186
FpX_renormalize 147162142
Fp_add 183438342
Fp_addmul 11275801
Fp_center 77251898
Fp_center_i 18049795
Fp_div 15033672
Fp_divu 15128203
Fp_double 20882457
Fp_halve 247271
Fp_inv 23413169
Fp_invsafe 1097245
Fp_mul 203692779
Fp_muls 17780
Fp_mulu 65299088
Fp_neg 32672619
Fp_red 82930553
Fp_sqr 64156148
Fp_sub 202075077
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 573025
FqX_Fq_mul 427295
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 445781
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 368260
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 3106389
Fq_to_FpXQ 73652
GENbinbase 919115988
QV_isscalar 54419528
Q_abs 8078488
Q_abs_shallow 120228
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619943
RgC_gtofp 34032958
RgC_gtomp 574
RgM_dimensions 9955139
RgM_fpnorml2 22655
RgM_gtofp 8257836
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22227130
RgV_gtofp 56
RgV_is_QV 142001
RgV_is_ZV 32096671
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210273
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102503977
RgX_div 6998185
RgX_equal_var 26880486
RgX_fpnorml2 61607
RgX_gtofp 7164630
RgX_is_QX 399942
RgX_is_ZX 22316721
RgX_is_monomial 1326940
RgX_is_rational 68156
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479468
RgX_shift_inplace_init 479468
RgX_to_RgV 140
Rg_col_ei 1451081
Rg_to_Fq 756
ZC_hnfrem 10697377
ZM_ZV_mod 610708
ZM_hnfrem 401358
ZM_lll 7136401
ZV_ZV_mod 8147198
ZV_dvd 23485
ZV_isscalar 23675319
ZV_to_zv 3211715
ZXQ_mul 2166263
ZXQ_sqr 960621
ZX_equal1 10488
ZX_is_monic 7319880
ZX_renormalize 157535541
Z_ispower 98
Z_issquare 509445
abgrp_get_cyc 12231257
abgrp_get_gen 1765026
abgrp_get_no 406723
absfrac 47729860
absfrac_shallow 28237
addmuliu 541653
addmuliu_inplace 59629802
affc_fixlg 249623
affgr 899608
bid_get_MOD 2157246
bid_get_U 3680221
bid_get_arch 41188
bid_get_archp 2397100
bid_get_cyc 5739807
bid_get_fact 2498921
bid_get_fact2 2201572
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804662
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157977
bin_copy 472943630
bit_accuracy 3146063273
bit_accuracy_mul 3175715
bit_prec 143388555
bnf_get_clgp 5375460
bnf_get_cyc 3686607
bnf_get_fu 25858
bnf_get_fu_nocheck 289079
bnf_get_gen 1680313
bnf_get_logfu 2874764
bnf_get_nf 9866319
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367773
bnf_get_tuN 282996
bnf_get_tuU 303576
bnr_get_bid 2046090
bnr_get_bnf 3710948
bnr_get_clgp 2830249
bnr_get_cyc 2522576
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399077
bnr_get_no 277488
both_odd 123467181
cbrtr 0
cbrtr_abs 0
cgetalloc 10157
cgetc 975446
cgiv 105478103
checkell_i 8104036
closure_arity 356524733
closure_codestr 306085970
closure_get_code 28
closure_get_data 306044559
closure_get_dbg 13660
closure_get_frame 14690390
closure_get_oper 306066222
closure_get_text 37150
closure_is_variadic 45951361
col_ei 5925287
coltrunc_init 740257
const_col 9730146
const_vec 34638499
const_vecsmall 18860959
constant_coeff 1442680
cxcompotor 18241716
cxnorm 94254474
cxtofp 9095023
cxtoreal 337207
cyc_get_expo 2757555
cyclic_perm 99932
dbllog2r 94343296
degpol 5509103620
div_content 58514
divsBIL 8241561308
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 11108731
ell_get_a3 12863766
ell_get_a4 10325149
ell_get_a6 10371109
ell_get_b2 7371402
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11018892
ell_get_c6 13474547
ell_get_disc 16816011
ell_get_j 2126269
ell_get_type 14946161
ell_is_inf 50194213
ellff_get_a4a6 551466
ellff_get_field 1790623
ellinf 913925
ellnf_get_bnf 119
ellnf_get_nf 2027249
equali1 1171328376
equalim1 139546930
err_get_compo 294
err_get_num 62596
gaddgs 123271964
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80416
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 247004570
gc_INT 4136886004
gc_INT_affii 11572583
gc_all 102448344
gc_leaf 1160593765
gc_slice 2211604
gc_upto 1972701989
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 761938
gdivsg 561179
gen_I 1268872
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928655
get_F2x_mod 3307642
get_F2x_var 2168832
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82056204
get_Flx_mod 25499703
get_Flx_var 68244738
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 6969368
get_FpX_mod 3387883
get_FpX_var 6952344
gisdouble 2995571
gmax_shallow 13510226
gmaxsg 0
gmin_shallow 899771
gminsg 0
gmulgs 23818529
gmulgu 283360013
gsubgs 1731931
gtodouble 66256619
gtofp 257187789
gtomp 22428
gtos 85878177
gtou 100717
guncloneNULL 49817668
guncloneNULL_deep 1499689
gval 6230
hash_str 2781047
hash_str_len 31624165
icopy_avma 8055661302
idealchineseinit 5427
idealred 138820
identity_ZV 8120
identity_perm 3243112
identity_zv 3267475
inf_get_sign 1453301
inv_content 0
is_bigint 574358895
is_const_t 5001479214
is_extscalar_t 6904
is_intreal_t 9712877
is_matvec_t 743816120
is_noncalc_t 88515759
is_pm1 2217510974
is_qfb_t 0
is_rational_t 5017779
is_real_t 61900631
is_recursive_t 9111884647
is_scalar_t 403953034
is_universal_constant 326482237
is_vec_t 44028187
isint1 17994674
isintm1 6086948
isintzero 2847981523
ismpzero 9712764
isonstack 8359241138
killblock 1953351
leading_coeff 169350222
leafcopy_avma 592938522
lg_increase 426948541
lgcols 352760406
lgpol 2621654675
lincombii 38271207
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 755019
matpascal 4683
matslice 16825345
mkcol 10654065
mkcol2 157045765
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33585
mkcols 40411
mkcomplex 92035644
mkerr 0
mkfrac 42552921
mkfraccopy 5007093
mkfracss 1209561
mkintmod 8066746
mkintmodu 1834
mkmat 4780937
mkmat2 33655872
mkmat22 50261438
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122309
mkmoo 108904
mkoo 1332176
mkpadic 2009
mkpolmod 3075553
mkqfb 27928645
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 68966223
mkvec2 211776426
mkvec2copy 114534
mkvec2s 220743
mkvec3 119358654
mkvec3s 524441
mkvec4 10156520
mkvec4s 21
mkvec5 15187694
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140354435
mkvecsmall2 256967415
mkvecsmall3 103258510
mkvecsmall4 18656274
mkvecsmall5 1718750
modpr_get_T 13867096
modpr_get_p 1887627
modpr_get_pr 31236630
mul_content 2657384
mul_denom 10753463
mulsubii 3893862
nbits2extraprec 1497493876
nbits2ndec 228
nbits2nlong 12754392
nbits2prec 188998332
nbrows 158339215
nchar2nlong 127843664
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304805
nf_get_M 21741504
nf_get_Tr 23350
nf_get_degree 71375822
nf_get_diff 4445
nf_get_disc 463582
nf_get_index 3712015
nf_get_invzk 9774706
nf_get_pol 98118939
nf_get_r1 23466463
nf_get_r2 4154
nf_get_ramified_primes 64644
nf_get_roots 1628837
nf_get_roundG 1748487
nf_get_sign 519602
nf_get_varn 1503752
nf_get_zk 4382
nf_get_zkden 5462167
nf_get_zkprimpart 5416353
normalize_frac 17569406
odd 2123876169
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 487289855
pari_malloc 723426524
pari_realloc 1887
pari_realloc_ip 2349392
pari_stack_alloc 1005860605
pari_stack_base 1011705311
pari_stack_delete 5845757
pari_stack_init 6347479
pari_stack_new 910526496
pari_stack_pushp 5842
perm_conj 418299
perm_inv 3747401
perm_mul 80955036
perm_sqr 728
pol0_F2x 17360235
pol0_Flx 111660622
pol1_F2x 4769558
pol1_Flx 55727831
pol_0 27168726
pol_1 3752584
pol_x 3865192
pol_xn 2253518
pol_xnall 294
polx_F2x 1079027
polx_Flx 37499875
polx_zx 0
polxn_Flx 371
powIs 620095
powii 43130075
pr_get_e 16167361
pr_get_f 26444039
pr_get_gen 12072416
pr_get_p 92760611
pr_get_tau 49773123
pr_is_inert 17224152
pr_norm 1090519
prec2lg 4565297859
prec2nbits 106957707
prec2nbits_mul 581096
prec2ndec 9778
precdbl 476406
qfb_disc 18502564
qfb_disc3 4995262
qfb_is_qfi 64522780
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8149869934
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 763906
row_i 987
rowcopy 204988
rowpermute 14758636
rowslice 79464670
rowslicepermute 234396
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27897032
sqrfrac 4201870
sqrti 6612725
sqrtnr 2810658
sqrtr 87177303
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60139510
truecoef 0
trunc_safe 0
ulogint 2082154
upr_norm 346135
uutoQ 1602144
vec_append 3469018
vec_ei 1714732
vec_lengthen 18960
vec_prepend 313931
vec_setconst 0
vec_shorten 11555
vec_to_vecsmall 4040797
veclast 9374222
vecmodii 0
vecmoduu 49784
vecpermute 21109386
vecreverse 697304
vecreverse_inplace 2605
vecslice 657470799
vecslicepermute 2858140
vecsmall_append 4114720
vecsmall_coincidence 0
vecsmall_concat 1464649
vecsmall_copy 7341170
vecsmall_ei 585174
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1177639
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75754
vecsmall_to_col 7925102
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78758630
vecsmalltrunc_append 100902692
vecsmalltrunc_init 236916874
vecsplice 385003
vectrunc_append 15856645
vectrunc_append_batch 9667
vectrunc_init 11769401
zc_to_ZC 7910556
zero_F2m 0
zero_F2m_copy 845269
zero_F2v 3656618
zero_F2x 1181
zero_Flm 2830741
zero_Flm_copy 238309
zero_Flv 61991686
zero_Flx 3255750
zero_zm 0
zero_zv 39511392
zero_zx 0
zerocol 125179078
zeromat 108975
zeromatcopy 14378640
zeropadic 857686
zeropadic_shallow 17150
zeropol 12889637
zeroser 138992
zerovec 29348491
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 1687987
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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