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 30604-e5d817ee12) Lines: 1420 1535 92.5 %
Date: 2026-01-09 09:21:43 Functions: 649 707 91.8 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
F2m_clear 0
F2m_coeff 8038259
F2m_copy 200479
F2m_flip 1554050
F2m_set 798
F2v_clear 12353547
F2v_coeff 661317977
F2v_copy 4487
F2v_ei 42
F2v_flip 1554050
F2v_set 101402993
F2v_to_F2x 37820
F2xX_shift 0
F2x_clear 12353552
F2x_coeff 667819295
F2x_copy 60486342
F2x_div 1569942
F2x_equal 4662452
F2x_equal1 2874108
F2x_flip 1554050
F2x_renormalize 115295222
F2x_set 124729083
F2xqX_div 33173
F3m_coeff 3255866
F3m_copy 0
F3m_set 0
Flm_copy 6433533
Flm_row 8741222
Flv_copy 2554898
Flx_constant 333933
Flx_copy 173194560
Flx_div 1997949
Flx_div_pre 21688912
Flx_equal1 8329984
Flx_lead 978869
Flx_mulu 1105373
FlxqX_div 0
FlxqX_div_pre 165417
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694418
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581154
FpX_renormalize 144212230
Fp_add 180868274
Fp_addmul 11215143
Fp_center 77175891
Fp_center_i 18009937
Fp_div 15035749
Fp_divu 15130100
Fp_double 20755441
Fp_halve 247271
Fp_inv 23440766
Fp_invsafe 1100357
Fp_mul 200685511
Fp_muls 17780
Fp_mulu 68006512
Fp_neg 31475462
Fp_red 82195073
Fp_sqr 63172685
Fp_sub 202222479
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 571444
FqX_Fq_mul 427300
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38566
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444668
FqX_factor 140946
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 367701
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 3106263
Fq_to_FpXQ 73652
GENbinbase 961880380
QV_isscalar 54416119
Q_abs 8062531
Q_abs_shallow 120235
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619848
RgC_gtofp 34027667
RgC_gtomp 574
RgM_dimensions 9741905
RgM_fpnorml2 22662
RgM_gtofp 8257498
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179268
RgV_gtofp 56
RgV_is_QV 140730
RgV_is_ZV 32158276
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210268
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406880
RgX_div 7000642
RgX_equal_var 26883013
RgX_fpnorml2 61495
RgX_gtofp 7144616
RgX_is_QX 399932
RgX_is_ZX 22423098
RgX_is_monomial 1331356
RgX_is_rational 68164
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479367
RgX_shift_inplace_init 479367
RgX_to_RgV 140
Rg_col_ei 1451069
Rg_to_Fq 756
ZC_hnfrem 10697464
ZM_ZV_mod 596451
ZM_hnfrem 363813
ZM_lll 7117490
ZV_ZV_mod 8131458
ZV_dvd 23485
ZV_isscalar 23674482
ZV_to_zv 3211407
ZXQ_mul 2161046
ZXQ_sqr 960248
ZX_equal1 12850
ZX_is_monic 7374276
ZX_renormalize 154978708
Z_ispower 98
Z_issquare 458711
abgrp_get_cyc 12230793
abgrp_get_gen 1765022
abgrp_get_no 354948
absfrac 46638584
absfrac_shallow 28237
addmuliu 535691
addmuliu_inplace 59631599
affc_fixlg 249621
affgr 898866
bid_get_MOD 2157243
bid_get_U 3680214
bid_get_arch 41188
bid_get_archp 2397101
bid_get_cyc 5739815
bid_get_fact 2498928
bid_get_fact2 2201570
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804665
bid_get_ideal 72842
bid_get_mod 1521920
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157963
bin_copy 496046419
bit_accuracy 3159552544
bit_accuracy_mul 3175472
bit_prec 143237908
bnf_get_clgp 5374998
bnf_get_cyc 3686146
bnf_get_fu 25855
bnf_get_fu_nocheck 289089
bnf_get_gen 1680312
bnf_get_logfu 2874759
bnf_get_nf 9865148
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367776
bnf_get_tuN 283002
bnf_get_tuU 303582
bnr_get_bid 2046101
bnr_get_bnf 3710945
bnr_get_clgp 2830265
bnr_get_cyc 2522586
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399076
bnr_get_no 277488
both_odd 123843223
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975458
cgiv 102676563
checkell_i 5593163
closure_arity 371469908
closure_codestr 321610823
closure_get_code 0
closure_get_data 321579389
closure_get_dbg 13628
closure_get_frame 14157904
closure_get_oper 321600235
closure_get_text 37065
closure_is_variadic 44789503
col_ei 5924596
coltrunc_init 740250
const_col 9729662
const_vec 34478262
const_vecsmall 19705718
constant_coeff 1441143
cxcompotor 18210562
cxnorm 91198533
cxtofp 9079396
cxtoreal 337205
cyc_get_expo 2757440
cyclic_perm 99911
dbllog2r 92814159
degpol 5493464378
div_content 58504
divsBIL 8090666957
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997061
ell_get_a2 7106175
ell_get_a3 8814029
ell_get_a4 8536716
ell_get_a6 10370954
ell_get_b2 7371015
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017506
ell_get_c6 13473956
ell_get_disc 16814372
ell_get_j 2126269
ell_get_type 12498575
ell_is_inf 52382710
ellff_get_a4a6 800016
ellff_get_field 2036831
ellinf 1869935
ellnf_get_bnf 119
ellnf_get_nf 2027234
equali1 1174357522
equalim1 139505076
err_get_compo 294
err_get_num 62536
gaddgs 123248612
gal_get_den 27867
gal_get_e 91
gal_get_gen 15435
gal_get_group 80386
gal_get_invvdm 27874
gal_get_mod 23758
gal_get_orders 6678
gal_get_p 6006
gal_get_pol 36316
gal_get_roots 32732
gc_GEN 255438731
gc_INT 4111103132
gc_INT_affii 8488913
gc_all 109636255
gc_leaf 1137522251
gc_slice 2204020
gc_upto 1953497115
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 761926
gdivsg 531590
gen_I 1269740
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928888
get_F2x_mod 2499188
get_F2x_var 2533814
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82547791
get_Flx_mod 25594379
get_Flx_var 68349618
get_FlxqX_degree 317565
get_FlxqX_mod 8033
get_FlxqX_var 264420
get_FpXQX_degree 3589
get_FpXQX_mod 146583
get_FpXQX_var 51630
get_FpX_degree 6424413
get_FpX_mod 3394352
get_FpX_var 6958021
gisdouble 2995819
gmax_shallow 13510199
gmaxsg 0
gmin_shallow 877693
gminsg 0
gmulgs 22583148
gmulgu 282059384
gsubgs 1724798
gtodouble 60775584
gtofp 254267516
gtomp 22428
gtos 85855677
gtou 99515
guncloneNULL 47931886
guncloneNULL_deep 1435212
gval 6230
hash_str 2756815
hash_str_len 31544896
icopy_avma 8039561184
idealchineseinit 5427
idealred 138440
identity_ZV 8113
identity_perm 3241231
identity_zv 3265581
inf_get_sign 1452934
inv_content 0
is_bigint 563384911
is_const_t 4896965745
is_extscalar_t 6876
is_intreal_t 9584524
is_matvec_t 659533663
is_noncalc_t 85871181
is_pm1 2205538994
is_qfb_t 0
is_rational_t 5032410
is_real_t 62062466
is_recursive_t 9234087914
is_scalar_t 375657557
is_universal_constant 325945283
is_vec_t 43953183
isint1 17584801
isintm1 5710168
isintzero 2843629110
ismpzero 9584410
isonstack 8272972051
killblock 1919488
leading_coeff 170261512
leafcopy_avma 577292087
lg_increase 314464346
lgcols 351583307
lgpol 2688108902
lincombii 38223449
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 754830
matpascal 3983
matslice 16818061
mkcol 10639654
mkcol2 156870255
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33558
mkcols 40411
mkcomplex 91611096
mkerr 0
mkfrac 41639091
mkfraccopy 4999538
mkfracss 1209563
mkintmod 8092547
mkintmodu 1813
mkmat 4751008
mkmat2 33654213
mkmat22 50279644
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122294
mkmoo 108790
mkoo 1331884
mkpadic 2009
mkpolmod 3103726
mkqfb 27929907
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71084401
mkvec2 184709254
mkvec2copy 114531
mkvec2s 220249
mkvec3 118681736
mkvec3s 524441
mkvec4 10093762
mkvec4s 21
mkvec5 15185666
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131630597
mkvecsmall2 234837496
mkvecsmall3 104166877
mkvecsmall4 18649269
mkvecsmall5 1717467
modpr_get_T 13866907
modpr_get_p 1887627
modpr_get_pr 31236626
mul_content 2657155
mul_denom 10707700
mulsubii 3880367
nbits2extraprec 1457853109
nbits2ndec 228
nbits2nlong 12745503
nbits2prec 186120274
nbrows 157459477
nchar2nlong 127385608
ndec2nbits 8270
ndec2nlong 41549
ndec2prec 33279
nfV_to_scalar_or_alg 26300
nf_get_G 304888
nf_get_M 21745200
nf_get_Tr 22083
nf_get_degree 71369909
nf_get_diff 4445
nf_get_disc 463472
nf_get_index 3711382
nf_get_invzk 9767337
nf_get_pol 98108115
nf_get_r1 23465674
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628949
nf_get_roundG 1748196
nf_get_sign 519550
nf_get_varn 1503562
nf_get_zk 4382
nf_get_zkden 5459825
nf_get_zkprimpart 5414016
normalize_frac 17205720
odd 2089253710
pari_calloc 47720
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 84
pari_err_DIM 718
pari_err_DOMAIN 2862
pari_err_FILE 0
pari_err_FILEDESC 36
pari_err_FLAG 98
pari_err_IMPL 539
pari_err_INV 20018
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 509448573
pari_malloc 745346525
pari_realloc 1890
pari_realloc_ip 2254987
pari_stack_alloc 1019671877
pari_stack_base 1025196678
pari_stack_delete 5582036
pari_stack_init 6051528
pari_stack_new 924988129
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781836
perm_mul 80887221
perm_sqr 728
pol0_F2x 13239421
pol0_Flx 103469810
pol1_F2x 3956277
pol1_Flx 55051590
pol_0 82996677
pol_1 3755613
pol_x 3856950
pol_xn 2249249
pol_xnall 294
polx_F2x 1078034
polx_Flx 37485023
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130378
pr_get_e 16161955
pr_get_f 26442990
pr_get_gen 12071077
pr_get_p 92750338
pr_get_tau 49768310
pr_is_inert 17223998
pr_norm 1090500
prec2lg 4468250909
prec2nbits 103963393
prec2nbits_mul 581161
prec2ndec 9778
precdbl 475372
qfb_disc 18502546
qfb_disc3 4995883
qfb_is_qfi 62323245
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8000047862
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 763880
row_i 987
rowcopy 204988
rowpermute 14705065
rowslice 79297215
rowslicepermute 185114
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27631781
sqrfrac 4148172
sqrti 6610149
sqrtnr 2810095
sqrtr 80369910
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60123796
truecoef 0
trunc_safe 0
ulogint 1715497
upr_norm 346136
uutoQ 1600198
vec_append 3465042
vec_ei 1713828
vec_lengthen 18960
vec_prepend 314000
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036618
veclast 9372696
vecmodii 0
vecmoduu 49784
vecpermute 20548091
vecreverse 697277
vecreverse_inplace 2605
vecslice 655868288
vecslicepermute 2690275
vecsmall_append 4099608
vecsmall_coincidence 0
vecsmall_concat 1464230
vecsmall_copy 4403806
vecsmall_ei 584702
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1164058
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75637
vecsmall_to_col 7838727
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78691849
vecsmalltrunc_append 100892295
vecsmalltrunc_init 188621163
vecsplice 384923
vectrunc_append 15851358
vectrunc_append_batch 9667
vectrunc_init 11767235
zc_to_ZC 7824540
zero_F2m 0
zero_F2m_copy 845040
zero_F2v 3647671
zero_F2x 1350
zero_Flm 2829250
zero_Flm_copy 238227
zero_Flv 59666350
zero_Flx 1426730
zero_zm 0
zero_zv 36729983
zero_zx 0
zerocol 122324989
zeromat 109096
zeromatcopy 14249369
zeropadic 855776
zeropadic_shallow 17024
zeropol 42354009
zeroser 138908
zerovec 28453517
zerovec_block 29654
zm_copy 0
zm_row 0
zm_to_zxV 0
zm_transpose 266
znstar_get_N 38655073
znstar_get_U 176107
znstar_get_Ui 46788
znstar_get_conreycyc 7979693
znstar_get_conreygen 3290176
znstar_get_cyc 262088
znstar_get_faN 7331711
znstar_get_gen 16150
znstar_get_no 14
znstar_get_pe 2869063
zv_copy 2183723
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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