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 30615-cf6389b5bf) Lines: 1420 1535 92.5 %
Date: 2026-01-16 09:21:08 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 8038313
F2m_copy 200436
F2m_flip 1554050
F2m_set 798
F2v_clear 12353474
F2v_coeff 661318884
F2v_copy 4487
F2v_ei 42
F2v_flip 1554050
F2v_set 101403097
F2v_to_F2x 37764
F2xX_shift 0
F2x_clear 12353469
F2x_coeff 667933427
F2x_copy 60422698
F2x_div 1569778
F2x_equal 4657215
F2x_equal1 2873783
F2x_flip 1554050
F2x_renormalize 115193769
F2x_set 124751260
F2xqX_div 33173
F3m_coeff 3255864
F3m_copy 0
F3m_set 0
Flm_copy 6433423
Flm_row 8741445
Flv_copy 2555052
Flx_constant 333911
Flx_copy 173124857
Flx_div 1998007
Flx_div_pre 21687443
Flx_equal1 8329500
Flx_lead 978957
Flx_mulu 1105298
FlxqX_div 0
FlxqX_div_pre 165416
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4693799
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581175
FpX_renormalize 144190875
Fp_add 181143379
Fp_addmul 11274829
Fp_center 77151065
Fp_center_i 17993687
Fp_div 15034691
Fp_divu 15129230
Fp_double 20944683
Fp_halve 247271
Fp_inv 23440611
Fp_invsafe 1100365
Fp_mul 200773566
Fp_muls 17780
Fp_mulu 69199082
Fp_neg 31481079
Fp_red 82189322
Fp_sqr 63848706
Fp_sub 203290073
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 571429
FqX_Fq_mul 427286
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 444667
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 367703
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 3106200
Fq_to_FpXQ 73652
GENbinbase 961912984
QV_isscalar 54415353
Q_abs 8062643
Q_abs_shallow 120249
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619848
RgC_gtofp 34032644
RgC_gtomp 574
RgM_dimensions 9741686
RgM_fpnorml2 22661
RgM_gtofp 8257897
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179175
RgV_gtofp 56
RgV_is_QV 140734
RgV_is_ZV 32158271
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210272
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406808
RgX_div 7000642
RgX_equal_var 26883019
RgX_fpnorml2 61495
RgX_gtofp 7144869
RgX_is_QX 399931
RgX_is_ZX 22423355
RgX_is_monomial 1331365
RgX_is_rational 68164
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479399
RgX_shift_inplace_init 479399
RgX_to_RgV 140
Rg_col_ei 1451022
Rg_to_Fq 756
ZC_hnfrem 10697381
ZM_ZV_mod 596406
ZM_hnfrem 363777
ZM_lll 7117687
ZV_ZV_mod 8131365
ZV_dvd 23485
ZV_isscalar 23675165
ZV_to_zv 3211408
ZXQ_mul 2161249
ZXQ_sqr 960437
ZX_equal1 12850
ZX_is_monic 7374296
ZX_renormalize 154946838
Z_ispower 98
Z_issquare 458709
abgrp_get_cyc 12230730
abgrp_get_gen 1765045
abgrp_get_no 354947
absfrac 46638669
absfrac_shallow 28237
addmuliu 535808
addmuliu_inplace 59645643
affc_fixlg 249621
affgr 898901
bid_get_MOD 2157242
bid_get_U 3680219
bid_get_arch 41188
bid_get_archp 2397088
bid_get_cyc 5739786
bid_get_fact 2498901
bid_get_fact2 2201565
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804639
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157969
bin_copy 496054902
bit_accuracy 3159418234
bit_accuracy_mul 3175484
bit_prec 143255626
bnf_get_clgp 5375045
bnf_get_cyc 3686170
bnf_get_fu 25859
bnf_get_fu_nocheck 289083
bnf_get_gen 1680332
bnf_get_logfu 2874763
bnf_get_nf 9865175
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367776
bnf_get_tuN 282993
bnf_get_tuU 303578
bnr_get_bid 2046095
bnr_get_bnf 3710955
bnr_get_clgp 2830227
bnr_get_cyc 2522551
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399080
bnr_get_no 277487
both_odd 123794609
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975461
cgiv 102676258
checkell_i 5593232
closure_arity 371468391
closure_codestr 321609348
closure_get_code 0
closure_get_data 321570640
closure_get_dbg 13628
closure_get_frame 14157850
closure_get_oper 321592924
closure_get_text 37065
closure_is_variadic 44789517
col_ei 5924457
coltrunc_init 740250
const_col 9729687
const_vec 34472741
const_vecsmall 19705762
constant_coeff 1441123
cxcompotor 18212872
cxnorm 91201190
cxtofp 9080615
cxtoreal 337208
cyc_get_expo 2757542
cyclic_perm 99911
dbllog2r 92818764
degpol 5494626057
div_content 58505
divsBIL 8088287752
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997084
ell_get_a2 7106188
ell_get_a3 8814052
ell_get_a4 8536729
ell_get_a6 10370967
ell_get_b2 7371026
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017455
ell_get_c6 13473879
ell_get_disc 16814217
ell_get_j 2126269
ell_get_type 12498694
ell_is_inf 52322989
ellff_get_a4a6 800035
ellff_get_field 2036876
ellinf 1869536
ellnf_get_bnf 119
ellnf_get_nf 2027238
equali1 1174330829
equalim1 139505098
err_get_compo 294
err_get_num 62536
gaddgs 123248656
gal_get_den 27867
gal_get_e 91
gal_get_gen 15435
gal_get_group 80387
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 255404074
gc_INT 4110791485
gc_INT_affii 8486131
gc_all 109637225
gc_leaf 1139415488
gc_slice 2204204
gc_upto 1953335380
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 761924
gdivsg 531592
gen_I 1269737
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1929074
get_F2x_mod 2499221
get_F2x_var 2534104
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 83050856
get_Flx_mod 25588900
get_Flx_var 68336635
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 6424303
get_FpX_mod 3394377
get_FpX_var 6957245
gisdouble 2996466
gmax_shallow 13510197
gmaxsg 0
gmin_shallow 877647
gminsg 0
gmulgs 22632183
gmulgu 282059385
gsubgs 1724805
gtodouble 60779551
gtofp 254337794
gtomp 22428
gtos 85855707
gtou 99530
guncloneNULL 47942201
guncloneNULL_deep 1444379
gval 6230
hash_str 2756813
hash_str_len 31544986
icopy_avma 8039577550
idealchineseinit 5427
idealred 138443
identity_ZV 8113
identity_perm 3241513
identity_zv 3265864
inf_get_sign 1452939
inv_content 0
is_bigint 563403169
is_const_t 4894327978
is_extscalar_t 6876
is_intreal_t 9584668
is_matvec_t 659649268
is_noncalc_t 85870788
is_pm1 2205770400
is_qfb_t 0
is_rational_t 5032537
is_real_t 62062463
is_recursive_t 9235120057
is_scalar_t 375657425
is_universal_constant 325874557
is_vec_t 43952563
isint1 17584892
isintm1 5710242
isintzero 2843575041
ismpzero 9584563
isonstack 8273998633
killblock 1923743
leading_coeff 170257744
leafcopy_avma 577057488
lg_increase 313019286
lgcols 351569925
lgpol 2687765591
lincombii 38236674
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 754833
matpascal 3983
matslice 16817474
mkcol 10639647
mkcol2 156850308
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33556
mkcols 40411
mkcomplex 91618192
mkerr 0
mkfrac 41641701
mkfraccopy 4999407
mkfracss 1209563
mkintmod 8092556
mkintmodu 1813
mkmat 4750885
mkmat2 33653920
mkmat22 50276448
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122278
mkmoo 108795
mkoo 1331896
mkpadic 2009
mkpolmod 3103724
mkqfb 27929638
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71057120
mkvec2 184499502
mkvec2copy 114529
mkvec2s 220246
mkvec3 120214828
mkvec3s 524441
mkvec4 10093856
mkvec4s 21
mkvec5 15185705
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131622535
mkvecsmall2 234773692
mkvecsmall3 104160935
mkvecsmall4 18641169
mkvecsmall5 1717523
modpr_get_T 13867139
modpr_get_p 1887627
modpr_get_pr 31236607
mul_content 2657053
mul_denom 10707714
mulsubii 3881931
nbits2extraprec 1457430174
nbits2ndec 228
nbits2nlong 12750271
nbits2prec 186136624
nbrows 157466812
nchar2nlong 127394295
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304859
nf_get_M 21745931
nf_get_Tr 22079
nf_get_degree 71368482
nf_get_diff 4445
nf_get_disc 463476
nf_get_index 3711367
nf_get_invzk 9767412
nf_get_pol 98105896
nf_get_r1 23466417
nf_get_r2 4154
nf_get_ramified_primes 64644
nf_get_roots 1628941
nf_get_roundG 1748173
nf_get_sign 519550
nf_get_varn 1503765
nf_get_zk 4382
nf_get_zkden 5459866
nf_get_zkprimpart 5414061
normalize_frac 17205007
odd 2089171499
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 509472340
pari_malloc 745341951
pari_realloc 1890
pari_realloc_ip 2254555
pari_stack_alloc 1019670595
pari_stack_base 1025291700
pari_stack_delete 5623621
pari_stack_init 6051015
pari_stack_new 925022211
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781910
perm_mul 80891638
perm_sqr 728
pol0_F2x 13241919
pol0_Flx 103459481
pol1_F2x 3958118
pol1_Flx 55043202
pol_0 82996609
pol_1 3755706
pol_x 3857113
pol_xn 2249296
pol_xnall 294
polx_F2x 1078105
polx_Flx 37476728
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130395
pr_get_e 16161782
pr_get_f 26442891
pr_get_gen 12070950
pr_get_p 92749830
pr_get_tau 49767979
pr_is_inert 17223866
pr_norm 1090488
prec2lg 4469363464
prec2nbits 103960218
prec2nbits_mul 581167
prec2ndec 9778
precdbl 475386
qfb_disc 18502550
qfb_disc3 4995751
qfb_is_qfi 62332240
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 7997324410
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 763882
row_i 987
rowcopy 204988
rowpermute 14705391
rowslice 79303941
rowslicepermute 185116
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27631492
sqrfrac 4148204
sqrti 6610173
sqrtnr 2810185
sqrtr 80372489
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60143497
truecoef 0
trunc_safe 0
ulogint 1722952
upr_norm 346135
uutoQ 1600198
vec_append 3465076
vec_ei 1713884
vec_lengthen 18960
vec_prepend 313999
vec_setconst 0
vec_shorten 11556
vec_to_vecsmall 4036608
veclast 9372716
vecmodii 0
vecmoduu 49784
vecpermute 20548897
vecreverse 697277
vecreverse_inplace 2605
vecslice 656082521
vecslicepermute 2690672
vecsmall_append 4099604
vecsmall_coincidence 0
vecsmall_concat 1464230
vecsmall_copy 4403892
vecsmall_ei 584724
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1164148
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75638
vecsmall_to_col 7838859
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78696311
vecsmalltrunc_append 100726742
vecsmalltrunc_init 188215191
vecsplice 384915
vectrunc_append 15851992
vectrunc_append_batch 9667
vectrunc_init 11768695
zc_to_ZC 7824678
zero_F2m 0
zero_F2m_copy 845028
zero_F2v 3647692
zero_F2x 1350
zero_Flm 2829446
zero_Flm_copy 238231
zero_Flv 59672589
zero_Flx 1426669
zero_zm 0
zero_zv 36733443
zero_zx 0
zerocol 122334413
zeromat 109069
zeromatcopy 14249858
zeropadic 855997
zeropadic_shallow 17024
zeropol 42353924
zeroser 138908
zerovec 28453589
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 2183818
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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