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 30657-d14c2a9e4e) Lines: 1420 1535 92.5 %
Date: 2026-01-29 09:23:20 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 8038083
F2m_copy 200441
F2m_flip 1553938
F2m_set 798
F2v_clear 12353438
F2v_coeff 661317455
F2v_copy 4487
F2v_ei 42
F2v_flip 1553938
F2v_set 101403011
F2v_to_F2x 37766
F2xX_shift 0
F2x_clear 12353445
F2x_coeff 667890216
F2x_copy 60476566
F2x_div 1569532
F2x_equal 4662650
F2x_equal1 2873824
F2x_flip 1553938
F2x_renormalize 115286066
F2x_set 124752785
F2xqX_div 33173
F3m_coeff 3255863
F3m_copy 0
F3m_set 0
Flm_copy 6433505
Flm_row 8741354
Flv_copy 2554993
Flx_constant 333962
Flx_copy 173221540
Flx_div 1997991
Flx_div_pre 21691229
Flx_equal1 8329782
Flx_lead 978377
Flx_mulu 1105371
FlxqX_div 0
FlxqX_div_pre 165415
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 5581195
FpX_renormalize 144214119
Fp_add 181043751
Fp_addmul 11221385
Fp_center 77196966
Fp_center_i 18000469
Fp_div 15034424
Fp_divu 15128907
Fp_double 20814801
Fp_halve 247271
Fp_inv 23440257
Fp_invsafe 1100362
Fp_mul 200709798
Fp_muls 17780
Fp_mulu 68124456
Fp_neg 31479219
Fp_red 82191294
Fp_sqr 63642506
Fp_sub 202494100
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 571664
FqX_Fq_mul 427301
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38568
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444772
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 367710
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 3106396
Fq_to_FpXQ 73652
GENbinbase 961915181
QV_isscalar 54416112
Q_abs 8062636
Q_abs_shallow 120230
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619848
RgC_gtofp 34031427
RgC_gtomp 574
RgM_dimensions 9741732
RgM_fpnorml2 22662
RgM_gtofp 8258023
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179554
RgV_gtofp 56
RgV_is_QV 140735
RgV_is_ZV 32158273
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210268
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406638
RgX_div 7000642
RgX_equal_var 26883011
RgX_fpnorml2 61600
RgX_gtofp 7145298
RgX_is_QX 399934
RgX_is_ZX 22423204
RgX_is_monomial 1331379
RgX_is_rational 68165
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479399
RgX_shift_inplace_init 479399
RgX_to_RgV 140
Rg_col_ei 1450956
Rg_to_Fq 756
ZC_hnfrem 10697511
ZM_ZV_mod 596506
ZM_hnfrem 363762
ZM_lll 7117797
ZV_ZV_mod 8131508
ZV_dvd 23485
ZV_isscalar 23674858
ZV_to_zv 3211406
ZXQ_mul 2161179
ZXQ_sqr 960431
ZX_equal1 12850
ZX_is_monic 7374280
ZX_renormalize 155005979
Z_ispower 98
Z_issquare 457644
abgrp_get_cyc 12230769
abgrp_get_gen 1765019
abgrp_get_no 354948
absfrac 46638724
absfrac_shallow 28237
addmuliu 535763
addmuliu_inplace 59638905
affc_fixlg 249621
affgr 898901
bid_get_MOD 2157256
bid_get_U 3680233
bid_get_arch 41187
bid_get_archp 2397116
bid_get_cyc 5739821
bid_get_fact 2498934
bid_get_fact2 2201577
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804674
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157984
bin_copy 496062237
bit_accuracy 3160076618
bit_accuracy_mul 3175484
bit_prec 143253444
bnf_get_clgp 5374993
bnf_get_cyc 3686144
bnf_get_fu 25859
bnf_get_fu_nocheck 289090
bnf_get_gen 1680305
bnf_get_logfu 2874756
bnf_get_nf 9865161
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367778
bnf_get_tuN 282996
bnf_get_tuU 303583
bnr_get_bid 2046092
bnr_get_bnf 3710944
bnr_get_clgp 2830227
bnr_get_cyc 2522563
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399080
bnr_get_no 277488
both_odd 123974169
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975457
cgiv 102679943
checkell_i 5593285
closure_arity 372528632
closure_codestr 322137485
closure_get_code 0
closure_get_data 322077025
closure_get_dbg 13635
closure_get_frame 14715295
closure_get_oper 322107034
closure_get_text 37079
closure_is_variadic 45903628
col_ei 5924551
coltrunc_init 740250
const_col 9729679
const_vec 34564949
const_vecsmall 19706454
constant_coeff 1441432
cxcompotor 18211551
cxnorm 91200749
cxtofp 9079866
cxtoreal 337204
cyc_get_expo 2757542
cyclic_perm 99911
dbllog2r 92816420
degpol 5494854524
div_content 58507
divsBIL 8092631680
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997079
ell_get_a2 7106183
ell_get_a3 8814047
ell_get_a4 8536724
ell_get_a6 10370962
ell_get_b2 7371025
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11018081
ell_get_c6 13474504
ell_get_disc 16815239
ell_get_j 2126269
ell_get_type 12498999
ell_is_inf 52344026
ellff_get_a4a6 800025
ellff_get_field 2036856
ellinf 1869909
ellnf_get_bnf 119
ellnf_get_nf 2027237
equali1 1174298039
equalim1 139505544
err_get_compo 294
err_get_num 62551
gaddgs 123248635
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 255524867
gc_INT 4111110620
gc_INT_affii 8492431
gc_all 109636379
gc_leaf 1137980625
gc_slice 2204347
gc_upto 1954459275
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 761923
gdivsg 531590
gen_I 1269709
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928996
get_F2x_mod 2499217
get_F2x_var 2534025
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82590629
get_Flx_mod 25595328
get_Flx_var 68356972
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 6424464
get_FpX_mod 3394361
get_FpX_var 6958071
gisdouble 2996437
gmax_shallow 13510199
gmaxsg 0
gmin_shallow 877786
gminsg 0
gmulgs 22613552
gmulgu 282059384
gsubgs 1724803
gtodouble 60780548
gtofp 254314645
gtomp 22428
gtos 85855696
gtou 100707
guncloneNULL 48006227
guncloneNULL_deep 1492079
gval 6230
hash_str 2760615
hash_str_len 31629599
icopy_avma 8039723293
idealchineseinit 5427
idealred 138442
identity_ZV 8113
identity_perm 3241442
identity_zv 3265792
inf_get_sign 1452952
inv_content 0
is_bigint 563399727
is_const_t 4898380429
is_extscalar_t 6876
is_intreal_t 9584684
is_matvec_t 659518974
is_noncalc_t 85871631
is_pm1 2205478675
is_qfb_t 0
is_rational_t 5032645
is_real_t 62062467
is_recursive_t 9238338957
is_scalar_t 375658711
is_universal_constant 326454402
is_vec_t 43960251
isint1 17584868
isintm1 5710230
isintzero 2844234867
ismpzero 9584543
isonstack 8275733196
killblock 1949061
leading_coeff 170224005
leafcopy_avma 577366920
lg_increase 315430361
lgcols 351599140
lgpol 2689232748
lincombii 38234613
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 16818913
mkcol 10639776
mkcol2 156887839
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33562
mkcols 40411
mkcomplex 91616714
mkerr 0
mkfrac 41641054
mkfraccopy 4999633
mkfracss 1209563
mkintmod 8092518
mkintmodu 1813
mkmat 4750894
mkmat2 33654103
mkmat22 50283038
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122272
mkmoo 108793
mkoo 1331901
mkpadic 2009
mkpolmod 3103725
mkqfb 27930220
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71183146
mkvec2 184873844
mkvec2copy 114529
mkvec2s 220248
mkvec3 118953578
mkvec3s 524441
mkvec4 10093801
mkvec4s 21
mkvec5 15185705
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131639623
mkvecsmall2 234934281
mkvecsmall3 104173176
mkvecsmall4 18657170
mkvecsmall5 1717497
modpr_get_T 13867112
modpr_get_p 1887627
modpr_get_pr 31236584
mul_content 2657218
mul_denom 10707735
mulsubii 3881894
nbits2extraprec 1458229595
nbits2ndec 228
nbits2nlong 12753980
nbits2prec 186135616
nbrows 157465399
nchar2nlong 127558147
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304900
nf_get_M 21745638
nf_get_Tr 22078
nf_get_degree 71369682
nf_get_diff 4445
nf_get_disc 463484
nf_get_index 3711407
nf_get_invzk 9767373
nf_get_pol 98107788
nf_get_r1 23466097
nf_get_r2 4154
nf_get_ramified_primes 64643
nf_get_roots 1628942
nf_get_roundG 1748213
nf_get_sign 519551
nf_get_varn 1503758
nf_get_zk 4382
nf_get_zkden 5459865
nf_get_zkprimpart 5413971
normalize_frac 17205626
odd 2089279824
pari_calloc 47720
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
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 509542865
pari_malloc 745493036
pari_realloc 1890
pari_realloc_ip 2348399
pari_stack_alloc 1022153165
pari_stack_base 1027988373
pari_stack_delete 5835033
pari_stack_init 6351799
pari_stack_new 926916868
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781878
perm_mul 80891078
perm_sqr 728
pol0_F2x 13244365
pol0_Flx 103479239
pol1_F2x 3957523
pol1_Flx 55058954
pol_0 82996689
pol_1 3755699
pol_x 3857201
pol_xn 2249280
pol_xnall 294
polx_F2x 1078028
polx_Flx 37485295
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130469
pr_get_e 16161626
pr_get_f 26442609
pr_get_gen 12071152
pr_get_p 92749353
pr_get_tau 49767605
pr_is_inert 17223719
pr_norm 1090478
prec2lg 4468622399
prec2nbits 103964805
prec2nbits_mul 581164
prec2ndec 9778
precdbl 475383
qfb_disc 18502539
qfb_disc3 4996065
qfb_is_qfi 62316284
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8001545308
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 763892
row_i 987
rowcopy 204988
rowpermute 14705302
rowslice 79306195
rowslicepermute 185061
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27632070
sqrfrac 4148249
sqrti 6610099
sqrtnr 2810236
sqrtr 80373986
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60133320
truecoef 0
trunc_safe 0
ulogint 1714798
upr_norm 346133
uutoQ 1600198
vec_append 3464611
vec_ei 1713847
vec_lengthen 18960
vec_prepend 314010
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036623
veclast 9372714
vecmodii 0
vecmoduu 49784
vecpermute 20548390
vecreverse 697276
vecreverse_inplace 2605
vecslice 655810770
vecslicepermute 2690459
vecsmall_append 4099140
vecsmall_coincidence 0
vecsmall_concat 1464203
vecsmall_copy 4403863
vecsmall_ei 584711
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1164187
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75641
vecsmall_to_col 7838718
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78695583
vecsmalltrunc_append 100895037
vecsmalltrunc_init 189174883
vecsplice 384921
vectrunc_append 15852480
vectrunc_append_batch 9667
vectrunc_init 11766644
zc_to_ZC 7824535
zero_F2m 0
zero_F2m_copy 845037
zero_F2v 3647707
zero_F2x 1350
zero_Flm 2829402
zero_Flm_copy 238231
zero_Flv 59670314
zero_Flx 1426904
zero_zm 0
zero_zv 36732126
zero_zx 0
zerocol 122332271
zeromat 109075
zeromatcopy 14250142
zeropadic 855880
zeropadic_shallow 17024
zeropol 42353964
zeroser 138908
zerovec 28453551
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 2183758
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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