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 30601-812dd05845) Lines: 1421 1535 92.6 %
Date: 2026-01-06 09:22:34 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 8038662
F2m_copy 200477
F2m_flip 1554224
F2m_set 798
F2v_clear 12353960
F2v_coeff 661320915
F2v_copy 4487
F2v_ei 42
F2v_flip 1554224
F2v_set 101403560
F2v_to_F2x 37961
F2xX_shift 0
F2x_clear 12353961
F2x_coeff 667872049
F2x_copy 60414488
F2x_div 1570135
F2x_equal 4659130
F2x_equal1 2873938
F2x_flip 1554224
F2x_renormalize 115283026
F2x_set 124768889
F2xqX_div 33173
F3m_coeff 3255918
F3m_copy 0
F3m_set 0
Flm_copy 6433524
Flm_row 8741354
Flv_copy 2554971
Flx_constant 333986
Flx_copy 173184770
Flx_div 1998026
Flx_div_pre 21689026
Flx_equal1 8329881
Flx_lead 978220
Flx_mulu 1105454
FlxqX_div 0
FlxqX_div_pre 165414
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694038
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581235
FpX_renormalize 144203045
Fp_add 180815874
Fp_addmul 11174493
Fp_center 77172312
Fp_center_i 18008768
Fp_div 15034940
Fp_divu 15129411
Fp_double 20690689
Fp_halve 247271
Fp_inv 23440607
Fp_invsafe 1100363
Fp_mul 200624921
Fp_muls 17780
Fp_mulu 66073390
Fp_neg 31477880
Fp_red 82193494
Fp_sqr 63173628
Fp_sub 202140816
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 571435
FqX_Fq_mul 427298
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 444665
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 3106164
Fq_to_FpXQ 73652
GENbinbase 961903606
QV_isscalar 54415779
Q_abs 8062660
Q_abs_shallow 120223
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619843
RgC_gtofp 34032336
RgC_gtomp 574
RgM_dimensions 9741833
RgM_fpnorml2 22662
RgM_gtofp 8258134
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179472
RgV_gtofp 56
RgV_is_QV 140735
RgV_is_ZV 32158276
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210271
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406805
RgX_div 7000642
RgX_equal_var 26883004
RgX_fpnorml2 61493
RgX_gtofp 7144864
RgX_is_QX 399932
RgX_is_ZX 22423227
RgX_is_monomial 1331368
RgX_is_rational 68164
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479366
RgX_shift_inplace_init 479366
RgX_to_RgV 140
Rg_col_ei 1450996
Rg_to_Fq 756
ZC_hnfrem 10697356
ZM_ZV_mod 596456
ZM_hnfrem 363801
ZM_lll 7117845
ZV_ZV_mod 8131426
ZV_dvd 23485
ZV_isscalar 23675036
ZV_to_zv 3211408
ZXQ_mul 2161171
ZXQ_sqr 960352
ZX_equal1 12850
ZX_is_monic 7374300
ZX_renormalize 154983225
Z_ispower 98
Z_issquare 458711
abgrp_get_cyc 12230784
abgrp_get_gen 1765028
abgrp_get_no 354947
absfrac 46638708
absfrac_shallow 28237
addmuliu 535744
addmuliu_inplace 59639323
affc_fixlg 249621
affgr 898866
bid_get_MOD 2157263
bid_get_U 3680239
bid_get_arch 41188
bid_get_archp 2397128
bid_get_cyc 5739829
bid_get_fact 2498947
bid_get_fact2 2201583
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804681
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157993
bin_copy 496060944
bit_accuracy 3159730870
bit_accuracy_mul 3175472
bit_prec 143252613
bnf_get_clgp 5375007
bnf_get_cyc 3686151
bnf_get_fu 25859
bnf_get_fu_nocheck 289087
bnf_get_gen 1680313
bnf_get_logfu 2874777
bnf_get_nf 9865168
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367774
bnf_get_tuN 282998
bnf_get_tuU 303578
bnr_get_bid 2046090
bnr_get_bnf 3710951
bnr_get_clgp 2830238
bnr_get_cyc 2522556
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399082
bnr_get_no 277487
both_odd 124045725
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975459
cgiv 102680774
checkell_i 5593334
closure_arity 371599841
closure_codestr 321743184
closure_get_code 0
closure_get_data 321696023
closure_get_dbg 13628
closure_get_frame 14158046
closure_get_oper 321720114
closure_get_text 37065
closure_is_variadic 44789776
col_ei 5924478
coltrunc_init 740250
const_col 9729693
const_vec 34477667
const_vecsmall 19706140
constant_coeff 1441139
cxcompotor 18212030
cxnorm 91200643
cxtofp 9080149
cxtoreal 337206
cyc_get_expo 2757559
cyclic_perm 99911
dbllog2r 92817702
degpol 5481892390
div_content 58504
divsBIL 8091453026
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997064
ell_get_a2 7106181
ell_get_a3 8814031
ell_get_a4 8536722
ell_get_a6 10370960
ell_get_b2 7371011
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017998
ell_get_c6 13474472
ell_get_disc 16814790
ell_get_j 2126269
ell_get_type 12499211
ell_is_inf 52374259
ellff_get_a4a6 800012
ellff_get_field 2036839
ellinf 1869551
ellnf_get_bnf 119
ellnf_get_nf 2027216
equali1 1174332320
equalim1 139505068
err_get_compo 294
err_get_num 62537
gaddgs 123248606
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 255508798
gc_INT 4110886227
gc_INT_affii 8485839
gc_all 109636768
gc_leaf 1133889945
gc_slice 2204181
gc_upto 1953583341
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 761915
gdivsg 531589
gen_I 1269712
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928987
get_F2x_mod 2499140
get_F2x_var 2533922
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 81602072
get_Flx_mod 25593749
get_Flx_var 68349495
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 6424432
get_FpX_mod 3394362
get_FpX_var 6957868
gisdouble 2996417
gmax_shallow 13510199
gmaxsg 0
gmin_shallow 877675
gminsg 0
gmulgs 22605115
gmulgu 282059385
gsubgs 1724815
gtodouble 60783134
gtofp 254313868
gtomp 22428
gtos 85855675
gtou 99529
guncloneNULL 47928501
guncloneNULL_deep 1431772
gval 6230
hash_str 2756815
hash_str_len 31544990
icopy_avma 8039646625
idealchineseinit 5427
idealred 138438
identity_ZV 8113
identity_perm 3241477
identity_zv 3265825
inf_get_sign 1452962
inv_content 0
is_bigint 563398479
is_const_t 4897911111
is_extscalar_t 6876
is_intreal_t 9584695
is_matvec_t 659716263
is_noncalc_t 85871120
is_pm1 2204404768
is_qfb_t 0
is_rational_t 5032567
is_real_t 62062465
is_recursive_t 9235143762
is_scalar_t 375658485
is_universal_constant 325911228
is_vec_t 43961485
isint1 17584871
isintm1 5710226
isintzero 2844033611
ismpzero 9584593
isonstack 8269403805
killblock 1919285
leading_coeff 170262163
leafcopy_avma 577334482
lg_increase 318400835
lgcols 351594182
lgpol 2682585399
lincombii 38228075
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 754832
matpascal 3983
matslice 16818829
mkcol 10639625
mkcol2 156873082
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33555
mkcols 40411
mkcomplex 91617506
mkerr 0
mkfrac 41640603
mkfraccopy 4999589
mkfracss 1209563
mkintmod 8092486
mkintmodu 1813
mkmat 4750918
mkmat2 33654161
mkmat22 50282058
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122268
mkmoo 108798
mkoo 1331910
mkpadic 2009
mkpolmod 3103724
mkqfb 27930111
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71082067
mkvec2 185401761
mkvec2copy 114529
mkvec2s 220249
mkvec3 115843787
mkvec3s 524441
mkvec4 10093803
mkvec4s 21
mkvec5 15185411
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131623706
mkvecsmall2 234843886
mkvecsmall3 104177687
mkvecsmall4 18657549
mkvecsmall5 1717496
modpr_get_T 13867035
modpr_get_p 1887627
modpr_get_pr 31236453
mul_content 2657164
mul_denom 10707589
mulsubii 3881371
nbits2extraprec 1458022812
nbits2ndec 228
nbits2nlong 12747773
nbits2prec 186134867
nbrows 157466378
nchar2nlong 127392489
ndec2nbits 8270
ndec2nlong 41549
ndec2prec 33279
nfV_to_scalar_or_alg 26300
nf_get_G 304866
nf_get_M 21745805
nf_get_Tr 22081
nf_get_degree 71369055
nf_get_diff 4445
nf_get_disc 463477
nf_get_index 3711389
nf_get_invzk 9767385
nf_get_pol 98106795
nf_get_r1 23466311
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628941
nf_get_roundG 1748173
nf_get_sign 519551
nf_get_varn 1503555
nf_get_zk 4382
nf_get_zkden 5459860
nf_get_zkprimpart 5414035
normalize_frac 17205510
odd 2089570768
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 509447895
pari_malloc 745353594
pari_realloc 1890
pari_realloc_ip 2255369
pari_stack_alloc 1019849841
pari_stack_base 1025383261
pari_stack_delete 5569164
pari_stack_init 6051583
pari_stack_new 925167170
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781896
perm_mul 80893567
perm_sqr 728
pol0_F2x 13236384
pol0_Flx 103462343
pol1_F2x 3956910
pol1_Flx 55051555
pol_0 82996648
pol_1 3755663
pol_x 3856961
pol_xn 2249280
pol_xnall 294
polx_F2x 1078361
polx_Flx 37485813
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130353
pr_get_e 16161622
pr_get_f 26442735
pr_get_gen 12071051
pr_get_p 92749759
pr_get_tau 49767992
pr_is_inert 17223780
pr_norm 1090497
prec2lg 4467259386
prec2nbits 103964536
prec2nbits_mul 581166
prec2ndec 9778
precdbl 475381
qfb_disc 18502554
qfb_disc3 4996004
qfb_is_qfi 62316206
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8000569180
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 763889
row_i 987
rowcopy 204988
rowpermute 14705361
rowslice 79310032
rowslicepermute 185016
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27631593
sqrfrac 4148226
sqrti 6610157
sqrtnr 2810211
sqrtr 80372432
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60133606
truecoef 0
trunc_safe 0
ulogint 1717379
upr_norm 346136
uutoQ 1600198
vec_append 3465059
vec_ei 1713875
vec_lengthen 18960
vec_prepend 314002
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036634
veclast 9372709
vecmodii 0
vecmoduu 49784
vecpermute 20547525
vecreverse 697277
vecreverse_inplace 2605
vecslice 656019640
vecslicepermute 2690200
vecsmall_append 4099600
vecsmall_coincidence 0
vecsmall_concat 1464229
vecsmall_copy 4403898
vecsmall_ei 584724
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1164007
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75641
vecsmall_to_col 7838606
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78698131
vecsmalltrunc_append 100782340
vecsmalltrunc_init 190052088
vecsplice 384906
vectrunc_append 15853778
vectrunc_append_batch 9667
vectrunc_init 11767580
zc_to_ZC 7824423
zero_F2m 0
zero_F2m_copy 845049
zero_F2v 3647735
zero_F2x 1350
zero_Flm 2829399
zero_Flm_copy 238233
zero_Flv 59671043
zero_Flx 1426481
zero_zm 0
zero_zv 36733283
zero_zx 0
zerocol 122333035
zeromat 109052
zeromatcopy 14250203
zeropadic 855422
zeropadic_shallow 17024
zeropol 42354004
zeroser 138908
zerovec 28453529
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 2183748
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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