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 30613-2b070936c6) Lines: 1421 1535 92.6 %
Date: 2026-01-15 09:21:54 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 8035706
F2m_copy 200425
F2m_flip 1553382
F2m_set 798
F2v_clear 12352264
F2v_coeff 661303246
F2v_copy 4487
F2v_ei 42
F2v_flip 1553382
F2v_set 101400912
F2v_to_F2x 37553
F2xX_shift 0
F2x_clear 12351790
F2x_coeff 667835386
F2x_copy 59675491
F2x_div 1557379
F2x_equal 4607108
F2x_equal1 2873941
F2x_flip 1553383
F2x_renormalize 114321595
F2x_set 124520864
F2xqX_div 33173
F3m_coeff 3255868
F3m_copy 0
F3m_set 0
Flm_copy 6433432
Flm_row 8741300
Flv_copy 2554959
Flx_constant 334016
Flx_copy 173185471
Flx_div 1997929
Flx_div_pre 21683923
Flx_equal1 8329761
Flx_lead 977668
Flx_mulu 1105457
FlxqX_div 0
FlxqX_div_pre 165414
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694185
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581115
FpX_renormalize 144209225
Fp_add 180997484
Fp_addmul 11233097
Fp_center 77161047
Fp_center_i 18019230
Fp_div 15035233
Fp_divu 15129695
Fp_double 20814691
Fp_halve 247271
Fp_inv 23440637
Fp_invsafe 1100355
Fp_mul 200734606
Fp_muls 17780
Fp_mulu 67684621
Fp_neg 31477236
Fp_red 82192527
Fp_sqr 63450467
Fp_sub 202455887
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 571423
FqX_Fq_mul 427289
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38563
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444662
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 367704
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 3106298
Fq_to_FpXQ 73652
GENbinbase 961890457
QV_isscalar 54416446
Q_abs 8062662
Q_abs_shallow 120225
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619847
RgC_gtofp 34033550
RgC_gtomp 574
RgM_dimensions 9741662
RgM_fpnorml2 22662
RgM_gtofp 8258476
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179489
RgV_gtofp 56
RgV_is_QV 140731
RgV_is_ZV 32158277
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210270
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406643
RgX_div 7000642
RgX_equal_var 26883019
RgX_fpnorml2 61494
RgX_gtofp 7144796
RgX_is_QX 399935
RgX_is_ZX 22423140
RgX_is_monomial 1331344
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 1450979
Rg_to_Fq 756
ZC_hnfrem 10697462
ZM_ZV_mod 596446
ZM_hnfrem 363792
ZM_lll 7118049
ZV_ZV_mod 8131455
ZV_dvd 23485
ZV_isscalar 23674860
ZV_to_zv 3211408
ZXQ_mul 2161167
ZXQ_sqr 960345
ZX_equal1 12850
ZX_is_monic 7374306
ZX_renormalize 154973283
Z_ispower 98
Z_issquare 458712
abgrp_get_cyc 12230763
abgrp_get_gen 1765022
abgrp_get_no 354948
absfrac 46638842
absfrac_shallow 28237
addmuliu 535727
addmuliu_inplace 59720321
affc_fixlg 249623
affgr 898901
bid_get_MOD 2157236
bid_get_U 3680217
bid_get_arch 41187
bid_get_archp 2397076
bid_get_cyc 5739789
bid_get_fact 2498912
bid_get_fact2 2201533
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804636
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157961
bin_copy 496054973
bit_accuracy 3155496466
bit_accuracy_mul 3175484
bit_prec 143248906
bnf_get_clgp 5374996
bnf_get_cyc 3686149
bnf_get_fu 25859
bnf_get_fu_nocheck 289083
bnf_get_gen 1680309
bnf_get_logfu 2874747
bnf_get_nf 9865135
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367775
bnf_get_tuN 282993
bnf_get_tuU 303575
bnr_get_bid 2046092
bnr_get_bnf 3710943
bnr_get_clgp 2830251
bnr_get_cyc 2522572
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77118
bnr_get_nf 1399073
bnr_get_no 277489
both_odd 123927975
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975457
cgiv 102667333
checkell_i 5593196
closure_arity 371575387
closure_codestr 321722434
closure_get_code 0
closure_get_data 321680489
closure_get_dbg 13628
closure_get_frame 14158222
closure_get_oper 321702221
closure_get_text 37065
closure_is_variadic 44790183
col_ei 5924502
coltrunc_init 740250
const_col 9729684
const_vec 34478809
const_vecsmall 19706398
constant_coeff 1441122
cxcompotor 18210430
cxnorm 91198184
cxtofp 9079355
cxtoreal 337204
cyc_get_expo 2757549
cyclic_perm 99911
dbllog2r 92814445
degpol 5491275631
div_content 58505
divsBIL 8087931372
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997076
ell_get_a2 7106179
ell_get_a3 8814043
ell_get_a4 8536720
ell_get_a6 10370958
ell_get_b2 7371027
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017669
ell_get_c6 13474132
ell_get_disc 16814619
ell_get_j 2126269
ell_get_type 12498683
ell_is_inf 52374025
ellff_get_a4a6 800021
ellff_get_field 2036844
ellinf 1869973
ellnf_get_bnf 119
ellnf_get_nf 2027225
equali1 1174337707
equalim1 139505366
err_get_compo 294
err_get_num 62536
gaddgs 123248621
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 255464341
gc_INT 4110521530
gc_INT_affii 8488006
gc_all 109637757
gc_leaf 1136779916
gc_slice 2204055
gc_upto 1953518688
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 1269713
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928900
get_F2x_mod 2499251
get_F2x_var 2533873
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82365147
get_Flx_mod 25594899
get_Flx_var 68349818
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 6424488
get_FpX_mod 3394351
get_FpX_var 6958034
gisdouble 2996152
gmax_shallow 13510200
gmaxsg 0
gmin_shallow 877652
gminsg 0
gmulgs 22580497
gmulgu 282059385
gsubgs 1724810
gtodouble 60777599
gtofp 254349733
gtomp 22428
gtos 85855685
gtou 99533
guncloneNULL 47921551
guncloneNULL_deep 1425681
gval 6230
hash_str 2756814
hash_str_len 31544994
icopy_avma 8039608523
idealchineseinit 5427
idealred 138444
identity_ZV 8113
identity_perm 3241405
identity_zv 3265755
inf_get_sign 1452962
inv_content 0
is_bigint 563373224
is_const_t 4897410432
is_extscalar_t 6876
is_intreal_t 9584653
is_matvec_t 659636334
is_noncalc_t 85872287
is_pm1 2205277526
is_qfb_t 0
is_rational_t 5032523
is_real_t 62062464
is_recursive_t 9234108471
is_scalar_t 375657544
is_universal_constant 325833349
is_vec_t 43933303
isint1 17584803
isintm1 5710168
isintzero 2843466849
ismpzero 9584547
isonstack 8271673002
killblock 1915120
leading_coeff 170260925
leafcopy_avma 577351086
lg_increase 317453043
lgcols 351597225
lgpol 2683676342
lincombii 38225631
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 754831
matpascal 3983
matslice 16819421
mkcol 10639539
mkcol2 156885290
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33554
mkcols 40411
mkcomplex 91607716
mkerr 0
mkfrac 41638000
mkfraccopy 4999659
mkfracss 1209563
mkintmod 8092512
mkintmodu 1813
mkmat 4750888
mkmat2 33654650
mkmat22 50282664
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122273
mkmoo 108798
mkoo 1331911
mkpadic 2009
mkpolmod 3103727
mkqfb 27930507
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71107271
mkvec2 185290592
mkvec2copy 114531
mkvec2s 220246
mkvec3 118132237
mkvec3s 524441
mkvec4 10093795
mkvec4s 21
mkvec5 15185641
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131585579
mkvecsmall2 234823625
mkvecsmall3 104166804
mkvecsmall4 18649782
mkvecsmall5 1717498
modpr_get_T 13867099
modpr_get_p 1887627
modpr_get_pr 31236523
mul_content 2657228
mul_denom 10707722
mulsubii 3880749
nbits2extraprec 1457783152
nbits2ndec 228
nbits2nlong 12744913
nbits2prec 186120522
nbrows 157464910
nchar2nlong 127392967
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304893
nf_get_M 21745637
nf_get_Tr 22078
nf_get_degree 71370134
nf_get_diff 4445
nf_get_disc 463483
nf_get_index 3711391
nf_get_invzk 9767297
nf_get_pol 98108053
nf_get_r1 23466091
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628947
nf_get_roundG 1748206
nf_get_sign 519551
nf_get_varn 1503755
nf_get_zk 4382
nf_get_zkden 5459783
nf_get_zkprimpart 5413970
normalize_frac 17205429
odd 2089686944
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 509440911
pari_malloc 745357575
pari_realloc 1890
pari_realloc_ip 2255216
pari_stack_alloc 1019761182
pari_stack_base 1025241057
pari_stack_delete 5545994
pari_stack_init 6051278
pari_stack_new 925073040
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781899
perm_mul 80892209
perm_sqr 728
pol0_F2x 13193605
pol0_Flx 103424543
pol1_F2x 3956847
pol1_Flx 55053207
pol_0 82996637
pol_1 3755704
pol_x 3857096
pol_xn 2249264
pol_xnall 294
polx_F2x 1073308
polx_Flx 37482207
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130399
pr_get_e 16161930
pr_get_f 26442667
pr_get_gen 12071050
pr_get_p 92749766
pr_get_tau 49767830
pr_is_inert 17223874
pr_norm 1090485
prec2lg 4468302779
prec2nbits 103961135
prec2nbits_mul 581166
prec2ndec 9778
precdbl 475373
qfb_disc 18502516
qfb_disc3 4996186
qfb_is_qfi 62316355
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 7997288728
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 763881
row_i 987
rowcopy 204988
rowpermute 14705355
rowslice 79311151
rowslicepermute 185036
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27631776
sqrfrac 4148214
sqrti 6610148
sqrtnr 2810195
sqrtr 80371309
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60211500
truecoef 0
trunc_safe 0
ulogint 1725447
upr_norm 346134
uutoQ 1600198
vec_append 3465041
vec_ei 1713803
vec_lengthen 18960
vec_prepend 314007
vec_setconst 0
vec_shorten 11556
vec_to_vecsmall 4036630
veclast 9372693
vecmodii 0
vecmoduu 49784
vecpermute 20547289
vecreverse 697277
vecreverse_inplace 2605
vecslice 655934733
vecslicepermute 2690244
vecsmall_append 4099537
vecsmall_coincidence 0
vecsmall_concat 1464174
vecsmall_copy 4403853
vecsmall_ei 584730
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1163956
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75639
vecsmall_to_col 7838665
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78696820
vecsmalltrunc_append 100811088
vecsmalltrunc_init 189747811
vecsplice 384915
vectrunc_append 15851414
vectrunc_append_batch 9667
vectrunc_init 11766907
zc_to_ZC 7824483
zero_F2m 0
zero_F2m_copy 845010
zero_F2v 3647469
zero_F2x 1350
zero_Flm 2829299
zero_Flm_copy 238225
zero_Flv 59655209
zero_Flx 1426826
zero_zm 0
zero_zv 36718421
zero_zx 0
zerocol 122335800
zeromat 109096
zeromatcopy 14250704
zeropadic 855665
zeropadic_shallow 17024
zeropol 42354008
zeroser 138908
zerovec 28453450
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 2183704
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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