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 30605-980f9eb85c) Lines: 1421 1535 92.6 %
Date: 2026-01-12 09:21:57 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 8038935
F2m_copy 200477
F2m_flip 1554354
F2m_set 798
F2v_clear 12354078
F2v_coeff 661322854
F2v_copy 4487
F2v_ei 42
F2v_flip 1554354
F2v_set 101403800
F2v_to_F2x 37842
F2xX_shift 0
F2x_clear 12354081
F2x_coeff 667839879
F2x_copy 60479011
F2x_div 1571507
F2x_equal 4666005
F2x_equal1 2874052
F2x_flip 1554354
F2x_renormalize 115285126
F2x_set 124744489
F2xqX_div 33173
F3m_coeff 3255868
F3m_copy 0
F3m_set 0
Flm_copy 6433493
Flm_row 8741211
Flv_copy 2555009
Flx_constant 334028
Flx_copy 173177210
Flx_div 1997974
Flx_div_pre 21688419
Flx_equal1 8329952
Flx_lead 978189
Flx_mulu 1105377
FlxqX_div 0
FlxqX_div_pre 165415
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4693993
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581176
FpX_renormalize 144210386
Fp_add 181048773
Fp_addmul 11249666
Fp_center 77166989
Fp_center_i 18016701
Fp_div 15034248
Fp_divu 15128539
Fp_double 20846712
Fp_halve 247271
Fp_inv 23440744
Fp_invsafe 1100358
Fp_mul 200762021
Fp_muls 17780
Fp_mulu 66827790
Fp_neg 31476313
Fp_red 82193321
Fp_sqr 63555511
Fp_sub 202508345
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 571436
FqX_Fq_mul 427292
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38567
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444658
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 3106218
Fq_to_FpXQ 73652
GENbinbase 961886973
QV_isscalar 54415577
Q_abs 8062648
Q_abs_shallow 120237
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619844
RgC_gtofp 34029787
RgC_gtomp 574
RgM_dimensions 9741716
RgM_fpnorml2 22662
RgM_gtofp 8257738
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179047
RgV_gtofp 56
RgV_is_QV 140732
RgV_is_ZV 32158278
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210272
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406537
RgX_div 7000642
RgX_equal_var 26883021
RgX_fpnorml2 61495
RgX_gtofp 7144722
RgX_is_QX 399932
RgX_is_ZX 22423250
RgX_is_monomial 1331355
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 1450958
Rg_to_Fq 756
ZC_hnfrem 10697371
ZM_ZV_mod 596473
ZM_hnfrem 363779
ZM_lll 7117554
ZV_ZV_mod 8131455
ZV_dvd 23485
ZV_isscalar 23674740
ZV_to_zv 3211408
ZXQ_mul 2161167
ZXQ_sqr 960339
ZX_equal1 12850
ZX_is_monic 7374328
ZX_renormalize 154959198
Z_ispower 98
Z_issquare 458713
abgrp_get_cyc 12230759
abgrp_get_gen 1765017
abgrp_get_no 354946
absfrac 46638774
absfrac_shallow 28237
addmuliu 535708
addmuliu_inplace 59629413
affc_fixlg 249622
affgr 898866
bid_get_MOD 2157233
bid_get_U 3680212
bid_get_arch 41188
bid_get_archp 2397104
bid_get_cyc 5739806
bid_get_fact 2498918
bid_get_fact2 2201558
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804653
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157957
bin_copy 496051563
bit_accuracy 3159520597
bit_accuracy_mul 3175472
bit_prec 143241895
bnf_get_clgp 5374997
bnf_get_cyc 3686147
bnf_get_fu 25858
bnf_get_fu_nocheck 289087
bnf_get_gen 1680307
bnf_get_logfu 2874766
bnf_get_nf 9865148
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367773
bnf_get_tuN 283000
bnf_get_tuU 303575
bnr_get_bid 2046075
bnr_get_bnf 3710934
bnr_get_clgp 2830220
bnr_get_cyc 2522551
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399069
bnr_get_no 277487
both_odd 123921984
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975461
cgiv 102679292
checkell_i 5593230
closure_arity 371450308
closure_codestr 321596771
closure_get_code 0
closure_get_data 321557056
closure_get_dbg 13628
closure_get_frame 14157977
closure_get_oper 321581302
closure_get_text 37065
closure_is_variadic 44789552
col_ei 5924552
coltrunc_init 740250
const_col 9729681
const_vec 34477250
const_vecsmall 19705787
constant_coeff 1441142
cxcompotor 18209211
cxnorm 91196239
cxtofp 9078732
cxtoreal 337208
cyc_get_expo 2757534
cyclic_perm 99911
dbllog2r 92812398
degpol 5485340878
div_content 58503
divsBIL 8091057551
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 7106177
ell_get_a3 8814043
ell_get_a4 8536718
ell_get_a6 10370956
ell_get_b2 7371028
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017828
ell_get_c6 13474317
ell_get_disc 16814616
ell_get_j 2126269
ell_get_type 12498758
ell_is_inf 52392125
ellff_get_a4a6 800025
ellff_get_field 2036844
ellinf 1869972
ellnf_get_bnf 119
ellnf_get_nf 2027220
equali1 1174343215
equalim1 139505015
err_get_compo 294
err_get_num 62536
gaddgs 123248639
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 255448822
gc_INT 4110638214
gc_INT_affii 8488278
gc_all 109638142
gc_leaf 1135173283
gc_slice 2204057
gc_upto 1953494452
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 761928
gdivsg 531592
gen_I 1269688
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928948
get_F2x_mod 2499173
get_F2x_var 2533849
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 81920117
get_Flx_mod 25594221
get_Flx_var 68348057
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 6424442
get_FpX_mod 3394347
get_FpX_var 6958035
gisdouble 2995899
gmax_shallow 13510198
gmaxsg 0
gmin_shallow 877678
gminsg 0
gmulgs 22592562
gmulgu 282059385
gsubgs 1724808
gtodouble 60776169
gtofp 254289611
gtomp 22428
gtos 85855630
gtou 99527
guncloneNULL 47922984
guncloneNULL_deep 1427050
gval 6230
hash_str 2756814
hash_str_len 31544952
icopy_avma 8039708614
idealchineseinit 5427
idealred 138434
identity_ZV 8113
identity_perm 3241366
identity_zv 3265715
inf_get_sign 1452966
inv_content 0
is_bigint 563398117
is_const_t 4897482424
is_extscalar_t 6876
is_intreal_t 9584556
is_matvec_t 659541009
is_noncalc_t 85871060
is_pm1 2204609877
is_qfb_t 0
is_rational_t 5032435
is_real_t 62062463
is_recursive_t 9234009477
is_scalar_t 375656782
is_universal_constant 326024714
is_vec_t 43946442
isint1 17584620
isintm1 5710000
isintzero 2843855700
ismpzero 9584450
isonstack 8270016779
killblock 1916034
leading_coeff 170260676
leafcopy_avma 577339292
lg_increase 318013121
lgcols 351580793
lgpol 2684161505
lincombii 38223549
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 16818199
mkcol 10639682
mkcol2 156889403
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33554
mkcols 40411
mkcomplex 91598539
mkerr 0
mkfrac 41640208
mkfraccopy 4999661
mkfracss 1209563
mkintmod 8092674
mkintmodu 1813
mkmat 4750909
mkmat2 33653905
mkmat22 50283995
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122275
mkmoo 108795
mkoo 1331921
mkpadic 2009
mkpolmod 3103725
mkqfb 27929799
mkquad 69118
mkrfrac 698438
mkrfraccopy 14
mkvec 71105776
mkvec2 185450913
mkvec2copy 114529
mkvec2s 220247
mkvec3 116800605
mkvec3s 524441
mkvec4 10093774
mkvec4s 21
mkvec5 15185678
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131633463
mkvecsmall2 234843667
mkvecsmall3 104170819
mkvecsmall4 18657326
mkvecsmall5 1717537
modpr_get_T 13867109
modpr_get_p 1887627
modpr_get_pr 31236630
mul_content 2657080
mul_denom 10707609
mulsubii 3881345
nbits2extraprec 1457931435
nbits2ndec 228
nbits2nlong 12745544
nbits2prec 186123521
nbrows 157459249
nchar2nlong 127388108
ndec2nbits 8270
ndec2nlong 41549
ndec2prec 33279
nfV_to_scalar_or_alg 26300
nf_get_G 304827
nf_get_M 21745506
nf_get_Tr 22078
nf_get_degree 71368642
nf_get_diff 4445
nf_get_disc 463480
nf_get_index 3711384
nf_get_invzk 9767155
nf_get_pol 98106982
nf_get_r1 23466011
nf_get_r2 4154
nf_get_ramified_primes 64644
nf_get_roots 1628895
nf_get_roundG 1748129
nf_get_sign 519552
nf_get_varn 1503553
nf_get_zk 4382
nf_get_zkden 5459836
nf_get_zkprimpart 5413997
normalize_frac 17205086
odd 2089208934
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 509444149
pari_malloc 745348246
pari_realloc 1890
pari_realloc_ip 2255330
pari_stack_alloc 1019654025
pari_stack_base 1025153741
pari_stack_delete 5556896
pari_stack_init 6051347
pari_stack_new 924966211
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781841
perm_mul 80887958
perm_sqr 728
pol0_F2x 13245062
pol0_Flx 103471337
pol1_F2x 3956501
pol1_Flx 55051503
pol_0 82996603
pol_1 3755671
pol_x 3856987
pol_xn 2249279
pol_xnall 294
polx_F2x 1078806
polx_Flx 37485442
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130302
pr_get_e 16161710
pr_get_f 26442750
pr_get_gen 12071045
pr_get_p 92749636
pr_get_tau 49767762
pr_is_inert 17223735
pr_norm 1090453
prec2lg 4468432650
prec2nbits 103962944
prec2nbits_mul 581165
prec2ndec 9778
precdbl 475354
qfb_disc 18502464
qfb_disc3 4995855
qfb_is_qfi 62326721
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8000588182
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 763885
row_i 987
rowcopy 204988
rowpermute 14705109
rowslice 79291468
rowslicepermute 185091
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27631787
sqrfrac 4148198
sqrti 6610177
sqrtnr 2810090
sqrtr 80367985
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60120380
truecoef 0
trunc_safe 0
ulogint 1720328
upr_norm 346136
uutoQ 1600198
vec_append 3465052
vec_ei 1713861
vec_lengthen 18960
vec_prepend 313997
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036608
veclast 9372699
vecmodii 0
vecmoduu 49784
vecpermute 20548722
vecreverse 697277
vecreverse_inplace 2605
vecslice 655774728
vecslicepermute 2690477
vecsmall_append 4099602
vecsmall_coincidence 0
vecsmall_concat 1464222
vecsmall_copy 4403844
vecsmall_ei 584725
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1164088
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75638
vecsmall_to_col 7838766
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78692552
vecsmalltrunc_append 100871557
vecsmalltrunc_init 190285528
vecsplice 384922
vectrunc_append 15851300
vectrunc_append_batch 9667
vectrunc_init 11767308
zc_to_ZC 7824584
zero_F2m 0
zero_F2m_copy 845060
zero_F2v 3647719
zero_F2x 1350
zero_Flm 2829355
zero_Flm_copy 238229
zero_Flv 59668872
zero_Flx 1426826
zero_zm 0
zero_zv 36731886
zero_zx 0
zerocol 122328420
zeromat 109088
zeromatcopy 14249648
zeropadic 855819
zeropadic_shallow 17023
zeropol 42354031
zeroser 138908
zerovec 28453587
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 2183770
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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