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 30674-be81ecfdd4) Lines: 1421 1535 92.6 %
Date: 2026-02-12 09:23:52 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 8038913
F2m_copy 200433
F2m_flip 1554354
F2m_set 798
F2v_clear 12354077
F2v_coeff 661321761
F2v_copy 4487
F2v_ei 42
F2v_flip 1554354
F2v_set 101403729
F2v_to_F2x 37944
F2xX_shift 0
F2x_clear 12354079
F2x_coeff 667904964
F2x_copy 60694129
F2x_div 1572025
F2x_equal 4678559
F2x_equal1 2874032
F2x_flip 1554354
F2x_renormalize 115621959
F2x_set 124807209
F2xqX_div 33173
F3m_coeff 3255865
F3m_copy 0
F3m_set 0
Flm_copy 6433562
Flm_row 8741255
Flv_copy 2555012
Flx_constant 333937
Flx_copy 173226275
Flx_div 1997981
Flx_div_pre 21691117
Flx_equal1 8329813
Flx_lead 978583
Flx_mulu 1105337
FlxqX_div 0
FlxqX_div_pre 165412
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694615
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849903
FpXY_Fq_evaly 20587
FpX_div 5581152
FpX_renormalize 144230486
Fp_add 181205672
Fp_addmul 11239395
Fp_center 77217917
Fp_center_i 17959884
Fp_div 15034362
Fp_divu 15128870
Fp_double 20860064
Fp_halve 247271
Fp_inv 23441514
Fp_invsafe 1100339
Fp_mul 200747984
Fp_muls 17780
Fp_mulu 69207775
Fp_neg 31480040
Fp_red 82191422
Fp_sqr 64215721
Fp_sub 203044859
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 571655
FqX_Fq_mul 427287
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38561
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444769
FqX_factor 140960
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 3106414
Fq_to_FpXQ 73652
GENbinbase 961760752
QV_isscalar 54415687
Q_abs 8062828
Q_abs_shallow 120238
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619856
RgC_gtofp 34028457
RgC_gtomp 574
RgM_dimensions 9741661
RgM_fpnorml2 22662
RgM_gtofp 8257270
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22178905
RgV_gtofp 56
RgV_is_QV 140733
RgV_is_ZV 32160182
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210267
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103403331
RgX_div 6997996
RgX_equal_var 26883016
RgX_fpnorml2 61601
RgX_gtofp 7145491
RgX_is_QX 399931
RgX_is_ZX 22423011
RgX_is_monomial 1331371
RgX_is_rational 68166
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479401
RgX_shift_inplace_init 479401
RgX_to_RgV 140
Rg_col_ei 1450911
Rg_to_Fq 756
ZC_hnfrem 10697295
ZM_ZV_mod 596634
ZM_hnfrem 363816
ZM_lll 7117266
ZV_ZV_mod 8131907
ZV_dvd 23485
ZV_isscalar 23675112
ZV_to_zv 3211715
ZXQ_mul 2161063
ZXQ_sqr 960335
ZX_equal1 12850
ZX_is_monic 7374246
ZX_renormalize 155093306
Z_ispower 98
Z_issquare 457641
abgrp_get_cyc 12230829
abgrp_get_gen 1765036
abgrp_get_no 354950
absfrac 46540323
absfrac_shallow 28237
addmuliu 535771
addmuliu_inplace 59714984
affc_fixlg 249623
affgr 899594
bid_get_MOD 2157257
bid_get_U 3680239
bid_get_arch 41188
bid_get_archp 2397146
bid_get_cyc 5739862
bid_get_fact 2498971
bid_get_fact2 2201577
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804714
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157991
bin_copy 495990057
bit_accuracy 3161017251
bit_accuracy_mul 3175484
bit_prec 143254623
bnf_get_clgp 5375023
bnf_get_cyc 3686156
bnf_get_fu 25859
bnf_get_fu_nocheck 289085
bnf_get_gen 1680321
bnf_get_logfu 2874773
bnf_get_nf 9865191
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367774
bnf_get_tuN 283001
bnf_get_tuU 303583
bnr_get_bid 2046087
bnr_get_bnf 3710949
bnr_get_clgp 2830252
bnr_get_cyc 2522573
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399085
bnr_get_no 277489
both_odd 123850358
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975459
cgiv 102689974
checkell_i 5593272
closure_arity 373325046
closure_codestr 322956616
closure_get_code 0
closure_get_data 322906340
closure_get_dbg 13635
closure_get_frame 14716680
closure_get_oper 322936638
closure_get_text 37079
closure_is_variadic 45905102
col_ei 5924591
coltrunc_init 740257
const_col 9729688
const_vec 34566795
const_vecsmall 19705931
constant_coeff 1441434
cxcompotor 18214159
cxnorm 91203769
cxtofp 9081152
cxtoreal 337206
cyc_get_expo 2757569
cyclic_perm 99911
dbllog2r 92822404
degpol 5503077790
div_content 58504
divsBIL 8097293434
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997072
ell_get_a2 7106184
ell_get_a3 8814038
ell_get_a4 8536725
ell_get_a6 10370963
ell_get_b2 7371016
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017193
ell_get_c6 13473583
ell_get_disc 16813580
ell_get_j 2126269
ell_get_type 12498882
ell_is_inf 52384864
ellff_get_a4a6 800021
ellff_get_field 2036854
ellinf 1870069
ellnf_get_bnf 119
ellnf_get_nf 2027216
equali1 1174078564
equalim1 139505433
err_get_compo 294
err_get_num 62549
gaddgs 123248662
gal_get_den 27867
gal_get_e 91
gal_get_gen 15435
gal_get_group 80388
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 255316173
gc_INT 4113136030
gc_INT_affii 8493657
gc_all 109635138
gc_leaf 1140524317
gc_slice 2204532
gc_upto 1955242961
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 761913
gdivsg 531590
gen_I 1269727
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1929045
get_F2x_mod 2499311
get_F2x_var 2534074
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 83110852
get_Flx_mod 25596358
get_Flx_var 68357168
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 6424514
get_FpX_mod 3394344
get_FpX_var 6958423
gisdouble 2995296
gmax_shallow 13510200
gmaxsg 0
gmin_shallow 877804
gminsg 0
gmulgs 22563456
gmulgu 283104681
gsubgs 1724813
gtodouble 60788108
gtofp 254339829
gtomp 22428
gtos 85855588
gtou 100703
guncloneNULL 48022839
guncloneNULL_deep 1507469
gval 6230
hash_str 2760615
hash_str_len 31631734
icopy_avma 8041992330
idealchineseinit 5427
idealred 138441
identity_ZV 8113
identity_perm 3241956
identity_zv 3266306
inf_get_sign 1452932
inv_content 0
is_bigint 563383320
is_const_t 4899552744
is_extscalar_t 6876
is_intreal_t 9584443
is_matvec_t 660412219
is_noncalc_t 85778969
is_pm1 2205714338
is_qfb_t 0
is_rational_t 5032573
is_real_t 62059884
is_recursive_t 9238279407
is_scalar_t 375680945
is_universal_constant 328308956
is_vec_t 43958236
isint1 17586503
isintm1 5710452
isintzero 2845379320
ismpzero 9584344
isonstack 8283348842
killblock 1956988
leading_coeff 170217632
leafcopy_avma 577138945
lg_increase 313274352
lgcols 351626986
lgpol 2693795864
lincombii 38217630
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 754837
matpascal 3983
matslice 16823354
mkcol 10639747
mkcol2 156863926
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33559
mkcols 40411
mkcomplex 91627518
mkerr 0
mkfrac 41642521
mkfraccopy 4999433
mkfracss 1209563
mkintmod 8070601
mkintmodu 1834
mkmat 4750904
mkmat2 33654279
mkmat22 50282581
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122285
mkmoo 108791
mkoo 1331882
mkpadic 2009
mkpolmod 3103718
mkqfb 27929245
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71175870
mkvec2 184454771
mkvec2copy 114531
mkvec2s 220247
mkvec3 120513649
mkvec3s 524441
mkvec4 10094888
mkvec4s 21
mkvec5 15185863
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131643131
mkvecsmall2 234958724
mkvecsmall3 104185285
mkvecsmall4 18685032
mkvecsmall5 1717528
modpr_get_T 13867120
modpr_get_p 1887627
modpr_get_pr 31236620
mul_content 2657210
mul_denom 10707474
mulsubii 3881770
nbits2extraprec 1458353931
nbits2ndec 228
nbits2nlong 12755074
nbits2prec 186129203
nbrows 157459390
nchar2nlong 127557193
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304829
nf_get_M 21745877
nf_get_Tr 22084
nf_get_degree 71369193
nf_get_diff 4445
nf_get_disc 463469
nf_get_index 3711370
nf_get_invzk 9766907
nf_get_pol 98106648
nf_get_r1 23466295
nf_get_r2 4154
nf_get_ramified_primes 64644
nf_get_roots 1628906
nf_get_roundG 1748131
nf_get_sign 519550
nf_get_varn 1503794
nf_get_zk 4382
nf_get_zkden 5459737
nf_get_zkprimpart 5413963
normalize_frac 17205194
odd 2090906512
pari_calloc 47734
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 509492429
pari_malloc 745411022
pari_realloc 1890
pari_realloc_ip 2347268
pari_stack_alloc 1023319563
pari_stack_base 1029185180
pari_stack_delete 5875560
pari_stack_init 6353188
pari_stack_new 928042929
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781884
perm_mul 80908374
perm_sqr 728
pol0_F2x 13259836
pol0_Flx 103481669
pol1_F2x 3957825
pol1_Flx 55059496
pol_0 82787574
pol_1 3755816
pol_x 3857383
pol_xn 2249495
pol_xnall 294
polx_F2x 1078911
polx_Flx 37489215
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130275
pr_get_e 16161625
pr_get_f 26442557
pr_get_gen 12070760
pr_get_p 92749502
pr_get_tau 49767601
pr_is_inert 17223792
pr_norm 1090437
prec2lg 4472069394
prec2nbits 103968618
prec2nbits_mul 581162
prec2ndec 9778
precdbl 475410
qfb_disc 18502515
qfb_disc3 4995566
qfb_is_qfi 62323397
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8005984155
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 763857
row_i 987
rowcopy 204988
rowpermute 14705716
rowslice 79321610
rowslicepermute 184892
rowsplice 273
ser_isexactzero 10120326
shallowcopy 27631885
sqrfrac 4148302
sqrti 6610243
sqrtnr 2810020
sqrtr 80381441
sstoQ 1097313
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60204530
truecoef 0
trunc_safe 0
ulogint 1709695
upr_norm 346136
uutoQ 1602144
vec_append 3464591
vec_ei 1713871
vec_lengthen 18960
vec_prepend 314000
vec_setconst 0
vec_shorten 11556
vec_to_vecsmall 4036928
veclast 9372711
vecmodii 0
vecmoduu 49784
vecpermute 20547941
vecreverse 697305
vecreverse_inplace 2605
vecslice 656430731
vecslicepermute 2690846
vecsmall_append 4114694
vecsmall_coincidence 0
vecsmall_concat 1464188
vecsmall_copy 4403829
vecsmall_ei 584718
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043171
vecsmall_max 1163956
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75635
vecsmall_to_col 7838475
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78713284
vecsmalltrunc_append 100798394
vecsmalltrunc_init 188129995
vecsplice 384937
vectrunc_append 15855136
vectrunc_append_batch 9667
vectrunc_init 11768425
zc_to_ZC 7824293
zero_F2m 0
zero_F2m_copy 845043
zero_F2v 3647709
zero_F2x 1350
zero_Flm 2830313
zero_Flm_copy 238224
zero_Flv 59676182
zero_Flx 1426836
zero_zm 0
zero_zv 36737320
zero_zx 0
zerocol 122326341
zeromat 109064
zeromatcopy 14248846
zeropadic 857663
zeropadic_shallow 17150
zeropol 42353370
zeroser 138943
zerovec 29292209
zerovec_block 29654
zm_copy 0
zm_row 0
zm_to_zxV 0
zm_transpose 266
znstar_get_N 38658713
znstar_get_U 176107
znstar_get_Ui 46788
znstar_get_conreycyc 7982108
znstar_get_conreygen 3290526
znstar_get_cyc 262088
znstar_get_faN 7334819
znstar_get_gen 16150
znstar_get_no 14
znstar_get_pe 2869063
zv_copy 2183815
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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