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: 2026-02-11 09:23:10 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
F2xX_shift 0
F3m_copy 0
F3m_set 0
FlxqX_div 0
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQ_add 0
FpXQ_sub 0
FqXQ_add 0
FqXQ_div 0
FqXQ_inv 0
FqXQ_invsafe 0
FqXQ_pow 0
FqXQ_sqr 0
FqXQ_sub 0
FqX_divrem 0
FqX_halfgcd 0
FqX_integ 0
FqXn_exp 0
FqXn_sqr 0
R_abs 0
RgX_isscalar 0
bid_get_gen_nocheck 0
bid_get_no 0
cbrtr 0
cbrtr_abs 0
closure_get_code 0
gchar_get_U 0
gchar_get_hnf 0
gmaxsg 0
gminsg 0
inv_content 0
is_qfb_t 0
mkcol4s 0
mkerr 0
mkmat5 0
mkvec5s 0
mkvec6 0
pari_err_FILE 0
pari_err_MAXPRIME 0
pari_err_PACKAGE 0
polx_zx 0
random_Fq 0
truecoef 0
trunc_safe 0
vec_setconst 0
vecmodii 0
vecsmall_coincidence 0
zero_F2m 0
zero_zm 0
zero_zx 0
zm_copy 0
zm_row 0
zm_to_zxV 0
zx_shift 0
zx_to_zv 0
FqX_ddf 7
FqX_factor_squarefree 7
mkrfraccopy 14
pari_err_BUG 14
znstar_get_no 14
RgM_gtomp 21
mkvec4s 21
pari_err_CONSTPOL 21
vecsmall_indexmax 21
vecsmall_indexmin 21
pari_err_FILEDESC 36
F2v_ei 42
RgV_gtofp 56
pari_err_IRREDPOL 63
pari_err_ROOTS0 63
bnr_get_gen_nocheck 70
mkmat4 84
vecsmall_isin 84
vecsmall_pack 84
gal_get_e 91
pari_err_COPRIME 91
mkcol5 94
Z_ispower 98
pari_err_FLAG 98
pari_err_PRIME 98
rnf_get_index 105
ellnf_get_bnf 119
RgX_to_RgV 140
pari_err_OVERFLOW 156
mkvecs 168
FqX_to_mod 175
pari_err_COMPONENT 214
nbits2ndec 228
pari_err_PREC 238
pari_err_PRIORITY 245
zm_transpose 266
rowsplice 273
err_get_compo 294
pol_xnall 294
mkvec6s 301
ellQp_get_prec 308
mkcol3s 315
gchar_get_nfree 322
gchar_get_ntors 322
get_F2xqX_mod 343
rnf_get_disc 357
pari_err_VAR 371
polxn_Flx 371
sturm 385
pari_err_OP 406
pari_err_IMPL 539
vecsmall_lengthen 547
RgC_gtomp 574
rnf_get_varn 574
gchar_get_r2 623
gchar_set_HUUi 630
gchar_set_nalg 630
gchar_set_nfree 630
gchar_set_ntors 630
bnf_get_reg 648
pari_err_DIM 718
perm_sqr 728
Rg_to_Fq 756
F2m_set 798
gchar_set_m0 945
row_i 987
RgM_minor 1036
quad_disc 1085
ellQp_get_p 1134
gchar_copy_precs 1225
gchar_set_prec 1225
rnf_get_invzk 1225
rnf_get_k 1225
locs_get_Lgenfil 1288
locs_get_famod 1288
FqX_powu 1295
pari_err_MODULUS 1316
zero_F2x 1350
rnf_get_idealdisc 1386
rnf_get_alpha 1428
ellQp_get_zero 1463
powIs 1561
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_get_sfu 1743
gchar_set_evalprec 1813
mkintmodu 1834
gchar_get_nm 1869
pari_realloc 1890
RgXQX_div 1904
mkpadic 2009
gchar_get_nalg 2044
gchar_set_nf 2110
gchar_set_u0 2121
vecsmall_min 2345
vecreverse_inplace 2605
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2862
gchar_set_nfprec 2968
vecsmall_reverse 3052
vecsmall_to_vec_inplace 3304
gchar_get_m0 3318
pari_err_TYPE2 3493
get_FpXQX_degree 3589
matpascal 3983
gchar_get_evalprec 4011
gchar_get_modP 4095
FqX_normalize 4144
nf_get_r2 4154
gchar_get_u0 4252
nf_get_zk 4382
nf_get_diff 4445
F2v_copy 4487
FpXQX_div 4526
rnf_get_zk 4830
rnf_get_nfvarn 4886
idealchineseinit 5427
pari_stack_pushp 5851
gal_get_p 6006
FqX_get_red 6090
gval 6230
FqXn_expint 6590
gal_get_orders 6678
is_extscalar_t 6876
pari_err_SQRTN 7084
FqXn_inv 7126
rnf_get_nfzk 7245
FqX_roots 7273
submuliu 7700
bnr_get_gen 7847
get_FlxqX_mod 8033
identity_ZV 8113
gchar_get_mod 8225
locs_get_mod 8225
ndec2nbits 8270
FqX_gcd 8288
bnf_get_no 8372
vectrunc_append_batch 9667
prec2ndec 9778
cgetalloc 10166
gchar_get_Ui 10983
vec_shorten 11557
ZX_equal1 12850
R_abs_shallow 13097
gchar_get_nfprec 13468
closure_get_dbg 13635
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15435
znstar_get_gen 16150
gchar_get_cyc 16177
mkmat3 17001
zeropadic_shallow 17150
gchar_get_r1 17444
Fp_muls 17780
gchar_get_prec 18795
vec_lengthen 18960
FqX_halve 19411
pari_err_INV 20018
FpXY_Fq_evaly 20587
rnf_get_nfdegree 21455
FqX_mulu 21942
nf_get_Tr 22084
gtomp 22428
RgM_fpnorml2 22662
FqXQ_mul 22766
ZV_dvd 23485
gal_get_mod 23758
FqX_neg 24956
FqX_red 25354
bnf_get_fu 25859
nfV_to_scalar_or_alg 26300
gal_get_den 27867
gal_get_invvdm 27874
absfrac_shallow 28237
gequalgs 29176
zerovec_block 29654
gener_Fq_local 29946
gal_get_roots 32732
gchar_get_basis 32816
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33551
Qtoss 35364
gal_get_pol 36316
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37079
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 37795
FqX_div 38564
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47734
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58504
RgX_fpnorml2 61600
err_get_num 62551
bid_get_gen 64274
nf_get_ramified_primes 64644
RgX_is_rational 68166
FqX_sub 68607
mkquad 69118
FqX_div_by_X_x 69699
quadnorm 69881
FqX_sqr 71855
bid_get_ideal 72842
Fq_to_FpXQ 73652
vecsmall_shorten 75641
bnr_get_mod 77119
gal_get_group 80386
mkcol3 88314
cyclic_perm 99911
gtou 100703
mkcol4 103467
zv_to_zx 104146
mkmoo 108799
zeromat 109080
RgV_isin 110144
RgV_isin_i 110144
mkvec2copy 114528
Q_abs_shallow 120220
mkmatcopy 122278
mkveccopy 122521
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138437
zeroser 138943
RgV_is_QV 140735
FqX_factor 140960
get_FpXQX_mod 146583
FlxqX_div_pre 165411
znstar_get_U 176107
rowslicepermute 185038
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200440
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220251
mkcol6 232470
ellR_get_prec 232750
zero_Flm_copy 238234
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249624
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264420
bnr_get_no 277488
gchar_get_zm 281911
bnf_get_tuN 283002
bnf_get_fu_nocheck 289092
bnf_get_tuU 303583
nf_get_G 304876
vec_prepend 314006
get_FlxqX_degree 317565
rnf_get_polabs 327628
Flx_constant 334026
cxtoreal 337207
upr_norm 346136
RgX_renormalize 349807
abgrp_get_no 354947
ZM_hnfrem 363786
FqX_mul 367705
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384921
RgX_is_QX 399940
perm_conj 418299
FqX_Fq_mul 427281
FqX_extgcd 444766
Z_issquare 457642
nf_get_disc 463487
precdbl 475403
RgX_shift_inplace 479368
RgX_shift_inplace_init 479368
zv_to_ZV 502982
vecsmall_to_vec 511781
nf_get_sign 519551
mkvec3s 524441
gdivsg 531592
addmuliu 535709
FqX_Fp_mul 571655
prec2nbits_mul 581165
vecsmall_ei 584731
ZM_ZV_mod 596654
RgC_fpnorml2 619845
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 754842
gcmpgs 761902
row 763894
rnf_get_nf 786086
ellff_get_a4a6 800023
zero_F2m_copy 845050
FpXX_renormalize 849903
zeropadic 857306
gmin_shallow 877747
affgr 899594
ZXQ_sqr 960347
cgetc 975460
Flx_lead 978512
polx_F2x 1078475
pr_norm 1090515
sstoQ 1097313
Fp_invsafe 1100343
Flx_mulu 1105469
vecsmall_max 1164088
mkfracss 1209563
RgV_isscalar 1210273
gen_I 1269740
RgX_is_monomial 1331370
mkoo 1331907
bnf_get_sunits 1367772
rnf_get_absdegree 1392746
bnr_get_nf 1399073
zero_Flx 1426917
constant_coeff 1441424
Rg_col_ei 1451018
inf_get_sign 1452967
vecsmall_concat 1464253
guncloneNULL_deep 1493176
nf_get_varn 1503783
bid_get_mod 1521922
F2m_flip 1554224
F2v_flip 1554224
F2x_flip 1554224
F2x_div 1571103
uutoQ 1602144
nf_get_roots 1628950
bnf_get_gen 1680301
vec_ei 1713864
mkvecsmall5 1717485
gsubgs 1724811
ulogint 1726119
nf_get_roundG 1748186
abgrp_get_gen 1765011
ellinf 1869940
modpr_get_p 1887627
get_F2x_degree 1928935
killblock 1951882
Flx_div 1998022
ellnf_get_nf 2027243
ellff_get_field 2036842
bnr_get_bid 2046089
ell_get_j 2126269
bid_get_MOD 2157256
bid_get_sprk 2157977
ZXQ_mul 2161056
zv_copy 2183752
bid_get_fact2 2201576
gc_slice 2204355
pol_xn 2249530
pari_realloc_ip 2348227
bid_get_archp 2397116
bid_get_fact 2498964
get_F2x_mod 2499299
rnf_get_degree 2506335
bnr_get_cyc 2522559
get_F2x_var 2533908
ell_get_b4 2550216
Flv_copy 2554996
mul_content 2657296
RgX_coeff 2669861
vecslicepermute 2691928
cyc_get_expo 2757568
hash_str 2760615
perm_inv 2782096
sqrtnr 2810227
bnr_get_clgp 2830230
zero_Flm 2830691
rnf_get_pol 2845192
znstar_get_pe 2869063
F2x_equal1 2874069
bnf_get_logfu 2874784
gisdouble 2996456
mkpolmod 3103720
Fq_red 3106497
bit_accuracy_mul 3175484
ZV_to_zv 3211716
identity_perm 3242340
F3m_coeff 3255972
identity_zv 3266691
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3394337
vec_append 3464631
zero_F2v 3647738
bid_get_U 3680228
bnf_get_cyc 3686139
bnr_get_bnf 3710950
nf_get_index 3711404
pol_1 3755790
pol_x 3857312
ell_get_b6 3863115
mulsubii 3882190
pol1_F2x 3956831
vec_to_vecsmall 4036941
vecsmall_append 4114679
sqrfrac 4148306
vecsmall_copy 4403799
mkcol2s 4416244
F2x_equal 4672381
FpXQX_renormalize 4694573
mkmat 4750849
qfb_disc3 4995801
mkfraccopy 4999795
is_rational_t 5032685
bnf_get_clgp 5374981
nf_get_zkprimpart 5414185
nf_get_zkden 5459904
FpX_div 5581196
checkell_i 5593288
isintm1 5710362
bid_get_cyc 5739867
bid_get_grp 5804720
pari_stack_delete 5830906
col_ei 5924606
pari_stack_init 6351713
get_FpX_degree 6424451
Flm_copy 6433663
sqrti 6610286
get_FpX_var 6958103
RgX_div 6997996
vecsmall_lexcmp 7043249
ell_get_a2 7106177
ZM_lll 7117719
RgX_gtofp 7145441
znstar_get_faN 7334819
ell_get_b2 7371030
ZX_is_monic 7374243
zc_to_ZC 7824660
vecsmall_to_col 7838841
znstar_get_conreycyc 7982108
F2m_coeff 8038691
Q_abs 8062842
mkintmod 8070770
ZV_ZV_mod 8131976
RgM_gtofp 8257999
Flx_equal1 8329932
gc_INT_affii 8493047
ell_get_a4 8536718
Flm_row 8742095
ell_get_a3 8814045
ell_get_a1 8997077
cxtofp 9079947
veclast 9372704
ismpzero 9584544
is_intreal_t 9584650
const_col 9729715
RgM_dimensions 9741653
nf_get_invzk 9767611
bnf_get_nf 9865175
mkvec4 10094889
ser_isexactzero 10120326
ell_get_a6 10370956
mkcol 10639778
ZC_hnfrem 10697522
mul_denom 10707861
ell_get_c4 11017995
Fp_addmul 11268671
vectrunc_init 11767655
pr_get_gen 12071307
abgrp_get_cyc 12230841
F2v_clear 12353976
F2x_clear 12353982
ell_get_type 12499022
nbits2nlong 12752420
pol0_F2x 13247351
ell_get_c6 13474421
gmax_shallow 13510199
modpr_get_T 13867123
zeromatcopy 14249934
rowpermute 14707076
closure_get_frame 14717246
Fp_div 15034636
Fp_divu 15129048
mkvec5 15185985
vectrunc_append 15855821
pr_get_e 16161543
ell_get_disc 16814967
matslice 16824962
normalize_frac 17206559
pr_is_inert 17224019
isint1 17586409
Fp_center_i 18030995
cxcompotor 18211755
qfb_disc 18502512
mkvecsmall4 18678541
const_vecsmall 19707311
vecpermute 20550082
Fp_double 20959637
Flx_div_pre 21689792
nf_get_M 21745531
RgM_shallowcopy 22179789
RgX_is_ZX 22423264
gmulgs 22624294
Fp_inv 23441597
nf_get_r1 23465982
ZV_isscalar 23674691
get_Flx_mod 25596272
pr_get_f 26443151
RgX_equal_var 26883007
shallowcopy 27632441
mkqfb 27929709
zerovec 29292207
modpr_get_pr 31236590
Fp_neg 31477052
hash_str_len 31631896
submulii 31982591
RgV_is_ZV 32160177
mkmat2 33654480
RgC_gtofp 34032848
const_vec 34567678
zero_zv 36736787
polx_Flx 37489089
lincombii 38240391
znstar_get_N 38658713
mkfrac 41646530
zeropol 42353419
powii 43130422
is_vec_t 43970373
closure_is_variadic 45906204
absfrac 46540331
guncloneNULL 48008529
pr_get_tau 49768229
mkmat22 50294147
ell_is_inf 52426412
QV_isscalar 54417053
pol1_Flx 55059300
addmuliu_inplace 59653018
zero_Flv 59674807
submuliu_inplace 60148980
F2x_copy 60581973
gtodouble 60785087
is_real_t 62059883
qfb_is_qfi 62322567
Fp_sqr 64556186
get_Flx_var 68359147
Fp_mulu 69003049
mkvec 71267720
nf_get_degree 71371180
Fp_center 77354913
vecsmallpermute 78726093
rowslice 79361516
sqrtr 80380798
perm_mul 80921432
Fp_red 82193719
pol_0 82787610
get_Flx_degree 82975364
is_noncalc_t 85780898
gtos 85855651
cxnorm 91200481
mkcomplex 91615838
pr_get_p 92749960
dbllog2r 92822491
nf_get_pol 98110634
vecsmalltrunc_append 100899702
F2v_set 101403487
cgiv 102687845
RgX_copy 103403353
pol0_Flx 103468483
prec2nbits 103975051
mkvecsmall3 104186616
vecsmall_prefixcmp 108088071
gc_all 109639226
F2x_renormalize 115432878
mkvec3 120112877
zerocol 122335597
gaddgs 123248664
both_odd 124015377
F2x_set 124754467
nchar2nlong 127562230
mkvecsmall 131627244
equalim1 139505466
bit_prec 143263450
FpX_renormalize 144226127
ZX_renormalize 155067470
mkcol2 156928382
nbrows 157475847
leading_coeff 170215735
Flx_copy 173231214
Fp_add 181378911
nbits2prec 186145986
mkvec2 186483687
vecsmalltrunc_init 192512469
Fp_mul 200882474
Fp_sub 203227359
mkvecsmall2 234981057
gtofp 254352387
gc_GEN 255459451
gmulgu 283104681
closure_get_data 321246672
closure_get_oper 321269427
closure_codestr 321287253
lg_increase 322554925
is_universal_constant 326538332
lgcols 351665277
closure_arity 371699736
is_scalar_t 375681805
bin_copy 496007835
pari_free 509493756
is_bigint 563423192
leafcopy_avma 577233443
vecslice 656636260
is_matvec_t 658615587
F2v_coeff 661321687
F2x_coeff 667841178
pari_malloc 745438817
pari_stack_new 926031073
GENbinbase 961796192
pari_stack_alloc 1021313729
pari_stack_base 1027105505
gc_leaf 1140103268
equali1 1174072680
nbits2extraprec 1458640700
gc_upto 1955423124
odd 2090828208
is_pm1 2205789930
lgpol 2692736578
isintzero 2846152355
bit_accuracy 3160644408
gc_INT 4113758369
prec2lg 4472219167
is_const_t 4901387021
degpol 5502884215
remsBIL 8006394695
icopy_avma 8042897403
divsBIL 8097460823
isonstack 8280006892
is_recursive_t 9238594886

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