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 30657-d14c2a9e4e) Lines: 1420 1535 92.5 %
Date: 2026-01-29 09:23:20 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 1813
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 17024
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 22078
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 33562
Qtoss 35322
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 37766
FqX_div 38568
FqX_deriv 40061
mkcols 40411
bid_get_arch 41187
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47720
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58507
RgX_fpnorml2 61600
err_get_num 62551
bid_get_gen 64274
nf_get_ramified_primes 64643
RgX_is_rational 68165
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 80387
mkcol3 88314
cyclic_perm 99911
gtou 100707
mkcol4 103467
zv_to_zx 104146
mkmoo 108793
zeromat 109075
RgV_isin 110144
RgV_isin_i 110144
mkvec2copy 114529
Q_abs_shallow 120230
mkmatcopy 122272
mkveccopy 122521
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138442
zeroser 138908
RgV_is_QV 140735
FqX_factor 140946
get_FpXQX_mod 146583
FlxqX_div_pre 165415
znstar_get_U 176107
rowslicepermute 185061
vecsmall_prepend 186970
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200441
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220248
mkcol6 232470
ellR_get_prec 232750
zero_Flm_copy 238231
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249621
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 282996
bnf_get_fu_nocheck 289090
bnf_get_tuU 303583
nf_get_G 304900
vec_prepend 314010
get_FlxqX_degree 317565
rnf_get_polabs 327628
Flx_constant 333962
cxtoreal 337204
upr_norm 346133
RgX_renormalize 349807
abgrp_get_no 354948
ZM_hnfrem 363762
FqX_mul 367710
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384921
RgX_is_QX 399934
perm_conj 418299
FqX_Fq_mul 427301
FqX_extgcd 444772
Z_issquare 457644
nf_get_disc 463484
precdbl 475383
RgX_shift_inplace 479399
RgX_shift_inplace_init 479399
zv_to_ZV 502982
vecsmall_to_vec 511781
nf_get_sign 519551
mkvec3s 524441
gdivsg 531590
addmuliu 535763
FqX_Fp_mul 571664
prec2nbits_mul 581164
vecsmall_ei 584711
ZM_ZV_mod 596506
RgC_fpnorml2 619848
FqX_is_squarefree 683802
vecreverse 697276
mkrfrac 698439
coltrunc_init 740250
logint 754833
gcmpgs 761923
row 763892
rnf_get_nf 786086
ellff_get_a4a6 800025
zero_F2m_copy 845037
FpXX_renormalize 849917
zeropadic 855880
gmin_shallow 877786
affgr 898901
ZXQ_sqr 960431
cgetc 975457
Flx_lead 978377
polx_F2x 1078028
pr_norm 1090478
sstoQ 1097215
Fp_invsafe 1100362
Flx_mulu 1105371
vecsmall_max 1164187
mkfracss 1209563
RgV_isscalar 1210268
gen_I 1269709
RgX_is_monomial 1331379
mkoo 1331901
bnf_get_sunits 1367778
rnf_get_absdegree 1392746
bnr_get_nf 1399080
zero_Flx 1426904
constant_coeff 1441432
Rg_col_ei 1450956
inf_get_sign 1452952
vecsmall_concat 1464203
guncloneNULL_deep 1492079
nf_get_varn 1503758
bid_get_mod 1521921
F2m_flip 1553938
F2v_flip 1553938
F2x_flip 1553938
F2x_div 1569532
uutoQ 1600198
nf_get_roots 1628942
bnf_get_gen 1680305
vec_ei 1713847
ulogint 1714798
mkvecsmall5 1717497
gsubgs 1724803
nf_get_roundG 1748213
abgrp_get_gen 1765019
ellinf 1869909
modpr_get_p 1887627
get_F2x_degree 1928996
killblock 1949061
Flx_div 1997991
ellnf_get_nf 2027237
ellff_get_field 2036856
bnr_get_bid 2046092
ell_get_j 2126269
bid_get_MOD 2157256
bid_get_sprk 2157984
ZXQ_mul 2161179
zv_copy 2183758
bid_get_fact2 2201577
gc_slice 2204347
pol_xn 2249280
pari_realloc_ip 2348399
bid_get_archp 2397116
bid_get_fact 2498934
get_F2x_mod 2499217
rnf_get_degree 2506335
bnr_get_cyc 2522563
get_F2x_var 2534025
ell_get_b4 2550216
Flv_copy 2554993
mul_content 2657218
RgX_coeff 2669861
vecslicepermute 2690459
cyc_get_expo 2757542
hash_str 2760615
perm_inv 2781878
sqrtnr 2810236
zero_Flm 2829402
bnr_get_clgp 2830227
rnf_get_pol 2845192
znstar_get_pe 2869063
F2x_equal1 2873824
bnf_get_logfu 2874756
gisdouble 2996437
mkpolmod 3103725
Fq_red 3106396
bit_accuracy_mul 3175484
ZV_to_zv 3211406
identity_perm 3241442
F3m_coeff 3255863
identity_zv 3265792
znstar_get_conreygen 3290176
ell_get_b8 3297414
get_FpX_mod 3394361
vec_append 3464611
zero_F2v 3647707
bid_get_U 3680233
bnf_get_cyc 3686144
bnr_get_bnf 3710944
nf_get_index 3711407
pol_1 3755699
pol_x 3857201
ell_get_b6 3863115
mulsubii 3881894
pol1_F2x 3957523
vec_to_vecsmall 4036623
vecsmall_append 4099140
sqrfrac 4148249
vecsmall_copy 4403863
mkcol2s 4416244
F2x_equal 4662650
FpXQX_renormalize 4694418
mkmat 4750894
qfb_disc3 4996065
mkfraccopy 4999633
is_rational_t 5032645
bnf_get_clgp 5374993
nf_get_zkprimpart 5413971
nf_get_zkden 5459865
FpX_div 5581195
checkell_i 5593285
isintm1 5710230
bid_get_cyc 5739821
bid_get_grp 5804674
pari_stack_delete 5835033
col_ei 5924551
pari_stack_init 6351799
get_FpX_degree 6424464
Flm_copy 6433505
sqrti 6610099
get_FpX_var 6958071
RgX_div 7000642
vecsmall_lexcmp 7043259
ell_get_a2 7106183
ZM_lll 7117797
RgX_gtofp 7145298
znstar_get_faN 7331711
ell_get_b2 7371025
ZX_is_monic 7374280
zc_to_ZC 7824535
vecsmall_to_col 7838718
znstar_get_conreycyc 7979693
F2m_coeff 8038083
Q_abs 8062636
mkintmod 8092518
ZV_ZV_mod 8131508
RgM_gtofp 8258023
Flx_equal1 8329782
gc_INT_affii 8492431
ell_get_a4 8536724
Flm_row 8741354
ell_get_a3 8814047
ell_get_a1 8997079
cxtofp 9079866
veclast 9372714
ismpzero 9584543
is_intreal_t 9584684
const_col 9729679
RgM_dimensions 9741732
nf_get_invzk 9767373
bnf_get_nf 9865161
mkvec4 10093801
ser_isexactzero 10120284
ell_get_a6 10370962
mkcol 10639776
ZC_hnfrem 10697511
mul_denom 10707735
ell_get_c4 11018081
Fp_addmul 11221385
vectrunc_init 11766644
pr_get_gen 12071152
abgrp_get_cyc 12230769
F2v_clear 12353438
F2x_clear 12353445
ell_get_type 12498999
nbits2nlong 12753980
pol0_F2x 13244365
ell_get_c6 13474504
gmax_shallow 13510199
modpr_get_T 13867112
zeromatcopy 14250142
rowpermute 14705302
closure_get_frame 14715295
Fp_div 15034424
Fp_divu 15128907
mkvec5 15185705
vectrunc_append 15852480
pr_get_e 16161626
ell_get_disc 16815239
matslice 16818913
normalize_frac 17205626
pr_is_inert 17223719
isint1 17584868
Fp_center_i 18000469
cxcompotor 18211551
qfb_disc 18502539
mkvecsmall4 18657170
const_vecsmall 19706454
vecpermute 20548390
Fp_double 20814801
Flx_div_pre 21691229
nf_get_M 21745638
RgM_shallowcopy 22179554
RgX_is_ZX 22423204
gmulgs 22613552
Fp_inv 23440257
nf_get_r1 23466097
ZV_isscalar 23674858
get_Flx_mod 25595328
pr_get_f 26442609
RgX_equal_var 26883011
shallowcopy 27632070
mkqfb 27930220
zerovec 28453551
modpr_get_pr 31236584
Fp_neg 31479219
hash_str_len 31629599
submulii 31982591
RgV_is_ZV 32158273
mkmat2 33654103
RgC_gtofp 34031427
const_vec 34564949
zero_zv 36732126
polx_Flx 37485295
lincombii 38234613
znstar_get_N 38655073
mkfrac 41641054
zeropol 42353964
powii 43130469
is_vec_t 43960251
closure_is_variadic 45903628
absfrac 46638724
guncloneNULL 48006227
pr_get_tau 49767605
mkmat22 50283038
ell_is_inf 52344026
QV_isscalar 54416112
pol1_Flx 55058954
addmuliu_inplace 59638905
zero_Flv 59670314
submuliu_inplace 60133320
F2x_copy 60476566
gtodouble 60780548
is_real_t 62062467
qfb_is_qfi 62316284
Fp_sqr 63642506
Fp_mulu 68124456
get_Flx_var 68356972
mkvec 71183146
nf_get_degree 71369682
Fp_center 77196966
vecsmallpermute 78695583
rowslice 79306195
sqrtr 80373986
perm_mul 80891078
Fp_red 82191294
get_Flx_degree 82590629
pol_0 82996689
gtos 85855696
is_noncalc_t 85871631
cxnorm 91200749
mkcomplex 91616714
pr_get_p 92749353
dbllog2r 92816420
nf_get_pol 98107788
vecsmalltrunc_append 100895037
F2v_set 101403011
cgiv 102679943
RgX_copy 103406638
pol0_Flx 103479239
prec2nbits 103964805
mkvecsmall3 104173176
vecsmall_prefixcmp 108088071
gc_all 109636379
F2x_renormalize 115286066
mkvec3 118953578
zerocol 122332271
gaddgs 123248635
both_odd 123974169
F2x_set 124752785
nchar2nlong 127558147
mkvecsmall 131639623
equalim1 139505544
bit_prec 143253444
FpX_renormalize 144214119
ZX_renormalize 155005979
mkcol2 156887839
nbrows 157465399
leading_coeff 170224005
Flx_copy 173221540
Fp_add 181043751
mkvec2 184873844
nbits2prec 186135616
vecsmalltrunc_init 189174883
Fp_mul 200709798
Fp_sub 202494100
mkvecsmall2 234934281
gtofp 254314645
gc_GEN 255524867
gmulgu 282059384
lg_increase 315430361
closure_get_data 322077025
closure_get_oper 322107034
closure_codestr 322137485
is_universal_constant 326454402
lgcols 351599140
closure_arity 372528632
is_scalar_t 375658711
bin_copy 496062237
pari_free 509542865
is_bigint 563399727
leafcopy_avma 577366920
vecslice 655810770
is_matvec_t 659518974
F2v_coeff 661317455
F2x_coeff 667890216
pari_malloc 745493036
pari_stack_new 926916868
GENbinbase 961915181
pari_stack_alloc 1022153165
pari_stack_base 1027988373
gc_leaf 1137980625
equali1 1174298039
nbits2extraprec 1458229595
gc_upto 1954459275
odd 2089279824
is_pm1 2205478675
lgpol 2689232748
isintzero 2844234867
bit_accuracy 3160076618
gc_INT 4111110620
prec2lg 4468622399
is_const_t 4898380429
degpol 5494854524
remsBIL 8001545308
icopy_avma 8039723293
divsBIL 8092631680
isonstack 8275733196
is_recursive_t 9238338957

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