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: 1420 1535 92.5 %
Date: 2026-01-11 09:21:30 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
pari_err_COPRIME 84
vecsmall_isin 84
vecsmall_pack 84
gal_get_e 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 13628
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15435
znstar_get_gen 16150
gchar_get_cyc 16177
mkmat3 17001
zeropadic_shallow 17023
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 22083
gtomp 22428
RgM_fpnorml2 22661
FqXQ_mul 22766
ZV_dvd 23485
gal_get_mod 23758
FqX_neg 24956
FqX_red 25354
bnf_get_fu 25858
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 33279
mkcolcopy 33548
Qtoss 35322
gal_get_pol 36316
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37065
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 37842
FqX_div 38569
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41549
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 58504
RgX_fpnorml2 61495
err_get_num 62537
bid_get_gen 64274
nf_get_ramified_primes 64643
RgX_is_rational 68162
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 75638
bnr_get_mod 77119
gal_get_group 80387
mkcol3 88314
gtou 99542
cyclic_perm 99911
mkcol4 103467
zv_to_zx 104146
mkmoo 108791
zeromat 109099
RgV_isin 110144
RgV_isin_i 110144
mkvec2copy 114528
Q_abs_shallow 120223
mkmatcopy 122276
mkveccopy 122521
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138440
zeroser 138908
RgV_is_QV 140734
FqX_factor 140946
get_FpXQX_mod 146583
FlxqX_div_pre 165414
znstar_get_U 176107
rowslicepermute 185275
vecsmall_prepend 186970
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200477
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 238224
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249623
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264420
bnr_get_no 277485
gchar_get_zm 281911
bnf_get_tuN 282999
bnf_get_fu_nocheck 289085
bnf_get_tuU 303579
nf_get_G 304870
vec_prepend 314004
get_FlxqX_degree 317565
rnf_get_polabs 327628
Flx_constant 334012
cxtoreal 337207
upr_norm 346131
RgX_renormalize 349807
abgrp_get_no 354946
ZM_hnfrem 363771
FqX_mul 367703
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384916
RgX_is_QX 399933
perm_conj 418299
FqX_Fq_mul 427297
FqX_extgcd 444662
Z_issquare 458714
nf_get_disc 463470
precdbl 475376
RgX_shift_inplace 479399
RgX_shift_inplace_init 479399
zv_to_ZV 502982
vecsmall_to_vec 511781
nf_get_sign 519552
mkvec3s 524441
gdivsg 531592
addmuliu 535753
FqX_Fp_mul 571437
prec2nbits_mul 581165
vecsmall_ei 584765
ZM_ZV_mod 596483
RgC_fpnorml2 619845
FqX_is_squarefree 683802
vecreverse 697277
mkrfrac 698439
coltrunc_init 740250
logint 754837
gcmpgs 761926
row 763882
rnf_get_nf 786086
ellff_get_a4a6 800025
zero_F2m_copy 845041
FpXX_renormalize 849917
zeropadic 855813
gmin_shallow 877681
affgr 898866
ZXQ_sqr 960431
cgetc 975459
Flx_lead 978539
polx_F2x 1078193
pr_norm 1090460
sstoQ 1097215
Fp_invsafe 1100353
Flx_mulu 1105321
vecsmall_max 1163973
mkfracss 1209563
RgV_isscalar 1210273
gen_I 1269711
RgX_is_monomial 1331422
mkoo 1331973
bnf_get_sunits 1367775
rnf_get_absdegree 1392746
bnr_get_nf 1399077
zero_Flx 1426883
guncloneNULL_deep 1430210
constant_coeff 1441128
Rg_col_ei 1450978
inf_get_sign 1453021
vecsmall_concat 1464207
nf_get_varn 1503560
bid_get_mod 1521922
F2m_flip 1553990
F2v_flip 1553990
F2x_flip 1553990
F2x_div 1570187
uutoQ 1600198
nf_get_roots 1628936
bnf_get_gen 1680311
vec_ei 1713843
ulogint 1715720
mkvecsmall5 1717502
gsubgs 1724821
nf_get_roundG 1748180
abgrp_get_gen 1765016
ellinf 1870038
modpr_get_p 1887627
killblock 1917649
get_F2x_degree 1928980
Flx_div 1997979
ellnf_get_nf 2027229
ellff_get_field 2036855
bnr_get_bid 2046092
ell_get_j 2126269
bid_get_MOD 2157250
bid_get_sprk 2157977
ZXQ_mul 2161279
zv_copy 2183751
bid_get_fact2 2201575
gc_slice 2204238
pol_xn 2249280
pari_realloc_ip 2254807
bid_get_archp 2397121
bid_get_fact 2498946
get_F2x_mod 2499167
rnf_get_degree 2506335
bnr_get_cyc 2522564
get_F2x_var 2533931
ell_get_b4 2550216
Flv_copy 2554995
mul_content 2657110
RgX_coeff 2669861
vecslicepermute 2691096
hash_str 2756815
cyc_get_expo 2757543
perm_inv 2781874
sqrtnr 2810094
zero_Flm 2829446
bnr_get_clgp 2830228
rnf_get_pol 2845192
znstar_get_pe 2869063
F2x_equal1 2873995
bnf_get_logfu 2874760
gisdouble 2995921
mkpolmod 3103727
Fq_red 3106206
bit_accuracy_mul 3175472
ZV_to_zv 3211408
identity_perm 3241521
F3m_coeff 3255867
identity_zv 3265871
znstar_get_conreygen 3290176
ell_get_b8 3297414
get_FpX_mod 3394358
vec_append 3465058
zero_F2v 3647667
bid_get_U 3680227
bnf_get_cyc 3686146
bnr_get_bnf 3710949
nf_get_index 3711371
pol_1 3755673
pol_x 3857018
ell_get_b6 3863115
mulsubii 3881093
pol1_F2x 3957098
vec_to_vecsmall 4036622
vecsmall_append 4099587
sqrfrac 4148316
vecsmall_copy 4403822
mkcol2s 4416244
F2x_equal 4661137
FpXQX_renormalize 4694253
mkmat 4750892
qfb_disc3 4995808
mkfraccopy 4999626
is_rational_t 5032464
bnf_get_clgp 5375002
nf_get_zkprimpart 5413995
nf_get_zkden 5459829
pari_stack_delete 5568240
FpX_div 5581161
checkell_i 5593164
isintm1 5710168
bid_get_cyc 5739822
bid_get_grp 5804673
col_ei 5924467
pari_stack_init 6051459
get_FpX_degree 6424297
Flm_copy 6433480
sqrti 6610166
get_FpX_var 6957828
RgX_div 7000642
vecsmall_lexcmp 7043237
ell_get_a2 7106182
ZM_lll 7117497
RgX_gtofp 7144863
znstar_get_faN 7331711
ell_get_b2 7371025
ZX_is_monic 7374311
zc_to_ZC 7824875
vecsmall_to_col 7839057
znstar_get_conreycyc 7979693
F2m_coeff 8038226
Q_abs 8062650
mkintmod 8092608
ZV_ZV_mod 8131478
RgM_gtofp 8257532
Flx_equal1 8329858
gc_INT_affii 8490729
ell_get_a4 8536723
Flm_row 8741250
ell_get_a3 8814046
ell_get_a1 8997078
cxtofp 9080064
veclast 9372705
ismpzero 9584474
is_intreal_t 9584580
const_col 9729711
RgM_dimensions 9741665
nf_get_invzk 9767249
bnf_get_nf 9865147
mkvec4 10093819
ser_isexactzero 10120284
ell_get_a6 10370961
mkcol 10639617
ZC_hnfrem 10697510
mul_denom 10707857
ell_get_c4 11017488
Fp_addmul 11232202
vectrunc_init 11766712
pr_get_gen 12071053
abgrp_get_cyc 12230817
F2x_clear 12353327
F2v_clear 12353331
ell_get_type 12498589
nbits2nlong 12747397
pol0_F2x 13242735
ell_get_c6 13473871
gmax_shallow 13510198
modpr_get_T 13867104
closure_get_frame 14158134
zeromatcopy 14249491
rowpermute 14705614
Fp_div 15034557
Fp_divu 15129013
mkvec5 15185689
vectrunc_append 15851127
pr_get_e 16161886
ell_get_disc 16814384
matslice 16819016
normalize_frac 17205567
pr_is_inert 17223880
isint1 17584780
Fp_center_i 17995407
cxcompotor 18211909
qfb_disc 18502552
mkvecsmall4 18654591
const_vecsmall 19705621
vecpermute 20550808
Fp_double 20792692
Flx_div_pre 21688106
nf_get_M 21745341
RgM_shallowcopy 22179165
RgX_is_ZX 22423163
gmulgs 22608389
Fp_inv 23440683
nf_get_r1 23465833
ZV_isscalar 23674532
get_Flx_mod 25593231
pr_get_f 26442864
RgX_equal_var 26883017
shallowcopy 27631692
mkqfb 27929750
zerovec 28453585
modpr_get_pr 31236548
Fp_neg 31478249
hash_str_len 31545000
submulii 31982591
RgV_is_ZV 32158272
mkmat2 33653889
RgC_gtofp 34028998
const_vec 34478116
zero_zv 36732288
polx_Flx 37484806
lincombii 38235654
znstar_get_N 38655073
mkfrac 41640034
zeropol 42353933
powii 43130365
is_vec_t 43951942
closure_is_variadic 44789866
absfrac 46638791
guncloneNULL 47926805
pr_get_tau 49768079
mkmat22 50279602
ell_is_inf 52399037
QV_isscalar 54416912
pol1_Flx 55050796
addmuliu_inplace 59632263
zero_Flv 59670289
submuliu_inplace 60123716
F2x_copy 60440237
gtodouble 60780257
is_real_t 62062467
qfb_is_qfi 62331595
Fp_sqr 63384452
Fp_mulu 65576827
get_Flx_var 68346915
mkvec 71088892
nf_get_degree 71370559
Fp_center 77117624
vecsmallpermute 78696483
rowslice 79313369
sqrtr 80371220
perm_mul 80891626
get_Flx_degree 81311521
Fp_red 82192504
pol_0 82996573
gtos 85855674
is_noncalc_t 85871206
cxnorm 91200030
mkcomplex 91615131
pr_get_p 92749754
dbllog2r 92815165
nf_get_pol 98108672
vecsmalltrunc_append 100854951
F2v_set 101402969
cgiv 102678714
RgX_copy 103406719
pol0_Flx 103473863
prec2nbits 103961888
mkvecsmall3 104172867
vecsmall_prefixcmp 108088071
gc_all 109637146
mkvec3 114975425
F2x_renormalize 115238683
zerocol 122327949
gaddgs 123248675
both_odd 123821567
F2x_set 124748519
nchar2nlong 127388141
mkvecsmall 131635525
equalim1 139505241
bit_prec 143245633
FpX_renormalize 144207505
ZX_renormalize 154971533
mkcol2 156863224
nbrows 157463052
leading_coeff 170260420
Flx_copy 173181068
Fp_add 180979579
mkvec2 185177937
nbits2prec 186125996
vecsmalltrunc_init 189662274
Fp_mul 200707054
Fp_sub 202382908
mkvecsmall2 234828328
gtofp 254290627
gc_GEN 255452081
gmulgu 282059385
lg_increase 316490318
closure_get_data 321562672
closure_get_oper 321582059
closure_codestr 321596809
is_universal_constant 325973817
lgcols 351594502
closure_arity 371463337
is_scalar_t 375657436
bin_copy 496053904
pari_free 509450853
is_bigint 563404261
leafcopy_avma 577100551
vecslice 655938671
is_matvec_t 659516520
F2v_coeff 661318430
F2x_coeff 667884267
pari_malloc 745350621
pari_stack_new 924960800
GENbinbase 961892858
pari_stack_alloc 1019650510
pari_stack_base 1025154757
gc_leaf 1132579504
equali1 1174354513
nbits2extraprec 1457829732
gc_upto 1953501937
odd 2088800387
is_pm1 2204392855
lgpol 2680427376
isintzero 2843738995
bit_accuracy 3159573546
gc_INT 4110891672
prec2lg 4468114646
is_const_t 4897023384
degpol 5476445733
remsBIL 8000208315
icopy_avma 8039814470
divsBIL 8090789854
isonstack 8267693836
is_recursive_t 9234475672

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