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
F2m_coeff 8038226
F2m_copy 200477
F2m_flip 1553990
F2m_set 798
F2v_clear 12353331
F2v_coeff 661318430
F2v_copy 4487
F2v_ei 42
F2v_flip 1553990
F2v_set 101402969
F2v_to_F2x 37842
F2xX_shift 0
F2x_clear 12353327
F2x_coeff 667884267
F2x_copy 60440237
F2x_div 1570187
F2x_equal 4661137
F2x_equal1 2873995
F2x_flip 1553990
F2x_renormalize 115238683
F2x_set 124748519
F2xqX_div 33173
F3m_coeff 3255867
F3m_copy 0
F3m_set 0
Flm_copy 6433480
Flm_row 8741250
Flv_copy 2554995
Flx_constant 334012
Flx_copy 173181068
Flx_div 1997979
Flx_div_pre 21688106
Flx_equal1 8329858
Flx_lead 978539
Flx_mulu 1105321
FlxqX_div 0
FlxqX_div_pre 165414
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694253
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581161
FpX_renormalize 144207505
Fp_add 180979579
Fp_addmul 11232202
Fp_center 77117624
Fp_center_i 17995407
Fp_div 15034557
Fp_divu 15129013
Fp_double 20792692
Fp_halve 247271
Fp_inv 23440683
Fp_invsafe 1100353
Fp_mul 200707054
Fp_muls 17780
Fp_mulu 65576827
Fp_neg 31478249
Fp_red 82192504
Fp_sqr 63384452
Fp_sub 202382908
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 571437
FqX_Fq_mul 427297
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38569
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444662
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 367703
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 3106206
Fq_to_FpXQ 73652
GENbinbase 961892858
QV_isscalar 54416912
Q_abs 8062650
Q_abs_shallow 120223
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619845
RgC_gtofp 34028998
RgC_gtomp 574
RgM_dimensions 9741665
RgM_fpnorml2 22661
RgM_gtofp 8257532
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179165
RgV_gtofp 56
RgV_is_QV 140734
RgV_is_ZV 32158272
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210273
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406719
RgX_div 7000642
RgX_equal_var 26883017
RgX_fpnorml2 61495
RgX_gtofp 7144863
RgX_is_QX 399933
RgX_is_ZX 22423163
RgX_is_monomial 1331422
RgX_is_rational 68162
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479399
RgX_shift_inplace_init 479399
RgX_to_RgV 140
Rg_col_ei 1450978
Rg_to_Fq 756
ZC_hnfrem 10697510
ZM_ZV_mod 596483
ZM_hnfrem 363771
ZM_lll 7117497
ZV_ZV_mod 8131478
ZV_dvd 23485
ZV_isscalar 23674532
ZV_to_zv 3211408
ZXQ_mul 2161279
ZXQ_sqr 960431
ZX_equal1 12850
ZX_is_monic 7374311
ZX_renormalize 154971533
Z_ispower 98
Z_issquare 458714
abgrp_get_cyc 12230817
abgrp_get_gen 1765016
abgrp_get_no 354946
absfrac 46638791
absfrac_shallow 28237
addmuliu 535753
addmuliu_inplace 59632263
affc_fixlg 249623
affgr 898866
bid_get_MOD 2157250
bid_get_U 3680227
bid_get_arch 41188
bid_get_archp 2397121
bid_get_cyc 5739822
bid_get_fact 2498946
bid_get_fact2 2201575
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804673
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157977
bin_copy 496053904
bit_accuracy 3159573546
bit_accuracy_mul 3175472
bit_prec 143245633
bnf_get_clgp 5375002
bnf_get_cyc 3686146
bnf_get_fu 25858
bnf_get_fu_nocheck 289085
bnf_get_gen 1680311
bnf_get_logfu 2874760
bnf_get_nf 9865147
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367775
bnf_get_tuN 282999
bnf_get_tuU 303579
bnr_get_bid 2046092
bnr_get_bnf 3710949
bnr_get_clgp 2830228
bnr_get_cyc 2522564
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399077
bnr_get_no 277485
both_odd 123821567
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975459
cgiv 102678714
checkell_i 5593164
closure_arity 371463337
closure_codestr 321596809
closure_get_code 0
closure_get_data 321562672
closure_get_dbg 13628
closure_get_frame 14158134
closure_get_oper 321582059
closure_get_text 37065
closure_is_variadic 44789866
col_ei 5924467
coltrunc_init 740250
const_col 9729711
const_vec 34478116
const_vecsmall 19705621
constant_coeff 1441128
cxcompotor 18211909
cxnorm 91200030
cxtofp 9080064
cxtoreal 337207
cyc_get_expo 2757543
cyclic_perm 99911
dbllog2r 92815165
degpol 5476445733
div_content 58504
divsBIL 8090789854
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997078
ell_get_a2 7106182
ell_get_a3 8814046
ell_get_a4 8536723
ell_get_a6 10370961
ell_get_b2 7371025
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017488
ell_get_c6 13473871
ell_get_disc 16814384
ell_get_j 2126269
ell_get_type 12498589
ell_is_inf 52399037
ellff_get_a4a6 800025
ellff_get_field 2036855
ellinf 1870038
ellnf_get_bnf 119
ellnf_get_nf 2027229
equali1 1174354513
equalim1 139505241
err_get_compo 294
err_get_num 62537
gaddgs 123248675
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 255452081
gc_INT 4110891672
gc_INT_affii 8490729
gc_all 109637146
gc_leaf 1132579504
gc_slice 2204238
gc_upto 1953501937
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 761926
gdivsg 531592
gen_I 1269711
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928980
get_F2x_mod 2499167
get_F2x_var 2533931
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 81311521
get_Flx_mod 25593231
get_Flx_var 68346915
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 6424297
get_FpX_mod 3394358
get_FpX_var 6957828
gisdouble 2995921
gmax_shallow 13510198
gmaxsg 0
gmin_shallow 877681
gminsg 0
gmulgs 22608389
gmulgu 282059385
gsubgs 1724821
gtodouble 60780257
gtofp 254290627
gtomp 22428
gtos 85855674
gtou 99542
guncloneNULL 47926805
guncloneNULL_deep 1430210
gval 6230
hash_str 2756815
hash_str_len 31545000
icopy_avma 8039814470
idealchineseinit 5427
idealred 138440
identity_ZV 8113
identity_perm 3241521
identity_zv 3265871
inf_get_sign 1453021
inv_content 0
is_bigint 563404261
is_const_t 4897023384
is_extscalar_t 6876
is_intreal_t 9584580
is_matvec_t 659516520
is_noncalc_t 85871206
is_pm1 2204392855
is_qfb_t 0
is_rational_t 5032464
is_real_t 62062467
is_recursive_t 9234475672
is_scalar_t 375657436
is_universal_constant 325973817
is_vec_t 43951942
isint1 17584780
isintm1 5710168
isintzero 2843738995
ismpzero 9584474
isonstack 8267693836
killblock 1917649
leading_coeff 170260420
leafcopy_avma 577100551
lg_increase 316490318
lgcols 351594502
lgpol 2680427376
lincombii 38235654
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 16819016
mkcol 10639617
mkcol2 156863224
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33548
mkcols 40411
mkcomplex 91615131
mkerr 0
mkfrac 41640034
mkfraccopy 4999626
mkfracss 1209563
mkintmod 8092608
mkintmodu 1813
mkmat 4750892
mkmat2 33653889
mkmat22 50279602
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122276
mkmoo 108791
mkoo 1331973
mkpadic 2009
mkpolmod 3103727
mkqfb 27929750
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71088892
mkvec2 185177937
mkvec2copy 114528
mkvec2s 220248
mkvec3 114975425
mkvec3s 524441
mkvec4 10093819
mkvec4s 21
mkvec5 15185689
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131635525
mkvecsmall2 234828328
mkvecsmall3 104172867
mkvecsmall4 18654591
mkvecsmall5 1717502
modpr_get_T 13867104
modpr_get_p 1887627
modpr_get_pr 31236548
mul_content 2657110
mul_denom 10707857
mulsubii 3881093
nbits2extraprec 1457829732
nbits2ndec 228
nbits2nlong 12747397
nbits2prec 186125996
nbrows 157463052
nchar2nlong 127388141
ndec2nbits 8270
ndec2nlong 41549
ndec2prec 33279
nfV_to_scalar_or_alg 26300
nf_get_G 304870
nf_get_M 21745341
nf_get_Tr 22083
nf_get_degree 71370559
nf_get_diff 4445
nf_get_disc 463470
nf_get_index 3711371
nf_get_invzk 9767249
nf_get_pol 98108672
nf_get_r1 23465833
nf_get_r2 4154
nf_get_ramified_primes 64643
nf_get_roots 1628936
nf_get_roundG 1748180
nf_get_sign 519552
nf_get_varn 1503560
nf_get_zk 4382
nf_get_zkden 5459829
nf_get_zkprimpart 5413995
normalize_frac 17205567
odd 2088800387
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 509450853
pari_malloc 745350621
pari_realloc 1890
pari_realloc_ip 2254807
pari_stack_alloc 1019650510
pari_stack_base 1025154757
pari_stack_delete 5568240
pari_stack_init 6051459
pari_stack_new 924960800
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781874
perm_mul 80891626
perm_sqr 728
pol0_F2x 13242735
pol0_Flx 103473863
pol1_F2x 3957098
pol1_Flx 55050796
pol_0 82996573
pol_1 3755673
pol_x 3857018
pol_xn 2249280
pol_xnall 294
polx_F2x 1078193
polx_Flx 37484806
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130365
pr_get_e 16161886
pr_get_f 26442864
pr_get_gen 12071053
pr_get_p 92749754
pr_get_tau 49768079
pr_is_inert 17223880
pr_norm 1090460
prec2lg 4468114646
prec2nbits 103961888
prec2nbits_mul 581165
prec2ndec 9778
precdbl 475376
qfb_disc 18502552
qfb_disc3 4995808
qfb_is_qfi 62331595
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8000208315
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 763882
row_i 987
rowcopy 204988
rowpermute 14705614
rowslice 79313369
rowslicepermute 185275
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27631692
sqrfrac 4148316
sqrti 6610166
sqrtnr 2810094
sqrtr 80371220
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60123716
truecoef 0
trunc_safe 0
ulogint 1715720
upr_norm 346131
uutoQ 1600198
vec_append 3465058
vec_ei 1713843
vec_lengthen 18960
vec_prepend 314004
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036622
veclast 9372705
vecmodii 0
vecmoduu 49784
vecpermute 20550808
vecreverse 697277
vecreverse_inplace 2605
vecslice 655938671
vecslicepermute 2691096
vecsmall_append 4099587
vecsmall_coincidence 0
vecsmall_concat 1464207
vecsmall_copy 4403822
vecsmall_ei 584765
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043237
vecsmall_max 1163973
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75638
vecsmall_to_col 7839057
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78696483
vecsmalltrunc_append 100854951
vecsmalltrunc_init 189662274
vecsplice 384916
vectrunc_append 15851127
vectrunc_append_batch 9667
vectrunc_init 11766712
zc_to_ZC 7824875
zero_F2m 0
zero_F2m_copy 845041
zero_F2v 3647667
zero_F2x 1350
zero_Flm 2829446
zero_Flm_copy 238224
zero_Flv 59670289
zero_Flx 1426883
zero_zm 0
zero_zv 36732288
zero_zx 0
zerocol 122327949
zeromat 109099
zeromatcopy 14249491
zeropadic 855813
zeropadic_shallow 17023
zeropol 42353933
zeroser 138908
zerovec 28453585
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 2183751
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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