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 30678-a23e500d22) Lines: 1420 1535 92.5 %
Date: 2026-02-15 09:22:35 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 8039929
F2m_copy 200435
F2m_flip 1554774
F2m_set 798
F2v_clear 12354884
F2v_coeff 661328417
F2v_copy 4487
F2v_ei 42
F2v_flip 1554774
F2v_set 101404702
F2v_to_F2x 38002
F2xX_shift 0
F2x_clear 12354879
F2x_coeff 667889312
F2x_copy 60475924
F2x_div 1572404
F2x_equal 4669589
F2x_equal1 2874180
F2x_flip 1554774
F2x_renormalize 115393140
F2x_set 124785711
F2xqX_div 33173
F3m_coeff 3255867
F3m_copy 0
F3m_set 0
Flm_copy 6433588
Flm_row 8742243
Flv_copy 2554977
Flx_constant 334014
Flx_copy 173186288
Flx_div 1997983
Flx_div_pre 21689243
Flx_equal1 8330009
Flx_lead 979099
Flx_mulu 1105449
FlxqX_div 0
FlxqX_div_pre 165409
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4693981
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849903
FpXY_Fq_evaly 20587
FpX_div 5581171
FpX_renormalize 144210600
Fp_add 180999839
Fp_addmul 11230302
Fp_center 77330357
Fp_center_i 18040768
Fp_div 15035676
Fp_divu 15130160
Fp_double 20800620
Fp_halve 247271
Fp_inv 23441669
Fp_invsafe 1100338
Fp_mul 200793652
Fp_muls 17780
Fp_mulu 67262718
Fp_neg 31478525
Fp_red 82197001
Fp_sqr 63602015
Fp_sub 202852188
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 571668
FqX_Fq_mul 427291
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38568
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444770
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 367711
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 3106454
Fq_to_FpXQ 73652
GENbinbase 961796165
QV_isscalar 54415953
Q_abs 8062688
Q_abs_shallow 120234
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619848
RgC_gtofp 34034126
RgC_gtomp 574
RgM_dimensions 9741846
RgM_fpnorml2 22662
RgM_gtofp 8258339
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179589
RgV_gtofp 56
RgV_is_QV 140733
RgV_is_ZV 32160181
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210271
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103403249
RgX_div 6997996
RgX_equal_var 26883016
RgX_fpnorml2 61601
RgX_gtofp 7145498
RgX_is_QX 399930
RgX_is_ZX 22423022
RgX_is_monomial 1331370
RgX_is_rational 68166
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479369
RgX_shift_inplace_init 479369
RgX_to_RgV 140
Rg_col_ei 1450983
Rg_to_Fq 756
ZC_hnfrem 10697297
ZM_ZV_mod 596649
ZM_hnfrem 363794
ZM_lll 7117995
ZV_ZV_mod 8131886
ZV_dvd 23485
ZV_isscalar 23675332
ZV_to_zv 3211716
ZXQ_mul 2161229
ZXQ_sqr 960442
ZX_equal1 12850
ZX_is_monic 7374278
ZX_renormalize 154992541
Z_ispower 98
Z_issquare 457643
abgrp_get_cyc 12230810
abgrp_get_gen 1765040
abgrp_get_no 354948
absfrac 46540066
absfrac_shallow 28237
addmuliu 535754
addmuliu_inplace 59650976
affc_fixlg 249620
affgr 899594
bid_get_MOD 2157242
bid_get_U 3680219
bid_get_arch 41188
bid_get_archp 2397115
bid_get_cyc 5739822
bid_get_fact 2498939
bid_get_fact2 2201565
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804675
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157971
bin_copy 496009084
bit_accuracy 3160408599
bit_accuracy_mul 3175484
bit_prec 143265011
bnf_get_clgp 5375033
bnf_get_cyc 3686160
bnf_get_fu 25859
bnf_get_fu_nocheck 289095
bnf_get_gen 1680326
bnf_get_logfu 2874766
bnf_get_nf 9865169
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367777
bnf_get_tuN 283002
bnf_get_tuU 303585
bnr_get_bid 2046087
bnr_get_bnf 3710945
bnr_get_clgp 2830242
bnr_get_cyc 2522568
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399084
bnr_get_no 277490
both_odd 124147548
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975460
cgiv 102681988
checkell_i 5593263
closure_arity 372716452
closure_codestr 322334108
closure_get_code 0
closure_get_data 322267763
closure_get_dbg 13635
closure_get_frame 14717049
closure_get_oper 322299808
closure_get_text 37079
closure_is_variadic 45905915
col_ei 5924624
coltrunc_init 740257
const_col 9729692
const_vec 34564220
const_vecsmall 19706702
constant_coeff 1441432
cxcompotor 18210240
cxnorm 91196198
cxtofp 9079201
cxtoreal 337207
cyc_get_expo 2757558
cyclic_perm 99911
dbllog2r 92818636
degpol 5490372919
div_content 58504
divsBIL 8093774897
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997074
ell_get_a2 7106182
ell_get_a3 8814042
ell_get_a4 8536723
ell_get_a6 10370961
ell_get_b2 7371023
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017802
ell_get_c6 13474283
ell_get_disc 16814718
ell_get_j 2126269
ell_get_type 12498852
ell_is_inf 52363616
ellff_get_a4a6 800023
ellff_get_field 2036852
ellinf 1869639
ellnf_get_bnf 119
ellnf_get_nf 2027243
equali1 1174023282
equalim1 139505381
err_get_compo 294
err_get_num 62550
gaddgs 123248640
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 255479662
gc_INT 4112859467
gc_INT_affii 8485473
gc_all 109640141
gc_leaf 1136756088
gc_slice 2204379
gc_upto 1955306603
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 761914
gdivsg 531591
gen_I 1269728
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1929051
get_F2x_mod 2499368
get_F2x_var 2534020
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82145469
get_Flx_mod 25593368
get_Flx_var 68349558
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 6424407
get_FpX_mod 3394339
get_FpX_var 6957833
gisdouble 2996616
gmax_shallow 13510199
gmaxsg 0
gmin_shallow 877779
gminsg 0
gmulgs 22623592
gmulgu 283104681
gsubgs 1724803
gtodouble 60785157
gtofp 254358435
gtomp 22428
gtos 85855660
gtou 100719
guncloneNULL 48009387
guncloneNULL_deep 1494032
gval 6230
hash_str 2762515
hash_str_len 31631802
icopy_avma 8042261180
idealchineseinit 5427
idealred 138445
identity_ZV 8113
identity_perm 3242436
identity_zv 3266786
inf_get_sign 1452921
inv_content 0
is_bigint 563402446
is_const_t 4898773250
is_extscalar_t 6876
is_intreal_t 9584702
is_matvec_t 659642900
is_noncalc_t 85781266
is_pm1 2204687640
is_qfb_t 0
is_rational_t 5032654
is_real_t 62059885
is_recursive_t 9237934749
is_scalar_t 375680272
is_universal_constant 326472902
is_vec_t 43949031
isint1 17586438
isintm1 5710365
isintzero 2845107452
ismpzero 9584600
isonstack 8277094733
killblock 1951475
leading_coeff 170212514
leafcopy_avma 577384164
lg_increase 319653858
lgcols 351656036
lgpol 2686759616
lincombii 38228529
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 754839
matpascal 3983
matslice 16825645
mkcol 10639694
mkcol2 156923104
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33560
mkcols 40411
mkcomplex 91607925
mkerr 0
mkfrac 41646695
mkfraccopy 4999890
mkfracss 1209563
mkintmod 8070697
mkintmodu 1834
mkmat 4750939
mkmat2 33654896
mkmat22 50293730
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122291
mkmoo 108791
mkoo 1331879
mkpadic 2009
mkpolmod 3103717
mkqfb 27930426
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71268166
mkvec2 185690987
mkvec2copy 114531
mkvec2s 220247
mkvec3 117652607
mkvec3s 524441
mkvec4 10094880
mkvec4s 21
mkvec5 15185841
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131620703
mkvecsmall2 234960559
mkvecsmall3 104180114
mkvecsmall4 18672712
mkvecsmall5 1717497
modpr_get_T 13867132
modpr_get_p 1887627
modpr_get_pr 31236623
mul_content 2657261
mul_denom 10707564
mulsubii 3881149
nbits2extraprec 1458332081
nbits2ndec 228
nbits2nlong 12754027
nbits2prec 186144139
nbrows 157473380
nchar2nlong 127562210
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304918
nf_get_M 21746088
nf_get_Tr 22084
nf_get_degree 71369642
nf_get_diff 4445
nf_get_disc 463482
nf_get_index 3711392
nf_get_invzk 9767397
nf_get_pol 98107987
nf_get_r1 23466512
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628996
nf_get_roundG 1748224
nf_get_sign 519553
nf_get_varn 1503755
nf_get_zk 4382
nf_get_zkden 5459826
nf_get_zkprimpart 5414050
normalize_frac 17206731
odd 2091043679
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 509490891
pari_malloc 745421362
pari_realloc 1890
pari_realloc_ip 2349848
pari_stack_alloc 1022382332
pari_stack_base 1028196138
pari_stack_delete 5841218
pari_stack_init 6354281
pari_stack_new 927101476
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2782059
perm_mul 80919053
perm_sqr 728
pol0_F2x 13247124
pol0_Flx 103459160
pol1_F2x 3957589
pol1_Flx 55052504
pol_0 82787601
pol_1 3755831
pol_x 3857349
pol_xn 2249513
pol_xnall 294
polx_F2x 1079255
polx_Flx 37486606
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130428
pr_get_e 16161993
pr_get_f 26443223
pr_get_gen 12071089
pr_get_p 92750867
pr_get_tau 49768658
pr_is_inert 17224088
pr_norm 1090565
prec2lg 4470158480
prec2nbits 103968789
prec2nbits_mul 581165
prec2ndec 9778
precdbl 475402
qfb_disc 18502488
qfb_disc3 4996178
qfb_is_qfi 62318272
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8003038292
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 763899
row_i 987
rowcopy 204988
rowpermute 14706880
rowslice 79351413
rowslicepermute 185001
rowsplice 273
ser_isexactzero 10120326
shallowcopy 27632334
sqrfrac 4148319
sqrti 6610299
sqrtnr 2810277
sqrtr 80377511
sstoQ 1097313
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60138680
truecoef 0
trunc_safe 0
ulogint 1725448
upr_norm 346135
uutoQ 1602144
vec_append 3464615
vec_ei 1713860
vec_lengthen 18960
vec_prepend 314006
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036919
veclast 9372720
vecmodii 0
vecmoduu 49784
vecpermute 20548621
vecreverse 697305
vecreverse_inplace 2605
vecslice 656614176
vecslicepermute 2691594
vecsmall_append 4114717
vecsmall_coincidence 0
vecsmall_concat 1464287
vecsmall_copy 4403882
vecsmall_ei 584717
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043242
vecsmall_max 1164209
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75643
vecsmall_to_col 7838593
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78723671
vecsmalltrunc_append 100880636
vecsmalltrunc_init 190771057
vecsplice 384925
vectrunc_append 15856442
vectrunc_append_batch 9667
vectrunc_init 11767355
zc_to_ZC 7824412
zero_F2m 0
zero_F2m_copy 845072
zero_F2v 3647829
zero_F2x 1350
zero_Flm 2830839
zero_Flm_copy 238234
zero_Flv 59678657
zero_Flx 1426709
zero_zm 0
zero_zv 36738440
zero_zx 0
zerocol 122337947
zeromat 109093
zeromatcopy 14250532
zeropadic 857566
zeropadic_shallow 17149
zeropol 42353474
zeroser 138943
zerovec 29292277
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 2183716
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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