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: 2026-02-10 09:23:17 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 8038406
F2m_copy 200446
F2m_flip 1554062
F2m_set 798
F2v_clear 12353723
F2v_coeff 661318796
F2v_copy 4487
F2v_ei 42
F2v_flip 1554062
F2v_set 101403323
F2v_to_F2x 37869
F2xX_shift 0
F2x_clear 12353733
F2x_coeff 667837881
F2x_copy 60511600
F2x_div 1570345
F2x_equal 4665947
F2x_equal1 2874140
F2x_flip 1554062
F2x_renormalize 115354769
F2x_set 124740120
F2xqX_div 33173
F3m_coeff 3255917
F3m_copy 0
F3m_set 0
Flm_copy 6433720
Flm_row 8742197
Flv_copy 2555001
Flx_constant 333962
Flx_copy 173212311
Flx_div 1998042
Flx_div_pre 21687945
Flx_equal1 8330048
Flx_lead 978016
Flx_mulu 1105474
FlxqX_div 0
FlxqX_div_pre 165415
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694086
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849903
FpXY_Fq_evaly 20587
FpX_div 5581253
FpX_renormalize 144206007
Fp_add 181366579
Fp_addmul 11306482
Fp_center 77314213
Fp_center_i 18031345
Fp_div 15035805
Fp_divu 15130199
Fp_double 20992898
Fp_halve 247271
Fp_inv 23441751
Fp_invsafe 1100346
Fp_mul 200925336
Fp_muls 17780
Fp_mulu 69630518
Fp_neg 31476799
Fp_red 82189295
Fp_sqr 64376102
Fp_sub 203236522
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 571673
FqX_Fq_mul 427292
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 444768
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 367710
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 3106472
Fq_to_FpXQ 73652
GENbinbase 961790970
QV_isscalar 54415250
Q_abs 8062798
Q_abs_shallow 120239
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619858
RgC_gtofp 34033725
RgC_gtomp 574
RgM_dimensions 9741717
RgM_fpnorml2 22662
RgM_gtofp 8258118
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22178936
RgV_gtofp 56
RgV_is_QV 140732
RgV_is_ZV 32160177
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210272
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103403239
RgX_div 6997996
RgX_equal_var 26883016
RgX_fpnorml2 61600
RgX_gtofp 7145489
RgX_is_QX 399934
RgX_is_ZX 22423168
RgX_is_monomial 1331269
RgX_is_rational 68162
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479368
RgX_shift_inplace_init 479368
RgX_to_RgV 140
Rg_col_ei 1450966
Rg_to_Fq 756
ZC_hnfrem 10697324
ZM_ZV_mod 596628
ZM_hnfrem 363799
ZM_lll 7117762
ZV_ZV_mod 8131895
ZV_dvd 23485
ZV_isscalar 23674701
ZV_to_zv 3211716
ZXQ_mul 2161054
ZXQ_sqr 960345
ZX_equal1 12850
ZX_is_monic 7374260
ZX_renormalize 154999300
Z_ispower 98
Z_issquare 457633
abgrp_get_cyc 12230812
abgrp_get_gen 1765029
abgrp_get_no 354940
absfrac 46540193
absfrac_shallow 28237
addmuliu 535709
addmuliu_inplace 59642599
affc_fixlg 249623
affgr 899594
bid_get_MOD 2157241
bid_get_U 3680212
bid_get_arch 41188
bid_get_archp 2397114
bid_get_cyc 5739823
bid_get_fact 2498934
bid_get_fact2 2201569
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804672
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157960
bin_copy 496005306
bit_accuracy 3160127671
bit_accuracy_mul 3175484
bit_prec 143258343
bnf_get_clgp 5375009
bnf_get_cyc 3686151
bnf_get_fu 25859
bnf_get_fu_nocheck 289082
bnf_get_gen 1680315
bnf_get_logfu 2874757
bnf_get_nf 9865165
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367770
bnf_get_tuN 282994
bnf_get_tuU 303579
bnr_get_bid 2046087
bnr_get_bnf 3710939
bnr_get_clgp 2830238
bnr_get_cyc 2522569
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399082
bnr_get_no 277488
both_odd 124118117
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975458
cgiv 102684633
checkell_i 5593242
closure_arity 372300360
closure_codestr 321896119
closure_get_code 0
closure_get_data 321850003
closure_get_dbg 13635
closure_get_frame 14717240
closure_get_oper 321865574
closure_get_text 37079
closure_is_variadic 45906313
col_ei 5924598
coltrunc_init 740257
const_col 9729667
const_vec 34567406
const_vecsmall 19706666
constant_coeff 1441439
cxcompotor 18209897
cxnorm 91199259
cxtofp 9079033
cxtoreal 337205
cyc_get_expo 2757545
cyclic_perm 99911
dbllog2r 92816620
degpol 5505580872
div_content 58503
divsBIL 8093361110
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997085
ell_get_a2 7106177
ell_get_a3 8814053
ell_get_a4 8536718
ell_get_a6 10370956
ell_get_b2 7371038
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11018141
ell_get_c6 13474582
ell_get_disc 16815329
ell_get_j 2126269
ell_get_type 12498861
ell_is_inf 52340891
ellff_get_a4a6 800032
ellff_get_field 2036851
ellinf 1869963
ellnf_get_bnf 119
ellnf_get_nf 2027240
equali1 1174031841
equalim1 139505390
err_get_compo 294
err_get_num 62551
gaddgs 123248649
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 255457594
gc_INT 4112749664
gc_INT_affii 8491991
gc_all 109639162
gc_leaf 1140809845
gc_slice 2204319
gc_upto 1955300524
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 761925
gdivsg 531590
gen_I 1269721
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928921
get_F2x_mod 2499330
get_F2x_var 2533919
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 83259803
get_Flx_mod 25596942
get_Flx_var 68356827
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 6424367
get_FpX_mod 3394344
get_FpX_var 6957650
gisdouble 2996344
gmax_shallow 13510199
gmaxsg 0
gmin_shallow 877802
gminsg 0
gmulgs 22624759
gmulgu 283104681
gsubgs 1724799
gtodouble 60783632
gtofp 254354790
gtomp 22428
gtos 85855693
gtou 100706
guncloneNULL 48012439
guncloneNULL_deep 1496705
gval 6230
hash_str 2760615
hash_str_len 31631905
icopy_avma 8042172401
idealchineseinit 5427
idealred 138435
identity_ZV 8113
identity_perm 3242339
identity_zv 3266689
inf_get_sign 1452873
inv_content 0
is_bigint 563410306
is_const_t 4898779116
is_extscalar_t 6876
is_intreal_t 9584639
is_matvec_t 659204453
is_noncalc_t 85780620
is_pm1 2205935020
is_qfb_t 0
is_rational_t 5032632
is_real_t 62059885
is_recursive_t 9238596167
is_scalar_t 375680154
is_universal_constant 326635110
is_vec_t 43946614
isint1 17586366
isintm1 5710312
isintzero 2844978230
ismpzero 9584535
isonstack 8280482996
killblock 1952162
leading_coeff 170215633
leafcopy_avma 577527820
lg_increase 318631064
lgcols 351653601
lgpol 2693605536
lincombii 38228608
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 754831
matpascal 3983
matslice 16825529
mkcol 10639762
mkcol2 156913511
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33554
mkcols 40411
mkcomplex 91607639
mkerr 0
mkfrac 41646479
mkfraccopy 4999774
mkfracss 1209563
mkintmod 8070919
mkintmodu 1834
mkmat 4750890
mkmat2 33654100
mkmat22 50292506
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122281
mkmoo 108799
mkoo 1331820
mkpadic 2009
mkpolmod 3103716
mkqfb 27929823
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71287925
mkvec2 185557934
mkvec2copy 114529
mkvec2s 220252
mkvec3 120972976
mkvec3s 524441
mkvec4 10094854
mkvec4s 21
mkvec5 15185879
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131620733
mkvecsmall2 234966863
mkvecsmall3 104181179
mkvecsmall4 18671402
mkvecsmall5 1717498
modpr_get_T 13867128
modpr_get_p 1887627
modpr_get_pr 31236634
mul_content 2657105
mul_denom 10707472
mulsubii 3881391
nbits2extraprec 1458180422
nbits2ndec 228
nbits2nlong 12752370
nbits2prec 186141122
nbrows 157472794
nchar2nlong 127562503
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304832
nf_get_M 21745437
nf_get_Tr 22078
nf_get_degree 71368597
nf_get_diff 4445
nf_get_disc 463490
nf_get_index 3711420
nf_get_invzk 9767539
nf_get_pol 98106380
nf_get_r1 23465725
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628903
nf_get_roundG 1748138
nf_get_sign 519552
nf_get_varn 1503765
nf_get_zk 4382
nf_get_zkden 5459744
nf_get_zkprimpart 5413968
normalize_frac 17206184
odd 2090417790
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 509493710
pari_malloc 745439742
pari_realloc 1890
pari_realloc_ip 2350200
pari_stack_alloc 1021921921
pari_stack_base 1027727963
pari_stack_delete 5837578
pari_stack_init 6354421
pari_stack_new 926621812
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2782059
perm_mul 80921184
perm_sqr 728
pol0_F2x 13242807
pol0_Flx 103458697
pol1_F2x 3956830
pol1_Flx 55058063
pol_0 82787518
pol_1 3755795
pol_x 3857293
pol_xn 2249532
pol_xnall 294
polx_F2x 1078192
polx_Flx 37485054
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130299
pr_get_e 16161576
pr_get_f 26442882
pr_get_gen 12071112
pr_get_p 92749680
pr_get_tau 49768051
pr_is_inert 17223794
pr_norm 1090488
prec2lg 4468726435
prec2nbits 103962979
prec2nbits_mul 581163
prec2ndec 9778
precdbl 475396
qfb_disc 18502556
qfb_disc3 4995835
qfb_is_qfi 62331518
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8002069826
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 763902
row_i 987
rowcopy 204988
rowpermute 14706983
rowslice 79353477
rowslicepermute 185142
rowsplice 273
ser_isexactzero 10120326
shallowcopy 27631691
sqrfrac 4148138
sqrti 6610260
sqrtnr 2810171
sqrtr 80373393
sstoQ 1097313
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60135667
truecoef 0
trunc_safe 0
ulogint 1722775
upr_norm 346132
uutoQ 1602144
vec_append 3464685
vec_ei 1713865
vec_lengthen 18960
vec_prepend 314000
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036962
veclast 9372704
vecmodii 0
vecmoduu 49784
vecpermute 20551191
vecreverse 697305
vecreverse_inplace 2605
vecslice 656521936
vecslicepermute 2692299
vecsmall_append 4114674
vecsmall_coincidence 0
vecsmall_concat 1464247
vecsmall_copy 4403840
vecsmall_ei 584687
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1164149
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75642
vecsmall_to_col 7838991
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78725831
vecsmalltrunc_append 100867548
vecsmalltrunc_init 190495888
vecsplice 384928
vectrunc_append 15852740
vectrunc_append_batch 9667
vectrunc_init 11766726
zc_to_ZC 7824809
zero_F2m 0
zero_F2m_copy 845061
zero_F2v 3647766
zero_F2x 1350
zero_Flm 2830753
zero_Flm_copy 238235
zero_Flv 59674638
zero_Flx 1426991
zero_zm 0
zero_zv 36736309
zero_zx 0
zerocol 122337464
zeromat 109067
zeromatcopy 14250103
zeropadic 857458
zeropadic_shallow 17150
zeropol 42353407
zeroser 138943
zerovec 29292228
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 2183742
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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