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 30616-7aa4fb0184) Lines: 1420 1535 92.5 %
Date: 2026-01-18 09:22:29 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 8038422
F2m_copy 200438
F2m_flip 1554078
F2m_set 798
F2v_clear 12353496
F2v_coeff 661319342
F2v_copy 4487
F2v_ei 42
F2v_flip 1554078
F2v_set 101403232
F2v_to_F2x 37906
F2xX_shift 0
F2x_clear 12353484
F2x_coeff 667881542
F2x_copy 60463218
F2x_div 1571059
F2x_equal 4663956
F2x_equal1 2874136
F2x_flip 1554078
F2x_renormalize 115222362
F2x_set 124739286
F2xqX_div 33173
F3m_coeff 3255917
F3m_copy 0
F3m_set 0
Flm_copy 6433425
Flm_row 8741367
Flv_copy 2555008
Flx_constant 334025
Flx_copy 173138604
Flx_div 1997944
Flx_div_pre 21684294
Flx_equal1 8329941
Flx_lead 979226
Flx_mulu 1105464
FlxqX_div 0
FlxqX_div_pre 165415
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694006
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581205
FpX_renormalize 144197794
Fp_add 181111193
Fp_addmul 11268726
Fp_center 77187874
Fp_center_i 18029226
Fp_div 15035230
Fp_divu 15129681
Fp_double 20928308
Fp_halve 247271
Fp_inv 23440305
Fp_invsafe 1100357
Fp_mul 200795931
Fp_muls 17780
Fp_mulu 67598088
Fp_neg 31479035
Fp_red 82195658
Fp_sqr 63829123
Fp_sub 203289577
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 571449
FqX_Fq_mul 427296
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38567
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444667
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 367704
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 3106320
Fq_to_FpXQ 73652
GENbinbase 961887296
QV_isscalar 54415317
Q_abs 8062628
Q_abs_shallow 120221
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619844
RgC_gtofp 34029669
RgC_gtomp 574
RgM_dimensions 9741568
RgM_fpnorml2 22661
RgM_gtofp 8257866
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179178
RgV_gtofp 56
RgV_is_QV 140734
RgV_is_ZV 32158283
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210271
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406687
RgX_div 7000642
RgX_equal_var 26883005
RgX_fpnorml2 61496
RgX_gtofp 7144886
RgX_is_QX 399932
RgX_is_ZX 22423311
RgX_is_monomial 1331334
RgX_is_rational 68165
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479366
RgX_shift_inplace_init 479366
RgX_to_RgV 140
Rg_col_ei 1450958
Rg_to_Fq 756
ZC_hnfrem 10697129
ZM_ZV_mod 596449
ZM_hnfrem 363791
ZM_lll 7117678
ZV_ZV_mod 8131338
ZV_dvd 23485
ZV_isscalar 23674520
ZV_to_zv 3211405
ZXQ_mul 2161260
ZXQ_sqr 960440
ZX_equal1 12850
ZX_is_monic 7374320
ZX_renormalize 154932465
Z_ispower 98
Z_issquare 458713
abgrp_get_cyc 12230758
abgrp_get_gen 1765028
abgrp_get_no 354947
absfrac 46638687
absfrac_shallow 28237
addmuliu 535753
addmuliu_inplace 59712177
affc_fixlg 249618
affgr 898901
bid_get_MOD 2157267
bid_get_U 3680246
bid_get_arch 41187
bid_get_archp 2397101
bid_get_cyc 5739805
bid_get_fact 2498927
bid_get_fact2 2201585
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804655
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2158000
bin_copy 496046759
bit_accuracy 3159325056
bit_accuracy_mul 3175484
bit_prec 143231807
bnf_get_clgp 5374993
bnf_get_cyc 3686143
bnf_get_fu 25859
bnf_get_fu_nocheck 289082
bnf_get_gen 1680312
bnf_get_logfu 2874753
bnf_get_nf 9865153
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367773
bnf_get_tuN 282997
bnf_get_tuU 303581
bnr_get_bid 2046099
bnr_get_bnf 3710945
bnr_get_clgp 2830227
bnr_get_cyc 2522549
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399075
bnr_get_no 277489
both_odd 124023143
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975459
cgiv 102673913
checkell_i 5593245
closure_arity 371577464
closure_codestr 321711617
closure_get_code 0
closure_get_data 321669908
closure_get_dbg 13628
closure_get_frame 14158272
closure_get_oper 321691932
closure_get_text 37065
closure_is_variadic 44790726
col_ei 5924503
coltrunc_init 740250
const_col 9729692
const_vec 34475045
const_vecsmall 19706125
constant_coeff 1441152
cxcompotor 18209994
cxnorm 91194242
cxtofp 9079139
cxtoreal 337206
cyc_get_expo 2757562
cyclic_perm 99911
dbllog2r 92816546
degpol 5486906066
div_content 58503
divsBIL 8088383986
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997084
ell_get_a2 7106182
ell_get_a3 8814052
ell_get_a4 8536723
ell_get_a6 10370961
ell_get_b2 7371032
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11018111
ell_get_c6 13474543
ell_get_disc 16815350
ell_get_j 2126269
ell_get_type 12498905
ell_is_inf 52332215
ellff_get_a4a6 800030
ellff_get_field 2036859
ellinf 1869784
ellnf_get_bnf 119
ellnf_get_nf 2027237
equali1 1174327065
equalim1 139505336
err_get_compo 294
err_get_num 62537
gaddgs 123248609
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 255514251
gc_INT 4109875906
gc_INT_affii 8484518
gc_all 109637054
gc_leaf 1136196377
gc_slice 2204082
gc_upto 1953333639
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 761929
gdivsg 531589
gen_I 1269724
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928993
get_F2x_mod 2499347
get_F2x_var 2533969
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82260349
get_Flx_mod 25590645
get_Flx_var 68342919
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 6424303
get_FpX_mod 3394363
get_FpX_var 6957500
gisdouble 2995796
gmax_shallow 13510200
gmaxsg 0
gmin_shallow 877655
gminsg 0
gmulgs 22557796
gmulgu 282059384
gsubgs 1724803
gtodouble 60779241
gtofp 254305572
gtomp 22428
gtos 85855687
gtou 99542
guncloneNULL 47934322
guncloneNULL_deep 1437072
gval 6230
hash_str 2756815
hash_str_len 31544958
icopy_avma 8039436194
idealchineseinit 5427
idealred 138441
identity_ZV 8113
identity_perm 3241226
identity_zv 3265576
inf_get_sign 1452917
inv_content 0
is_bigint 563352110
is_const_t 4894791765
is_extscalar_t 6876
is_intreal_t 9584616
is_matvec_t 659722235
is_noncalc_t 85871280
is_pm1 2205102795
is_qfb_t 0
is_rational_t 5032526
is_real_t 62062468
is_recursive_t 9234954576
is_scalar_t 375657393
is_universal_constant 325865492
is_vec_t 43950179
isint1 17584807
isintm1 5710175
isintzero 2842898579
ismpzero 9584514
isonstack 8270232771
killblock 1920312
leading_coeff 170258183
leafcopy_avma 576915400
lg_increase 317168157
lgcols 351582469
lgpol 2683696247
lincombii 38218350
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 754835
matpascal 3983
matslice 16817944
mkcol 10639606
mkcol2 156892420
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33555
mkcols 40411
mkcomplex 91602842
mkerr 0
mkfrac 41636200
mkfraccopy 4999630
mkfracss 1209563
mkintmod 8092607
mkintmodu 1813
mkmat 4750836
mkmat2 33654027
mkmat22 50282219
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122263
mkmoo 108795
mkoo 1331867
mkpadic 2009
mkpolmod 3103725
mkqfb 27929925
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71108247
mkvec2 185329256
mkvec2copy 114530
mkvec2s 220242
mkvec3 117831238
mkvec3s 524441
mkvec4 10093795
mkvec4s 21
mkvec5 15185676
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131626215
mkvecsmall2 234815675
mkvecsmall3 104166665
mkvecsmall4 18653649
mkvecsmall5 1717505
modpr_get_T 13867176
modpr_get_p 1887627
modpr_get_pr 31236669
mul_content 2657108
mul_denom 10707608
mulsubii 3881189
nbits2extraprec 1457472367
nbits2ndec 228
nbits2nlong 12746954
nbits2prec 186114431
nbrows 157458221
nchar2nlong 127389255
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304859
nf_get_M 21745315
nf_get_Tr 22083
nf_get_degree 71368543
nf_get_diff 4445
nf_get_disc 463474
nf_get_index 3711374
nf_get_invzk 9767533
nf_get_pol 98105922
nf_get_r1 23465713
nf_get_r2 4154
nf_get_ramified_primes 64640
nf_get_roots 1628921
nf_get_roundG 1748169
nf_get_sign 519553
nf_get_varn 1503751
nf_get_zk 4382
nf_get_zkden 5459860
nf_get_zkprimpart 5414043
normalize_frac 17205519
odd 2090403910
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 509454553
pari_malloc 745337533
pari_realloc 1890
pari_realloc_ip 2257251
pari_stack_alloc 1019805899
pari_stack_base 1025400704
pari_stack_delete 5597194
pari_stack_init 6052295
pari_stack_new 925152793
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781881
perm_mul 80893660
perm_sqr 728
pol0_F2x 13245573
pol0_Flx 103462248
pol1_F2x 3957471
pol1_Flx 55047722
pol_0 82996614
pol_1 3755697
pol_x 3857038
pol_xn 2249292
pol_xnall 294
polx_F2x 1078647
polx_Flx 37480125
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130337
pr_get_e 16161891
pr_get_f 26443017
pr_get_gen 12070870
pr_get_p 92750259
pr_get_tau 49768058
pr_is_inert 17223906
pr_norm 1090502
prec2lg 4469028077
prec2nbits 103960249
prec2nbits_mul 581167
prec2ndec 9778
precdbl 475372
qfb_disc 18502550
qfb_disc3 4995897
qfb_is_qfi 62321755
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 7997435883
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 763884
row_i 987
rowcopy 204988
rowpermute 14705018
rowslice 79323669
rowslicepermute 184965
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27630878
sqrfrac 4148211
sqrti 6610166
sqrtnr 2810113
sqrtr 80367104
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60195830
truecoef 0
trunc_safe 0
ulogint 1732629
upr_norm 346133
uutoQ 1600198
vec_append 3465069
vec_ei 1713844
vec_lengthen 18960
vec_prepend 314004
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036608
veclast 9372703
vecmodii 0
vecmoduu 49784
vecpermute 20546185
vecreverse 697277
vecreverse_inplace 2605
vecslice 656160344
vecslicepermute 2689768
vecsmall_append 4099597
vecsmall_coincidence 0
vecsmall_concat 1464220
vecsmall_copy 4403828
vecsmall_ei 584716
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1164128
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75640
vecsmall_to_col 7838500
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78698252
vecsmalltrunc_append 100813794
vecsmalltrunc_init 189974840
vecsplice 384920
vectrunc_append 15850615
vectrunc_append_batch 9667
vectrunc_init 11768036
zc_to_ZC 7824318
zero_F2m 0
zero_F2m_copy 845033
zero_F2v 3647669
zero_F2x 1350
zero_Flm 2829171
zero_Flm_copy 238234
zero_Flv 59670188
zero_Flx 1426663
zero_zm 0
zero_zv 36732648
zero_zx 0
zerocol 122328096
zeromat 109086
zeromatcopy 14249799
zeropadic 855303
zeropadic_shallow 17024
zeropol 42354022
zeroser 138908
zerovec 28453498
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 2183749
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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