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 30480-572da319a6) Lines: 1422 1532 92.8 %
Date: 2025-08-27 09:24:05 Functions: 648 704 92.0 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
F2m_clear 0
F2m_coeff 8039585
F2m_copy 200506
F2m_flip 1554381
F2m_set 798
F2v_clear 12356055
F2v_coeff 661331842
F2v_copy 4487
F2v_ei 42
F2v_flip 1554381
F2v_set 101404831
F2v_to_F2x 37912
F2xX_shift 0
F2x_clear 12356046
F2x_coeff 667944715
F2x_copy 60452999
F2x_div 1571975
F2x_equal 4664243
F2x_equal1 2873905
F2x_flip 1554381
F2x_renormalize 115213745
F2x_set 124758643
F2xqX_div 33173
F3m_coeff 3256661
F3m_copy 0
F3m_set 0
Flm_copy 6431496
Flm_row 8742456
Flv_copy 2555455
Flx_constant 330252
Flx_copy 173790105
Flx_div 1999015
Flx_div_pre 21703713
Flx_equal1 8327196
Flx_lead 979458
Flx_mulu 1105201
FlxqX_div 0
FlxqX_div_pre 165417
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4693720
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849896
FpXY_Fq_evaly 20587
FpX_div 5578781
FpX_renormalize 144576574
Fp_add 181545027
Fp_addmul 11356078
Fp_center 77214252
Fp_center_i 18055473
Fp_div 15035233
Fp_divu 15135044
Fp_double 22188952
Fp_halve 247348
Fp_inv 23399353
Fp_invsafe 1100359
Fp_mul 201048743
Fp_muls 17780
Fp_mulu 65283847
Fp_neg 30884647
Fp_red 82080401
Fp_sqr 64554549
Fp_sub 203447586
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 572114
FqX_Fq_mul 427303
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38548
FqX_div_by_X_x 69629
FqX_divrem 0
FqX_extgcd 445051
FqX_factor 141051
FqX_factor_squarefree 7
FqX_gcd 8246
FqX_get_red 6090
FqX_halfgcd 0
FqX_halve 19411
FqX_integ 0
FqX_is_squarefree 683802
FqX_mul 367816
FqX_mulu 21942
FqX_neg 24956
FqX_normalize 4123
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 3106484
Fq_to_FpXQ 73792
GENbinbase 964118433
QV_isscalar 54380234
Q_abs 8062663
Q_abs_shallow 120242
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 622073
RgC_gtofp 34008221
RgC_gtomp 574
RgM_dimensions 9741992
RgM_fpnorml2 22781
RgM_gtofp 8251920
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22161556
RgV_gtofp 56
RgV_is_QV 140756
RgV_is_ZV 32159676
RgV_isin 110130
RgV_isin_i 110130
RgV_isscalar 1208180
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669140
RgX_copy 103402317
RgX_div 7000740
RgX_equal_var 26880631
RgX_fpnorml2 61606
RgX_gtofp 7147382
RgX_is_QX 400117
RgX_is_ZX 22417544
RgX_is_monomial 1331214
RgX_is_rational 68306
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479366
RgX_shift_inplace_init 479366
RgX_to_RgV 140
Rg_col_ei 1451256
Rg_to_Fq 756
ZC_hnfrem 10682276
ZM_ZV_mod 596582
ZM_hnfrem 363830
ZM_lll 7110100
ZV_ZV_mod 8129079
ZV_dvd 23485
ZV_isscalar 23092473
ZV_to_zv 3206095
ZXQ_mul 2162067
ZXQ_sqr 961079
ZX_equal1 12711
ZX_is_monic 7375993
ZX_renormalize 155020430
Z_ispower 98
Z_issquare 458921
abgrp_get_cyc 12225946
abgrp_get_gen 1762896
abgrp_get_no 355173
absfrac 46628012
absfrac_shallow 28237
addmuliu 541128
addmuliu_inplace 59760451
affc_fixlg 249594
affgr 898719
bid_get_MOD 2157268
bid_get_U 3680248
bid_get_arch 41188
bid_get_archp 2397144
bid_get_cyc 5739608
bid_get_fact 2498952
bid_get_fact2 2201589
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804461
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2158001
bin_copy 497207422
bit_accuracy 3163620603
bit_accuracy_mul 3175421
bit_prec 142990751
bnf_get_clgp 5368447
bnf_get_cyc 3681736
bnf_get_fu 25852
bnf_get_fu_nocheck 289074
bnf_get_gen 1678190
bnf_get_logfu 2872612
bnf_get_nf 9852796
bnf_get_no 8358
bnf_get_reg 648
bnf_get_sunits 1365642
bnf_get_tuN 282994
bnf_get_tuU 303564
bnr_get_bid 2045870
bnr_get_bnf 3750910
bnr_get_clgp 2830021
bnr_get_cyc 2522345
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1368114
bnr_get_no 277497
both_odd 123938302
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 973496
cgiv 102099036
checkell_i 5593249
closure_arity 371578091
closure_codestr 321753048
closure_get_code 0
closure_get_data 321694231
closure_get_dbg 13621
closure_get_frame 14145014
closure_get_oper 321720190
closure_get_text 37051
closure_is_variadic 40152599
col_ei 5923674
coltrunc_init 740250
const_col 9729732
const_vec 34466020
const_vecsmall 19660909
constant_coeff 1441506
cxcompotor 18208581
cxnorm 90892735
cxtofp 9078475
cxtoreal 337179
cyc_get_expo 2755558
cyclic_perm 99911
dbllog2r 93991031
degpol 5488211246
div_content 58476
divsBIL 8171572305
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8996368
ell_get_a2 7105474
ell_get_a3 8813336
ell_get_a4 8536015
ell_get_a6 10370253
ell_get_b2 7369841
ell_get_b4 2549033
ell_get_b6 3861932
ell_get_b8 3297414
ell_get_c4 10728567
ell_get_c6 12891931
ell_get_disc 16525447
ell_get_j 2126227
ell_get_type 12499144
ell_is_inf 52473142
ellff_get_a4a6 800028
ellff_get_field 2036869
ellinf 1868505
ellnf_get_bnf 126
ellnf_get_nf 2027613
equali1 1175053100
equalim1 139504174
err_get_compo 294
err_get_num 62529
gaddgs 123247471
gal_get_den 27874
gal_get_e 91
gal_get_gen 15449
gal_get_group 80393
gal_get_invvdm 27881
gal_get_mod 23772
gal_get_orders 6678
gal_get_p 6020
gal_get_pol 36337
gal_get_roots 32753
gc_GEN 256114417
gc_INT 4103149249
gc_INT_affii 8485238
gc_all 109981997
gc_leaf 1128726059
gc_slice 2204876
gc_upto 1949431596
gchar_copy_precs 1202
gchar_get_DLdata 188468
gchar_get_S 36865
gchar_get_U 0
gchar_get_Ui 10969
gchar_get_basis 32639
gchar_get_bnf 203105
gchar_get_cyc 16168
gchar_get_evalprec 4011
gchar_get_hnf 0
gchar_get_loccyc 50347
gchar_get_m0 3321
gchar_get_mod 8225
gchar_get_modP 4095
gchar_get_nalg 2042
gchar_get_nc 37131
gchar_get_nf 241501
gchar_get_nfprec 13419
gchar_get_nfree 322
gchar_get_nm 1841
gchar_get_ns 36865
gchar_get_ntors 322
gchar_get_prec 18732
gchar_get_r1 17416
gchar_get_r2 623
gchar_get_sfu 1748
gchar_get_u0 4267
gchar_get_zm 279434
gchar_set_HUUi 623
gchar_set_basis 1573
gchar_set_cyc 1573
gchar_set_evalprec 1785
gchar_set_m0 950
gchar_set_nalg 623
gchar_set_nf 2077
gchar_set_nfprec 2950
gchar_set_nfree 623
gchar_set_ntors 623
gchar_set_prec 1202
gchar_set_u0 2093
gcmpgs 761920
gdivsg 529207
gen_I 1269700
gener_Fq_local 29932
gequalgs 29176
get_F2x_degree 1929102
get_F2x_mod 2499153
get_F2x_var 2534202
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 81302972
get_Flx_mod 25601796
get_Flx_var 68361181
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 6424580
get_FpX_mod 3394347
get_FpX_var 6957954
gisdouble 2987336
gmax_shallow 13510219
gmaxsg 0
gmin_shallow 876326
gminsg 0
gmulgs 22443079
gmulgu 282058132
gsubgs 1727466
gtodouble 60766816
gtofp 254204451
gtomp 22428
gtos 85833168
gtou 104259
guncloneNULL 48153024
guncloneNULL_deep 1385310
gval 5824
hash_str 2753015
hash_str_len 31539802
icopy_avma 8034591331
idealchineseinit 5427
idealred 138515
identity_ZV 8113
identity_perm 3242395
identity_zv 3266745
inf_get_sign 1453046
inv_content 0
is_bigint 562515223
is_const_t 4890183783
is_extscalar_t 6876
is_intreal_t 9575327
is_matvec_t 660180822
is_noncalc_t 85858998
is_pm1 2200327744
is_qfb_t 0
is_rational_t 5035095
is_real_t 62657876
is_recursive_t 9245173486
is_scalar_t 375639656
is_universal_constant 325954203
is_vec_t 43960549
isint1 17571640
isintm1 5704031
isintzero 2837912462
ismpzero 9575219
isonstack 8251121386
killblock 1900974
leading_coeff 170556106
leafcopy_avma 577215357
lg_increase 315103845
lgcols 350174597
lgpol 2675931047
lincombii 38193351
locs_get_Lgenfil 1260
locs_get_Lsprk 191695
locs_get_cyc 51955
locs_get_famod 1260
locs_get_m_infty 207235
locs_get_mod 8225
logint 752806
matpascal 3885
matslice 16817147
mkcol 10635382
mkcol2 156863524
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232589
mkcolcopy 33500
mkcols 40411
mkcomplex 91624506
mkerr 0
mkfrac 41622265
mkfraccopy 4999636
mkfracss 1209563
mkintmod 8092488
mkintmodu 1813
mkmat 4748682
mkmat2 33649216
mkmat22 50267664
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122248
mkmoo 108831
mkoo 1331957
mkpadic 2009
mkpolmod 3105014
mkqfb 28079496
mkquad 69118
mkrfrac 698152
mkrfraccopy 14
mkvec 71147395
mkvec2 184458690
mkvec2copy 114562
mkvec2s 220412
mkvec3 114948201
mkvec3s 524441
mkvec4 10105787
mkvec4s 21
mkvec5 15182596
mkveccopy 122521
mkvecs 168
mkvecsmall 131678911
mkvecsmall2 233669632
mkvecsmall3 104070885
mkvecsmall4 17834921
mkvecsmall5 1730629
modpr_get_T 13865335
modpr_get_p 1888432
modpr_get_pr 31231262
mul_content 2652032
mul_denom 10707796
mulsubii 3881991
nbits2extraprec 1498246930
nbits2ndec 228
nbits2nlong 12650303
nbits2prec 187583364
nbrows 157435791
nchar2nlong 127372802
ndec2nbits 8270
ndec2nlong 41430
ndec2prec 33160
nfV_to_scalar_or_alg 26292
nf_get_G 303594
nf_get_M 21161944
nf_get_Tr 22084
nf_get_degree 71322095
nf_get_diff 4438
nf_get_disc 463824
nf_get_index 3709014
nf_get_invzk 9761105
nf_get_pol 98019527
nf_get_r1 22884505
nf_get_r2 4140
nf_get_ramified_primes 64813
nf_get_roots 1625518
nf_get_roundG 1744512
nf_get_sign 517290
nf_get_varn 1503567
nf_get_zk 4382
nf_get_zkden 5459970
nf_get_zkprimpart 5414095
normalize_frac 17205171
odd 2084590600
pari_calloc 47650
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 84
pari_err_DIM 718
pari_err_DOMAIN 2841
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 238
pari_err_ROOTS0 63
pari_err_SQRTN 7084
pari_err_TYPE 15398
pari_err_TYPE2 3493
pari_err_VAR 371
pari_free 510525429
pari_malloc 746462873
pari_realloc 1890
pari_realloc_ip 2179888
pari_stack_alloc 1019636138
pari_stack_base 1025000107
pari_stack_delete 5392909
pari_stack_init 5834281
pari_stack_new 925023937
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2782845
perm_mul 80928844
perm_sqr 728
pol0_F2x 13248736
pol0_Flx 103513682
pol1_F2x 3958136
pol1_Flx 55060050
pol_0 82998101
pol_1 3756349
pol_x 3856809
pol_xn 2249925
pol_xnall 294
polx_F2x 1079285
polx_Flx 37826601
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43176648
pr_get_e 15948337
pr_get_f 26036093
pr_get_gen 12055254
pr_get_p 91688973
pr_get_tau 48861140
pr_is_inert 16905905
pr_norm 1088547
prec2lg 4510104121
prec2nbits 105656013
prec2nbits_mul 581136
prec2ndec 9778
precdbl 475483
qfb_disc 18514523
qfb_disc3 4988667
qfb_is_qfi 62947726
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8081298448
rnf_get_absdegree 1392746
rnf_get_alpha 1428
rnf_get_degree 2506307
rnf_get_disc 350
rnf_get_idealdisc 1386
rnf_get_index 105
rnf_get_invzk 1225
rnf_get_k 1225
rnf_get_map 135659
rnf_get_nf 786030
rnf_get_nfdegree 21455
rnf_get_nfpol 255354
rnf_get_nfvarn 4886
rnf_get_nfzk 7245
rnf_get_pol 2845157
rnf_get_polabs 327628
rnf_get_ramified_primes 2849
rnf_get_varn 574
rnf_get_zk 4830
row 764002
row_i 987
rowcopy 204988
rowpermute 14704748
rowslice 79345504
rowslicepermute 184682
rowsplice 273
ser_isexactzero 10079479
shallowcopy 27635182
sqrfrac 4148033
sqrti 6663491
sqrtnr 2807108
sqrtr 80275970
sstoQ 1097215
sturm 385
submulii 32847018
submuliu 7742
submuliu_inplace 60246882
truecoef 0
trunc_safe 0
ulogint 1713007
upr_norm 343930
uutoQ 1600142
vec_append 3461156
vec_ei 1714573
vec_lengthen 18946
vec_prepend 313988
vec_setconst 0
vec_shorten 11549
vec_to_vecsmall 4031495
veclast 9372650
vecmodii 0
vecmoduu 49784
vecpermute 20517903
vecreverse 697235
vecreverse_inplace 2570
vecslice 656274261
vecslicepermute 2689159
vecsmall_append 4111378
vecsmall_coincidence 0
vecsmall_concat 1464426
vecsmall_copy 4404280
vecsmall_ei 584689
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 540
vecsmall_lexcmp 7043259
vecsmall_max 1164656
vecsmall_min 2324
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186991
vecsmall_reverse 3052
vecsmall_shorten 74577
vecsmall_to_col 7833184
vecsmall_to_vec 511571
vecsmall_to_vec_inplace 3304
vecsmallpermute 78733232
vecsmalltrunc_append 101538539
vecsmalltrunc_init 189054916
vecsplice 384892
vectrunc_append 16162466
vectrunc_append_batch 12306
vectrunc_init 12066361
zc_to_ZC 7819004
zero_F2m 0
zero_F2m_copy 845126
zero_F2v 3648138
zero_F2x 1350
zero_Flm 2830059
zero_Flm_copy 235901
zero_Flv 59491550
zero_Flx 1426877
zero_zm 0
zero_zv 36731463
zero_zx 0
zerocol 122267278
zeromat 109122
zeromatcopy 14239623
zeropadic 855582
zeropadic_shallow 17024
zeropol 42358572
zeroser 138824
zerovec 28455245
zerovec_block 28947
zm_copy 0
zm_row 0
zm_to_zxV 0
zm_transpose 266
znstar_get_N 38653757
znstar_get_U 176107
znstar_get_Ui 46788
znstar_get_conreycyc 7978902
znstar_get_conreygen 3289889
znstar_get_cyc 262088
znstar_get_faN 7330731
znstar_get_gen 16150
znstar_get_no 14
znstar_get_pe 2868790
zv_copy 2184195
zv_to_ZV 502996
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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