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) Coverage Total Hit
Test: PARI/GP v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 92.6 % 1535 1422
Test Date: 2026-07-23 17:04:59 Functions: 92.1 % 707 651
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
F2m_clear 0
F2m_coeff 8462959
F2m_copy 201411
F2m_flip 1560492
F2m_set 798
F2v_clear 12463961
F2v_coeff 665814570
F2v_copy 4893
F2v_ei 42
F2v_flip 1560492
F2v_set 104219398
F2v_to_F2x 38959
F2xX_shift 0
F2x_clear 12463961
F2x_coeff 672512608
F2x_copy 66590817
F2x_div 1579897
F2x_equal 4256902
F2x_equal1 2871869
F2x_flip 1560492
F2x_renormalize 130597024
F2x_set 130281215
F2xqX_div 33187
F3m_coeff 144859
F3m_copy 0
F3m_set 0
Flm_copy 6442240
Flm_row 8756510
Flv_copy 2251230
Flx_constant 1092086
Flx_copy 196470581
Flx_div 2003309
Flx_div_pre 21817862
Flx_equal1 8248281
Flx_lead 1066584
Flx_mulu 1155304
FlxqX_div 0
FlxqX_div_pre 165917
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4519
FpXQX_renormalize 4641900
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 782142
FpXY_Fq_evaly 20405
FpX_div 5609820
FpX_renormalize 146564168
Fp_add 185108678
Fp_addmul 11358940
Fp_center 78861016
Fp_center_i 18208029
Fp_div 14993238
Fp_divu 15087984
Fp_double 21452011
Fp_halve 243517
Fp_inv 23541654
Fp_invsafe 1098685
Fp_mul 205140247
Fp_muls 17640
Fp_mulu 71121272
Fp_neg 37478342
Fp_red 83002417
Fp_sqr 69088032
Fp_sub 203815482
FqXQ_add 0
FqXQ_div 0
FqXQ_inv 0
FqXQ_invsafe 0
FqXQ_mul 22745
FqXQ_pow 0
FqXQ_sqr 0
FqXQ_sub 0
FqX_Fp_mul 579197
FqX_Fq_mul 424510
FqX_add 124082
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 39697
FqX_div 38569
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 449519
FqX_factor 140960
FqX_factor_squarefree 7
FqX_gcd 8288
FqX_get_red 6069
FqX_halfgcd 0
FqX_halve 19250
FqX_integ 0
FqX_is_squarefree 683718
FqX_mul 368912
FqX_mulu 21900
FqX_neg 24900
FqX_normalize 4144
FqX_powu 1288
FqX_red 25298
FqX_rem 37659
FqX_roots 7231
FqX_sqr 71232
FqX_sub 68026
FqX_to_mod 175
FqXn_exp 0
FqXn_expint 6590
FqXn_inv 7070
FqXn_mul 261240
FqXn_sqr 0
Fq_red 3109222
Fq_to_FpXQ 73652
GENbinbase 934270387
QV_isscalar 54435560
Q_abs 8131105
Q_abs_shallow 120267
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 620024
RgC_gtofp 34121248
RgC_gtomp 574
RgM_dimensions 9956603
RgM_fpnorml2 23337
RgM_gtofp 8264329
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22241375
RgV_gtofp 56
RgV_is_QV 142052
RgV_is_ZV 32138227
RgV_isin 111957
RgV_isin_i 111957
RgV_isscalar 1211818
RgXQX_div 1904
RgXQX_rem 127908
RgX_coeff 2909086
RgX_copy 103802800
RgX_div 7001097
RgX_equal_var 27145972
RgX_fpnorml2 62751
RgX_gtofp 7173870
RgX_is_QX 400113
RgX_is_ZX 22521796
RgX_is_monomial 1345838
RgX_is_rational 68841
RgX_isscalar 0
RgX_renormalize 34135
RgX_shift_inplace 479616
RgX_shift_inplace_init 479616
RgX_to_RgV 140
Rg_col_ei 1454577
Rg_to_Fq 756
ZC_hnfrem 10699829
ZM_ZV_mod 610999
ZM_hnfrem 401485
ZM_lll 7142551
ZV_ZV_mod 8148008
ZV_dvd 23485
ZV_isscalar 23682389
ZV_to_zv 3318879
ZXQ_mul 2192227
ZXQ_sqr 963420
ZX_equal1 10514
ZX_is_monic 7723160
ZX_renormalize 158573561
Z_ispower 98
Z_issquare 509832
abgrp_get_cyc 12235182
abgrp_get_gen 1766676
abgrp_get_no 407115
absfrac 48086710
absfrac_shallow 28237
addmuliu 549832
addmuliu_inplace 66021124
affc_fixlg 250436
affgr 665850
bid_get_MOD 2157304
bid_get_U 3680282
bid_get_arch 41188
bid_get_archp 2397285
bid_get_cyc 5740019
bid_get_fact 2499065
bid_get_fact2 2201621
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804874
bid_get_ideal 72849
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2158039
bin_copy 480632320
bit_accuracy 3245648975
bit_accuracy_mul 3176882
bit_prec 144343293
bnf_get_clgp 5380461
bnf_get_cyc 3689995
bnf_get_fu 25859
bnf_get_fu_nocheck 289112
bnf_get_gen 1681898
bnf_get_logfu 2877897
bnf_get_nf 9875388
bnf_get_no 8386
bnf_get_reg 648
bnf_get_sunits 1369338
bnf_get_tuN 283031
bnf_get_tuU 303613
bnr_get_bid 2046122
bnr_get_bnf 3710982
bnr_get_clgp 2830388
bnr_get_cyc 2522682
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77126
bnr_get_nf 1399132
bnr_get_no 277494
both_odd 124810656
cbrtr 0
cbrtr_abs 0
cgetalloc 10153
cgetc 976273
cgiv 106229372
checkell_i 10828010
closure_arity 333230347
closure_codestr 282679033
closure_get_code 28
closure_get_data 282665636
closure_get_dbg 13674
closure_get_frame 14756522
closure_get_oper 282679033
closure_get_text 37178
closure_is_variadic 46074563
col_ei 5929194
coltrunc_init 740376
const_col 9731337
const_vec 34703345
const_vecsmall 18915582
constant_coeff 1065040
cxcompotor 18766243
cxnorm 95484246
cxtofp 9248581
cxtoreal 338020
cyc_get_expo 2757632
cyclic_perm 99932
dbllog2r 94958834
degpol 5647657768
div_content 58501
divsBIL 8468647494
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232939
ellR_get_sign 371829
ell_get_a1 17419146
ell_get_a2 11293929
ell_get_a3 13229559
ell_get_a4 10507553
ell_get_a6 10552258
ell_get_b2 7552268
ell_get_b4 2550720
ell_get_b6 3863696
ell_get_b8 3297568
ell_get_c4 13581157
ell_get_c6 16040406
ell_get_disc 18018733
ell_get_j 2126899
ell_get_type 22568894
ell_is_inf 59322527
ellff_get_a4a6 551897
ellff_get_field 1791876
ellinf 1097909
ellnf_get_bnf 119
ellnf_get_nf 2027312
equali1 1181232714
equalim1 139584506
err_get_compo 294
err_get_num 439223
gaddgs 123273820
gal_get_den 27867
gal_get_e 91
gal_get_gen 15624
gal_get_group 80528
gal_get_invvdm 27874
gal_get_mod 23870
gal_get_orders 6713
gal_get_p 6118
gal_get_pol 36428
gal_get_roots 32844
gc_GEN 239420789
gc_INT 4192333117
gc_INT_affii 11659440
gc_all 103369344
gc_leaf 1205436968
gc_slice 2217800
gc_upto 2014474580
gchar_copy_precs 1470
gchar_get_DLdata 192479
gchar_get_S 38371
gchar_get_U 0
gchar_get_Ui 11096
gchar_get_basis 34731
gchar_get_bnf 207685
gchar_get_cyc 16535
gchar_get_evalprec 4011
gchar_get_hnf 0
gchar_get_loccyc 52520
gchar_get_m0 3823
gchar_get_mod 8225
gchar_get_modP 4095
gchar_get_nalg 2296
gchar_get_nc 38876
gchar_get_nf 247942
gchar_get_nfprec 13854
gchar_get_nfree 322
gchar_get_nm 2108
gchar_get_ns 38371
gchar_get_ntors 322
gchar_get_prec 19427
gchar_get_r1 17683
gchar_get_r2 623
gchar_get_sfu 1996
gchar_get_u0 5002
gchar_get_zm 286343
gchar_set_HUUi 637
gchar_set_basis 1827
gchar_set_cyc 1827
gchar_set_evalprec 2086
gchar_set_m0 1190
gchar_set_nalg 637
gchar_set_nf 2363
gchar_set_nfprec 3466
gchar_set_nfree 637
gchar_set_ntors 637
gchar_set_prec 1470
gchar_set_u0 2142
gcmpgs 761951
gdivsg 561958
gen_I 1269369
gener_Fq_local 29946
gequalgs 29246
get_F2x_degree 1936696
get_F2x_mod 3311089
get_F2x_var 2176817
get_F2xqX_degree 201185
get_F2xqX_mod 343
get_F2xqX_var 376106
get_Flx_degree 83426280
get_Flx_mod 25663053
get_Flx_var 69185175
get_FlxqX_degree 320067
get_FlxqX_mod 8033
get_FlxqX_var 266299
get_FpXQX_degree 3569
get_FpXQX_mod 146583
get_FpXQX_var 51430
get_FpX_degree 8094089
get_FpX_mod 3391363
get_FpX_var 6879915
gisdouble 2992307
gmax_shallow 13510262
gmaxsg 0
gmin_shallow 902770
gminsg 0
gmulgs 29751800
gmulgu 283377954
gsubgs 1731854
gtodouble 66283891
gtofp 260503736
gtomp 22428
gtos 85888562
gtou 102023
guncloneNULL 48996922
guncloneNULL_deep 1555058
gval 6391
hash_str 2787689
hash_str_len 31640706
icopy_avma 8130314400
idealchineseinit 5427
idealred 139122
identity_ZV 8120
identity_perm 3260139
identity_zv 3284502
inf_get_sign 1454556
inv_content 0
is_bigint 589905559
is_const_t 5001693798
is_extscalar_t 6904
is_intreal_t 9716551
is_matvec_t 639613654
is_noncalc_t 86220160
is_pm1 2295934027
is_qfb_t 0
is_rational_t 5047069
is_real_t 62080000
is_recursive_t 9573279592
is_scalar_t 376859516
is_universal_constant 334730895
is_vec_t 44253505
isint1 18140988
isintm1 6224531
isintzero 2910504674
ismpzero 9716460
isonstack 8495438898
killblock 1982231
leading_coeff 169545342
leafcopy_avma 587602332
lg_increase 475863174
lgcols 354354817
lgpol 2771871999
lincombii 38348562
locs_get_Lgenfil 1288
locs_get_Lsprk 195755
locs_get_cyc 54144
locs_get_famod 1288
locs_get_m_infty 211534
locs_get_mod 8225
logint 757174
matpascal 4935
matslice 16932343
mkcol 10667527
mkcol2 168415523
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232582
mkcolcopy 33555
mkcols 40411
mkcomplex 92994806
mkerr 0
mkfrac 43050920
mkfraccopy 5129655
mkfracss 1209605
mkintmod 8073833
mkintmodu 1834
mkmat 4783300
mkmat2 33670094
mkmat22 54382154
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122337
mkmoo 108951
mkoo 1333383
mkpadic 2009
mkpolmod 3297284
mkqfb 28269497
mkquad 69118
mkrfrac 698726
mkrfraccopy 14
mkvec 70139249
mkvec2 222857113
mkvec2copy 114555
mkvec2s 221653
mkvec3 123643266
mkvec3s 524441
mkvec4 10532632
mkvec4s 21
mkvec5 15190564
mkvec5s 0
mkvec6 42
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 143655003
mkvecsmall2 262029248
mkvecsmall3 106873679
mkvecsmall4 20247785
mkvecsmall5 1898408
modpr_get_T 13867549
modpr_get_p 1887627
modpr_get_pr 31237605
mul_content 2660541
mul_denom 10783040
mulsubii 3899482
nbits2extraprec 1528181196
nbits2ndec 228
nbits2nlong 13262380
nbits2prec 199165902
nbrows 159332019
nchar2nlong 127802222
ndec2nbits 8270
ndec2nlong 41829
ndec2prec 33559
nfV_to_scalar_or_alg 26300
nf_get_G 304645
nf_get_M 21751546
nf_get_Tr 23352
nf_get_degree 71400071
nf_get_diff 4445
nf_get_disc 464441
nf_get_index 3716981
nf_get_invzk 9782854
nf_get_pol 98183052
nf_get_r1 23476650
nf_get_r2 4154
nf_get_ramified_primes 65098
nf_get_roots 1632880
nf_get_roundG 1749568
nf_get_sign 522482
nf_get_varn 1504035
nf_get_zk 4382
nf_get_zkden 5465385
nf_get_zkprimpart 5419661
normalize_frac 17758204
odd 2140067927
pari_calloc 48209
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
pari_err_DIM 718
pari_err_DOMAIN 2876
pari_err_FILE 0
pari_err_FILEDESC 36
pari_err_FLAG 98
pari_err_IMPL 539
pari_err_INV 20032
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 70
pari_err_SQRTN 7084
pari_err_TYPE 15370
pari_err_TYPE2 3493
pari_err_VAR 371
pari_free 494948277
pari_malloc 730491712
pari_realloc 1887
pari_realloc_ip 2384842
pari_stack_alloc 982050867
pari_stack_base 988119037
pari_stack_delete 6062324
pari_stack_init 6444814
pari_stack_new 886587133
pari_stack_pushp 5840
perm_conj 422429
perm_inv 3781182
perm_mul 81656797
perm_sqr 728
pol0_F2x 17432385
pol0_Flx 114795902
pol1_F2x 4777984
pol1_Flx 56079249
pol_0 84220405
pol_1 3762772
pol_x 3887031
pol_xn 2237756
pol_xnall 294
polx_F2x 1083528
polx_Flx 37978369
polx_zx 0
polxn_Flx 371
powIs 620095
powii 43757892
pr_get_e 16165373
pr_get_f 26447816
pr_get_gen 12077978
pr_get_p 92766024
pr_get_tau 49777658
pr_is_inert 17227870
pr_norm 1090626
prec2lg 4753444650
prec2nbits 108463957
prec2nbits_mul 581910
prec2ndec 9778
precdbl 476735
qfb_disc 18522407
qfb_disc3 5002025
qfb_is_qfi 65341381
quad_disc 1379
quadnorm 70105
random_Fq 0
remsBIL 8384133267
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 767828
row_i 987
rowcopy 204988
rowpermute 14794922
rowslice 80075257
rowslicepermute 234388
rowsplice 273
ser_isexactzero 11871524
shallowcopy 27931246
sqrfrac 4399698
sqrti 6618091
sqrtnr 2811966
sqrtr 87238835
sstoQ 1097313
sturm 385
submulii 33023974
submuliu 7700
submuliu_inplace 66526418
truecoef 0
trunc_safe 0
ulogint 2116695
upr_norm 347921
uutoQ 1602256
vec_append 3470858
vec_ei 1716800
vec_lengthen 18983
vec_prepend 313943
vec_setconst 0
vec_shorten 11564
vec_to_vecsmall 4149429
veclast 9557863
vecmodii 0
vecmoduu 49784
vecpermute 21132678
vecreverse 697305
vecreverse_inplace 2612
vecslice 670252788
vecslicepermute 2881046
vecsmall_append 4117794
vecsmall_coincidence 0
vecsmall_concat 1466275
vecsmall_copy 7353981
vecsmall_ei 585528
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7211133
vecsmall_max 1177894
vecsmall_min 5509
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 187025
vecsmall_reverse 3052
vecsmall_shorten 77082
vecsmall_to_col 7993578
vecsmall_to_vec 513116
vecsmall_to_vec_inplace 3304
vecsmallpermute 79343445
vecsmalltrunc_append 101231021
vecsmalltrunc_init 256326875
vecsplice 385292
vectrunc_append 15914589
vectrunc_append_batch 9667
vectrunc_init 11795454
zc_to_ZC 7979032
zero_F2m 0
zero_F2m_copy 847268
zero_F2v 3663647
zero_F2x 1350
zero_Flm 2854824
zero_Flm_copy 241029
zero_Flv 61823899
zero_Flx 3256287
zero_zm 0
zero_zv 39191510
zero_zx 0
zerocol 125380642
zeromat 108888
zeromatcopy 14387211
zeropadic 858086
zeropadic_shallow 17150
zeropol 42429168
zeroser 139020
zerovec 29356336
zerovec_block 29675
zm_copy 0
zm_row 0
zm_to_zxV 0
zm_transpose 266
znstar_get_N 38658755
znstar_get_U 176107
znstar_get_Ui 46788
znstar_get_conreycyc 7982136
znstar_get_conreygen 3290533
znstar_get_cyc 262088
znstar_get_faN 7334854
znstar_get_gen 16150
znstar_get_no 14
znstar_get_pe 2869070
zv_copy 1879869
zv_to_ZV 504212
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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