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
F2xX_shift 0
F3m_copy 0
F3m_set 0
FlxqX_div 0
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQ_add 0
FpXQ_sub 0
FqXQ_add 0
FqXQ_div 0
FqXQ_inv 0
FqXQ_invsafe 0
FqXQ_pow 0
FqXQ_sqr 0
FqXQ_sub 0
FqX_divrem 0
FqX_halfgcd 0
FqX_integ 0
FqXn_exp 0
FqXn_sqr 0
R_abs 0
RgX_isscalar 0
bid_get_gen_nocheck 0
bid_get_no 0
cbrtr 0
cbrtr_abs 0
gchar_get_U 0
gchar_get_hnf 0
gmaxsg 0
gminsg 0
inv_content 0
is_qfb_t 0
mkcol4s 0
mkerr 0
mkmat5 0
mkvec5s 0
pari_err_FILE 0
pari_err_MAXPRIME 0
pari_err_PACKAGE 0
polx_zx 0
random_Fq 0
truecoef 0
trunc_safe 0
vec_setconst 0
vecmodii 0
vecsmall_coincidence 0
zero_F2m 0
zero_zm 0
zero_zx 0
zm_copy 0
zm_row 0
zm_to_zxV 0
zx_shift 0
zx_to_zv 0
FqX_ddf 7
FqX_factor_squarefree 7
mkrfraccopy 14
pari_err_BUG 14
znstar_get_no 14
RgM_gtomp 21
mkvec4s 21
pari_err_CONSTPOL 21
vecsmall_indexmax 21
vecsmall_indexmin 21
closure_get_code 28
pari_err_FILEDESC 36
F2v_ei 42
mkvec6 42
RgV_gtofp 56
pari_err_IRREDPOL 63
bnr_get_gen_nocheck 70
pari_err_ROOTS0 70
mkmat4 84
vecsmall_isin 84
vecsmall_pack 84
gal_get_e 91
pari_err_COPRIME 91
mkcol5 94
Z_ispower 98
pari_err_FLAG 98
pari_err_PRIME 98
rnf_get_index 105
ellnf_get_bnf 119
RgX_to_RgV 140
pari_err_OVERFLOW 156
mkvecs 168
FqX_to_mod 175
pari_err_COMPONENT 214
nbits2ndec 228
pari_err_PREC 238
pari_err_PRIORITY 245
zm_transpose 266
rowsplice 273
err_get_compo 294
pol_xnall 294
mkvec6s 301
ellQp_get_prec 308
mkcol3s 315
gchar_get_nfree 322
gchar_get_ntors 322
get_F2xqX_mod 343
rnf_get_disc 357
pari_err_VAR 371
polxn_Flx 371
sturm 385
pari_err_OP 406
pari_err_IMPL 539
vecsmall_lengthen 547
RgC_gtomp 574
rnf_get_varn 574
gchar_get_r2 623
gchar_set_HUUi 637
gchar_set_nalg 637
gchar_set_nfree 637
gchar_set_ntors 637
bnf_get_reg 648
pari_err_DIM 718
perm_sqr 728
Rg_to_Fq 756
F2m_set 798
row_i 987
RgM_minor 1036
ellQp_get_p 1134
gchar_set_m0 1190
rnf_get_invzk 1225
rnf_get_k 1225
FqX_powu 1288
locs_get_Lgenfil 1288
locs_get_famod 1288
pari_err_MODULUS 1316
zero_F2x 1350
quad_disc 1379
rnf_get_idealdisc 1386
rnf_get_alpha 1428
ellQp_get_zero 1463
gchar_copy_precs 1470
gchar_set_prec 1470
gchar_set_basis 1827
gchar_set_cyc 1827
mkintmodu 1834
pari_realloc 1887
RgXQX_div 1904
gchar_get_sfu 1996
mkpadic 2009
gchar_set_evalprec 2086
gchar_get_nm 2108
gchar_set_u0 2142
gchar_get_nalg 2296
gchar_set_nf 2363
vecreverse_inplace 2612
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2876
vecsmall_reverse 3052
vecsmall_to_vec_inplace 3304
gchar_set_nfprec 3466
pari_err_TYPE2 3493
get_FpXQX_degree 3569
gchar_get_m0 3823
gchar_get_evalprec 4011
gchar_get_modP 4095
FqX_normalize 4144
nf_get_r2 4154
nf_get_zk 4382
nf_get_diff 4445
FpXQX_div 4519
rnf_get_zk 4830
rnf_get_nfvarn 4886
F2v_copy 4893
matpascal 4935
gchar_get_u0 5002
idealchineseinit 5427
vecsmall_min 5509
pari_stack_pushp 5840
FqX_get_red 6069
gal_get_p 6118
gval 6391
FqXn_expint 6590
gal_get_orders 6713
is_extscalar_t 6904
FqXn_inv 7070
pari_err_SQRTN 7084
FqX_roots 7231
rnf_get_nfzk 7245
submuliu 7700
bnr_get_gen 7847
get_FlxqX_mod 8033
identity_ZV 8120
gchar_get_mod 8225
locs_get_mod 8225
ndec2nbits 8270
FqX_gcd 8288
bnf_get_no 8386
vectrunc_append_batch 9667
prec2ndec 9778
cgetalloc 10153
ZX_equal1 10514
gchar_get_Ui 11096
vec_shorten 11564
R_abs_shallow 13097
closure_get_dbg 13674
gchar_get_nfprec 13854
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15624
znstar_get_gen 16150
gchar_get_cyc 16535
mkmat3 17001
zeropadic_shallow 17150
Fp_muls 17640
gchar_get_r1 17683
vec_lengthen 18983
FqX_halve 19250
gchar_get_prec 19427
pari_err_INV 20032
FpXY_Fq_evaly 20405
rnf_get_nfdegree 21455
FqX_mulu 21900
gtomp 22428
FqXQ_mul 22745
RgM_fpnorml2 23337
nf_get_Tr 23352
ZV_dvd 23485
gal_get_mod 23870
FqX_neg 24900
FqX_red 25298
bnf_get_fu 25859
nfV_to_scalar_or_alg 26300
gal_get_den 27867
gal_get_invvdm 27874
absfrac_shallow 28237
gequalgs 29246
zerovec_block 29675
gener_Fq_local 29946
gal_get_roots 32844
F2xqX_div 33187
mkcolcopy 33555
ndec2prec 33559
RgX_renormalize 34135
gchar_get_basis 34731
Qtoss 35364
gal_get_pol 36428
closure_get_text 37178
FqX_rem 37659
gchar_get_S 38371
gchar_get_ns 38371
FqX_div 38569
gchar_get_nc 38876
F2v_to_F2x 38959
FqX_deriv 39697
mkcols 40411
bid_get_arch 41188
ndec2nlong 41829
znstar_get_Ui 46788
FqX_degfact 47786
pari_calloc 48209
bid_get_sarch 48594
vecmoduu 49784
get_FpXQX_var 51430
gchar_get_loccyc 52520
locs_get_cyc 54144
div_content 58501
RgX_fpnorml2 62751
bid_get_gen 64274
nf_get_ramified_primes 65098
FqX_sub 68026
RgX_is_rational 68841
mkquad 69118
FqX_div_by_X_x 69699
quadnorm 70105
FqX_sqr 71232
bid_get_ideal 72849
Fq_to_FpXQ 73652
vecsmall_shorten 77082
bnr_get_mod 77126
gal_get_group 80528
mkcol3 88314
cyclic_perm 99932
gtou 102023
mkcol4 103467
zv_to_zx 104146
zeromat 108888
mkmoo 108951
RgV_isin 111957
RgV_isin_i 111957
mkvec2copy 114555
Q_abs_shallow 120267
mkmatcopy 122337
mkveccopy 122528
FqX_add 124082
RgXQX_rem 127908
rnf_get_map 135659
zeroser 139020
idealred 139122
FqX_factor 140960
RgV_is_QV 142052
F3m_coeff 144859
get_FpXQX_mod 146583
FlxqX_div_pre 165917
znstar_get_U 176107
vecsmall_prepend 187025
gchar_get_DLdata 192479
locs_get_Lsprk 195755
get_F2xqX_degree 201185
F2m_copy 201411
rowcopy 204988
mkmat22s 207578
gchar_get_bnf 207685
locs_get_m_infty 211534
mkvec2s 221653
mkcol6 232582
ellR_get_prec 232939
rowslicepermute 234388
zero_Flm_copy 241029
Fp_halve 243517
gchar_get_nf 247942
affc_fixlg 250436
rnf_get_nfpol 255354
FqXn_mul 261240
znstar_get_cyc 262088
get_FlxqX_var 266299
bnr_get_no 277494
bnf_get_tuN 283031
gchar_get_zm 286343
bnf_get_fu_nocheck 289112
bnf_get_tuU 303613
nf_get_G 304645
vec_prepend 313943
get_FlxqX_degree 320067
rnf_get_polabs 327628
cxtoreal 338020
upr_norm 347921
FqX_mul 368912
ellR_get_sign 371829
get_F2xqX_var 376106
vecsplice 385292
RgX_is_QX 400113
ZM_hnfrem 401485
abgrp_get_no 407115
perm_conj 422429
FqX_Fq_mul 424510
err_get_num 439223
FqX_extgcd 449519
nf_get_disc 464441
precdbl 476735
RgX_shift_inplace 479616
RgX_shift_inplace_init 479616
zv_to_ZV 504212
Z_issquare 509832
vecsmall_to_vec 513116
nf_get_sign 522482
mkvec3s 524441
addmuliu 549832
ellff_get_a4a6 551897
gdivsg 561958
FqX_Fp_mul 579197
prec2nbits_mul 581910
vecsmall_ei 585528
ZM_ZV_mod 610999
RgC_fpnorml2 620024
powIs 620095
affgr 665850
FqX_is_squarefree 683718
vecreverse 697305
mkrfrac 698726
coltrunc_init 740376
logint 757174
gcmpgs 761951
row 767828
FpXX_renormalize 782142
rnf_get_nf 786086
zero_F2m_copy 847268
zeropadic 858086
gmin_shallow 902770
ZXQ_sqr 963420
cgetc 976273
constant_coeff 1065040
Flx_lead 1066584
polx_F2x 1083528
pr_norm 1090626
Flx_constant 1092086
sstoQ 1097313
ellinf 1097909
Fp_invsafe 1098685
Flx_mulu 1155304
vecsmall_max 1177894
mkfracss 1209605
RgV_isscalar 1211818
gen_I 1269369
mkoo 1333383
RgX_is_monomial 1345838
bnf_get_sunits 1369338
rnf_get_absdegree 1392746
bnr_get_nf 1399132
inf_get_sign 1454556
Rg_col_ei 1454577
vecsmall_concat 1466275
nf_get_varn 1504035
bid_get_mod 1521921
guncloneNULL_deep 1555058
F2m_flip 1560492
F2v_flip 1560492
F2x_flip 1560492
F2x_div 1579897
uutoQ 1602256
nf_get_roots 1632880
bnf_get_gen 1681898
vec_ei 1716800
gsubgs 1731854
nf_get_roundG 1749568
abgrp_get_gen 1766676
ellff_get_field 1791876
zv_copy 1879869
modpr_get_p 1887627
mkvecsmall5 1898408
get_F2x_degree 1936696
killblock 1982231
Flx_div 2003309
ellnf_get_nf 2027312
bnr_get_bid 2046122
ulogint 2116695
ell_get_j 2126899
bid_get_MOD 2157304
bid_get_sprk 2158039
get_F2x_var 2176817
ZXQ_mul 2192227
bid_get_fact2 2201621
gc_slice 2217800
pol_xn 2237756
Flv_copy 2251230
pari_realloc_ip 2384842
bid_get_archp 2397285
bid_get_fact 2499065
rnf_get_degree 2506335
bnr_get_cyc 2522682
ell_get_b4 2550720
mul_content 2660541
cyc_get_expo 2757632
hash_str 2787689
sqrtnr 2811966
bnr_get_clgp 2830388
rnf_get_pol 2845192
zero_Flm 2854824
znstar_get_pe 2869070
F2x_equal1 2871869
bnf_get_logfu 2877897
vecslicepermute 2881046
RgX_coeff 2909086
gisdouble 2992307
Fq_red 3109222
bit_accuracy_mul 3176882
zero_Flx 3256287
identity_perm 3260139
identity_zv 3284502
znstar_get_conreygen 3290533
mkpolmod 3297284
ell_get_b8 3297568
get_F2x_mod 3311089
ZV_to_zv 3318879
get_FpX_mod 3391363
vec_append 3470858
zero_F2v 3663647
bid_get_U 3680282
bnf_get_cyc 3689995
bnr_get_bnf 3710982
nf_get_index 3716981
pol_1 3762772
perm_inv 3781182
ell_get_b6 3863696
pol_x 3887031
mulsubii 3899482
vecsmall_append 4117794
vec_to_vecsmall 4149429
F2x_equal 4256902
sqrfrac 4399698
mkcol2s 4416244
FpXQX_renormalize 4641900
pol1_F2x 4777984
mkmat 4783300
qfb_disc3 5002025
is_rational_t 5047069
mkfraccopy 5129655
bnf_get_clgp 5380461
nf_get_zkprimpart 5419661
nf_get_zkden 5465385
FpX_div 5609820
bid_get_cyc 5740019
bid_get_grp 5804874
col_ei 5929194
pari_stack_delete 6062324
isintm1 6224531
Flm_copy 6442240
pari_stack_init 6444814
sqrti 6618091
get_FpX_var 6879915
RgX_div 7001097
ZM_lll 7142551
RgX_gtofp 7173870
vecsmall_lexcmp 7211133
znstar_get_faN 7334854
vecsmall_copy 7353981
ell_get_b2 7552268
ZX_is_monic 7723160
zc_to_ZC 7979032
znstar_get_conreycyc 7982136
vecsmall_to_col 7993578
mkintmod 8073833
get_FpX_degree 8094089
Q_abs 8131105
ZV_ZV_mod 8148008
Flx_equal1 8248281
RgM_gtofp 8264329
F2m_coeff 8462959
Flm_row 8756510
cxtofp 9248581
veclast 9557863
ismpzero 9716460
is_intreal_t 9716551
const_col 9731337
nf_get_invzk 9782854
bnf_get_nf 9875388
RgM_dimensions 9956603
ell_get_a4 10507553
mkvec4 10532632
ell_get_a6 10552258
mkcol 10667527
ZC_hnfrem 10699829
mul_denom 10783040
checkell_i 10828010
ell_get_a2 11293929
Fp_addmul 11358940
gc_INT_affii 11659440
vectrunc_init 11795454
ser_isexactzero 11871524
pr_get_gen 12077978
abgrp_get_cyc 12235182
F2v_clear 12463961
F2x_clear 12463961
ell_get_a3 13229559
nbits2nlong 13262380
gmax_shallow 13510262
ell_get_c4 13581157
modpr_get_T 13867549
zeromatcopy 14387211
closure_get_frame 14756522
rowpermute 14794922
Fp_div 14993238
Fp_divu 15087984
mkvec5 15190564
vectrunc_append 15914589
ell_get_c6 16040406
pr_get_e 16165373
matslice 16932343
pr_is_inert 17227870
ell_get_a1 17419146
pol0_F2x 17432385
normalize_frac 17758204
ell_get_disc 18018733
isint1 18140988
Fp_center_i 18208029
qfb_disc 18522407
cxcompotor 18766243
const_vecsmall 18915582
mkvecsmall4 20247785
vecpermute 21132678
Fp_double 21452011
nf_get_M 21751546
Flx_div_pre 21817862
RgM_shallowcopy 22241375
RgX_is_ZX 22521796
ell_get_type 22568894
nf_get_r1 23476650
Fp_inv 23541654
ZV_isscalar 23682389
get_Flx_mod 25663053
pr_get_f 26447816
RgX_equal_var 27145972
shallowcopy 27931246
mkqfb 28269497
zerovec 29356336
gmulgs 29751800
modpr_get_pr 31237605
hash_str_len 31640706
RgV_is_ZV 32138227
submulii 33023974
mkmat2 33670094
RgC_gtofp 34121248
const_vec 34703345
Fp_neg 37478342
polx_Flx 37978369
lincombii 38348562
znstar_get_N 38658755
zero_zv 39191510
zeropol 42429168
mkfrac 43050920
powii 43757892
is_vec_t 44253505
closure_is_variadic 46074563
absfrac 48086710
guncloneNULL 48996922
pr_get_tau 49777658
mkmat22 54382154
QV_isscalar 54435560
pol1_Flx 56079249
ell_is_inf 59322527
zero_Flv 61823899
is_real_t 62080000
qfb_is_qfi 65341381
addmuliu_inplace 66021124
gtodouble 66283891
submuliu_inplace 66526418
F2x_copy 66590817
Fp_sqr 69088032
get_Flx_var 69185175
mkvec 70139249
Fp_mulu 71121272
nf_get_degree 71400071
Fp_center 78861016
vecsmallpermute 79343445
rowslice 80075257
perm_mul 81656797
Fp_red 83002417
get_Flx_degree 83426280
pol_0 84220405
gtos 85888562
is_noncalc_t 86220160
sqrtr 87238835
pr_get_p 92766024
mkcomplex 92994806
dbllog2r 94958834
cxnorm 95484246
nf_get_pol 98183052
vecsmalltrunc_append 101231021
gc_all 103369344
RgX_copy 103802800
F2v_set 104219398
cgiv 106229372
mkvecsmall3 106873679
vecsmall_prefixcmp 108088071
prec2nbits 108463957
pol0_Flx 114795902
gaddgs 123273820
mkvec3 123643266
both_odd 124810656
zerocol 125380642
nchar2nlong 127802222
F2x_set 130281215
F2x_renormalize 130597024
equalim1 139584506
mkvecsmall 143655003
bit_prec 144343293
FpX_renormalize 146564168
ZX_renormalize 158573561
nbrows 159332019
mkcol2 168415523
leading_coeff 169545342
Fp_add 185108678
Flx_copy 196470581
nbits2prec 199165902
Fp_sub 203815482
Fp_mul 205140247
mkvec2 222857113
gc_GEN 239420789
vecsmalltrunc_init 256326875
gtofp 260503736
mkvecsmall2 262029248
closure_get_data 282665636
closure_codestr 282679033
closure_get_oper 282679033
gmulgu 283377954
closure_arity 333230347
is_universal_constant 334730895
lgcols 354354817
is_scalar_t 376859516
lg_increase 475863174
bin_copy 480632320
pari_free 494948277
leafcopy_avma 587602332
is_bigint 589905559
is_matvec_t 639613654
F2v_coeff 665814570
vecslice 670252788
F2x_coeff 672512608
pari_malloc 730491712
pari_stack_new 886587133
GENbinbase 934270387
pari_stack_alloc 982050867
pari_stack_base 988119037
equali1 1181232714
gc_leaf 1205436968
nbits2extraprec 1528181196
gc_upto 2014474580
odd 2140067927
is_pm1 2295934027
lgpol 2771871999
isintzero 2910504674
bit_accuracy 3245648975
gc_INT 4192333117
prec2lg 4753444650
is_const_t 5001693798
degpol 5647657768
icopy_avma 8130314400
remsBIL 8384133267
divsBIL 8468647494
isonstack 8495438898
is_recursive_t 9573279592

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