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 v2.19.0 lcov report (development 31092-e6893b0017) Lines: 92.5 % 1535 1420
Test Date: 2026-08-21 17:02:56 Functions: 91.8 % 707 649
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
F2m_clear 0
F2m_coeff 8463229
F2m_copy 201411
F2m_flip 1560622
F2m_set 798
F2v_clear 12464194
F2v_coeff 665816138
F2v_copy 4893
F2v_ei 42
F2v_flip 1560622
F2v_set 104219689
F2v_to_F2x 39016
F2xX_shift 0
F2x_clear 12464194
F2x_coeff 672414198
F2x_copy 66605085
F2x_div 1580496
F2x_equal 4259240
F2x_equal1 2871829
F2x_flip 1560622
F2x_renormalize 130596703
F2x_set 130238938
F2xqX_div 33187
F3m_coeff 144858
F3m_copy 0
F3m_set 0
Flm_copy 6442096
Flm_row 8755721
Flv_copy 2251323
Flx_constant 1092086
Flx_copy 196489991
Flx_div 2003294
Flx_div_pre 21822365
Flx_equal1 8248167
Flx_lead 1067019
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 4641882
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 782142
FpXY_Fq_evaly 20405
FpX_div 5609773
FpX_renormalize 146568374
Fp_add 184884942
Fp_addmul 11308856
Fp_center 78864579
Fp_center_i 18207816
Fp_div 14993227
Fp_divu 15087875
Fp_double 21332554
Fp_halve 243517
Fp_inv 23544845
Fp_invsafe 1098684
Fp_mul 204957397
Fp_muls 17640
Fp_mulu 72832793
Fp_neg 37725878
Fp_red 83006520
Fp_sqr 68655277
Fp_sub 203492601
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 579689
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 449758
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 369136
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 3109642
Fq_to_FpXQ 73652
GENbinbase 934016006
QV_isscalar 54425227
Q_abs 8131124
Q_abs_shallow 127658
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 620024
RgC_gtofp 34118339
RgC_gtomp 574
RgM_dimensions 9956651
RgM_fpnorml2 23338
RgM_gtofp 8263552
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22268807
RgV_gtofp 56
RgV_is_QV 142058
RgV_is_ZV 32132597
RgV_isin 111958
RgV_isin_i 111958
RgV_isscalar 1211819
RgXQX_div 1904
RgXQX_rem 127908
RgX_coeff 2909086
RgX_copy 103803420
RgX_div 7001097
RgX_equal_var 27145972
RgX_fpnorml2 62765
RgX_gtofp 7173839
RgX_is_QX 400126
RgX_is_ZX 22521710
RgX_is_monomial 1346231
RgX_is_rational 68842
RgX_isscalar 0
RgX_renormalize 34135
RgX_shift_inplace 479615
RgX_shift_inplace_init 479615
RgX_to_RgV 140
Rg_col_ei 1472576
Rg_to_Fq 756
ZC_hnfrem 10699786
ZM_ZV_mod 610949
ZM_hnfrem 401534
ZM_lll 7142032
ZV_ZV_mod 8147914
ZV_dvd 23485
ZV_isscalar 23697240
ZV_to_zv 3318880
ZXQ_mul 2192265
ZXQ_sqr 963427
ZX_equal1 10514
ZX_is_monic 7723191
ZX_renormalize 158594448
Z_ispower 98
Z_issquare 509836
abgrp_get_cyc 12235183
abgrp_get_gen 1766677
abgrp_get_no 407114
absfrac 48084615
absfrac_shallow 13097
addmuliu 549733
addmuliu_inplace 66030021
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 480525366
bit_accuracy 3221983750
bit_accuracy_mul 3176882
bit_prec 0
bnf_get_clgp 5380463
bnf_get_cyc 3689996
bnf_get_fu 25859
bnf_get_fu_nocheck 289112
bnf_get_gen 1681899
bnf_get_logfu 2877898
bnf_get_nf 9875390
bnf_get_no 8386
bnf_get_reg 648
bnf_get_sunits 1369339
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 124811248
cbrtr 0
cbrtr_abs 0
cgetalloc 10153
cgetc 976273
cgiv 106107590
checkell_i 10953981
closure_arity 333296986
closure_codestr 282744466
closure_get_code 28
closure_get_data 282731069
closure_get_dbg 13674
closure_get_frame 14757766
closure_get_oper 282744466
closure_get_text 37178
closure_is_variadic 46076991
col_ei 5929118
coltrunc_init 740376
const_col 9731302
const_vec 34728950
const_vecsmall 18941297
constant_coeff 1065044
cxcompotor 18767596
cxnorm 95485055
cxtofp 9249257
cxtoreal 338020
cyc_get_expo 2757632
cyclic_perm 99932
dbllog2r 94961342
degpol 5658398998
div_content 58501
divsBIL 8489634365
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232939
ellR_get_sign 371829
ell_get_a1 17419095
ell_get_a2 11293911
ell_get_a3 13229511
ell_get_a4 10507536
ell_get_a6 10552243
ell_get_b2 7552239
ell_get_b4 2550719
ell_get_b6 3863695
ell_get_b8 3297567
ell_get_c4 13707195
ell_get_c6 16166530
ell_get_disc 18144770
ell_get_j 2126895
ell_get_type 22946858
ell_is_inf 59323086
ellff_get_a4a6 551869
ellff_get_field 1791809
ellinf 1097909
ellnf_get_bnf 119
ellnf_get_nf 2027312
equali1 1180126050
equalim1 139584403
err_get_compo 294
err_get_num 439306
gaddgs 123273818
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 238010721
gc_INT 4194329677
gc_INT_affii 11653913
gc_all 103410042
gc_leaf 1209398510
gc_slice 2217743
gc_upto 2017937295
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 1269377
gener_Fq_local 29946
gequalgs 29246
get_F2x_degree 1936554
get_F2x_mod 3311028
get_F2x_var 2176656
get_F2xqX_degree 201185
get_F2xqX_mod 343
get_F2xqX_var 376106
get_Flx_degree 84209441
get_Flx_mod 25663153
get_Flx_var 69188612
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 8094049
get_FpX_mod 3391340
get_FpX_var 6879854
gisdouble 2991969
gmax_shallow 13510257
gmaxsg 0
gmin_shallow 902805
gminsg 0
gmulgs 29773065
gmulgu 283377954
gsubgs 1731852
gtodouble 66283604
gtofp 260468439
gtomp 22428
gtos 85888552
gtou 102019
guncloneNULL 48997992
guncloneNULL_deep 1555390
gval 6391
hash_str 2787689
hash_str_len 31645575
icopy_avma 8132878763
idealchineseinit 5427
idealred 139126
identity_ZV 8120
identity_perm 3260206
identity_zv 3284569
inf_get_sign 1454458
inv_content 0
is_bigint 592033074
is_const_t 5001735937
is_extscalar_t 6904
is_intreal_t 9716331
is_matvec_t 639732440
is_noncalc_t 86218489
is_pm1 2307859264
is_qfb_t 0
is_rational_t 5304042
is_real_t 62080967
is_recursive_t 9575756222
is_scalar_t 376859125
is_universal_constant 334916087
is_vec_t 44253501
isint1 18256728
isintm1 6224565
isintzero 2911009442
ismpzero 9716240
isonstack 8505729778
killblock 1982432
leading_coeff 169547902
leafcopy_avma 586413116
lg_increase 477304623
lgcols 354522482
lgpol 2776782312
lincombii 38350773
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 16931521
mkcol 10667535
mkcol2 168883992
mkcol2s 4416244
mkcol3 88320
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232582
mkcolcopy 33560
mkcols 40411
mkcomplex 93001320
mkerr 0
mkfrac 54549536
mkfraccopy 5217045
mkfracss 1209605
mkintmod 8073614
mkintmodu 1834
mkmat 4783262
mkmat2 33669603
mkmat22 54535996
mkmat22s 207578
mkmat3 17003
mkmat4 84
mkmat5 0
mkmatcopy 122327
mkmoo 108950
mkoo 1333286
mkpadic 2009
mkpolmod 3297287
mkqfb 28268761
mkquad 69118
mkrfrac 698726
mkrfraccopy 14
mkvec 70142892
mkvec2 223221957
mkvec2copy 114570
mkvec2s 221667
mkvec3 126074476
mkvec3s 524441
mkvec4 10533220
mkvec4s 21
mkvec5 15190506
mkvec5s 0
mkvec6 42
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 143644611
mkvecsmall2 262018339
mkvecsmall3 106870240
mkvecsmall4 20242440
mkvecsmall5 1898403
modpr_get_T 13867548
modpr_get_p 1887627
modpr_get_pr 31237604
mul_content 2672460
mul_denom 10788461
mulsubii 3898828
nbits2extraprec 918237436
nbits2ndec 0
nbits2nlong 620902809
nbits2prec 189566028
nbrows 159337878
nchar2nlong 127829457
ndec2nbits 8270
ndec2nlong 41829
ndec2prec 33559
nfV_to_scalar_or_alg 26300
nf_get_G 304603
nf_get_M 21751376
nf_get_Tr 23352
nf_get_degree 71318811
nf_get_diff 4445
nf_get_disc 464440
nf_get_index 3716970
nf_get_invzk 9782806
nf_get_pol 98101554
nf_get_r1 23476340
nf_get_r2 4154
nf_get_ramified_primes 65098
nf_get_roots 1632835
nf_get_roundG 1749527
nf_get_sign 522482
nf_get_varn 1504035
nf_get_zk 4382
nf_get_zkden 5465239
nf_get_zkprimpart 5419515
normalize_frac 28141640
odd 2140610638
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 494841937
pari_malloc 730385665
pari_realloc 1887
pari_realloc_ip 2385370
pari_stack_alloc 982147747
pari_stack_base 988217245
pari_stack_delete 6063652
pari_stack_init 6446225
pari_stack_new 886682653
pari_stack_pushp 5840
perm_conj 422429
perm_inv 3781113
perm_mul 81655097
perm_sqr 728
pol0_F2x 17427953
pol0_Flx 114790047
pol1_F2x 4776592
pol1_Flx 56079603
pol_0 84220431
pol_1 3762733
pol_x 3886970
pol_xn 2237761
pol_xnall 294
polx_F2x 1083815
polx_Flx 37979956
polx_zx 0
polxn_Flx 371
powIs 620095
powii 43757794
pr_get_e 16165224
pr_get_f 26447403
pr_get_gen 12077705
pr_get_p 92765512
pr_get_tau 49777202
pr_is_inert 17227636
pr_norm 1090559
prec2lg 4748941683
prec2nbits 93803032
prec2nbits_mul 581910
prec2ndec 9778
precdbl 476735
qfb_disc 18522403
qfb_disc3 5001657
qfb_is_qfi 65331861
quad_disc 1379
quadnorm 70105
random_Fq 0
remsBIL 8395134395
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 767844
row_i 987
rowcopy 204988
rowpermute 14794108
rowslice 80071929
rowslicepermute 233912
rowsplice 273
ser_isexactzero 11871524
shallowcopy 27955888
sqrfrac 4399519
sqrti 6618427
sqrtnr 2811822
sqrtr 87237494
sstoQ 1097313
sturm 385
submulii 33037982
submuliu 7700
submuliu_inplace 66536301
truecoef 0
trunc_safe 0
ulogint 2120477
upr_norm 347921
uutoQ 1602256
vec_append 3470856
vec_ei 1716769
vec_lengthen 18983
vec_prepend 313943
vec_setconst 0
vec_shorten 11564
vec_to_vecsmall 4149430
veclast 9557832
vecmodii 0
vecmoduu 49784
vecpermute 21127846
vecreverse 697305
vecreverse_inplace 2612
vecslice 670244268
vecslicepermute 2879620
vecsmall_append 4117808
vecsmall_coincidence 0
vecsmall_concat 1466210
vecsmall_copy 7353878
vecsmall_ei 585494
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7211133
vecsmall_max 1177907
vecsmall_min 5509
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 187025
vecsmall_reverse 3052
vecsmall_shorten 77080
vecsmall_to_col 7992811
vecsmall_to_vec 513109
vecsmall_to_vec_inplace 3304
vecsmallpermute 79341782
vecsmalltrunc_append 101231027
vecsmalltrunc_init 256931854
vecsplice 385296
vectrunc_append 15915240
vectrunc_append_batch 9667
vectrunc_init 11795717
zc_to_ZC 7978265
zero_F2m 0
zero_F2m_copy 847284
zero_F2v 3663673
zero_F2x 1350
zero_Flm 2854897
zero_Flm_copy 241023
zero_Flv 61814478
zero_Flx 3256247
zero_zm 0
zero_zv 39184878
zero_zx 0
zerocol 125330341
zeromat 108904
zeromatcopy 14382715
zeropadic 858086
zeropadic_shallow 17150
zeropol 42429158
zeroser 139020
zerovec 29356684
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 1879765
zv_to_ZV 504205
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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