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 30802-b11b770002) Lines: 1421 1535 92.6 %
Date: 2026-04-11 09:26:21 Functions: 650 707 91.9 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
F2m_clear 0
F2m_coeff 8357442
F2m_copy 200658
F2m_flip 1553934
F2m_set 798
F2v_clear 12361211
F2v_coeff 664426823
F2v_copy 4487
F2v_ei 42
F2v_flip 1553934
F2v_set 104113804
F2v_to_F2x 37915
F2xX_shift 0
F2x_clear 12361199
F2x_coeff 671050567
F2x_copy 63898553
F2x_div 1558994
F2x_equal 4137565
F2x_equal1 2873789
F2x_flip 1553934
F2x_renormalize 127033536
F2x_set 129826973
F2xqX_div 33173
F3m_coeff 3255549
F3m_copy 0
F3m_set 0
Flm_copy 6434452
Flm_row 8743592
Flv_copy 2059156
Flx_constant 1091578
Flx_copy 175783192
Flx_div 1999762
Flx_div_pre 21704922
Flx_equal1 8196199
Flx_lead 1068247
Flx_mulu 1105464
FlxqX_div 0
FlxqX_div_pre 165412
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4692192
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582002
FpX_renormalize 147143806
Fp_add 183181942
Fp_addmul 11207814
Fp_center 77274338
Fp_center_i 18018923
Fp_div 15034334
Fp_divu 15128871
Fp_double 20723710
Fp_halve 247271
Fp_inv 23436039
Fp_invsafe 1097245
Fp_mul 203479559
Fp_muls 17780
Fp_mulu 65756417
Fp_neg 32670518
Fp_red 82931339
Fp_sqr 63338055
Fp_sub 200829384
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 572206
FqX_Fq_mul 427285
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38569
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 445022
FqX_factor 140960
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 367932
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 3106072
Fq_to_FpXQ 73652
GENbinbase 919506798
QV_isscalar 54419188
Q_abs 8077905
Q_abs_shallow 120224
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619944
RgC_gtofp 34034763
RgC_gtomp 574
RgM_dimensions 9954810
RgM_fpnorml2 22655
RgM_gtofp 8257949
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22234974
RgV_gtofp 56
RgV_is_QV 141997
RgV_is_ZV 32095991
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210269
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102502939
RgX_div 6997261
RgX_equal_var 26880487
RgX_fpnorml2 61607
RgX_gtofp 7164067
RgX_is_QX 399942
RgX_is_ZX 22315372
RgX_is_monomial 1325274
RgX_is_rational 68156
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
RgX_to_RgV 140
Rg_col_ei 1451044
Rg_to_Fq 756
ZC_hnfrem 10697344
ZM_ZV_mod 610674
ZM_hnfrem 401419
ZM_lll 7117786
ZV_ZV_mod 8147203
ZV_dvd 23485
ZV_isscalar 23674494
ZV_to_zv 3211715
ZXQ_mul 2166248
ZXQ_sqr 960616
ZX_equal1 10488
ZX_is_monic 7319836
ZX_renormalize 157472406
Z_ispower 98
Z_issquare 509455
abgrp_get_cyc 12231229
abgrp_get_gen 1765033
abgrp_get_no 406735
absfrac 47653287
absfrac_shallow 28237
addmuliu 541644
addmuliu_inplace 59559821
affc_fixlg 249620
affgr 899594
bid_get_MOD 2157247
bid_get_U 3680227
bid_get_arch 41188
bid_get_archp 2397109
bid_get_cyc 5739807
bid_get_fact 2498938
bid_get_fact2 2201568
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804668
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157981
bin_copy 473130227
bit_accuracy 3142278413
bit_accuracy_mul 3175715
bit_prec 143396873
bnf_get_clgp 5375470
bnf_get_cyc 3686606
bnf_get_fu 25859
bnf_get_fu_nocheck 289093
bnf_get_gen 1680320
bnf_get_logfu 2874752
bnf_get_nf 9866298
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367774
bnf_get_tuN 282997
bnf_get_tuU 303581
bnr_get_bid 2046092
bnr_get_bnf 3710942
bnr_get_clgp 2830234
bnr_get_cyc 2522559
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399088
bnr_get_no 277487
both_odd 124064215
cbrtr 0
cbrtr_abs 0
cgetalloc 10136
cgetc 975458
cgiv 105465115
checkell_i 8103962
closure_arity 356547779
closure_codestr 306094893
closure_get_code 28
closure_get_data 306069596
closure_get_dbg 13660
closure_get_frame 14734672
closure_get_oper 306088997
closure_get_text 37150
closure_is_variadic 45933533
col_ei 5925172
coltrunc_init 740257
const_col 9730049
const_vec 34672239
const_vecsmall 18860261
constant_coeff 1441247
cxcompotor 18238796
cxnorm 94097211
cxtofp 9093543
cxtoreal 337206
cyc_get_expo 2757553
cyclic_perm 99932
dbllog2r 94327733
degpol 5517173983
div_content 58512
divsBIL 8237890791
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 17049196
ell_get_a2 11108730
ell_get_a3 12863763
ell_get_a4 10325148
ell_get_a6 10371108
ell_get_b2 7371400
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11018870
ell_get_c6 13474400
ell_get_disc 16815843
ell_get_j 2126269
ell_get_type 14945962
ell_is_inf 50219182
ellff_get_a4a6 551464
ellff_get_field 1790619
ellinf 913892
ellnf_get_bnf 119
ellnf_get_nf 2027227
equali1 1170993099
equalim1 139567846
err_get_compo 294
err_get_num 62595
gaddgs 123270537
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80416
gal_get_invvdm 27874
gal_get_mod 23870
gal_get_orders 6706
gal_get_p 6118
gal_get_pol 36428
gal_get_roots 32844
gc_GEN 247008428
gc_INT 4137542123
gc_INT_affii 11571241
gc_all 102551006
gc_leaf 1161635285
gc_slice 2211192
gc_upto 1972543957
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 761924
gdivsg 559709
gen_I 1268862
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928622
get_F2x_mod 3307709
get_F2x_var 2168761
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82356259
get_Flx_mod 25497854
get_Flx_var 68240851
get_FlxqX_degree 317580
get_FlxqX_mod 8033
get_FlxqX_var 264435
get_FpXQX_degree 3589
get_FpXQX_mod 146583
get_FpXQX_var 51630
get_FpX_degree 6969362
get_FpX_mod 3387870
get_FpX_var 6952143
gisdouble 2995747
gmax_shallow 13510228
gmaxsg 0
gmin_shallow 898170
gminsg 0
gmulgs 23862369
gmulgu 283360013
gsubgs 1731937
gtodouble 66250283
gtofp 257181847
gtomp 22428
gtos 85865773
gtou 100721
guncloneNULL 49828891
guncloneNULL_deep 1508520
gval 6230
hash_str 2765234
hash_str_len 31657891
icopy_avma 8054939364
idealchineseinit 5427
idealred 138814
identity_ZV 8120
identity_perm 3243262
identity_zv 3267625
inf_get_sign 1453138
inv_content 0
is_bigint 574368507
is_const_t 5003654312
is_extscalar_t 6904
is_intreal_t 9702450
is_matvec_t 743801690
is_noncalc_t 88515221
is_pm1 2216593559
is_qfb_t 0
is_rational_t 5017657
is_real_t 61900630
is_recursive_t 9111143637
is_scalar_t 403920182
is_universal_constant 326539877
is_vec_t 44031543
isint1 17994146
isintm1 6086588
isintzero 2848026609
ismpzero 9702339
isonstack 8361121927
killblock 1957964
leading_coeff 169331355
leafcopy_avma 593050066
lg_increase 436432485
lgcols 352765413
lgpol 2622769698
lincombii 38264739
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 755005
matpascal 4683
matslice 16824785
mkcol 10653301
mkcol2 157033647
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33583
mkcols 40411
mkcomplex 92009065
mkerr 0
mkfrac 42489291
mkfraccopy 4999990
mkfracss 1209563
mkintmod 8066750
mkintmodu 1834
mkmat 4780035
mkmat2 33666549
mkmat22 50253996
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122293
mkmoo 108901
mkoo 1332017
mkpadic 2009
mkpolmod 3075531
mkqfb 27928504
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69349695
mkvec2 213754884
mkvec2copy 114530
mkvec2s 220726
mkvec3 120344964
mkvec3s 524441
mkvec4 10150226
mkvec4s 21
mkvec5 15187477
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140280415
mkvecsmall2 256965854
mkvecsmall3 103251232
mkvecsmall4 18657561
mkvecsmall5 1718707
modpr_get_T 13867070
modpr_get_p 1887627
modpr_get_pr 31236539
mul_content 2657358
mul_denom 10752992
mulsubii 3893214
nbits2extraprec 1497686236
nbits2ndec 228
nbits2nlong 12753172
nbits2prec 189004429
nbrows 158358270
nchar2nlong 127921525
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304752
nf_get_M 21745010
nf_get_Tr 23277
nf_get_degree 71375350
nf_get_diff 4445
nf_get_disc 463519
nf_get_index 3712005
nf_get_invzk 9774568
nf_get_pol 98118585
nf_get_r1 23465367
nf_get_r2 4154
nf_get_ramified_primes 64644
nf_get_roots 1628783
nf_get_roundG 1748435
nf_get_sign 519600
nf_get_varn 1503755
nf_get_zk 4382
nf_get_zkden 5462010
nf_get_zkprimpart 5416135
normalize_frac 17556757
odd 2123716889
pari_calloc 47819
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 20025
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 487492387
pari_malloc 723637439
pari_realloc 1880
pari_realloc_ip 2358696
pari_stack_alloc 1006477792
pari_stack_base 1012312924
pari_stack_delete 5883413
pari_stack_init 6378909
pari_stack_new 911104700
pari_stack_pushp 5821
perm_conj 418299
perm_inv 3747420
perm_mul 80953177
perm_sqr 728
pol0_F2x 17308689
pol0_Flx 111590285
pol1_F2x 4769258
pol1_Flx 55723769
pol_0 27189667
pol_1 3752527
pol_x 3863868
pol_xn 2252846
pol_xnall 294
polx_F2x 1074503
polx_Flx 37495103
polx_zx 0
polxn_Flx 371
powIs 596435
powii 43129932
pr_get_e 16166908
pr_get_f 26443554
pr_get_gen 12072266
pr_get_p 92759511
pr_get_tau 49772300
pr_is_inert 17223828
pr_norm 1090447
prec2lg 4562263077
prec2nbits 106941098
prec2nbits_mul 581095
prec2ndec 9778
precdbl 476371
qfb_disc 18502545
qfb_disc3 4995210
qfb_is_qfi 64541693
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8147115000
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 763890
row_i 987
rowcopy 204988
rowpermute 14758711
rowslice 79455717
rowslicepermute 234396
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27895867
sqrfrac 4195700
sqrti 6612711
sqrtnr 2810627
sqrtr 86932942
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60068766
truecoef 0
trunc_safe 0
ulogint 2087261
upr_norm 346135
uutoQ 1602144
vec_append 3468925
vec_ei 1714717
vec_lengthen 18960
vec_prepend 313934
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039392
veclast 9374243
vecmodii 0
vecmoduu 49784
vecpermute 21110908
vecreverse 697305
vecreverse_inplace 2605
vecslice 657364221
vecslicepermute 2858683
vecsmall_append 4114702
vecsmall_coincidence 0
vecsmall_concat 1464629
vecsmall_copy 7341163
vecsmall_ei 585097
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043240
vecsmall_max 1177418
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75752
vecsmall_to_col 7925112
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78756798
vecsmalltrunc_append 100782671
vecsmalltrunc_init 240790296
vecsplice 384984
vectrunc_append 15856011
vectrunc_append_batch 9667
vectrunc_init 11768548
zc_to_ZC 7910567
zero_F2m 0
zero_F2m_copy 845272
zero_F2v 3656509
zero_F2x 1181
zero_Flm 2831028
zero_Flm_copy 238308
zero_Flv 61979185
zero_Flx 3255520
zero_zm 0
zero_zv 39499135
zero_zx 0
zerocol 125155401
zeromat 108947
zeromatcopy 14378068
zeropadic 857719
zeropadic_shallow 17150
zeropol 12889200
zeroser 138992
zerovec 29348257
zerovec_block 29654
zm_copy 0
zm_row 0
zm_to_zxV 0
zm_transpose 266
znstar_get_N 38658713
znstar_get_U 176107
znstar_get_Ui 46788
znstar_get_conreycyc 7982108
znstar_get_conreygen 3290526
znstar_get_cyc 262088
znstar_get_faN 7334819
znstar_get_gen 16150
znstar_get_no 14
znstar_get_pe 2869063
zv_copy 1687889
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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