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 30672-116f3d5b0e) Lines: 1421 1535 92.6 %
Date: 2026-02-07 09:23:42 Functions: 649 707 91.8 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
F2m_clear 0
F2m_coeff 8038651
F2m_copy 200440
F2m_flip 1554224
F2m_set 798
F2v_clear 12353892
F2v_coeff 661321073
F2v_copy 4487
F2v_ei 42
F2v_flip 1554224
F2v_set 101403520
F2v_to_F2x 37879
F2xX_shift 0
F2x_clear 12353894
F2x_coeff 667812128
F2x_copy 60574008
F2x_div 1570493
F2x_equal 4669577
F2x_equal1 2874065
F2x_flip 1554224
F2x_renormalize 115408612
F2x_set 124735408
F2xqX_div 33173
F3m_coeff 3255861
F3m_copy 0
F3m_set 0
Flm_copy 6433673
Flm_row 8741753
Flv_copy 2555028
Flx_constant 334016
Flx_copy 173220249
Flx_div 1997987
Flx_div_pre 21691676
Flx_equal1 8329935
Flx_lead 979531
Flx_mulu 1105446
FlxqX_div 0
FlxqX_div_pre 165408
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694397
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849903
FpXY_Fq_evaly 20587
FpX_div 5581187
FpX_renormalize 144222344
Fp_add 181007982
Fp_addmul 11241439
Fp_center 77375471
Fp_center_i 18050814
Fp_div 15035760
Fp_divu 15130189
Fp_double 20817096
Fp_halve 247271
Fp_inv 23440777
Fp_invsafe 1100342
Fp_mul 200805241
Fp_muls 17780
Fp_mulu 66024791
Fp_neg 31475702
Fp_red 82193845
Fp_sqr 63571970
Fp_sub 202738712
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 571643
FqX_Fq_mul 427290
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38567
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444765
FqX_factor 140946
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 367709
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 3106676
Fq_to_FpXQ 73652
GENbinbase 961779189
QV_isscalar 54415393
Q_abs 8062688
Q_abs_shallow 120223
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619850
RgC_gtofp 34030995
RgC_gtomp 574
RgM_dimensions 9741711
RgM_fpnorml2 22662
RgM_gtofp 8258069
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179440
RgV_gtofp 56
RgV_is_QV 140736
RgV_is_ZV 32160187
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210270
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406726
RgX_div 7000642
RgX_equal_var 26883019
RgX_fpnorml2 61601
RgX_gtofp 7145464
RgX_is_QX 399924
RgX_is_ZX 22423261
RgX_is_monomial 1331367
RgX_is_rational 68164
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479367
RgX_shift_inplace_init 479367
RgX_to_RgV 140
Rg_col_ei 1451019
Rg_to_Fq 756
ZC_hnfrem 10697388
ZM_ZV_mod 596642
ZM_hnfrem 363796
ZM_lll 7117781
ZV_ZV_mod 8131892
ZV_dvd 23485
ZV_isscalar 23675166
ZV_to_zv 3211712
ZXQ_mul 2160988
ZXQ_sqr 960262
ZX_equal1 12850
ZX_is_monic 7374227
ZX_renormalize 155034421
Z_ispower 98
Z_issquare 457641
abgrp_get_cyc 12230813
abgrp_get_gen 1765027
abgrp_get_no 354949
absfrac 46540111
absfrac_shallow 28237
addmuliu 535682
addmuliu_inplace 59716299
affc_fixlg 249623
affgr 899594
bid_get_MOD 2157248
bid_get_U 3680226
bid_get_arch 41187
bid_get_archp 2397121
bid_get_cyc 5739832
bid_get_fact 2498949
bid_get_fact2 2201576
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804686
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157975
bin_copy 495996377
bit_accuracy 3160455724
bit_accuracy_mul 3175484
bit_prec 143245731
bnf_get_clgp 5375002
bnf_get_cyc 3686147
bnf_get_fu 25859
bnf_get_fu_nocheck 289093
bnf_get_gen 1680316
bnf_get_logfu 2874765
bnf_get_nf 9865170
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367775
bnf_get_tuN 282994
bnf_get_tuU 303575
bnr_get_bid 2046100
bnr_get_bnf 3710950
bnr_get_clgp 2830245
bnr_get_cyc 2522571
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399069
bnr_get_no 277488
both_odd 124106539
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975459
cgiv 102681620
checkell_i 5593227
closure_arity 372516661
closure_codestr 322100510
closure_get_code 0
closure_get_data 322062808
closure_get_dbg 13635
closure_get_frame 14716968
closure_get_oper 322079938
closure_get_text 37079
closure_is_variadic 45906154
col_ei 5924577
coltrunc_init 740250
const_col 9729694
const_vec 34567753
const_vecsmall 19707078
constant_coeff 1441425
cxcompotor 18210130
cxnorm 91200508
cxtofp 9079111
cxtoreal 337206
cyc_get_expo 2757550
cyclic_perm 99911
dbllog2r 92817071
degpol 5483740260
div_content 58504
divsBIL 8094529052
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997073
ell_get_a2 7106174
ell_get_a3 8814041
ell_get_a4 8536715
ell_get_a6 10370953
ell_get_b2 7371029
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017895
ell_get_c6 13474298
ell_get_disc 16814910
ell_get_j 2126269
ell_get_type 12498816
ell_is_inf 52403750
ellff_get_a4a6 800019
ellff_get_field 2036832
ellinf 1869960
ellnf_get_bnf 119
ellnf_get_nf 2027265
equali1 1174096487
equalim1 139505573
err_get_compo 294
err_get_num 62551
gaddgs 123248647
gal_get_den 27867
gal_get_e 91
gal_get_gen 15435
gal_get_group 80387
gal_get_invvdm 27874
gal_get_mod 23758
gal_get_orders 6678
gal_get_p 6006
gal_get_pol 36315
gal_get_roots 32731
gc_GEN 255472165
gc_INT 4113206081
gc_INT_affii 8486824
gc_all 109639307
gc_leaf 1134064247
gc_slice 2204395
gc_upto 1955373294
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 761915
gdivsg 531592
gen_I 1269717
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928887
get_F2x_mod 2499283
get_F2x_var 2533856
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 81524451
get_Flx_mod 25596435
get_Flx_var 68359552
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 6424423
get_FpX_mod 3394326
get_FpX_var 6958154
gisdouble 2995834
gmax_shallow 13510200
gmaxsg 0
gmin_shallow 877779
gminsg 0
gmulgs 22562819
gmulgu 283104681
gsubgs 1724808
gtodouble 60786042
gtofp 254339419
gtomp 22428
gtos 85855682
gtou 100695
guncloneNULL 48007888
guncloneNULL_deep 1493011
gval 6230
hash_str 2760615
hash_str_len 31631717
icopy_avma 8041825351
idealchineseinit 5427
idealred 138438
identity_ZV 8113
identity_perm 3242039
identity_zv 3266388
inf_get_sign 1452957
inv_content 0
is_bigint 563370805
is_const_t 4900467898
is_extscalar_t 6876
is_intreal_t 9584589
is_matvec_t 659525240
is_noncalc_t 85871622
is_pm1 2204268905
is_qfb_t 0
is_rational_t 5032605
is_real_t 62062524
is_recursive_t 9238407408
is_scalar_t 375659204
is_universal_constant 326523758
is_vec_t 43965592
isint1 17586417
isintm1 5710343
isintzero 2845036467
ismpzero 9584482
isonstack 8274538586
killblock 1949876
leading_coeff 170223934
leafcopy_avma 577132906
lg_increase 317807828
lgcols 351650094
lgpol 2683794714
lincombii 38222183
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 754834
matpascal 3983
matslice 16824938
mkcol 10639714
mkcol2 156927092
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33554
mkcols 40411
mkcomplex 91609694
mkerr 0
mkfrac 41641666
mkfraccopy 4999896
mkfracss 1209563
mkintmod 8092554
mkintmodu 1813
mkmat 4750933
mkmat2 33654587
mkmat22 50293122
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122264
mkmoo 108796
mkoo 1331899
mkpadic 2009
mkpolmod 3103714
mkqfb 27930159
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71284934
mkvec2 185385413
mkvec2copy 114528
mkvec2s 220249
mkvec3 115763769
mkvec3s 524441
mkvec4 10094852
mkvec4s 21
mkvec5 15185932
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131632477
mkvecsmall2 234978738
mkvecsmall3 104187535
mkvecsmall4 18688480
mkvecsmall5 1717499
modpr_get_T 13867129
modpr_get_p 1887625
modpr_get_pr 31236583
mul_content 2657295
mul_denom 10707574
mulsubii 3881553
nbits2extraprec 1458250994
nbits2ndec 228
nbits2nlong 12751034
nbits2prec 186125338
nbrows 157467276
nchar2nlong 127558440
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26299
nf_get_G 304862
nf_get_M 21745913
nf_get_Tr 22084
nf_get_degree 71369156
nf_get_diff 4445
nf_get_disc 463482
nf_get_index 3711391
nf_get_invzk 9767474
nf_get_pol 98108583
nf_get_r1 23466361
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628930
nf_get_roundG 1748174
nf_get_sign 519551
nf_get_varn 1503789
nf_get_zk 4382
nf_get_zkden 5459826
nf_get_zkprimpart 5414042
normalize_frac 17206655
odd 2091319834
pari_calloc 47734
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
pari_err_DIM 718
pari_err_DOMAIN 2862
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 245
pari_err_ROOTS0 63
pari_err_SQRTN 7084
pari_err_TYPE 15370
pari_err_TYPE2 3493
pari_err_VAR 371
pari_free 509479507
pari_malloc 745414589
pari_realloc 1890
pari_realloc_ip 2350001
pari_stack_alloc 1022150822
pari_stack_base 1027937989
pari_stack_delete 5817249
pari_stack_init 6353159
pari_stack_new 926867586
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781995
perm_mul 80918373
perm_sqr 728
pol0_F2x 13243513
pol0_Flx 103469819
pol1_F2x 3956430
pol1_Flx 55059445
pol_0 82789208
pol_1 3755650
pol_x 3857390
pol_xn 2249251
pol_xnall 294
polx_F2x 1078230
polx_Flx 37487195
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130407
pr_get_e 16161915
pr_get_f 26442701
pr_get_gen 12071116
pr_get_p 92749905
pr_get_tau 49767999
pr_is_inert 17223967
pr_norm 1090481
prec2lg 4470221467
prec2nbits 103966243
prec2nbits_mul 581163
prec2ndec 9778
precdbl 475401
qfb_disc 18502531
qfb_disc3 4996008
qfb_is_qfi 62320155
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8003239011
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 763891
row_i 987
rowcopy 204988
rowpermute 14706461
rowslice 79350858
rowslicepermute 184966
rowsplice 273
ser_isexactzero 10120326
shallowcopy 27631875
sqrfrac 4148339
sqrti 6610253
sqrtnr 2810171
sqrtr 80375425
sstoQ 1097313
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60207756
truecoef 0
trunc_safe 0
ulogint 1724253
upr_norm 346134
uutoQ 1602144
vec_append 3464599
vec_ei 1713829
vec_lengthen 18960
vec_prepend 314003
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036928
veclast 9372697
vecmodii 0
vecmoduu 49784
vecpermute 20548571
vecreverse 697305
vecreverse_inplace 2605
vecslice 656497704
vecslicepermute 2691069
vecsmall_append 4114708
vecsmall_coincidence 0
vecsmall_concat 1464283
vecsmall_copy 4403778
vecsmall_ei 584736
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043226
vecsmall_max 1164230
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75641
vecsmall_to_col 7838544
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78723013
vecsmalltrunc_append 100855427
vecsmalltrunc_init 190134385
vecsplice 384930
vectrunc_append 15854101
vectrunc_append_batch 9667
vectrunc_init 11766355
zc_to_ZC 7824363
zero_F2m 0
zero_F2m_copy 845042
zero_F2v 3647735
zero_F2x 1350
zero_Flm 2830386
zero_Flm_copy 238230
zero_Flv 59671807
zero_Flx 1426765
zero_zm 0
zero_zv 36734886
zero_zx 0
zerocol 122332183
zeromat 109102
zeromatcopy 14250047
zeropadic 855646
zeropadic_shallow 17023
zeropol 42354001
zeroser 138943
zerovec 29292055
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 2183769
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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