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 30604-e5d817ee12) Lines: 1420 1535 92.5 %
Date: 2026-01-08 09:21:40 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 8038326
F2m_copy 200478
F2m_flip 1554050
F2m_set 798
F2v_clear 12353682
F2v_coeff 661316627
F2v_copy 4487
F2v_ei 42
F2v_flip 1554050
F2v_set 101403241
F2v_to_F2x 37813
F2xX_shift 0
F2x_clear 12353683
F2x_coeff 667990238
F2x_copy 60440056
F2x_div 1569800
F2x_equal 4659735
F2x_equal1 2874185
F2x_flip 1554050
F2x_renormalize 115272256
F2x_set 124798658
F2xqX_div 33173
F3m_coeff 3255869
F3m_copy 0
F3m_set 0
Flm_copy 6433444
Flm_row 8740892
Flv_copy 2555071
Flx_constant 333954
Flx_copy 173179083
Flx_div 1997992
Flx_div_pre 21687452
Flx_equal1 8329972
Flx_lead 979227
Flx_mulu 1105402
FlxqX_div 0
FlxqX_div_pre 165414
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694460
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581170
FpX_renormalize 144209415
Fp_add 181098430
Fp_addmul 11265912
Fp_center 77160697
Fp_center_i 18016648
Fp_div 15035468
Fp_divu 15129930
Fp_double 20876050
Fp_halve 247271
Fp_inv 23440695
Fp_invsafe 1100354
Fp_mul 200791146
Fp_muls 17780
Fp_mulu 69523240
Fp_neg 31483994
Fp_red 82190704
Fp_sqr 63551021
Fp_sub 202579115
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 571431
FqX_Fq_mul 427297
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 444664
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 367701
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 3106168
Fq_to_FpXQ 73652
GENbinbase 961901170
QV_isscalar 54415551
Q_abs 8062616
Q_abs_shallow 120242
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619848
RgC_gtofp 34030552
RgC_gtomp 574
RgM_dimensions 9741651
RgM_fpnorml2 22662
RgM_gtofp 8257569
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22178514
RgV_gtofp 56
RgV_is_QV 140732
RgV_is_ZV 32158278
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210271
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406753
RgX_div 7000642
RgX_equal_var 26883021
RgX_fpnorml2 61495
RgX_gtofp 7145015
RgX_is_QX 399935
RgX_is_ZX 22423128
RgX_is_monomial 1331284
RgX_is_rational 68165
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479366
RgX_shift_inplace_init 479366
RgX_to_RgV 140
Rg_col_ei 1451012
Rg_to_Fq 756
ZC_hnfrem 10697357
ZM_ZV_mod 596480
ZM_hnfrem 363772
ZM_lll 7117501
ZV_ZV_mod 8131502
ZV_dvd 23485
ZV_isscalar 23675231
ZV_to_zv 3211407
ZXQ_mul 2161271
ZXQ_sqr 960434
ZX_equal1 12850
ZX_is_monic 7374299
ZX_renormalize 154978655
Z_ispower 98
Z_issquare 458706
abgrp_get_cyc 12230744
abgrp_get_gen 1765032
abgrp_get_no 354939
absfrac 46638656
absfrac_shallow 28237
addmuliu 535861
addmuliu_inplace 59638122
affc_fixlg 249622
affgr 898866
bid_get_MOD 2157241
bid_get_U 3680215
bid_get_arch 41188
bid_get_archp 2397100
bid_get_cyc 5739808
bid_get_fact 2498918
bid_get_fact2 2201563
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804659
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157962
bin_copy 496057267
bit_accuracy 3160002506
bit_accuracy_mul 3175472
bit_prec 143258160
bnf_get_clgp 5375018
bnf_get_cyc 3686151
bnf_get_fu 25859
bnf_get_fu_nocheck 289081
bnf_get_gen 1680317
bnf_get_logfu 2874740
bnf_get_nf 9865150
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367773
bnf_get_tuN 282996
bnf_get_tuU 303578
bnr_get_bid 2046085
bnr_get_bnf 3710943
bnr_get_clgp 2830232
bnr_get_cyc 2522555
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399071
bnr_get_no 277487
both_odd 123865071
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975458
cgiv 102680933
checkell_i 5593324
closure_arity 371473626
closure_codestr 321615773
closure_get_code 0
closure_get_data 321579595
closure_get_dbg 13628
closure_get_frame 14158040
closure_get_oper 321598573
closure_get_text 37065
closure_is_variadic 44789619
col_ei 5924469
coltrunc_init 740250
const_col 9729653
const_vec 34478890
const_vecsmall 19705687
constant_coeff 1441134
cxcompotor 18211846
cxnorm 91200078
cxtofp 9080008
cxtoreal 337204
cyc_get_expo 2757540
cyclic_perm 99911
dbllog2r 92817727
degpol 5502682328
div_content 58503
divsBIL 8092134291
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997101
ell_get_a2 7106194
ell_get_a3 8814069
ell_get_a4 8536735
ell_get_a6 10370973
ell_get_b2 7371038
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017686
ell_get_c6 13474101
ell_get_disc 16814585
ell_get_j 2126269
ell_get_type 12499121
ell_is_inf 52332158
ellff_get_a4a6 800048
ellff_get_field 2036901
ellinf 1870005
ellnf_get_bnf 119
ellnf_get_nf 2027230
equali1 1174350577
equalim1 139504969
err_get_compo 294
err_get_num 62537
gaddgs 123248633
gal_get_den 27867
gal_get_e 91
gal_get_gen 15435
gal_get_group 80388
gal_get_invvdm 27874
gal_get_mod 23758
gal_get_orders 6678
gal_get_p 6006
gal_get_pol 36316
gal_get_roots 32732
gc_GEN 255416424
gc_INT 4111473555
gc_INT_affii 8488006
gc_all 109636386
gc_leaf 1140606705
gc_slice 2204279
gc_upto 1953589943
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 761919
gdivsg 531590
gen_I 1269706
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1929158
get_F2x_mod 2499297
get_F2x_var 2534137
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 83254944
get_Flx_mod 25594966
get_Flx_var 68350926
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 6424419
get_FpX_mod 3394389
get_FpX_var 6957904
gisdouble 2996140
gmax_shallow 13510198
gmaxsg 0
gmin_shallow 877667
gminsg 0
gmulgs 22614154
gmulgu 282059385
gsubgs 1724810
gtodouble 60782615
gtofp 254317261
gtomp 22428
gtos 85855707
gtou 99539
guncloneNULL 47932925
guncloneNULL_deep 1436455
gval 6230
hash_str 2756815
hash_str_len 31544956
icopy_avma 8040302531
idealchineseinit 5427
idealred 138441
identity_ZV 8113
identity_perm 3241499
identity_zv 3265850
inf_get_sign 1452875
inv_content 0
is_bigint 563403833
is_const_t 4897127502
is_extscalar_t 6876
is_intreal_t 9584605
is_matvec_t 659539394
is_noncalc_t 85870561
is_pm1 2205914313
is_qfb_t 0
is_rational_t 5032483
is_real_t 62062469
is_recursive_t 9234929408
is_scalar_t 375657295
is_universal_constant 325919477
is_vec_t 43948664
isint1 17584884
isintm1 5710248
isintzero 2844136139
ismpzero 9584506
isonstack 8276341179
killblock 1919700
leading_coeff 170260890
leafcopy_avma 577182967
lg_increase 318326014
lgcols 351584393
lgpol 2692497986
lincombii 38221935
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 754831
matpascal 3983
matslice 16817877
mkcol 10639694
mkcol2 156874750
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33552
mkcols 40411
mkcomplex 91615780
mkerr 0
mkfrac 41641799
mkfraccopy 4999733
mkfracss 1209563
mkintmod 8092786
mkintmodu 1813
mkmat 4750856
mkmat2 33654119
mkmat22 50281284
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122275
mkmoo 108792
mkoo 1331836
mkpadic 2009
mkpolmod 3103726
mkqfb 27929549
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71113257
mkvec2 185366019
mkvec2copy 114528
mkvec2s 220251
mkvec3 120795310
mkvec3s 524441
mkvec4 10093870
mkvec4s 21
mkvec5 15185629
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131655908
mkvecsmall2 234830009
mkvecsmall3 104174907
mkvecsmall4 18659649
mkvecsmall5 1717519
modpr_get_T 13867122
modpr_get_p 1887627
modpr_get_pr 31236604
mul_content 2657139
mul_denom 10707443
mulsubii 3881830
nbits2extraprec 1457984812
nbits2ndec 228
nbits2nlong 12754274
nbits2prec 186134446
nbrows 157462435
nchar2nlong 127390627
ndec2nbits 8270
ndec2nlong 41549
ndec2prec 33279
nfV_to_scalar_or_alg 26300
nf_get_G 304877
nf_get_M 21745952
nf_get_Tr 22082
nf_get_degree 71368981
nf_get_diff 4445
nf_get_disc 463478
nf_get_index 3711380
nf_get_invzk 9767320
nf_get_pol 98106187
nf_get_r1 23466370
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628940
nf_get_roundG 1748192
nf_get_sign 519553
nf_get_varn 1503553
nf_get_zk 4382
nf_get_zkden 5459697
nf_get_zkprimpart 5413911
normalize_frac 17205412
odd 2089167516
pari_calloc 47720
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 84
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 509458965
pari_malloc 745357573
pari_realloc 1890
pari_realloc_ip 2255045
pari_stack_alloc 1019676662
pari_stack_base 1025198493
pari_stack_delete 5584341
pari_stack_init 6051735
pari_stack_new 924991458
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781792
perm_mul 80885310
perm_sqr 728
pol0_F2x 13249393
pol0_Flx 103493607
pol1_F2x 3958747
pol1_Flx 55055917
pol_0 82996639
pol_1 3755711
pol_x 3856875
pol_xn 2249295
pol_xnall 294
polx_F2x 1078000
polx_Flx 37483372
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130318
pr_get_e 16161621
pr_get_f 26442527
pr_get_gen 12070943
pr_get_p 92749322
pr_get_tau 49767545
pr_is_inert 17223718
pr_norm 1090468
prec2lg 4468667112
prec2nbits 103964681
prec2nbits_mul 581164
prec2ndec 9778
precdbl 475382
qfb_disc 18502536
qfb_disc3 4995713
qfb_is_qfi 62323785
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8001373447
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 763884
row_i 987
rowcopy 204988
rowpermute 14704867
rowslice 79293841
rowslicepermute 185051
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27631309
sqrfrac 4148120
sqrti 6610130
sqrtnr 2810139
sqrtr 80374760
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60128554
truecoef 0
trunc_safe 0
ulogint 1718960
upr_norm 346136
uutoQ 1600198
vec_append 3465066
vec_ei 1713855
vec_lengthen 18960
vec_prepend 314006
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036628
veclast 9372726
vecmodii 0
vecmoduu 49784
vecpermute 20547451
vecreverse 697277
vecreverse_inplace 2605
vecslice 655787448
vecslicepermute 2690323
vecsmall_append 4099601
vecsmall_coincidence 0
vecsmall_concat 1464143
vecsmall_copy 4403964
vecsmall_ei 584688
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1164079
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75642
vecsmall_to_col 7838648
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78690040
vecsmalltrunc_append 100836182
vecsmalltrunc_init 189985282
vecsplice 384923
vectrunc_append 15851610
vectrunc_append_batch 9667
vectrunc_init 11767055
zc_to_ZC 7824467
zero_F2m 0
zero_F2m_copy 845053
zero_F2v 3647737
zero_F2x 1350
zero_Flm 2829446
zero_Flm_copy 238230
zero_Flv 59674843
zero_Flx 1427109
zero_zm 0
zero_zv 36733991
zero_zx 0
zerocol 122327956
zeromat 109102
zeromatcopy 14249374
zeropadic 855738
zeropadic_shallow 17023
zeropol 42353960
zeroser 138908
zerovec 28453530
zerovec_block 29654
zm_copy 0
zm_row 0
zm_to_zxV 0
zm_transpose 266
znstar_get_N 38655073
znstar_get_U 176107
znstar_get_Ui 46788
znstar_get_conreycyc 7979693
znstar_get_conreygen 3290176
znstar_get_cyc 262088
znstar_get_faN 7331711
znstar_get_gen 16150
znstar_get_no 14
znstar_get_pe 2869063
zv_copy 2183813
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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