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 30617-dd5c93fb0e) Lines: 1421 1535 92.6 %
Date: 2026-01-19 09:22:13 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 8036446
F2m_copy 200425
F2m_flip 1553581
F2m_set 798
F2v_clear 12352673
F2v_coeff 661307319
F2v_copy 4487
F2v_ei 42
F2v_flip 1553581
F2v_set 101401592
F2v_to_F2x 37649
F2xX_shift 0
F2x_clear 12352668
F2x_coeff 667921887
F2x_copy 59768489
F2x_div 1557479
F2x_equal 4604337
F2x_equal1 2873955
F2x_flip 1553581
F2x_renormalize 114355830
F2x_set 124561286
F2xqX_div 33173
F3m_coeff 3255861
F3m_copy 0
F3m_set 0
Flm_copy 6433413
Flm_row 8741396
Flv_copy 2554985
Flx_constant 334004
Flx_copy 173130955
Flx_div 1997917
Flx_div_pre 21687107
Flx_equal1 8329704
Flx_lead 979197
Flx_mulu 1105305
FlxqX_div 0
FlxqX_div_pre 165415
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4693743
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581119
FpX_renormalize 144194369
Fp_add 181170839
Fp_addmul 11280365
Fp_center 77164631
Fp_center_i 18010081
Fp_div 15034178
Fp_divu 15128688
Fp_double 20956859
Fp_halve 247271
Fp_inv 23440480
Fp_invsafe 1100345
Fp_mul 200801073
Fp_muls 17780
Fp_mulu 70375685
Fp_neg 31481453
Fp_red 82193787
Fp_sqr 63912080
Fp_sub 203374066
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 571423
FqX_Fq_mul 427297
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38566
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444661
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 367704
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 3106075
Fq_to_FpXQ 73652
GENbinbase 961902742
QV_isscalar 54415992
Q_abs 8062523
Q_abs_shallow 120240
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619845
RgC_gtofp 34032767
RgC_gtomp 574
RgM_dimensions 9741989
RgM_fpnorml2 22661
RgM_gtofp 8258274
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22178820
RgV_gtofp 56
RgV_is_QV 140733
RgV_is_ZV 32158271
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210265
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406732
RgX_div 7000642
RgX_equal_var 26883013
RgX_fpnorml2 61495
RgX_gtofp 7144865
RgX_is_QX 399928
RgX_is_ZX 22423307
RgX_is_monomial 1331346
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 1450985
Rg_to_Fq 756
ZC_hnfrem 10697420
ZM_ZV_mod 596436
ZM_hnfrem 363805
ZM_lll 7117924
ZV_ZV_mod 8131430
ZV_dvd 23485
ZV_isscalar 23675492
ZV_to_zv 3211406
ZXQ_mul 2161168
ZXQ_sqr 960347
ZX_equal1 12850
ZX_is_monic 7374287
ZX_renormalize 154938944
Z_ispower 98
Z_issquare 458711
abgrp_get_cyc 12230724
abgrp_get_gen 1765033
abgrp_get_no 354948
absfrac 46638499
absfrac_shallow 28237
addmuliu 535808
addmuliu_inplace 59645115
affc_fixlg 249622
affgr 898901
bid_get_MOD 2157244
bid_get_U 3680223
bid_get_arch 41188
bid_get_archp 2397064
bid_get_cyc 5739772
bid_get_fact 2498905
bid_get_fact2 2201565
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804622
bid_get_ideal 72842
bid_get_mod 1521922
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157976
bin_copy 496051875
bit_accuracy 3155991092
bit_accuracy_mul 3175484
bit_prec 143247311
bnf_get_clgp 5375021
bnf_get_cyc 3686154
bnf_get_fu 25859
bnf_get_fu_nocheck 289073
bnf_get_gen 1680318
bnf_get_logfu 2874759
bnf_get_nf 9865163
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367776
bnf_get_tuN 282994
bnf_get_tuU 303574
bnr_get_bid 2046085
bnr_get_bnf 3710945
bnr_get_clgp 2830242
bnr_get_cyc 2522568
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399074
bnr_get_no 277488
both_odd 123974435
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975461
cgiv 102667546
checkell_i 5593298
closure_arity 371571459
closure_codestr 321689225
closure_get_code 0
closure_get_data 321664998
closure_get_dbg 13628
closure_get_frame 14158190
closure_get_oper 321679048
closure_get_text 37065
closure_is_variadic 44790551
col_ei 5924517
coltrunc_init 740250
const_col 9729685
const_vec 34472937
const_vecsmall 19705930
constant_coeff 1441129
cxcompotor 18209257
cxnorm 91197419
cxtofp 9078785
cxtoreal 337207
cyc_get_expo 2757566
cyclic_perm 99911
dbllog2r 92815518
degpol 5503491730
div_content 58503
divsBIL 8085825452
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997090
ell_get_a2 7106188
ell_get_a3 8814058
ell_get_a4 8536729
ell_get_a6 10370967
ell_get_b2 7371029
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017694
ell_get_c6 13474081
ell_get_disc 16814781
ell_get_j 2126269
ell_get_type 12498999
ell_is_inf 52324548
ellff_get_a4a6 800037
ellff_get_field 2036878
ellinf 1869531
ellnf_get_bnf 119
ellnf_get_nf 2027229
equali1 1174345937
equalim1 139505420
err_get_compo 294
err_get_num 62536
gaddgs 123248620
gal_get_den 27867
gal_get_e 91
gal_get_gen 15435
gal_get_group 80385
gal_get_invvdm 27873
gal_get_mod 23758
gal_get_orders 6678
gal_get_p 6006
gal_get_pol 36315
gal_get_roots 32731
gc_GEN 255470803
gc_INT 4110816275
gc_INT_affii 8486560
gc_all 109637329
gc_leaf 1141567335
gc_slice 2204100
gc_upto 1953357910
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 761927
gdivsg 531591
gen_I 1269730
gener_Fq_local 29945
gequalgs 29176
get_F2x_degree 1929047
get_F2x_mod 2499293
get_F2x_var 2534072
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 83633141
get_Flx_mod 25588422
get_Flx_var 68335305
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 6424270
get_FpX_mod 3394367
get_FpX_var 6957347
gisdouble 2996529
gmax_shallow 13510199
gmaxsg 0
gmin_shallow 877674
gminsg 0
gmulgs 22620709
gmulgu 282059385
gsubgs 1724815
gtodouble 60777962
gtofp 254320582
gtomp 22428
gtos 85855667
gtou 99525
guncloneNULL 47941292
guncloneNULL_deep 1443458
gval 6230
hash_str 2756815
hash_str_len 31544967
icopy_avma 8039454741
idealchineseinit 5427
idealred 138438
identity_ZV 8113
identity_perm 3241375
identity_zv 3265723
inf_get_sign 1452955
inv_content 0
is_bigint 563389333
is_const_t 4894580637
is_extscalar_t 6876
is_intreal_t 9584694
is_matvec_t 659698851
is_noncalc_t 85871829
is_pm1 2206593151
is_qfb_t 0
is_rational_t 5032524
is_real_t 62062465
is_recursive_t 9235118509
is_scalar_t 375657096
is_universal_constant 325849638
is_vec_t 43946846
isint1 17584769
isintm1 5710159
isintzero 2843349580
ismpzero 9584594
isonstack 8276608362
killblock 1923306
leading_coeff 170256523
leafcopy_avma 576765999
lg_increase 316701360
lgcols 351574860
lgpol 2688659638
lincombii 38225362
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 754835
matpascal 3983
matslice 16817530
mkcol 10639571
mkcol2 156864761
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33556
mkcols 40411
mkcomplex 91602346
mkerr 0
mkfrac 41640930
mkfraccopy 4999534
mkfracss 1209563
mkintmod 8092631
mkintmodu 1813
mkmat 4751027
mkmat2 33654442
mkmat22 50278047
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122283
mkmoo 108796
mkoo 1331901
mkpadic 2009
mkpolmod 3103726
mkqfb 27930318
mkquad 69118
mkrfrac 698438
mkrfraccopy 14
mkvec 71111746
mkvec2 185406209
mkvec2copy 114529
mkvec2s 220243
mkvec3 121973266
mkvec3s 524441
mkvec4 10093829
mkvec4s 21
mkvec5 15185658
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131574204
mkvecsmall2 234795480
mkvecsmall3 104166166
mkvecsmall4 18651731
mkvecsmall5 1717513
modpr_get_T 13867073
modpr_get_p 1887627
modpr_get_pr 31236558
mul_content 2657099
mul_denom 10707716
mulsubii 3880680
nbits2extraprec 1457337004
nbits2ndec 228
nbits2nlong 12752336
nbits2prec 186131676
nbrows 157466323
nchar2nlong 127392278
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304889
nf_get_M 21746261
nf_get_Tr 22081
nf_get_degree 71369183
nf_get_diff 4445
nf_get_disc 463476
nf_get_index 3711365
nf_get_invzk 9767470
nf_get_pol 98107053
nf_get_r1 23466740
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628954
nf_get_roundG 1748189
nf_get_sign 519549
nf_get_varn 1503753
nf_get_zk 4382
nf_get_zkden 5459864
nf_get_zkprimpart 5414032
normalize_frac 17205356
odd 2090121307
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 509469006
pari_malloc 745340777
pari_realloc 1890
pari_realloc_ip 2256701
pari_stack_alloc 1019725576
pari_stack_base 1025347587
pari_stack_delete 5622415
pari_stack_init 6052280
pari_stack_new 925064635
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781862
perm_mul 80890557
perm_sqr 728
pol0_F2x 13196430
pol0_Flx 103414882
pol1_F2x 3958082
pol1_Flx 55041132
pol_0 82996522
pol_1 3755661
pol_x 3857117
pol_xn 2249251
pol_xnall 294
polx_F2x 1073468
polx_Flx 37477453
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130364
pr_get_e 16161803
pr_get_f 26442943
pr_get_gen 12070934
pr_get_p 92749966
pr_get_tau 49768122
pr_is_inert 17223945
pr_norm 1090486
prec2lg 4469023833
prec2nbits 103958997
prec2nbits_mul 581167
prec2ndec 9778
precdbl 475373
qfb_disc 18502521
qfb_disc3 4996100
qfb_is_qfi 62331021
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 7994939481
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 763895
row_i 987
rowcopy 204988
rowpermute 14705142
rowslice 79304638
rowslicepermute 185114
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27631937
sqrfrac 4148152
sqrti 6610118
sqrtnr 2810232
sqrtr 80369212
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60142692
truecoef 0
trunc_safe 0
ulogint 1729640
upr_norm 346135
uutoQ 1600198
vec_append 3465012
vec_ei 1713801
vec_lengthen 18960
vec_prepend 314006
vec_setconst 0
vec_shorten 11556
vec_to_vecsmall 4036609
veclast 9372708
vecmodii 0
vecmoduu 49784
vecpermute 20548364
vecreverse 697277
vecreverse_inplace 2605
vecslice 656033641
vecslicepermute 2690635
vecsmall_append 4099595
vecsmall_coincidence 0
vecsmall_concat 1464210
vecsmall_copy 4403846
vecsmall_ei 584713
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043178
vecsmall_max 1164129
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75639
vecsmall_to_col 7838859
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78695330
vecsmalltrunc_append 100708292
vecsmalltrunc_init 189975573
vecsplice 384913
vectrunc_append 15851269
vectrunc_append_batch 9667
vectrunc_init 11767820
zc_to_ZC 7824677
zero_F2m 0
zero_F2m_copy 845011
zero_F2v 3647537
zero_F2x 1350
zero_Flm 2829344
zero_Flm_copy 238234
zero_Flv 59660271
zero_Flx 1426774
zero_zm 0
zero_zv 36721159
zero_zx 0
zerocol 122335094
zeromat 109073
zeromatcopy 14250493
zeropadic 855739
zeropadic_shallow 17024
zeropol 42353924
zeroser 138908
zerovec 28453542
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 2183744
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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