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 30773-2078653b96) Lines: 1423 1535 92.7 %
Date: 2026-04-01 09:27:34 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 8363284
F2m_copy 200675
F2m_flip 1554262
F2m_set 798
F2v_clear 12362047
F2v_coeff 664443102
F2v_copy 4487
F2v_ei 42
F2v_flip 1554262
F2v_set 104116063
F2v_to_F2x 38000
F2xX_shift 0
F2x_clear 12362036
F2x_coeff 670955964
F2x_copy 64590029
F2x_div 1570612
F2x_equal 4189828
F2x_equal1 2873655
F2x_flip 1554262
F2x_renormalize 127896821
F2x_set 129972006
F2xqX_div 33173
F3m_coeff 3255558
F3m_copy 0
F3m_set 0
Flm_copy 6434545
Flm_row 8743487
Flv_copy 2059094
Flx_constant 1091595
Flx_copy 175816842
Flx_div 1999758
Flx_div_pre 21709210
Flx_equal1 8196110
Flx_lead 1069110
Flx_mulu 1105412
FlxqX_div 0
FlxqX_div_pre 165415
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4692736
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5582005
FpX_renormalize 147024103
Fp_add 183094095
Fp_addmul 11175615
Fp_center 77302575
Fp_center_i 18039569
Fp_div 15033169
Fp_divu 15127496
Fp_double 20645657
Fp_halve 247271
Fp_inv 23435753
Fp_invsafe 1097238
Fp_mul 202985438
Fp_muls 17780
Fp_mulu 66265867
Fp_neg 32666524
Fp_red 82934740
Fp_sqr 63308761
Fp_sub 200769416
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 572194
FqX_Fq_mul 427292
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38565
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 445024
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 367935
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 3106306
Fq_to_FpXQ 73652
GENbinbase 919010412
QV_isscalar 54420466
Q_abs 8060929
Q_abs_shallow 120234
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619940
RgC_gtofp 34033319
RgC_gtomp 574
RgM_dimensions 9955402
RgM_fpnorml2 22655
RgM_gtofp 8257504
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22235479
RgV_gtofp 56
RgV_is_QV 142000
RgV_is_ZV 32095978
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1210270
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2889731
RgX_copy 102487129
RgX_div 6997261
RgX_equal_var 26880506
RgX_fpnorml2 61607
RgX_gtofp 7163841
RgX_is_QX 399945
RgX_is_ZX 22315801
RgX_is_monomial 1320022
RgX_is_rational 68157
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
RgX_to_RgV 140
Rg_col_ei 1451150
Rg_to_Fq 756
ZC_hnfrem 10697660
ZM_ZV_mod 610738
ZM_hnfrem 401406
ZM_lll 7117596
ZV_ZV_mod 8147256
ZV_dvd 23485
ZV_isscalar 23675117
ZV_to_zv 3211715
ZXQ_mul 2166291
ZXQ_sqr 960614
ZX_equal1 10488
ZX_is_monic 7319890
ZX_renormalize 157480504
Z_ispower 98
Z_issquare 509452
abgrp_get_cyc 12231225
abgrp_get_gen 1765041
abgrp_get_no 406728
absfrac 46991165
absfrac_shallow 28237
addmuliu 541545
addmuliu_inplace 59561346
affc_fixlg 249620
affgr 899594
bid_get_MOD 2157247
bid_get_U 3680228
bid_get_arch 41188
bid_get_archp 2397092
bid_get_cyc 5739794
bid_get_fact 2498928
bid_get_fact2 2201570
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804647
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157976
bin_copy 472884195
bit_accuracy 3145204449
bit_accuracy_mul 3175715
bit_prec 143399624
bnf_get_clgp 5375491
bnf_get_cyc 3686618
bnf_get_fu 25859
bnf_get_fu_nocheck 289092
bnf_get_gen 1680329
bnf_get_logfu 2874765
bnf_get_nf 9866315
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367777
bnf_get_tuN 282998
bnf_get_tuU 303584
bnr_get_bid 2046090
bnr_get_bnf 3710945
bnr_get_clgp 2830236
bnr_get_cyc 2522565
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77118
bnr_get_nf 1399068
bnr_get_no 277484
both_odd 124091883
cbrtr 0
cbrtr_abs 0
cgetalloc 10136
cgetc 975460
cgiv 105482717
checkell_i 8104011
closure_arity 356327853
closure_codestr 305884296
closure_get_code 28
closure_get_data 305851318
closure_get_dbg 13660
closure_get_frame 14734988
closure_get_oper 305869868
closure_get_text 37150
closure_is_variadic 45931060
col_ei 5925311
coltrunc_init 740257
const_col 9730067
const_vec 34675769
const_vecsmall 18861094
constant_coeff 1441262
cxcompotor 18238178
cxnorm 94100085
cxtofp 9093185
cxtoreal 337207
cyc_get_expo 2757544
cyclic_perm 99932
dbllog2r 94329988
degpol 5522748607
div_content 58510
divsBIL 8242072735
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 17049173
ell_get_a2 11108719
ell_get_a3 12863740
ell_get_a4 10325137
ell_get_a6 10371097
ell_get_b2 7371388
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11018781
ell_get_c6 13474468
ell_get_disc 16816015
ell_get_j 2126269
ell_get_type 14946191
ell_is_inf 50183612
ellff_get_a4a6 551440
ellff_get_field 1790560
ellinf 913916
ellnf_get_bnf 119
ellnf_get_nf 2027249
equali1 1169325226
equalim1 139567880
err_get_compo 294
err_get_num 62595
gaddgs 123270504
gal_get_den 27866
gal_get_e 91
gal_get_gen 15491
gal_get_group 80415
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 246764245
gc_INT 4133871180
gc_INT_affii 11573848
gc_all 102551783
gc_leaf 1163105152
gc_slice 2211094
gc_upto 1971514187
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 761926
gdivsg 559710
gen_I 1268864
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928485
get_F2x_mod 3307609
get_F2x_var 2168591
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82644131
get_Flx_mod 25500692
get_Flx_var 68248608
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 6969254
get_FpX_mod 3387846
get_FpX_var 6952124
gisdouble 2995892
gmax_shallow 13510226
gmaxsg 0
gmin_shallow 898155
gminsg 0
gmulgs 23875795
gmulgu 283360013
gsubgs 1731943
gtodouble 66248352
gtofp 257182627
gtomp 22428
gtos 85865512
gtou 100711
guncloneNULL 49831439
guncloneNULL_deep 1510960
gval 6230
hash_str 2757673
hash_str_len 31655962
icopy_avma 8049956589
idealchineseinit 5427
idealred 138811
identity_ZV 8120
identity_perm 3243409
identity_zv 3267772
inf_get_sign 1453190
inv_content 0
is_bigint 574382688
is_const_t 5003315160
is_extscalar_t 6904
is_intreal_t 9702801
is_matvec_t 742711265
is_noncalc_t 88514652
is_pm1 2216723941
is_qfb_t 0
is_rational_t 5017656
is_real_t 61900630
is_recursive_t 9105032110
is_scalar_t 403471353
is_universal_constant 326641398
is_vec_t 43949339
isint1 17987161
isintm1 6086519
isintzero 2848734914
ismpzero 9702704
isonstack 8357722896
killblock 1958251
leading_coeff 169336960
leafcopy_avma 592882335
lg_increase 441303860
lgcols 352680381
lgpol 2627179623
lincombii 38267434
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 755014
matpascal 4683
matslice 16824723
mkcol 10653377
mkcol2 156953330
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33580
mkcols 40411
mkcomplex 92009602
mkerr 0
mkfrac 41927780
mkfraccopy 4999386
mkfracss 1209563
mkintmod 8066529
mkintmodu 1834
mkmat 4780348
mkmat2 33666295
mkmat22 50255591
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122312
mkmoo 108903
mkoo 1332043
mkpadic 2009
mkpolmod 3075564
mkqfb 27928245
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 69343987
mkvec2 214246861
mkvec2copy 114529
mkvec2s 220731
mkvec3 121149890
mkvec3s 524441
mkvec4 10150160
mkvec4s 21
mkvec5 15187596
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140272925
mkvecsmall2 256971060
mkvecsmall3 103263339
mkvecsmall4 18667492
mkvecsmall5 1718681
modpr_get_T 13867050
modpr_get_p 1887627
modpr_get_pr 31236527
mul_content 2657454
mul_denom 10709838
mulsubii 3892769
nbits2extraprec 1497971767
nbits2ndec 228
nbits2nlong 12750126
nbits2prec 189011469
nbrows 158273876
nchar2nlong 127922140
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304800
nf_get_M 21745614
nf_get_Tr 23280
nf_get_degree 71376878
nf_get_diff 4445
nf_get_disc 463519
nf_get_index 3712036
nf_get_invzk 9774934
nf_get_pol 98120666
nf_get_r1 23466120
nf_get_r2 4154
nf_get_ramified_primes 64643
nf_get_roots 1628857
nf_get_roundG 1748480
nf_get_sign 519601
nf_get_varn 1503783
nf_get_zk 4382
nf_get_zkden 5462216
nf_get_zkprimpart 5416403
normalize_frac 17311154
odd 2124519239
pari_calloc 47770
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 487249305
pari_malloc 723346885
pari_realloc 1880
pari_realloc_ip 2359200
pari_stack_alloc 1006212282
pari_stack_base 1012053452
pari_stack_delete 5893755
pari_stack_init 6379008
pari_stack_new 910889168
pari_stack_pushp 5821
perm_conj 418299
perm_inv 3747429
perm_mul 80957249
perm_sqr 728
pol0_F2x 17347881
pol0_Flx 111630643
pol1_F2x 4767880
pol1_Flx 55729232
pol_0 27123673
pol_1 3752521
pol_x 3860428
pol_xn 2252851
pol_xnall 294
polx_F2x 1078888
polx_Flx 37500012
polx_zx 0
polxn_Flx 371
powIs 596435
powii 43129970
pr_get_e 16166978
pr_get_f 26444234
pr_get_gen 12072452
pr_get_p 92760672
pr_get_tau 49773670
pr_is_inert 17224267
pr_norm 1090531
prec2lg 4563029410
prec2nbits 106947355
prec2nbits_mul 581097
prec2ndec 9778
precdbl 476361
qfb_disc 18502545
qfb_disc3 4995073
qfb_is_qfi 64538840
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8150654678
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 763880
row_i 987
rowcopy 204988
rowpermute 14759158
rowslice 79460542
rowslicepermute 234612
rowsplice 273
ser_isexactzero 11434254
shallowcopy 27896886
sqrfrac 4151030
sqrti 6612715
sqrtnr 2810654
sqrtr 86935702
sstoQ 1097313
sturm 385
submulii 31985063
submuliu 7700
submuliu_inplace 60065257
truecoef 0
trunc_safe 0
ulogint 2090591
upr_norm 346134
uutoQ 1602144
vec_append 3468925
vec_ei 1714712
vec_lengthen 18960
vec_prepend 313924
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4039429
veclast 9374224
vecmodii 0
vecmoduu 49784
vecpermute 21112024
vecreverse 697305
vecreverse_inplace 2605
vecslice 657318470
vecslicepermute 2859213
vecsmall_append 4114732
vecsmall_coincidence 0
vecsmall_concat 1464664
vecsmall_copy 7341143
vecsmall_ei 585094
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1177265
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75753
vecsmall_to_col 7925308
vecsmall_to_vec 578043
vecsmall_to_vec_inplace 3304
vecsmallpermute 78760936
vecsmalltrunc_append 100811779
vecsmalltrunc_init 241920874
vecsplice 385003
vectrunc_append 15858225
vectrunc_append_batch 9667
vectrunc_init 11767709
zc_to_ZC 7910764
zero_F2m 0
zero_F2m_copy 845299
zero_F2v 3656727
zero_F2x 1181
zero_Flm 2831175
zero_Flm_copy 238315
zero_Flv 61987341
zero_Flx 3255585
zero_zm 0
zero_zv 39508902
zero_zx 0
zerocol 125155447
zeromat 108981
zeromatcopy 14377632
zeropadic 857698
zeropadic_shallow 17150
zeropol 12867480
zeroser 138992
zerovec 29348234
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 1687830
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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