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
F2xX_shift 0
F3m_copy 0
F3m_set 0
FlxqX_div 0
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQ_add 0
FpXQ_sub 0
FqXQ_add 0
FqXQ_div 0
FqXQ_inv 0
FqXQ_invsafe 0
FqXQ_pow 0
FqXQ_sqr 0
FqXQ_sub 0
FqX_divrem 0
FqX_halfgcd 0
FqX_integ 0
FqXn_exp 0
FqXn_sqr 0
R_abs 0
RgX_isscalar 0
bid_get_gen_nocheck 0
bid_get_no 0
cbrtr 0
cbrtr_abs 0
gchar_get_U 0
gchar_get_hnf 0
gmaxsg 0
gminsg 0
inv_content 0
is_qfb_t 0
mkcol4s 0
mkerr 0
mkmat5 0
mkvec5s 0
mkvec6 0
pari_err_FILE 0
pari_err_MAXPRIME 0
pari_err_PACKAGE 0
polx_zx 0
random_Fq 0
truecoef 0
trunc_safe 0
vec_setconst 0
vecmodii 0
vecsmall_coincidence 0
zero_F2m 0
zero_zm 0
zero_zx 0
zm_copy 0
zm_row 0
zm_to_zxV 0
zx_shift 0
zx_to_zv 0
FqX_ddf 7
FqX_factor_squarefree 7
mkrfraccopy 14
pari_err_BUG 14
znstar_get_no 14
RgM_gtomp 21
mkvec4s 21
pari_err_CONSTPOL 21
vecsmall_indexmax 21
vecsmall_indexmin 21
closure_get_code 28
pari_err_FILEDESC 36
F2v_ei 42
RgV_gtofp 56
pari_err_IRREDPOL 63
pari_err_ROOTS0 63
bnr_get_gen_nocheck 70
mkmat4 84
vecsmall_isin 84
vecsmall_pack 84
gal_get_e 91
pari_err_COPRIME 91
mkcol5 94
Z_ispower 98
pari_err_FLAG 98
pari_err_PRIME 98
rnf_get_index 105
ellnf_get_bnf 119
RgX_to_RgV 140
pari_err_OVERFLOW 156
mkvecs 168
FqX_to_mod 175
pari_err_COMPONENT 214
nbits2ndec 228
pari_err_PREC 238
pari_err_PRIORITY 245
zm_transpose 266
rowsplice 273
err_get_compo 294
pol_xnall 294
mkvec6s 301
ellQp_get_prec 308
mkcol3s 315
gchar_get_nfree 322
gchar_get_ntors 322
get_F2xqX_mod 343
rnf_get_disc 357
pari_err_VAR 371
polxn_Flx 371
sturm 385
pari_err_OP 406
pari_err_IMPL 539
vecsmall_lengthen 547
RgC_gtomp 574
rnf_get_varn 574
gchar_get_r2 623
gchar_set_HUUi 630
gchar_set_nalg 630
gchar_set_nfree 630
gchar_set_ntors 630
bnf_get_reg 648
pari_err_DIM 718
perm_sqr 728
Rg_to_Fq 756
F2m_set 798
gchar_set_m0 945
row_i 987
RgM_minor 1036
quad_disc 1085
ellQp_get_p 1134
zero_F2x 1181
gchar_copy_precs 1225
gchar_set_prec 1225
rnf_get_invzk 1225
rnf_get_k 1225
locs_get_Lgenfil 1288
locs_get_famod 1288
FqX_powu 1295
pari_err_MODULUS 1316
rnf_get_idealdisc 1386
rnf_get_alpha 1428
ellQp_get_zero 1463
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_get_sfu 1743
gchar_set_evalprec 1813
mkintmodu 1834
gchar_get_nm 1869
pari_realloc 1880
RgXQX_div 1904
mkpadic 2009
gchar_get_nalg 2044
gchar_set_nf 2110
gchar_set_u0 2121
vecreverse_inplace 2605
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2876
gchar_set_nfprec 2968
vecsmall_reverse 3052
vecsmall_to_vec_inplace 3304
gchar_get_m0 3318
pari_err_TYPE2 3493
get_FpXQX_degree 3589
vecsmall_min 3710
gchar_get_evalprec 4011
gchar_get_modP 4095
FqX_normalize 4144
nf_get_r2 4154
gchar_get_u0 4252
nf_get_zk 4382
nf_get_diff 4445
F2v_copy 4487
FpXQX_div 4526
matpascal 4683
rnf_get_zk 4830
rnf_get_nfvarn 4886
idealchineseinit 5427
pari_stack_pushp 5821
FqX_get_red 6090
gal_get_p 6118
gval 6230
FqXn_expint 6590
gal_get_orders 6706
is_extscalar_t 6904
pari_err_SQRTN 7084
FqXn_inv 7126
rnf_get_nfzk 7245
FqX_roots 7273
submuliu 7700
bnr_get_gen 7847
get_FlxqX_mod 8033
identity_ZV 8120
gchar_get_mod 8225
locs_get_mod 8225
ndec2nbits 8270
FqX_gcd 8288
bnf_get_no 8372
vectrunc_append_batch 9667
prec2ndec 9778
cgetalloc 10136
ZX_equal1 10488
gchar_get_Ui 10983
vec_shorten 11557
R_abs_shallow 13097
gchar_get_nfprec 13468
closure_get_dbg 13660
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15491
znstar_get_gen 16150
gchar_get_cyc 16177
mkmat3 17001
zeropadic_shallow 17150
gchar_get_r1 17444
Fp_muls 17780
gchar_get_prec 18795
vec_lengthen 18960
FqX_halve 19411
pari_err_INV 20025
FpXY_Fq_evaly 20587
rnf_get_nfdegree 21455
FqX_mulu 21942
gtomp 22428
RgM_fpnorml2 22655
FqXQ_mul 22766
nf_get_Tr 23280
ZV_dvd 23485
gal_get_mod 23870
FqX_neg 24956
FqX_red 25354
bnf_get_fu 25859
nfV_to_scalar_or_alg 26300
gal_get_den 27866
gal_get_invvdm 27874
absfrac_shallow 28237
gequalgs 29176
zerovec_block 29654
gener_Fq_local 29946
gchar_get_basis 32816
gal_get_roots 32844
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33580
Qtoss 35364
gal_get_pol 36428
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37150
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 38000
FqX_div 38565
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47770
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58510
RgX_fpnorml2 61607
err_get_num 62595
bid_get_gen 64274
nf_get_ramified_primes 64643
RgX_is_rational 68157
FqX_sub 68607
mkquad 69118
FqX_div_by_X_x 69699
quadnorm 69881
FqX_sqr 71855
bid_get_ideal 72842
Fq_to_FpXQ 73652
vecsmall_shorten 75753
bnr_get_mod 77118
gal_get_group 80415
mkcol3 88314
cyclic_perm 99932
gtou 100711
mkcol4 103467
zv_to_zx 104146
mkmoo 108903
zeromat 108981
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114529
Q_abs_shallow 120234
mkmatcopy 122312
mkveccopy 122528
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138811
zeroser 138992
FqX_factor 140960
RgV_is_QV 142000
get_FpXQX_mod 146583
FlxqX_div_pre 165415
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200675
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220731
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234612
zero_Flm_copy 238315
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249620
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264435
bnr_get_no 277484
gchar_get_zm 281911
bnf_get_tuN 282998
bnf_get_fu_nocheck 289092
bnf_get_tuU 303584
nf_get_G 304800
vec_prepend 313924
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 337207
upr_norm 346134
RgX_renormalize 349807
FqX_mul 367935
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385003
RgX_is_QX 399945
ZM_hnfrem 401406
abgrp_get_no 406728
perm_conj 418299
FqX_Fq_mul 427292
FqX_extgcd 445024
nf_get_disc 463519
precdbl 476361
RgX_shift_inplace 479436
RgX_shift_inplace_init 479436
Z_issquare 509452
nf_get_sign 519601
mkvec3s 524441
addmuliu 541545
ellff_get_a4a6 551440
gdivsg 559710
zv_to_ZV 569244
FqX_Fp_mul 572194
vecsmall_to_vec 578043
prec2nbits_mul 581097
vecsmall_ei 585094
powIs 596435
ZM_ZV_mod 610738
RgC_fpnorml2 619940
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 755014
gcmpgs 761926
row 763880
rnf_get_nf 786086
zero_F2m_copy 845299
FpXX_renormalize 849322
zeropadic 857698
gmin_shallow 898155
affgr 899594
ellinf 913916
ZXQ_sqr 960614
cgetc 975460
Flx_lead 1069110
polx_F2x 1078888
pr_norm 1090531
Flx_constant 1091595
Fp_invsafe 1097238
sstoQ 1097313
Flx_mulu 1105412
vecsmall_max 1177265
mkfracss 1209563
RgV_isscalar 1210270
gen_I 1268864
RgX_is_monomial 1320022
mkoo 1332043
bnf_get_sunits 1367777
rnf_get_absdegree 1392746
bnr_get_nf 1399068
constant_coeff 1441262
Rg_col_ei 1451150
inf_get_sign 1453190
vecsmall_concat 1464664
nf_get_varn 1503783
guncloneNULL_deep 1510960
bid_get_mod 1521921
F2m_flip 1554262
F2v_flip 1554262
F2x_flip 1554262
F2x_div 1570612
uutoQ 1602144
nf_get_roots 1628857
bnf_get_gen 1680329
zv_copy 1687830
vec_ei 1714712
mkvecsmall5 1718681
gsubgs 1731943
nf_get_roundG 1748480
abgrp_get_gen 1765041
ellff_get_field 1790560
modpr_get_p 1887627
get_F2x_degree 1928485
killblock 1958251
Flx_div 1999758
ellnf_get_nf 2027249
bnr_get_bid 2046090
Flv_copy 2059094
ulogint 2090591
ell_get_j 2126269
bid_get_MOD 2157247
bid_get_sprk 2157976
ZXQ_mul 2166291
get_F2x_var 2168591
bid_get_fact2 2201570
gc_slice 2211094
pol_xn 2252851
pari_realloc_ip 2359200
bid_get_archp 2397092
bid_get_fact 2498928
rnf_get_degree 2506335
bnr_get_cyc 2522565
ell_get_b4 2550293
mul_content 2657454
cyc_get_expo 2757544
hash_str 2757673
sqrtnr 2810654
bnr_get_clgp 2830236
zero_Flm 2831175
rnf_get_pol 2845192
vecslicepermute 2859213
znstar_get_pe 2869063
F2x_equal1 2873655
bnf_get_logfu 2874765
RgX_coeff 2889731
gisdouble 2995892
mkpolmod 3075564
Fq_red 3106306
bit_accuracy_mul 3175715
ZV_to_zv 3211715
identity_perm 3243409
F3m_coeff 3255558
zero_Flx 3255585
identity_zv 3267772
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_F2x_mod 3307609
get_FpX_mod 3387846
vec_append 3468925
zero_F2v 3656727
bid_get_U 3680228
bnf_get_cyc 3686618
bnr_get_bnf 3710945
nf_get_index 3712036
perm_inv 3747429
pol_1 3752521
pol_x 3860428
ell_get_b6 3863192
mulsubii 3892769
vec_to_vecsmall 4039429
vecsmall_append 4114732
sqrfrac 4151030
F2x_equal 4189828
mkcol2s 4416244
FpXQX_renormalize 4692736
pol1_F2x 4767880
mkmat 4780348
qfb_disc3 4995073
mkfraccopy 4999386
is_rational_t 5017656
bnf_get_clgp 5375491
nf_get_zkprimpart 5416403
nf_get_zkden 5462216
FpX_div 5582005
bid_get_cyc 5739794
bid_get_grp 5804647
pari_stack_delete 5893755
col_ei 5925311
isintm1 6086519
pari_stack_init 6379008
Flm_copy 6434545
sqrti 6612715
get_FpX_var 6952124
get_FpX_degree 6969254
RgX_div 6997261
vecsmall_lexcmp 7043259
ZM_lll 7117596
RgX_gtofp 7163841
ZX_is_monic 7319890
znstar_get_faN 7334819
vecsmall_copy 7341143
ell_get_b2 7371388
zc_to_ZC 7910764
vecsmall_to_col 7925308
znstar_get_conreycyc 7982108
Q_abs 8060929
mkintmod 8066529
checkell_i 8104011
ZV_ZV_mod 8147256
Flx_equal1 8196110
RgM_gtofp 8257504
F2m_coeff 8363284
Flm_row 8743487
cxtofp 9093185
veclast 9374224
ismpzero 9702704
is_intreal_t 9702801
const_col 9730067
nf_get_invzk 9774934
bnf_get_nf 9866315
RgM_dimensions 9955402
mkvec4 10150160
ell_get_a4 10325137
ell_get_a6 10371097
mkcol 10653377
ZC_hnfrem 10697660
mul_denom 10709838
ell_get_c4 11018781
ell_get_a2 11108719
Fp_addmul 11175615
ser_isexactzero 11434254
gc_INT_affii 11573848
vectrunc_init 11767709
pr_get_gen 12072452
abgrp_get_cyc 12231225
F2x_clear 12362036
F2v_clear 12362047
nbits2nlong 12750126
ell_get_a3 12863740
zeropol 12867480
ell_get_c6 13474468
gmax_shallow 13510226
modpr_get_T 13867050
zeromatcopy 14377632
closure_get_frame 14734988
rowpermute 14759158
ell_get_type 14946191
Fp_div 15033169
Fp_divu 15127496
mkvec5 15187596
vectrunc_append 15858225
pr_get_e 16166978
ell_get_disc 16816015
matslice 16824723
ell_get_a1 17049173
pr_is_inert 17224267
normalize_frac 17311154
pol0_F2x 17347881
isint1 17987161
Fp_center_i 18039569
cxcompotor 18238178
qfb_disc 18502545
mkvecsmall4 18667492
const_vecsmall 18861094
Fp_double 20645657
vecpermute 21112024
Flx_div_pre 21709210
nf_get_M 21745614
RgM_shallowcopy 22235479
RgX_is_ZX 22315801
Fp_inv 23435753
nf_get_r1 23466120
ZV_isscalar 23675117
gmulgs 23875795
get_Flx_mod 25500692
pr_get_f 26444234
RgX_equal_var 26880506
pol_0 27123673
shallowcopy 27896886
mkqfb 27928245
zerovec 29348234
modpr_get_pr 31236527
hash_str_len 31655962
submulii 31985063
RgV_is_ZV 32095978
Fp_neg 32666524
mkmat2 33666295
RgC_gtofp 34033319
const_vec 34675769
polx_Flx 37500012
lincombii 38267434
znstar_get_N 38658713
zero_zv 39508902
mkfrac 41927780
powii 43129970
is_vec_t 43949339
closure_is_variadic 45931060
absfrac 46991165
pr_get_tau 49773670
guncloneNULL 49831439
ell_is_inf 50183612
mkmat22 50255591
QV_isscalar 54420466
pol1_Flx 55729232
addmuliu_inplace 59561346
submuliu_inplace 60065257
is_real_t 61900630
zero_Flv 61987341
Fp_sqr 63308761
qfb_is_qfi 64538840
F2x_copy 64590029
gtodouble 66248352
Fp_mulu 66265867
get_Flx_var 68248608
mkvec 69343987
nf_get_degree 71376878
Fp_center 77302575
vecsmallpermute 78760936
rowslice 79460542
perm_mul 80957249
get_Flx_degree 82644131
Fp_red 82934740
gtos 85865512
sqrtr 86935702
is_noncalc_t 88514652
mkcomplex 92009602
pr_get_p 92760672
cxnorm 94100085
dbllog2r 94329988
nf_get_pol 98120666
vecsmalltrunc_append 100811779
RgX_copy 102487129
gc_all 102551783
mkvecsmall3 103263339
F2v_set 104116063
cgiv 105482717
prec2nbits 106947355
vecsmall_prefixcmp 108088071
pol0_Flx 111630643
mkvec3 121149890
gaddgs 123270504
both_odd 124091883
zerocol 125155447
F2x_renormalize 127896821
nchar2nlong 127922140
F2x_set 129972006
equalim1 139567880
mkvecsmall 140272925
bit_prec 143399624
FpX_renormalize 147024103
mkcol2 156953330
ZX_renormalize 157480504
nbrows 158273876
leading_coeff 169336960
Flx_copy 175816842
Fp_add 183094095
nbits2prec 189011469
Fp_sub 200769416
Fp_mul 202985438
mkvec2 214246861
vecsmalltrunc_init 241920874
gc_GEN 246764245
mkvecsmall2 256971060
gtofp 257182627
gmulgu 283360013
closure_get_data 305851318
closure_get_oper 305869868
closure_codestr 305884296
is_universal_constant 326641398
lgcols 352680381
closure_arity 356327853
is_scalar_t 403471353
lg_increase 441303860
bin_copy 472884195
pari_free 487249305
is_bigint 574382688
leafcopy_avma 592882335
vecslice 657318470
F2v_coeff 664443102
F2x_coeff 670955964
pari_malloc 723346885
is_matvec_t 742711265
pari_stack_new 910889168
GENbinbase 919010412
pari_stack_alloc 1006212282
pari_stack_base 1012053452
gc_leaf 1163105152
equali1 1169325226
nbits2extraprec 1497971767
gc_upto 1971514187
odd 2124519239
is_pm1 2216723941
lgpol 2627179623
isintzero 2848734914
bit_accuracy 3145204449
gc_INT 4133871180
prec2lg 4563029410
is_const_t 5003315160
degpol 5522748607
icopy_avma 8049956589
remsBIL 8150654678
divsBIL 8242072735
isonstack 8357722896
is_recursive_t 9105032110

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