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 30616-7aa4fb0184) Lines: 1420 1535 92.5 %
Date: 2026-01-18 09:22:29 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
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
closure_get_code 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
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
pari_err_COPRIME 84
vecsmall_isin 84
vecsmall_pack 84
gal_get_e 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
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
zero_F2x 1350
rnf_get_idealdisc 1386
rnf_get_alpha 1428
ellQp_get_zero 1463
powIs 1561
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_get_sfu 1743
gchar_set_evalprec 1813
mkintmodu 1813
gchar_get_nm 1869
pari_realloc 1890
RgXQX_div 1904
mkpadic 2009
gchar_get_nalg 2044
gchar_set_nf 2110
gchar_set_u0 2121
vecsmall_min 2345
vecreverse_inplace 2605
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2862
gchar_set_nfprec 2968
vecsmall_reverse 3052
vecsmall_to_vec_inplace 3304
gchar_get_m0 3318
pari_err_TYPE2 3493
get_FpXQX_degree 3589
matpascal 3983
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
rnf_get_zk 4830
rnf_get_nfvarn 4886
idealchineseinit 5427
pari_stack_pushp 5851
gal_get_p 6006
FqX_get_red 6090
gval 6230
FqXn_expint 6590
gal_get_orders 6678
is_extscalar_t 6876
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 8113
gchar_get_mod 8225
locs_get_mod 8225
ndec2nbits 8270
FqX_gcd 8288
bnf_get_no 8372
vectrunc_append_batch 9667
prec2ndec 9778
cgetalloc 10166
gchar_get_Ui 10983
vec_shorten 11557
ZX_equal1 12850
R_abs_shallow 13097
gchar_get_nfprec 13468
closure_get_dbg 13628
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15435
znstar_get_gen 16150
gchar_get_cyc 16177
mkmat3 17001
zeropadic_shallow 17024
gchar_get_r1 17444
Fp_muls 17780
gchar_get_prec 18795
vec_lengthen 18960
FqX_halve 19411
pari_err_INV 20018
FpXY_Fq_evaly 20587
rnf_get_nfdegree 21455
FqX_mulu 21942
nf_get_Tr 22083
gtomp 22428
RgM_fpnorml2 22661
FqXQ_mul 22766
ZV_dvd 23485
gal_get_mod 23758
FqX_neg 24956
FqX_red 25354
bnf_get_fu 25859
nfV_to_scalar_or_alg 26300
gal_get_den 27867
gal_get_invvdm 27874
absfrac_shallow 28237
gequalgs 29176
zerovec_block 29654
gener_Fq_local 29946
gal_get_roots 32732
gchar_get_basis 32816
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33555
Qtoss 35322
gal_get_pol 36316
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37065
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 37906
FqX_div 38567
FqX_deriv 40061
mkcols 40411
bid_get_arch 41187
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47720
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58503
RgX_fpnorml2 61496
err_get_num 62537
bid_get_gen 64274
nf_get_ramified_primes 64640
RgX_is_rational 68165
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 75640
bnr_get_mod 77119
gal_get_group 80388
mkcol3 88314
gtou 99542
cyclic_perm 99911
mkcol4 103467
zv_to_zx 104146
mkmoo 108795
zeromat 109086
RgV_isin 110144
RgV_isin_i 110144
mkvec2copy 114530
Q_abs_shallow 120221
mkmatcopy 122263
mkveccopy 122521
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138441
zeroser 138908
RgV_is_QV 140734
FqX_factor 140946
get_FpXQX_mod 146583
FlxqX_div_pre 165415
znstar_get_U 176107
rowslicepermute 184965
vecsmall_prepend 186970
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200438
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220242
mkcol6 232470
ellR_get_prec 232750
zero_Flm_copy 238234
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249618
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264420
bnr_get_no 277489
gchar_get_zm 281911
bnf_get_tuN 282997
bnf_get_fu_nocheck 289082
bnf_get_tuU 303581
nf_get_G 304859
vec_prepend 314004
get_FlxqX_degree 317565
rnf_get_polabs 327628
Flx_constant 334025
cxtoreal 337206
upr_norm 346133
RgX_renormalize 349807
abgrp_get_no 354947
ZM_hnfrem 363791
FqX_mul 367704
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384920
RgX_is_QX 399932
perm_conj 418299
FqX_Fq_mul 427296
FqX_extgcd 444667
Z_issquare 458713
nf_get_disc 463474
precdbl 475372
RgX_shift_inplace 479366
RgX_shift_inplace_init 479366
zv_to_ZV 502982
vecsmall_to_vec 511781
nf_get_sign 519553
mkvec3s 524441
gdivsg 531589
addmuliu 535753
FqX_Fp_mul 571449
prec2nbits_mul 581167
vecsmall_ei 584716
ZM_ZV_mod 596449
RgC_fpnorml2 619844
FqX_is_squarefree 683802
vecreverse 697277
mkrfrac 698439
coltrunc_init 740250
logint 754835
gcmpgs 761929
row 763884
rnf_get_nf 786086
ellff_get_a4a6 800030
zero_F2m_copy 845033
FpXX_renormalize 849917
zeropadic 855303
gmin_shallow 877655
affgr 898901
ZXQ_sqr 960440
cgetc 975459
Flx_lead 979226
polx_F2x 1078647
pr_norm 1090502
sstoQ 1097215
Fp_invsafe 1100357
Flx_mulu 1105464
vecsmall_max 1164128
mkfracss 1209563
RgV_isscalar 1210271
gen_I 1269724
RgX_is_monomial 1331334
mkoo 1331867
bnf_get_sunits 1367773
rnf_get_absdegree 1392746
bnr_get_nf 1399075
zero_Flx 1426663
guncloneNULL_deep 1437072
constant_coeff 1441152
Rg_col_ei 1450958
inf_get_sign 1452917
vecsmall_concat 1464220
nf_get_varn 1503751
bid_get_mod 1521922
F2m_flip 1554078
F2v_flip 1554078
F2x_flip 1554078
F2x_div 1571059
uutoQ 1600198
nf_get_roots 1628921
bnf_get_gen 1680312
vec_ei 1713844
mkvecsmall5 1717505
gsubgs 1724803
ulogint 1732629
nf_get_roundG 1748169
abgrp_get_gen 1765028
ellinf 1869784
modpr_get_p 1887627
killblock 1920312
get_F2x_degree 1928993
Flx_div 1997944
ellnf_get_nf 2027237
ellff_get_field 2036859
bnr_get_bid 2046099
ell_get_j 2126269
bid_get_MOD 2157267
bid_get_sprk 2158000
ZXQ_mul 2161260
zv_copy 2183749
bid_get_fact2 2201585
gc_slice 2204082
pol_xn 2249292
pari_realloc_ip 2257251
bid_get_archp 2397101
bid_get_fact 2498927
get_F2x_mod 2499347
rnf_get_degree 2506335
bnr_get_cyc 2522549
get_F2x_var 2533969
ell_get_b4 2550216
Flv_copy 2555008
mul_content 2657108
RgX_coeff 2669861
vecslicepermute 2689768
hash_str 2756815
cyc_get_expo 2757562
perm_inv 2781881
sqrtnr 2810113
zero_Flm 2829171
bnr_get_clgp 2830227
rnf_get_pol 2845192
znstar_get_pe 2869063
F2x_equal1 2874136
bnf_get_logfu 2874753
gisdouble 2995796
mkpolmod 3103725
Fq_red 3106320
bit_accuracy_mul 3175484
ZV_to_zv 3211405
identity_perm 3241226
F3m_coeff 3255917
identity_zv 3265576
znstar_get_conreygen 3290176
ell_get_b8 3297414
get_FpX_mod 3394363
vec_append 3465069
zero_F2v 3647669
bid_get_U 3680246
bnf_get_cyc 3686143
bnr_get_bnf 3710945
nf_get_index 3711374
pol_1 3755697
pol_x 3857038
ell_get_b6 3863115
mulsubii 3881189
pol1_F2x 3957471
vec_to_vecsmall 4036608
vecsmall_append 4099597
sqrfrac 4148211
vecsmall_copy 4403828
mkcol2s 4416244
F2x_equal 4663956
FpXQX_renormalize 4694006
mkmat 4750836
qfb_disc3 4995897
mkfraccopy 4999630
is_rational_t 5032526
bnf_get_clgp 5374993
nf_get_zkprimpart 5414043
nf_get_zkden 5459860
FpX_div 5581205
checkell_i 5593245
pari_stack_delete 5597194
isintm1 5710175
bid_get_cyc 5739805
bid_get_grp 5804655
col_ei 5924503
pari_stack_init 6052295
get_FpX_degree 6424303
Flm_copy 6433425
sqrti 6610166
get_FpX_var 6957500
RgX_div 7000642
vecsmall_lexcmp 7043259
ell_get_a2 7106182
ZM_lll 7117678
RgX_gtofp 7144886
znstar_get_faN 7331711
ell_get_b2 7371032
ZX_is_monic 7374320
zc_to_ZC 7824318
vecsmall_to_col 7838500
znstar_get_conreycyc 7979693
F2m_coeff 8038422
Q_abs 8062628
mkintmod 8092607
ZV_ZV_mod 8131338
RgM_gtofp 8257866
Flx_equal1 8329941
gc_INT_affii 8484518
ell_get_a4 8536723
Flm_row 8741367
ell_get_a3 8814052
ell_get_a1 8997084
cxtofp 9079139
veclast 9372703
ismpzero 9584514
is_intreal_t 9584616
const_col 9729692
RgM_dimensions 9741568
nf_get_invzk 9767533
bnf_get_nf 9865153
mkvec4 10093795
ser_isexactzero 10120284
ell_get_a6 10370961
mkcol 10639606
ZC_hnfrem 10697129
mul_denom 10707608
ell_get_c4 11018111
Fp_addmul 11268726
vectrunc_init 11768036
pr_get_gen 12070870
abgrp_get_cyc 12230758
F2x_clear 12353484
F2v_clear 12353496
ell_get_type 12498905
nbits2nlong 12746954
pol0_F2x 13245573
ell_get_c6 13474543
gmax_shallow 13510200
modpr_get_T 13867176
closure_get_frame 14158272
zeromatcopy 14249799
rowpermute 14705018
Fp_div 15035230
Fp_divu 15129681
mkvec5 15185676
vectrunc_append 15850615
pr_get_e 16161891
ell_get_disc 16815350
matslice 16817944
normalize_frac 17205519
pr_is_inert 17223906
isint1 17584807
Fp_center_i 18029226
cxcompotor 18209994
qfb_disc 18502550
mkvecsmall4 18653649
const_vecsmall 19706125
vecpermute 20546185
Fp_double 20928308
Flx_div_pre 21684294
nf_get_M 21745315
RgM_shallowcopy 22179178
RgX_is_ZX 22423311
gmulgs 22557796
Fp_inv 23440305
nf_get_r1 23465713
ZV_isscalar 23674520
get_Flx_mod 25590645
pr_get_f 26443017
RgX_equal_var 26883005
shallowcopy 27630878
mkqfb 27929925
zerovec 28453498
modpr_get_pr 31236669
Fp_neg 31479035
hash_str_len 31544958
submulii 31982591
RgV_is_ZV 32158283
mkmat2 33654027
RgC_gtofp 34029669
const_vec 34475045
zero_zv 36732648
polx_Flx 37480125
lincombii 38218350
znstar_get_N 38655073
mkfrac 41636200
zeropol 42354022
powii 43130337
is_vec_t 43950179
closure_is_variadic 44790726
absfrac 46638687
guncloneNULL 47934322
pr_get_tau 49768058
mkmat22 50282219
ell_is_inf 52332215
QV_isscalar 54415317
pol1_Flx 55047722
zero_Flv 59670188
addmuliu_inplace 59712177
submuliu_inplace 60195830
F2x_copy 60463218
gtodouble 60779241
is_real_t 62062468
qfb_is_qfi 62321755
Fp_sqr 63829123
Fp_mulu 67598088
get_Flx_var 68342919
mkvec 71108247
nf_get_degree 71368543
Fp_center 77187874
vecsmallpermute 78698252
rowslice 79323669
sqrtr 80367104
perm_mul 80893660
Fp_red 82195658
get_Flx_degree 82260349
pol_0 82996614
gtos 85855687
is_noncalc_t 85871280
cxnorm 91194242
mkcomplex 91602842
pr_get_p 92750259
dbllog2r 92816546
nf_get_pol 98105922
vecsmalltrunc_append 100813794
F2v_set 101403232
cgiv 102673913
RgX_copy 103406687
pol0_Flx 103462248
prec2nbits 103960249
mkvecsmall3 104166665
vecsmall_prefixcmp 108088071
gc_all 109637054
F2x_renormalize 115222362
mkvec3 117831238
zerocol 122328096
gaddgs 123248609
both_odd 124023143
F2x_set 124739286
nchar2nlong 127389255
mkvecsmall 131626215
equalim1 139505336
bit_prec 143231807
FpX_renormalize 144197794
ZX_renormalize 154932465
mkcol2 156892420
nbrows 157458221
leading_coeff 170258183
Flx_copy 173138604
Fp_add 181111193
mkvec2 185329256
nbits2prec 186114431
vecsmalltrunc_init 189974840
Fp_mul 200795931
Fp_sub 203289577
mkvecsmall2 234815675
gtofp 254305572
gc_GEN 255514251
gmulgu 282059384
lg_increase 317168157
closure_get_data 321669908
closure_get_oper 321691932
closure_codestr 321711617
is_universal_constant 325865492
lgcols 351582469
closure_arity 371577464
is_scalar_t 375657393
bin_copy 496046759
pari_free 509454553
is_bigint 563352110
leafcopy_avma 576915400
vecslice 656160344
is_matvec_t 659722235
F2v_coeff 661319342
F2x_coeff 667881542
pari_malloc 745337533
pari_stack_new 925152793
GENbinbase 961887296
pari_stack_alloc 1019805899
pari_stack_base 1025400704
gc_leaf 1136196377
equali1 1174327065
nbits2extraprec 1457472367
gc_upto 1953333639
odd 2090403910
is_pm1 2205102795
lgpol 2683696247
isintzero 2842898579
bit_accuracy 3159325056
gc_INT 4109875906
prec2lg 4469028077
is_const_t 4894791765
degpol 5486906066
remsBIL 7997435883
icopy_avma 8039436194
divsBIL 8088383986
isonstack 8270232771
is_recursive_t 9234954576

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