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 30861-40e9da58f9) Lines: 1421 1535 92.6 %
Date: 2026-05-04 09:27:01 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 637
gchar_set_nalg 637
gchar_set_nfree 637
gchar_set_ntors 637
bnf_get_reg 648
pari_err_DIM 718
perm_sqr 728
Rg_to_Fq 756
F2m_set 798
row_i 987
RgM_minor 1036
quad_disc 1085
ellQp_get_p 1134
zero_F2x 1181
gchar_set_m0 1190
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_copy_precs 1470
gchar_set_prec 1470
gchar_set_basis 1827
gchar_set_cyc 1827
mkintmodu 1834
pari_realloc 1887
RgXQX_div 1904
gchar_get_sfu 1996
mkpadic 2009
gchar_set_evalprec 2086
gchar_get_nm 2108
gchar_set_u0 2142
gchar_get_nalg 2296
gchar_set_nf 2363
vecreverse_inplace 2612
rnf_get_ramified_primes 2849
pari_err_DOMAIN 2876
vecsmall_reverse 3052
vecsmall_to_vec_inplace 3304
gchar_set_nfprec 3466
pari_err_TYPE2 3493
get_FpXQX_degree 3589
vecsmall_min 3710
gchar_get_m0 3823
gchar_get_evalprec 4011
gchar_get_modP 4095
FqX_normalize 4144
nf_get_r2 4154
nf_get_zk 4382
nf_get_diff 4445
F2v_copy 4487
FpXQX_div 4526
rnf_get_zk 4830
rnf_get_nfvarn 4886
matpascal 4935
gchar_get_u0 5002
idealchineseinit 5427
pari_stack_pushp 5842
FqX_get_red 6090
gal_get_p 6118
gval 6391
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 8386
vectrunc_append_batch 9667
prec2ndec 9778
cgetalloc 10157
ZX_equal1 10488
gchar_get_Ui 11096
vec_shorten 11564
R_abs_shallow 13097
closure_get_dbg 13660
gchar_get_nfprec 13854
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15491
znstar_get_gen 16150
gchar_get_cyc 16535
mkmat3 17001
zeropadic_shallow 17150
gchar_get_r1 17683
Fp_muls 17780
vec_lengthen 18960
FqX_halve 19411
gchar_get_prec 19427
pari_err_INV 20025
FpXY_Fq_evaly 20587
rnf_get_nfdegree 21455
FqX_mulu 21942
gtomp 22428
FqXQ_mul 22766
RgM_fpnorml2 22788
nf_get_Tr 23351
ZV_dvd 23485
gal_get_mod 23870
FqX_neg 24956
FqX_red 25354
bnf_get_fu 25859
nfV_to_scalar_or_alg 26299
gal_get_den 27867
gal_get_invvdm 27873
absfrac_shallow 28237
gequalgs 29176
zerovec_block 29654
gener_Fq_local 29946
gal_get_roots 32843
F2xqX_div 33173
mkcolcopy 33585
ndec2prec 33615
gchar_get_basis 34731
Qtoss 35364
gal_get_pol 36427
closure_get_text 37150
FqX_rem 37743
F2v_to_F2x 38052
gchar_get_S 38371
gchar_get_ns 38371
FqX_div 38569
gchar_get_nc 38876
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
ndec2nlong 41885
znstar_get_Ui 46788
FqX_degfact 47786
pari_calloc 48127
bid_get_sarch 48594
vecmoduu 49784
get_FpXQX_var 51630
gchar_get_loccyc 52520
locs_get_cyc 54144
div_content 58510
err_get_num 62595
RgX_fpnorml2 63070
bid_get_gen 64274
nf_get_ramified_primes 64644
RgX_is_rational 68286
FqX_sub 68607
mkquad 69118
FqX_div_by_X_x 69699
quadnorm 69881
FqX_sqr 71855
bid_get_ideal 72849
Fq_to_FpXQ 73652
vecsmall_shorten 75754
bnr_get_mod 77126
gal_get_group 80414
mkcol3 88314
cyclic_perm 99932
gtou 100674
mkcol4 103467
zv_to_zx 104146
mkmoo 108933
zeromat 109003
RgV_isin 110158
RgV_isin_i 110158
mkvec2copy 114548
Q_abs_shallow 120226
mkmatcopy 122318
mkveccopy 122528
FqX_add 127694
RgXQX_rem 127915
rnf_get_map 135659
zeroser 139013
idealred 139135
FqX_factor 140960
RgV_is_QV 142050
get_FpXQX_mod 146583
FlxqX_div_pre 165413
znstar_get_U 176107
vecsmall_prepend 186977
gchar_get_DLdata 192479
locs_get_Lsprk 195755
F2m_copy 200667
get_F2xqX_degree 200851
rowcopy 204988
mkmat22s 207578
gchar_get_bnf 207685
locs_get_m_infty 211534
mkvec2s 220777
mkcol6 232470
ellR_get_prec 232750
rowslicepermute 234679
zero_Flm_copy 238324
Fp_halve 247271
gchar_get_nf 247942
affc_fixlg 250436
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264435
bnr_get_no 277486
bnf_get_tuN 283013
gchar_get_zm 286343
bnf_get_fu_nocheck 289089
bnf_get_tuU 303596
nf_get_G 304840
vec_prepend 313919
get_FlxqX_degree 317580
rnf_get_polabs 327628
cxtoreal 338016
upr_norm 347917
RgX_renormalize 349807
FqX_mul 368760
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 385270
RgX_is_QX 400072
ZM_hnfrem 401356
abgrp_get_no 406746
perm_conj 418299
FqX_Fq_mul 427296
FqX_extgcd 447453
nf_get_disc 464447
precdbl 476413
RgX_shift_inplace 479448
RgX_shift_inplace_init 479448
Z_issquare 509458
nf_get_sign 522481
mkvec3s 524441
addmuliu 541644
ellff_get_a4a6 551466
gdivsg 561956
zv_to_ZV 569244
FqX_Fp_mul 576285
vecsmall_to_vec 578148
prec2nbits_mul 581909
vecsmall_ei 585113
ZM_ZV_mod 610741
RgC_fpnorml2 619957
powIs 620095
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698726
coltrunc_init 740257
logint 757058
gcmpgs 761936
row 763900
rnf_get_nf 786086
affgr 795161
zero_F2m_copy 845286
FpXX_renormalize 849322
zeropadic 857472
gmin_shallow 901169
ellinf 913726
ZXQ_sqr 961542
cgetc 976268
Flx_lead 1068936
polx_F2x 1079355
pr_norm 1090572
Flx_constant 1091772
Fp_invsafe 1097242
sstoQ 1097313
Flx_mulu 1105409
vecsmall_max 1178313
mkfracss 1209563
RgV_isscalar 1211817
gen_I 1269151
RgX_is_monomial 1328333
mkoo 1332097
bnf_get_sunits 1369337
rnf_get_absdegree 1392746
bnr_get_nf 1399095
constant_coeff 1445633
Rg_col_ei 1451457
inf_get_sign 1453255
vecsmall_concat 1464564
nf_get_varn 1503828
guncloneNULL_deep 1505407
bid_get_mod 1521921
F2m_flip 1554269
F2v_flip 1554269
F2x_flip 1554269
F2x_div 1572024
uutoQ 1602256
nf_get_roots 1632099
bnf_get_gen 1681863
zv_copy 1687672
vec_ei 1714809
mkvecsmall5 1718423
gsubgs 1731743
nf_get_roundG 1749970
abgrp_get_gen 1766576
ellff_get_field 1790622
modpr_get_p 1887627
get_F2x_degree 1928647
killblock 1955394
Flx_div 1999823
ellnf_get_nf 2027258
bnr_get_bid 2046098
Flv_copy 2058938
ulogint 2101118
ell_get_j 2126269
bid_get_MOD 2157259
bid_get_sprk 2157985
ZXQ_mul 2166523
get_F2x_var 2168801
bid_get_fact2 2201581
gc_slice 2211515
pol_xn 2254017
pari_realloc_ip 2350040
bid_get_archp 2397118
bid_get_fact 2498911
rnf_get_degree 2506335
bnr_get_cyc 2522590
ell_get_b4 2550293
mul_content 2659162
cyc_get_expo 2757558
hash_str 2782958
sqrtnr 2810670
bnr_get_clgp 2830271
zero_Flm 2830904
rnf_get_pol 2845192
vecslicepermute 2859025
znstar_get_pe 2869070
F2x_equal1 2873723
bnf_get_logfu 2877862
RgX_coeff 2908792
gisdouble 2995502
Fq_red 3106540
bit_accuracy_mul 3175844
ZV_to_zv 3211715
identity_perm 3243282
F3m_coeff 3255553
zero_Flx 3255872
mkpolmod 3262597
identity_zv 3267645
znstar_get_conreygen 3290533
ell_get_b8 3297414
get_F2x_mod 3307679
get_FpX_mod 3387879
vec_append 3469079
zero_F2v 3656650
bid_get_U 3680238
bnf_get_cyc 3689955
bnr_get_bnf 3710958
nf_get_index 3715890
perm_inv 3747433
pol_1 3753770
ell_get_b6 3863192
pol_x 3866503
mulsubii 3893258
vec_to_vecsmall 4041830
vecsmall_append 4114749
F2x_equal 4192478
sqrfrac 4224619
mkcol2s 4416244
FpXQX_renormalize 4688918
pol1_F2x 4769447
mkmat 4783259
qfb_disc3 4997897
mkfraccopy 5010468
is_rational_t 5019527
bnf_get_clgp 5380376
nf_get_zkprimpart 5417920
nf_get_zkden 5463772
FpX_div 5583710
bid_get_cyc 5739833
bid_get_grp 5804682
pari_stack_delete 5868361
col_ei 5927323
isintm1 6222460
pari_stack_init 6351403
Flm_copy 6435839
sqrti 6614906
get_FpX_var 6952391
get_FpX_degree 6969351
RgX_div 6998920
vecsmall_lexcmp 7043256
ZM_lll 7139133
RgX_gtofp 7166483
znstar_get_faN 7334854
vecsmall_copy 7341189
ell_get_b2 7371402
ZX_is_monic 7670883
zc_to_ZC 7914205
vecsmall_to_col 7928794
znstar_get_conreycyc 7982136
mkintmod 8066786
checkell_i 8103766
Q_abs 8125750
ZV_ZV_mod 8147268
Flx_equal1 8200688
RgM_gtofp 8257775
F2m_coeff 8359018
Flm_row 8743060
cxtofp 9115536
veclast 9374375
ismpzero 9716353
is_intreal_t 9716464
const_col 9730217
nf_get_invzk 9778503
bnf_get_nf 9875244
RgM_dimensions 9955217
mkvec4 10157086
ell_get_a4 10325148
ell_get_a6 10371108
mkcol 10661547
ZC_hnfrem 10697425
mul_denom 10755070
ell_get_c4 11018604
ell_get_a2 11108730
Fp_addmul 11243718
gc_INT_affii 11579608
vectrunc_init 11768095
ser_isexactzero 11871118
pr_get_gen 12076054
abgrp_get_cyc 12234637
F2x_clear 12361775
F2v_clear 12361779
nbits2nlong 12775665
ell_get_a3 12863765
zeropol 12924468
ell_get_c6 13474287
gmax_shallow 13510227
modpr_get_T 13867090
zeromatcopy 14379292
closure_get_frame 14694945
rowpermute 14762993
ell_get_type 14945339
Fp_div 15034823
Fp_divu 15129366
mkvec5 15189748
vectrunc_append 15858430
pr_get_e 16167912
ell_get_disc 16815917
matslice 16825244
ell_get_a1 17049198
pr_is_inert 17228093
pol0_F2x 17363700
normalize_frac 17574810
Fp_center_i 18057519
isint1 18136473
cxcompotor 18282765
qfb_disc 18502497
mkvecsmall4 18670497
const_vecsmall 18863093
Fp_double 20858069
vecpermute 21121347
Flx_div_pre 21725056
nf_get_M 21750102
RgM_shallowcopy 22234703
RgX_is_ZX 22395277
Fp_inv 23416676
nf_get_r1 23473296
ZV_isscalar 23678853
gmulgs 23825570
get_Flx_mod 25515431
pr_get_f 26448999
RgX_equal_var 27139615
pol_0 27280863
shallowcopy 27900245
mkqfb 27933894
zerovec 29349238
modpr_get_pr 31236512
hash_str_len 31623173
submulii 31985175
RgV_is_ZV 32100569
Fp_neg 32672373
mkmat2 33665116
RgC_gtofp 34032992
const_vec 34656948
polx_Flx 37516775
lincombii 38262950
znstar_get_N 38658755
zero_zv 39517353
mkfrac 42756079
powii 43129417
is_vec_t 44058524
closure_is_variadic 45954671
absfrac 47977059
guncloneNULL 49239315
pr_get_tau 49777547
ell_is_inf 50203410
mkmat22 50277472
QV_isscalar 54428478
pol1_Flx 55772561
addmuliu_inplace 59630408
submuliu_inplace 60130653
is_real_t 61906221
zero_Flv 61997943
Fp_sqr 63863106
qfb_is_qfi 64526159
F2x_copy 64599310
gtodouble 66205627
Fp_mulu 66622235
get_Flx_var 68295148
mkvec 68960612
nf_get_degree 71393397
Fp_center 77302864
vecsmallpermute 78756256
rowslice 79456801
perm_mul 80952777
get_Flx_degree 82776238
Fp_red 82930979
gtos 85880079
sqrtr 87153671
is_noncalc_t 88524328
pr_get_p 92765434
mkcomplex 92903668
dbllog2r 94381825
cxnorm 95132096
nf_get_pol 98151709
vecsmalltrunc_append 100864016
gc_all 102471955
RgX_copy 102879016
mkvecsmall3 103281168
F2v_set 104115074
cgiv 105504076
prec2nbits 107070839
vecsmall_prefixcmp 108088071
pol0_Flx 111752749
mkvec3 121498390
gaddgs 123273239
both_odd 123544306
zerocol 125197040
F2x_renormalize 127860235
nchar2nlong 127862215
F2x_set 130003603
equalim1 139581434
mkvecsmall 140600946
bit_prec 143405226
FpX_renormalize 147098822
mkcol2 157103284
ZX_renormalize 157615845
nbrows 158363509
leading_coeff 169748900
Flx_copy 175941788
Fp_add 183361884
nbits2prec 189072548
Fp_sub 201467604
Fp_mul 203814230
mkvec2 216018288
vecsmalltrunc_init 245153289
gc_GEN 247579286
mkvecsmall2 257031342
gtofp 257193597
gmulgu 283377954
closure_get_data 306065982
closure_get_oper 306084099
closure_codestr 306103614
is_universal_constant 326481852
lgcols 352818342
closure_arity 356552680
is_scalar_t 404104983
lg_increase 446857471
bin_copy 473538552
pari_free 487888139
is_bigint 574896099
leafcopy_avma 594967368
vecslice 657336224
F2v_coeff 664437750
F2x_coeff 671068520
pari_malloc 723389719
is_matvec_t 744224570
pari_stack_new 910698563
GENbinbase 920314120
pari_stack_alloc 1006049625
pari_stack_base 1011901737
gc_leaf 1164003362
equali1 1172345078
nbits2extraprec 1498805273
gc_upto 1975660279
odd 2125356589
is_pm1 2218897526
lgpol 2630928314
isintzero 2865725467
bit_accuracy 3147798846
gc_INT 4139591188
prec2lg 4576882820
is_const_t 5010182439
degpol 5522096530
icopy_avma 8056109853
remsBIL 8158597468
divsBIL 8250144832
isonstack 8368598632
is_recursive_t 9131361195

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