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 30672-116f3d5b0e) Lines: 1421 1535 92.6 %
Date: 2026-02-07 09:23:42 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
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
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 13635
zx_renormalize 14049
pari_err_TYPE 15370
gal_get_gen 15435
znstar_get_gen 16150
gchar_get_cyc 16177
mkmat3 17001
zeropadic_shallow 17023
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 22084
gtomp 22428
RgM_fpnorml2 22662
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 26299
gal_get_den 27867
gal_get_invvdm 27874
absfrac_shallow 28237
gequalgs 29176
zerovec_block 29654
gener_Fq_local 29946
gal_get_roots 32731
gchar_get_basis 32816
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33554
Qtoss 35364
gal_get_pol 36315
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37079
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 37879
FqX_div 38567
FqX_deriv 40061
mkcols 40411
bid_get_arch 41187
ndec2nlong 41584
znstar_get_Ui 46788
pari_calloc 47734
FqX_degfact 47786
bid_get_sarch 48594
vecmoduu 49784
gchar_get_loccyc 50519
get_FpXQX_var 51630
locs_get_cyc 52136
div_content 58504
RgX_fpnorml2 61601
err_get_num 62551
bid_get_gen 64274
nf_get_ramified_primes 64645
RgX_is_rational 68164
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 75641
bnr_get_mod 77119
gal_get_group 80387
mkcol3 88314
cyclic_perm 99911
gtou 100695
mkcol4 103467
zv_to_zx 104146
mkmoo 108796
zeromat 109102
RgV_isin 110144
RgV_isin_i 110144
mkvec2copy 114528
Q_abs_shallow 120223
mkmatcopy 122264
mkveccopy 122521
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138438
zeroser 138943
RgV_is_QV 140736
FqX_factor 140946
get_FpXQX_mod 146583
FlxqX_div_pre 165408
znstar_get_U 176107
rowslicepermute 184966
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200440
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220249
mkcol6 232470
ellR_get_prec 232750
zero_Flm_copy 238230
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249623
rnf_get_nfpol 255354
znstar_get_cyc 262088
FqXn_mul 263403
get_FlxqX_var 264420
bnr_get_no 277488
gchar_get_zm 281911
bnf_get_tuN 282994
bnf_get_fu_nocheck 289093
bnf_get_tuU 303575
nf_get_G 304862
vec_prepend 314003
get_FlxqX_degree 317565
rnf_get_polabs 327628
Flx_constant 334016
cxtoreal 337206
upr_norm 346134
RgX_renormalize 349807
abgrp_get_no 354949
ZM_hnfrem 363796
FqX_mul 367709
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384930
RgX_is_QX 399924
perm_conj 418299
FqX_Fq_mul 427290
FqX_extgcd 444765
Z_issquare 457641
nf_get_disc 463482
precdbl 475401
RgX_shift_inplace 479367
RgX_shift_inplace_init 479367
zv_to_ZV 502982
vecsmall_to_vec 511781
nf_get_sign 519551
mkvec3s 524441
gdivsg 531592
addmuliu 535682
FqX_Fp_mul 571643
prec2nbits_mul 581163
vecsmall_ei 584736
ZM_ZV_mod 596642
RgC_fpnorml2 619850
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740250
logint 754834
gcmpgs 761915
row 763891
rnf_get_nf 786086
ellff_get_a4a6 800019
zero_F2m_copy 845042
FpXX_renormalize 849903
zeropadic 855646
gmin_shallow 877779
affgr 899594
ZXQ_sqr 960262
cgetc 975459
Flx_lead 979531
polx_F2x 1078230
pr_norm 1090481
sstoQ 1097313
Fp_invsafe 1100342
Flx_mulu 1105446
vecsmall_max 1164230
mkfracss 1209563
RgV_isscalar 1210270
gen_I 1269717
RgX_is_monomial 1331367
mkoo 1331899
bnf_get_sunits 1367775
rnf_get_absdegree 1392746
bnr_get_nf 1399069
zero_Flx 1426765
constant_coeff 1441425
Rg_col_ei 1451019
inf_get_sign 1452957
vecsmall_concat 1464283
guncloneNULL_deep 1493011
nf_get_varn 1503789
bid_get_mod 1521921
F2m_flip 1554224
F2v_flip 1554224
F2x_flip 1554224
F2x_div 1570493
uutoQ 1602144
nf_get_roots 1628930
bnf_get_gen 1680316
vec_ei 1713829
mkvecsmall5 1717499
ulogint 1724253
gsubgs 1724808
nf_get_roundG 1748174
abgrp_get_gen 1765027
ellinf 1869960
modpr_get_p 1887625
get_F2x_degree 1928887
killblock 1949876
Flx_div 1997987
ellnf_get_nf 2027265
ellff_get_field 2036832
bnr_get_bid 2046100
ell_get_j 2126269
bid_get_MOD 2157248
bid_get_sprk 2157975
ZXQ_mul 2160988
zv_copy 2183769
bid_get_fact2 2201576
gc_slice 2204395
pol_xn 2249251
pari_realloc_ip 2350001
bid_get_archp 2397121
bid_get_fact 2498949
get_F2x_mod 2499283
rnf_get_degree 2506335
bnr_get_cyc 2522571
get_F2x_var 2533856
ell_get_b4 2550216
Flv_copy 2555028
mul_content 2657295
RgX_coeff 2669861
vecslicepermute 2691069
cyc_get_expo 2757550
hash_str 2760615
perm_inv 2781995
sqrtnr 2810171
bnr_get_clgp 2830245
zero_Flm 2830386
rnf_get_pol 2845192
znstar_get_pe 2869063
F2x_equal1 2874065
bnf_get_logfu 2874765
gisdouble 2995834
mkpolmod 3103714
Fq_red 3106676
bit_accuracy_mul 3175484
ZV_to_zv 3211712
identity_perm 3242039
F3m_coeff 3255861
identity_zv 3266388
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3394326
vec_append 3464599
zero_F2v 3647735
bid_get_U 3680226
bnf_get_cyc 3686147
bnr_get_bnf 3710950
nf_get_index 3711391
pol_1 3755650
pol_x 3857390
ell_get_b6 3863115
mulsubii 3881553
pol1_F2x 3956430
vec_to_vecsmall 4036928
vecsmall_append 4114708
sqrfrac 4148339
vecsmall_copy 4403778
mkcol2s 4416244
F2x_equal 4669577
FpXQX_renormalize 4694397
mkmat 4750933
qfb_disc3 4996008
mkfraccopy 4999896
is_rational_t 5032605
bnf_get_clgp 5375002
nf_get_zkprimpart 5414042
nf_get_zkden 5459826
FpX_div 5581187
checkell_i 5593227
isintm1 5710343
bid_get_cyc 5739832
bid_get_grp 5804686
pari_stack_delete 5817249
col_ei 5924577
pari_stack_init 6353159
get_FpX_degree 6424423
Flm_copy 6433673
sqrti 6610253
get_FpX_var 6958154
RgX_div 7000642
vecsmall_lexcmp 7043226
ell_get_a2 7106174
ZM_lll 7117781
RgX_gtofp 7145464
znstar_get_faN 7334819
ell_get_b2 7371029
ZX_is_monic 7374227
zc_to_ZC 7824363
vecsmall_to_col 7838544
znstar_get_conreycyc 7982108
F2m_coeff 8038651
Q_abs 8062688
mkintmod 8092554
ZV_ZV_mod 8131892
RgM_gtofp 8258069
Flx_equal1 8329935
gc_INT_affii 8486824
ell_get_a4 8536715
Flm_row 8741753
ell_get_a3 8814041
ell_get_a1 8997073
cxtofp 9079111
veclast 9372697
ismpzero 9584482
is_intreal_t 9584589
const_col 9729694
RgM_dimensions 9741711
nf_get_invzk 9767474
bnf_get_nf 9865170
mkvec4 10094852
ser_isexactzero 10120326
ell_get_a6 10370953
mkcol 10639714
ZC_hnfrem 10697388
mul_denom 10707574
ell_get_c4 11017895
Fp_addmul 11241439
vectrunc_init 11766355
pr_get_gen 12071116
abgrp_get_cyc 12230813
F2v_clear 12353892
F2x_clear 12353894
ell_get_type 12498816
nbits2nlong 12751034
pol0_F2x 13243513
ell_get_c6 13474298
gmax_shallow 13510200
modpr_get_T 13867129
zeromatcopy 14250047
rowpermute 14706461
closure_get_frame 14716968
Fp_div 15035760
Fp_divu 15130189
mkvec5 15185932
vectrunc_append 15854101
pr_get_e 16161915
ell_get_disc 16814910
matslice 16824938
normalize_frac 17206655
pr_is_inert 17223967
isint1 17586417
Fp_center_i 18050814
cxcompotor 18210130
qfb_disc 18502531
mkvecsmall4 18688480
const_vecsmall 19707078
vecpermute 20548571
Fp_double 20817096
Flx_div_pre 21691676
nf_get_M 21745913
RgM_shallowcopy 22179440
RgX_is_ZX 22423261
gmulgs 22562819
Fp_inv 23440777
nf_get_r1 23466361
ZV_isscalar 23675166
get_Flx_mod 25596435
pr_get_f 26442701
RgX_equal_var 26883019
shallowcopy 27631875
mkqfb 27930159
zerovec 29292055
modpr_get_pr 31236583
Fp_neg 31475702
hash_str_len 31631717
submulii 31982591
RgV_is_ZV 32160187
mkmat2 33654587
RgC_gtofp 34030995
const_vec 34567753
zero_zv 36734886
polx_Flx 37487195
lincombii 38222183
znstar_get_N 38658713
mkfrac 41641666
zeropol 42354001
powii 43130407
is_vec_t 43965592
closure_is_variadic 45906154
absfrac 46540111
guncloneNULL 48007888
pr_get_tau 49767999
mkmat22 50293122
ell_is_inf 52403750
QV_isscalar 54415393
pol1_Flx 55059445
zero_Flv 59671807
addmuliu_inplace 59716299
submuliu_inplace 60207756
F2x_copy 60574008
gtodouble 60786042
is_real_t 62062524
qfb_is_qfi 62320155
Fp_sqr 63571970
Fp_mulu 66024791
get_Flx_var 68359552
mkvec 71284934
nf_get_degree 71369156
Fp_center 77375471
vecsmallpermute 78723013
rowslice 79350858
sqrtr 80375425
perm_mul 80918373
get_Flx_degree 81524451
Fp_red 82193845
pol_0 82789208
gtos 85855682
is_noncalc_t 85871622
cxnorm 91200508
mkcomplex 91609694
pr_get_p 92749905
dbllog2r 92817071
nf_get_pol 98108583
vecsmalltrunc_append 100855427
F2v_set 101403520
cgiv 102681620
RgX_copy 103406726
pol0_Flx 103469819
prec2nbits 103966243
mkvecsmall3 104187535
vecsmall_prefixcmp 108088071
gc_all 109639307
F2x_renormalize 115408612
mkvec3 115763769
zerocol 122332183
gaddgs 123248647
both_odd 124106539
F2x_set 124735408
nchar2nlong 127558440
mkvecsmall 131632477
equalim1 139505573
bit_prec 143245731
FpX_renormalize 144222344
ZX_renormalize 155034421
mkcol2 156927092
nbrows 157467276
leading_coeff 170223934
Flx_copy 173220249
Fp_add 181007982
mkvec2 185385413
nbits2prec 186125338
vecsmalltrunc_init 190134385
Fp_mul 200805241
Fp_sub 202738712
mkvecsmall2 234978738
gtofp 254339419
gc_GEN 255472165
gmulgu 283104681
lg_increase 317807828
closure_get_data 322062808
closure_get_oper 322079938
closure_codestr 322100510
is_universal_constant 326523758
lgcols 351650094
closure_arity 372516661
is_scalar_t 375659204
bin_copy 495996377
pari_free 509479507
is_bigint 563370805
leafcopy_avma 577132906
vecslice 656497704
is_matvec_t 659525240
F2v_coeff 661321073
F2x_coeff 667812128
pari_malloc 745414589
pari_stack_new 926867586
GENbinbase 961779189
pari_stack_alloc 1022150822
pari_stack_base 1027937989
gc_leaf 1134064247
equali1 1174096487
nbits2extraprec 1458250994
gc_upto 1955373294
odd 2091319834
is_pm1 2204268905
lgpol 2683794714
isintzero 2845036467
bit_accuracy 3160455724
gc_INT 4113206081
prec2lg 4470221467
is_const_t 4900467898
degpol 5483740260
remsBIL 8003239011
icopy_avma 8041825351
divsBIL 8094529052
isonstack 8274538586
is_recursive_t 9238407408

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