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 30676-32b8a71ec1) Lines: 1420 1535 92.5 %
Date: 2026-02-14 09:22:40 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 1834
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 17150
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 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 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 33551
Qtoss 35364
gal_get_pol 36316
gchar_get_S 36995
gchar_get_ns 36995
closure_get_text 37079
gchar_get_nc 37261
FqX_rem 37743
F2v_to_F2x 37783
FqX_div 38566
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 58502
RgX_fpnorml2 61600
err_get_num 62550
bid_get_gen 64274
nf_get_ramified_primes 64644
RgX_is_rational 68163
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 75638
bnr_get_mod 77118
gal_get_group 80384
mkcol3 88314
cyclic_perm 99911
gtou 100693
mkcol4 103467
zv_to_zx 104146
mkmoo 108798
zeromat 109048
RgV_isin 110144
RgV_isin_i 110144
mkvec2copy 114529
Q_abs_shallow 120228
mkmatcopy 122301
mkveccopy 122521
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138436
zeroser 138943
RgV_is_QV 140731
FqX_factor 140960
get_FpXQX_mod 146583
FlxqX_div_pre 165412
znstar_get_U 176107
rowslicepermute 185094
vecsmall_prepend 186977
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200432
get_F2xqX_degree 200851
rowcopy 204988
gchar_get_bnf 205373
mkmat22s 207578
locs_get_m_infty 209475
mkvec2s 220250
mkcol6 232470
ellR_get_prec 232750
zero_Flm_copy 238236
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249622
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 282993
bnf_get_fu_nocheck 289084
bnf_get_tuU 303581
nf_get_G 304867
vec_prepend 314010
get_FlxqX_degree 317565
rnf_get_polabs 327628
Flx_constant 333949
cxtoreal 337204
upr_norm 346136
RgX_renormalize 349807
abgrp_get_no 354948
ZM_hnfrem 363795
FqX_mul 367705
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384935
RgX_is_QX 399933
perm_conj 418299
FqX_Fq_mul 427298
FqX_extgcd 444768
Z_issquare 457642
nf_get_disc 463482
precdbl 475406
RgX_shift_inplace 479401
RgX_shift_inplace_init 479401
zv_to_ZV 502982
vecsmall_to_vec 511781
nf_get_sign 519548
mkvec3s 524441
gdivsg 531592
addmuliu 535754
FqX_Fp_mul 571673
prec2nbits_mul 581166
vecsmall_ei 584713
ZM_ZV_mod 596618
RgC_fpnorml2 619853
FqX_is_squarefree 683802
vecreverse 697305
mkrfrac 698439
coltrunc_init 740257
logint 754826
gcmpgs 761924
row 763898
rnf_get_nf 786086
ellff_get_a4a6 800025
zero_F2m_copy 845036
FpXX_renormalize 849903
zeropadic 857436
gmin_shallow 877767
affgr 899594
ZXQ_sqr 960441
cgetc 975456
Flx_lead 977793
polx_F2x 1078469
pr_norm 1090533
sstoQ 1097313
Fp_invsafe 1100338
Flx_mulu 1105396
vecsmall_max 1164103
mkfracss 1209563
RgV_isscalar 1210269
gen_I 1269736
RgX_is_monomial 1331375
mkoo 1331878
bnf_get_sunits 1367772
rnf_get_absdegree 1392746
bnr_get_nf 1399065
zero_Flx 1426495
constant_coeff 1441429
Rg_col_ei 1451036
inf_get_sign 1452936
vecsmall_concat 1464231
guncloneNULL_deep 1498397
nf_get_varn 1503761
bid_get_mod 1521920
F2m_flip 1554068
F2v_flip 1554068
F2x_flip 1554068
F2x_div 1570681
uutoQ 1602144
nf_get_roots 1628951
bnf_get_gen 1680315
vec_ei 1713850
mkvecsmall5 1717525
ulogint 1719497
gsubgs 1724806
nf_get_roundG 1748174
abgrp_get_gen 1765029
ellinf 1869737
modpr_get_p 1887627
get_F2x_degree 1928991
killblock 1951986
Flx_div 1997971
ellnf_get_nf 2027238
ellff_get_field 2036854
bnr_get_bid 2046089
ell_get_j 2126269
bid_get_MOD 2157249
bid_get_sprk 2157970
ZXQ_mul 2161218
zv_copy 2183690
bid_get_fact2 2201557
gc_slice 2204418
pol_xn 2249530
pari_realloc_ip 2348868
bid_get_archp 2397118
bid_get_fact 2498940
get_F2x_mod 2499248
rnf_get_degree 2506335
bnr_get_cyc 2522547
get_F2x_var 2533982
ell_get_b4 2550216
Flv_copy 2554949
mul_content 2657118
RgX_coeff 2669861
vecslicepermute 2691796
cyc_get_expo 2757539
hash_str 2762514
perm_inv 2781977
sqrtnr 2810163
bnr_get_clgp 2830225
zero_Flm 2830562
rnf_get_pol 2845192
znstar_get_pe 2869063
F2x_equal1 2873906
bnf_get_logfu 2874764
gisdouble 2996103
mkpolmod 3103719
Fq_red 3106171
bit_accuracy_mul 3175484
ZV_to_zv 3211714
identity_perm 3242152
F3m_coeff 3255965
identity_zv 3266502
znstar_get_conreygen 3290526
ell_get_b8 3297414
get_FpX_mod 3394339
vec_append 3464589
zero_F2v 3647711
bid_get_U 3680227
bnf_get_cyc 3686152
bnr_get_bnf 3710954
nf_get_index 3711378
pol_1 3755835
pol_x 3857385
ell_get_b6 3863115
mulsubii 3881188
pol1_F2x 3957406
vec_to_vecsmall 4036918
vecsmall_append 4114664
sqrfrac 4148264
vecsmall_copy 4403839
mkcol2s 4416244
F2x_equal 4666210
FpXQX_renormalize 4693949
mkmat 4750885
qfb_disc3 4995786
mkfraccopy 4999873
is_rational_t 5032588
bnf_get_clgp 5375010
nf_get_zkprimpart 5414059
nf_get_zkden 5459887
FpX_div 5581206
checkell_i 5593313
isintm1 5710347
bid_get_cyc 5739811
bid_get_grp 5804665
pari_stack_delete 5846373
col_ei 5924613
pari_stack_init 6353269
get_FpX_degree 6424356
Flm_copy 6433602
sqrti 6610125
get_FpX_var 6957916
RgX_div 6997996
vecsmall_lexcmp 7043233
ell_get_a2 7106182
ZM_lll 7117510
RgX_gtofp 7145537
znstar_get_faN 7334819
ell_get_b2 7371025
ZX_is_monic 7374280
zc_to_ZC 7824642
vecsmall_to_col 7838822
znstar_get_conreycyc 7982108
F2m_coeff 8038334
Q_abs 8062812
mkintmod 8070685
ZV_ZV_mod 8131853
RgM_gtofp 8257613
Flx_equal1 8329875
gc_INT_affii 8491770
ell_get_a4 8536723
Flm_row 8742079
ell_get_a3 8814045
ell_get_a1 8997077
cxtofp 9079528
veclast 9372705
ismpzero 9584555
is_intreal_t 9584658
const_col 9729702
RgM_dimensions 9741752
nf_get_invzk 9767493
bnf_get_nf 9865153
mkvec4 10094877
ser_isexactzero 10120326
ell_get_a6 10370961
mkcol 10639758
ZC_hnfrem 10697488
mul_denom 10707930
ell_get_c4 11017816
Fp_addmul 11253389
vectrunc_init 11767383
pr_get_gen 12071116
abgrp_get_cyc 12230774
F2v_clear 12353744
F2x_clear 12353746
ell_get_type 12499087
nbits2nlong 12754808
pol0_F2x 13244476
ell_get_c6 13474227
gmax_shallow 13510198
modpr_get_T 13867156
zeromatcopy 14249493
rowpermute 14706519
closure_get_frame 14717066
Fp_div 15034570
Fp_divu 15128992
mkvec5 15185877
vectrunc_append 15855295
pr_get_e 16161698
ell_get_disc 16814629
matslice 16824817
normalize_frac 17206519
pr_is_inert 17223854
isint1 17586411
Fp_center_i 18012183
cxcompotor 18210823
qfb_disc 18502563
mkvecsmall4 18665918
const_vecsmall 19706506
vecpermute 20549894
Fp_double 20845014
Flx_div_pre 21687203
nf_get_M 21746001
RgM_shallowcopy 22179122
RgX_is_ZX 22423134
gmulgs 22613427
Fp_inv 23441425
nf_get_r1 23466441
ZV_isscalar 23675242
get_Flx_mod 25594341
pr_get_f 26443183
RgX_equal_var 26883014
shallowcopy 27631700
mkqfb 27929716
zerovec 29292119
modpr_get_pr 31236671
Fp_neg 31479198
hash_str_len 31631755
submulii 31982591
RgV_is_ZV 32160180
mkmat2 33654162
RgC_gtofp 34029885
const_vec 34566540
zero_zv 36737001
polx_Flx 37484993
lincombii 38230837
znstar_get_N 38658713
mkfrac 41645530
zeropol 42353429
powii 43130327
is_vec_t 43959629
closure_is_variadic 45906208
absfrac 46540237
guncloneNULL 48013330
pr_get_tau 49768334
mkmat22 50290102
ell_is_inf 52374987
QV_isscalar 54416539
pol1_Flx 55058305
addmuliu_inplace 59639077
zero_Flv 59676365
submuliu_inplace 60135699
F2x_copy 60510688
gtodouble 60781954
is_real_t 62059883
qfb_is_qfi 62319218
Fp_sqr 63839001
get_Flx_var 68353574
Fp_mulu 68950035
mkvec 71244538
nf_get_degree 71370356
Fp_center 77289811
vecsmallpermute 78723170
rowslice 79352917
sqrtr 80375297
perm_mul 80918480
Fp_red 82191376
pol_0 82787648
get_Flx_degree 82974146
is_noncalc_t 85780113
gtos 85855614
cxnorm 91199266
mkcomplex 91612627
pr_get_p 92750251
dbllog2r 92818511
nf_get_pol 98109179
vecsmalltrunc_append 100849845
F2v_set 101403248
cgiv 102684794
RgX_copy 103403228
pol0_Flx 103456112
prec2nbits 103965809
mkvecsmall3 104178926
vecsmall_prefixcmp 108088071
gc_all 109638447
F2x_renormalize 115433477
mkvec3 120109555
zerocol 122329197
gaddgs 123248601
both_odd 124161868
F2x_set 124780743
nchar2nlong 127558266
mkvecsmall 131619667
equalim1 139505490
bit_prec 143253358
FpX_renormalize 144213632
ZX_renormalize 154997862
mkcol2 156908347
nbrows 157468998
leading_coeff 170216359
Flx_copy 173180678
Fp_add 181100042
mkvec2 185030296
nbits2prec 186140296
vecsmalltrunc_init 189393814
Fp_mul 200801460
Fp_sub 203014450
mkvecsmall2 234956070
gtofp 254320598
gc_GEN 255439573
gmulgu 283104680
lg_increase 317676337
closure_get_data 321949171
closure_get_oper 321976464
closure_codestr 321996560
is_universal_constant 326465616
lgcols 351647820
closure_arity 372407259
is_scalar_t 375680883
bin_copy 495998732
pari_free 509488175
is_bigint 563400812
leafcopy_avma 577291720
vecslice 656677065
is_matvec_t 659295886
F2v_coeff 661318699
F2x_coeff 667884058
pari_malloc 745415681
pari_stack_new 926727602
GENbinbase 961785706
pari_stack_alloc 1022016505
pari_stack_base 1027824680
gc_leaf 1139899093
equali1 1174047716
nbits2extraprec 1458148896
gc_upto 1955304785
odd 2090426125
is_pm1 2205804373
lgpol 2691901275
isintzero 2845057672
bit_accuracy 3160413982
gc_INT 4112239556
prec2lg 4469818845
is_const_t 4898951268
degpol 5501261005
remsBIL 8002729216
icopy_avma 8041879918
divsBIL 8093629923
isonstack 8279156935
is_recursive_t 9238551272

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