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
F2m_coeff 8038334
F2m_copy 200432
F2m_flip 1554068
F2m_set 798
F2v_clear 12353744
F2v_coeff 661318699
F2v_copy 4487
F2v_ei 42
F2v_flip 1554068
F2v_set 101403248
F2v_to_F2x 37783
F2xX_shift 0
F2x_clear 12353746
F2x_coeff 667884058
F2x_copy 60510688
F2x_div 1570681
F2x_equal 4666210
F2x_equal1 2873906
F2x_flip 1554068
F2x_renormalize 115433477
F2x_set 124780743
F2xqX_div 33173
F3m_coeff 3255965
F3m_copy 0
F3m_set 0
Flm_copy 6433602
Flm_row 8742079
Flv_copy 2554949
Flx_constant 333949
Flx_copy 173180678
Flx_div 1997971
Flx_div_pre 21687203
Flx_equal1 8329875
Flx_lead 977793
Flx_mulu 1105396
FlxqX_div 0
FlxqX_div_pre 165412
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4693949
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849903
FpXY_Fq_evaly 20587
FpX_div 5581206
FpX_renormalize 144213632
Fp_add 181100042
Fp_addmul 11253389
Fp_center 77289811
Fp_center_i 18012183
Fp_div 15034570
Fp_divu 15128992
Fp_double 20845014
Fp_halve 247271
Fp_inv 23441425
Fp_invsafe 1100338
Fp_mul 200801460
Fp_muls 17780
Fp_mulu 68950035
Fp_neg 31479198
Fp_red 82191376
Fp_sqr 63839001
Fp_sub 203014450
FqXQ_add 0
FqXQ_div 0
FqXQ_inv 0
FqXQ_invsafe 0
FqXQ_mul 22766
FqXQ_pow 0
FqXQ_sqr 0
FqXQ_sub 0
FqX_Fp_mul 571673
FqX_Fq_mul 427298
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38566
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444768
FqX_factor 140960
FqX_factor_squarefree 7
FqX_gcd 8288
FqX_get_red 6090
FqX_halfgcd 0
FqX_halve 19411
FqX_integ 0
FqX_is_squarefree 683802
FqX_mul 367705
FqX_mulu 21942
FqX_neg 24956
FqX_normalize 4144
FqX_powu 1295
FqX_red 25354
FqX_rem 37743
FqX_roots 7273
FqX_sqr 71855
FqX_sub 68607
FqX_to_mod 175
FqXn_exp 0
FqXn_expint 6590
FqXn_inv 7126
FqXn_mul 263403
FqXn_sqr 0
Fq_red 3106171
Fq_to_FpXQ 73652
GENbinbase 961785706
QV_isscalar 54416539
Q_abs 8062812
Q_abs_shallow 120228
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619853
RgC_gtofp 34029885
RgC_gtomp 574
RgM_dimensions 9741752
RgM_fpnorml2 22662
RgM_gtofp 8257613
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179122
RgV_gtofp 56
RgV_is_QV 140731
RgV_is_ZV 32160180
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210269
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103403228
RgX_div 6997996
RgX_equal_var 26883014
RgX_fpnorml2 61600
RgX_gtofp 7145537
RgX_is_QX 399933
RgX_is_ZX 22423134
RgX_is_monomial 1331375
RgX_is_rational 68163
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479401
RgX_shift_inplace_init 479401
RgX_to_RgV 140
Rg_col_ei 1451036
Rg_to_Fq 756
ZC_hnfrem 10697488
ZM_ZV_mod 596618
ZM_hnfrem 363795
ZM_lll 7117510
ZV_ZV_mod 8131853
ZV_dvd 23485
ZV_isscalar 23675242
ZV_to_zv 3211714
ZXQ_mul 2161218
ZXQ_sqr 960441
ZX_equal1 12850
ZX_is_monic 7374280
ZX_renormalize 154997862
Z_ispower 98
Z_issquare 457642
abgrp_get_cyc 12230774
abgrp_get_gen 1765029
abgrp_get_no 354948
absfrac 46540237
absfrac_shallow 28237
addmuliu 535754
addmuliu_inplace 59639077
affc_fixlg 249622
affgr 899594
bid_get_MOD 2157249
bid_get_U 3680227
bid_get_arch 41187
bid_get_archp 2397118
bid_get_cyc 5739811
bid_get_fact 2498940
bid_get_fact2 2201557
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804665
bid_get_ideal 72842
bid_get_mod 1521920
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157970
bin_copy 495998732
bit_accuracy 3160413982
bit_accuracy_mul 3175484
bit_prec 143253358
bnf_get_clgp 5375010
bnf_get_cyc 3686152
bnf_get_fu 25859
bnf_get_fu_nocheck 289084
bnf_get_gen 1680315
bnf_get_logfu 2874764
bnf_get_nf 9865153
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367772
bnf_get_tuN 282993
bnf_get_tuU 303581
bnr_get_bid 2046089
bnr_get_bnf 3710954
bnr_get_clgp 2830225
bnr_get_cyc 2522547
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77118
bnr_get_nf 1399065
bnr_get_no 277489
both_odd 124161868
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975456
cgiv 102684794
checkell_i 5593313
closure_arity 372407259
closure_codestr 321996560
closure_get_code 0
closure_get_data 321949171
closure_get_dbg 13635
closure_get_frame 14717066
closure_get_oper 321976464
closure_get_text 37079
closure_is_variadic 45906208
col_ei 5924613
coltrunc_init 740257
const_col 9729702
const_vec 34566540
const_vecsmall 19706506
constant_coeff 1441429
cxcompotor 18210823
cxnorm 91199266
cxtofp 9079528
cxtoreal 337204
cyc_get_expo 2757539
cyclic_perm 99911
dbllog2r 92818511
degpol 5501261005
div_content 58502
divsBIL 8093629923
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997077
ell_get_a2 7106182
ell_get_a3 8814045
ell_get_a4 8536723
ell_get_a6 10370961
ell_get_b2 7371025
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11017816
ell_get_c6 13474227
ell_get_disc 16814629
ell_get_j 2126269
ell_get_type 12499087
ell_is_inf 52374987
ellff_get_a4a6 800025
ellff_get_field 2036854
ellinf 1869737
ellnf_get_bnf 119
ellnf_get_nf 2027238
equali1 1174047716
equalim1 139505490
err_get_compo 294
err_get_num 62550
gaddgs 123248601
gal_get_den 27867
gal_get_e 91
gal_get_gen 15435
gal_get_group 80384
gal_get_invvdm 27874
gal_get_mod 23758
gal_get_orders 6678
gal_get_p 6006
gal_get_pol 36316
gal_get_roots 32732
gc_GEN 255439573
gc_INT 4112239556
gc_INT_affii 8491770
gc_all 109638447
gc_leaf 1139899093
gc_slice 2204418
gc_upto 1955304785
gchar_copy_precs 1225
gchar_get_DLdata 190673
gchar_get_S 36995
gchar_get_U 0
gchar_get_Ui 10983
gchar_get_basis 32816
gchar_get_bnf 205373
gchar_get_cyc 16177
gchar_get_evalprec 4011
gchar_get_hnf 0
gchar_get_loccyc 50519
gchar_get_m0 3318
gchar_get_mod 8225
gchar_get_modP 4095
gchar_get_nalg 2044
gchar_get_nc 37261
gchar_get_nf 243946
gchar_get_nfprec 13468
gchar_get_nfree 322
gchar_get_nm 1869
gchar_get_ns 36995
gchar_get_ntors 322
gchar_get_prec 18795
gchar_get_r1 17444
gchar_get_r2 623
gchar_get_sfu 1743
gchar_get_u0 4252
gchar_get_zm 281911
gchar_set_HUUi 630
gchar_set_basis 1575
gchar_set_cyc 1575
gchar_set_evalprec 1813
gchar_set_m0 945
gchar_set_nalg 630
gchar_set_nf 2110
gchar_set_nfprec 2968
gchar_set_nfree 630
gchar_set_ntors 630
gchar_set_prec 1225
gchar_set_u0 2121
gcmpgs 761924
gdivsg 531592
gen_I 1269736
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928991
get_F2x_mod 2499248
get_F2x_var 2533982
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82974146
get_Flx_mod 25594341
get_Flx_var 68353574
get_FlxqX_degree 317565
get_FlxqX_mod 8033
get_FlxqX_var 264420
get_FpXQX_degree 3589
get_FpXQX_mod 146583
get_FpXQX_var 51630
get_FpX_degree 6424356
get_FpX_mod 3394339
get_FpX_var 6957916
gisdouble 2996103
gmax_shallow 13510198
gmaxsg 0
gmin_shallow 877767
gminsg 0
gmulgs 22613427
gmulgu 283104680
gsubgs 1724806
gtodouble 60781954
gtofp 254320598
gtomp 22428
gtos 85855614
gtou 100693
guncloneNULL 48013330
guncloneNULL_deep 1498397
gval 6230
hash_str 2762514
hash_str_len 31631755
icopy_avma 8041879918
idealchineseinit 5427
idealred 138436
identity_ZV 8113
identity_perm 3242152
identity_zv 3266502
inf_get_sign 1452936
inv_content 0
is_bigint 563400812
is_const_t 4898951268
is_extscalar_t 6876
is_intreal_t 9584658
is_matvec_t 659295886
is_noncalc_t 85780113
is_pm1 2205804373
is_qfb_t 0
is_rational_t 5032588
is_real_t 62059883
is_recursive_t 9238551272
is_scalar_t 375680883
is_universal_constant 326465616
is_vec_t 43959629
isint1 17586411
isintm1 5710347
isintzero 2845057672
ismpzero 9584555
isonstack 8279156935
killblock 1951986
leading_coeff 170216359
leafcopy_avma 577291720
lg_increase 317676337
lgcols 351647820
lgpol 2691901275
lincombii 38230837
locs_get_Lgenfil 1288
locs_get_Lsprk 193935
locs_get_cyc 52136
locs_get_famod 1288
locs_get_m_infty 209475
locs_get_mod 8225
logint 754826
matpascal 3983
matslice 16824817
mkcol 10639758
mkcol2 156908347
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33551
mkcols 40411
mkcomplex 91612627
mkerr 0
mkfrac 41645530
mkfraccopy 4999873
mkfracss 1209563
mkintmod 8070685
mkintmodu 1834
mkmat 4750885
mkmat2 33654162
mkmat22 50290102
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122301
mkmoo 108798
mkoo 1331878
mkpadic 2009
mkpolmod 3103719
mkqfb 27929716
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71244538
mkvec2 185030296
mkvec2copy 114529
mkvec2s 220250
mkvec3 120109555
mkvec3s 524441
mkvec4 10094877
mkvec4s 21
mkvec5 15185877
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131619667
mkvecsmall2 234956070
mkvecsmall3 104178926
mkvecsmall4 18665918
mkvecsmall5 1717525
modpr_get_T 13867156
modpr_get_p 1887627
modpr_get_pr 31236671
mul_content 2657118
mul_denom 10707930
mulsubii 3881188
nbits2extraprec 1458148896
nbits2ndec 228
nbits2nlong 12754808
nbits2prec 186140296
nbrows 157468998
nchar2nlong 127558266
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26300
nf_get_G 304867
nf_get_M 21746001
nf_get_Tr 22083
nf_get_degree 71370356
nf_get_diff 4445
nf_get_disc 463482
nf_get_index 3711378
nf_get_invzk 9767493
nf_get_pol 98109179
nf_get_r1 23466441
nf_get_r2 4154
nf_get_ramified_primes 64644
nf_get_roots 1628951
nf_get_roundG 1748174
nf_get_sign 519548
nf_get_varn 1503761
nf_get_zk 4382
nf_get_zkden 5459887
nf_get_zkprimpart 5414059
normalize_frac 17206519
odd 2090426125
pari_calloc 47734
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
pari_err_DIM 718
pari_err_DOMAIN 2862
pari_err_FILE 0
pari_err_FILEDESC 36
pari_err_FLAG 98
pari_err_IMPL 539
pari_err_INV 20018
pari_err_IRREDPOL 63
pari_err_MAXPRIME 0
pari_err_MODULUS 1316
pari_err_OP 406
pari_err_OVERFLOW 156
pari_err_PACKAGE 0
pari_err_PREC 238
pari_err_PRIME 98
pari_err_PRIORITY 245
pari_err_ROOTS0 63
pari_err_SQRTN 7084
pari_err_TYPE 15370
pari_err_TYPE2 3493
pari_err_VAR 371
pari_free 509488175
pari_malloc 745415681
pari_realloc 1890
pari_realloc_ip 2348868
pari_stack_alloc 1022016505
pari_stack_base 1027824680
pari_stack_delete 5846373
pari_stack_init 6353269
pari_stack_new 926727602
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781977
perm_mul 80918480
perm_sqr 728
pol0_F2x 13244476
pol0_Flx 103456112
pol1_F2x 3957406
pol1_Flx 55058305
pol_0 82787648
pol_1 3755835
pol_x 3857385
pol_xn 2249530
pol_xnall 294
polx_F2x 1078469
polx_Flx 37484993
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130327
pr_get_e 16161698
pr_get_f 26443183
pr_get_gen 12071116
pr_get_p 92750251
pr_get_tau 49768334
pr_is_inert 17223854
pr_norm 1090533
prec2lg 4469818845
prec2nbits 103965809
prec2nbits_mul 581166
prec2ndec 9778
precdbl 475406
qfb_disc 18502563
qfb_disc3 4995786
qfb_is_qfi 62319218
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8002729216
rnf_get_absdegree 1392746
rnf_get_alpha 1428
rnf_get_degree 2506335
rnf_get_disc 357
rnf_get_idealdisc 1386
rnf_get_index 105
rnf_get_invzk 1225
rnf_get_k 1225
rnf_get_map 135659
rnf_get_nf 786086
rnf_get_nfdegree 21455
rnf_get_nfpol 255354
rnf_get_nfvarn 4886
rnf_get_nfzk 7245
rnf_get_pol 2845192
rnf_get_polabs 327628
rnf_get_ramified_primes 2849
rnf_get_varn 574
rnf_get_zk 4830
row 763898
row_i 987
rowcopy 204988
rowpermute 14706519
rowslice 79352917
rowslicepermute 185094
rowsplice 273
ser_isexactzero 10120326
shallowcopy 27631700
sqrfrac 4148264
sqrti 6610125
sqrtnr 2810163
sqrtr 80375297
sstoQ 1097313
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60135699
truecoef 0
trunc_safe 0
ulogint 1719497
upr_norm 346136
uutoQ 1602144
vec_append 3464589
vec_ei 1713850
vec_lengthen 18960
vec_prepend 314010
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036918
veclast 9372705
vecmodii 0
vecmoduu 49784
vecpermute 20549894
vecreverse 697305
vecreverse_inplace 2605
vecslice 656677065
vecslicepermute 2691796
vecsmall_append 4114664
vecsmall_coincidence 0
vecsmall_concat 1464231
vecsmall_copy 4403839
vecsmall_ei 584713
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043233
vecsmall_max 1164103
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75638
vecsmall_to_col 7838822
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78723170
vecsmalltrunc_append 100849845
vecsmalltrunc_init 189393814
vecsplice 384935
vectrunc_append 15855295
vectrunc_append_batch 9667
vectrunc_init 11767383
zc_to_ZC 7824642
zero_F2m 0
zero_F2m_copy 845036
zero_F2v 3647711
zero_F2x 1350
zero_Flm 2830562
zero_Flm_copy 238236
zero_Flv 59676365
zero_Flx 1426495
zero_zm 0
zero_zv 36737001
zero_zx 0
zerocol 122329197
zeromat 109048
zeromatcopy 14249493
zeropadic 857436
zeropadic_shallow 17150
zeropol 42353429
zeroser 138943
zerovec 29292119
zerovec_block 29654
zm_copy 0
zm_row 0
zm_to_zxV 0
zm_transpose 266
znstar_get_N 38658713
znstar_get_U 176107
znstar_get_Ui 46788
znstar_get_conreycyc 7982108
znstar_get_conreygen 3290526
znstar_get_cyc 262088
znstar_get_faN 7334819
znstar_get_gen 16150
znstar_get_no 14
znstar_get_pe 2869063
zv_copy 2183690
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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