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 30625-1bbc371a2f) Lines: 1422 1535 92.6 %
Date: 2026-01-23 09:24:12 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 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 22085
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 32732
gchar_get_basis 32816
F2xqX_div 33173
ndec2prec 33314
mkcolcopy 33561
Qtoss 35322
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 37848
FqX_div 38568
FqX_deriv 40061
mkcols 40411
bid_get_arch 41188
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 58505
RgX_fpnorml2 61496
err_get_num 62551
bid_get_gen 64274
nf_get_ramified_primes 64645
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 99518
cyclic_perm 99911
mkcol4 103467
zv_to_zx 104146
mkmoo 108798
zeromat 109096
RgV_isin 110144
RgV_isin_i 110144
mkvec2copy 114530
Q_abs_shallow 120243
mkmatcopy 122273
mkveccopy 122521
RgXQX_rem 127635
FqX_add 127694
rnf_get_map 135659
idealred 138443
zeroser 138908
RgV_is_QV 140735
FqX_factor 140946
get_FpXQX_mod 146583
FlxqX_div_pre 165414
znstar_get_U 176107
rowslicepermute 185041
vecsmall_prepend 186970
gchar_get_DLdata 190673
locs_get_Lsprk 193935
F2m_copy 200435
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 238226
gchar_get_nf 243946
Fp_halve 247271
affc_fixlg 249624
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 283003
bnf_get_fu_nocheck 289091
bnf_get_tuU 303583
nf_get_G 304881
vec_prepend 314002
get_FlxqX_degree 317565
rnf_get_polabs 327628
Flx_constant 334020
cxtoreal 337206
upr_norm 346134
RgX_renormalize 349807
abgrp_get_no 354944
ZM_hnfrem 363805
FqX_mul 367704
ellR_get_sign 371535
get_F2xqX_var 375375
vecsplice 384929
RgX_is_QX 399930
perm_conj 418299
FqX_Fq_mul 427286
FqX_extgcd 444665
Z_issquare 458707
nf_get_disc 463478
precdbl 475370
RgX_shift_inplace 479366
RgX_shift_inplace_init 479366
zv_to_ZV 502982
vecsmall_to_vec 511781
nf_get_sign 519552
mkvec3s 524441
gdivsg 531592
addmuliu 535736
FqX_Fp_mul 571434
prec2nbits_mul 581163
vecsmall_ei 584729
ZM_ZV_mod 596479
RgC_fpnorml2 619857
FqX_is_squarefree 683802
vecreverse 697277
mkrfrac 698439
coltrunc_init 740250
logint 754834
gcmpgs 761924
row 763885
rnf_get_nf 786086
ellff_get_a4a6 800047
zero_F2m_copy 845057
FpXX_renormalize 849917
zeropadic 855265
gmin_shallow 877676
affgr 898901
ZXQ_sqr 960351
cgetc 975459
Flx_lead 978253
polx_F2x 1079162
pr_norm 1090479
sstoQ 1097215
Fp_invsafe 1100362
Flx_mulu 1105438
vecsmall_max 1164222
mkfracss 1209563
RgV_isscalar 1210270
gen_I 1269713
RgX_is_monomial 1331336
mkoo 1331880
bnf_get_sunits 1367775
rnf_get_absdegree 1392746
bnr_get_nf 1399085
zero_Flx 1427077
constant_coeff 1441146
Rg_col_ei 1450957
inf_get_sign 1452937
vecsmall_concat 1464228
nf_get_varn 1503789
guncloneNULL_deep 1510115
bid_get_mod 1521921
F2v_flip 1554495
F2x_flip 1554495
F2m_flip 1554496
F2x_div 1572482
uutoQ 1600198
nf_get_roots 1628957
bnf_get_gen 1680324
ulogint 1712879
vec_ei 1713872
mkvecsmall5 1717516
gsubgs 1724815
nf_get_roundG 1748195
abgrp_get_gen 1765037
ellinf 1870119
modpr_get_p 1887627
get_F2x_degree 1928998
killblock 1958807
Flx_div 1998057
ellnf_get_nf 2027253
ellff_get_field 2036872
bnr_get_bid 2046101
ell_get_j 2126269
bid_get_MOD 2157255
bid_get_sprk 2157982
ZXQ_mul 2161084
zv_copy 2183731
bid_get_fact2 2201579
gc_slice 2204106
pol_xn 2249275
pari_realloc_ip 2346814
bid_get_archp 2397140
bid_get_fact 2498971
get_F2x_mod 2499342
rnf_get_degree 2506335
bnr_get_cyc 2522574
get_F2x_var 2533966
ell_get_b4 2550216
Flv_copy 2554968
mul_content 2657318
RgX_coeff 2669861
vecslicepermute 2690363
cyc_get_expo 2757553
hash_str 2758715
perm_inv 2781915
sqrtnr 2810233
zero_Flm 2829397
bnr_get_clgp 2830251
rnf_get_pol 2845192
znstar_get_pe 2869063
F2x_equal1 2874144
bnf_get_logfu 2874777
gisdouble 2996527
mkpolmod 3103724
Fq_red 3106693
bit_accuracy_mul 3175484
ZV_to_zv 3211408
identity_perm 3241476
F3m_coeff 3255870
identity_zv 3265680
znstar_get_conreygen 3290176
ell_get_b8 3297414
get_FpX_mod 3394356
vec_append 3465135
zero_F2v 3647751
bid_get_U 3680235
bnf_get_cyc 3686163
bnr_get_bnf 3710945
nf_get_index 3711400
pol_1 3755664
pol_x 3857068
ell_get_b6 3863115
mulsubii 3881417
pol1_F2x 3957286
vec_to_vecsmall 4036661
vecsmall_append 4099611
sqrfrac 4148132
vecsmall_copy 4403806
mkcol2s 4416244
F2x_equal 4675841
FpXQX_renormalize 4694415
mkmat 4750920
qfb_disc3 4996109
mkfraccopy 4999786
is_rational_t 5032561
bnf_get_clgp 5375033
nf_get_zkprimpart 5414014
nf_get_zkden 5459770
FpX_div 5581256
checkell_i 5593293
isintm1 5710162
bid_get_cyc 5739847
bid_get_grp 5804696
pari_stack_delete 5894731
col_ei 5924598
pari_stack_init 6348419
get_FpX_degree 6424390
Flm_copy 6433527
sqrti 6610251
get_FpX_var 6958198
RgX_div 7000642
vecsmall_lexcmp 7043259
ell_get_a2 7106180
ZM_lll 7118002
RgX_gtofp 7144779
znstar_get_faN 7331711
ell_get_b2 7371045
ZX_is_monic 7374291
zc_to_ZC 7824519
vecsmall_to_col 7838701
znstar_get_conreycyc 7979693
F2m_coeff 8039218
Q_abs 8062648
mkintmod 8092869
ZV_ZV_mod 8131553
RgM_gtofp 8258368
Flx_equal1 8329974
gc_INT_affii 8492485
ell_get_a4 8536721
Flm_row 8741262
ell_get_a3 8814066
ell_get_a1 8997099
cxtofp 9079751
veclast 9372702
ismpzero 9584617
is_intreal_t 9584709
const_col 9729682
RgM_dimensions 9741743
nf_get_invzk 9767653
bnf_get_nf 9865205
mkvec4 10093830
ser_isexactzero 10120284
ell_get_a6 10370959
mkcol 10639796
ZC_hnfrem 10697412
mul_denom 10707537
ell_get_c4 11018149
Fp_addmul 11341086
vectrunc_init 11769134
pr_get_gen 12071271
abgrp_get_cyc 12230833
F2v_clear 12354341
F2x_clear 12354342
ell_get_type 12498955
nbits2nlong 12746554
pol0_F2x 13254814
ell_get_c6 13474584
gmax_shallow 13510199
modpr_get_T 13867124
zeromatcopy 14250526
rowpermute 14705563
closure_get_frame 14717047
Fp_div 15036205
Fp_divu 15130694
mkvec5 15185808
vectrunc_append 15854425
pr_get_e 16161911
ell_get_disc 16815576
matslice 16820108
normalize_frac 17206152
pr_is_inert 17224078
isint1 17584807
Fp_center_i 18032285
cxcompotor 18211274
qfb_disc 18502521
mkvecsmall4 18686173
const_vecsmall 19706312
vecpermute 20547565
Fp_double 21179040
Flx_div_pre 21687720
nf_get_M 21746126
RgM_shallowcopy 22179650
RgX_is_ZX 22423468
gmulgs 22610112
Fp_inv 23441057
nf_get_r1 23466492
ZV_isscalar 23675367
get_Flx_mod 25595536
pr_get_f 26443039
RgX_equal_var 26883018
shallowcopy 27632000
mkqfb 27930360
zerovec 28453572
modpr_get_pr 31236644
Fp_neg 31478474
hash_str_len 31630502
submulii 31982591
RgV_is_ZV 32158282
mkmat2 33654782
RgC_gtofp 34033711
const_vec 34565638
zero_zv 36734581
polx_Flx 37485605
lincombii 38228886
znstar_get_N 38655073
mkfrac 41641910
zeropol 42354017
powii 43130453
is_vec_t 43960378
closure_is_variadic 45904055
absfrac 46638770
guncloneNULL 48024964
pr_get_tau 49768125
mkmat22 50289127
ell_is_inf 52468763
QV_isscalar 54415330
pol1_Flx 55058638
addmuliu_inplace 59649680
zero_Flv 59672055
submuliu_inplace 60146125
F2x_copy 60595120
gtodouble 60782004
is_real_t 62062465
qfb_is_qfi 62324851
Fp_sqr 64908395
get_Flx_var 68357852
Fp_mulu 70268906
mkvec 71238541
nf_get_degree 71369645
Fp_center 77302563
vecsmallpermute 78703445
rowslice 79340340
sqrtr 80378601
perm_mul 80898558
Fp_red 82195077
pol_0 82996653
get_Flx_degree 83530564
gtos 85855603
is_noncalc_t 85871916
cxnorm 91200230
mkcomplex 91612144
pr_get_p 92750227
dbllog2r 92817270
nf_get_pol 98108852
vecsmalltrunc_append 100834147
F2v_set 101404044
cgiv 102687551
RgX_copy 103406732
pol0_Flx 103505562
prec2nbits 103973280
mkvecsmall3 104183850
vecsmall_prefixcmp 108088071
gc_all 109638491
F2x_renormalize 115391557
mkvec3 121792821
zerocol 122337790
gaddgs 123248587
both_odd 123969896
F2x_set 124755535
nchar2nlong 127564227
mkvecsmall 131668478
equalim1 139505446
bit_prec 143261904
FpX_renormalize 144223655
ZX_renormalize 155057396
mkcol2 156924209
nbrows 157469088
leading_coeff 170262152
Flx_copy 173230929
Fp_add 181615888
mkvec2 184372909
nbits2prec 186135045
vecsmalltrunc_init 187963752
Fp_mul 200992555
Fp_sub 203266188
mkvecsmall2 234995452
gtofp 254333156
gc_GEN 255547657
gmulgu 282059385
lg_increase 313672541
closure_get_data 322108672
closure_get_oper 322137338
closure_codestr 322145558
is_universal_constant 326773753
lgcols 351615843
closure_arity 372565213
is_scalar_t 375658239
bin_copy 496069447
pari_free 509576899
is_bigint 563414037
leafcopy_avma 577573941
vecslice 656488429
is_matvec_t 659587093
F2v_coeff 661324597
F2x_coeff 667871861
pari_malloc 745487604
pari_stack_new 926917112
GENbinbase 961913792
pari_stack_alloc 1022229686
pari_stack_base 1028084397
gc_leaf 1142591273
equali1 1174393353
nbits2extraprec 1458717288
gc_upto 1954719476
odd 2090895035
is_pm1 2206378532
lgpol 2695418027
isintzero 2845479991
bit_accuracy 3160812273
gc_INT 4113204509
prec2lg 4473093236
is_const_t 4901714100
degpol 5511575879
remsBIL 8006533228
icopy_avma 8041990468
divsBIL 8097745063
isonstack 8283076356
is_recursive_t 9238355449

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