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
F2m_coeff 8039218
F2m_copy 200435
F2m_flip 1554496
F2m_set 798
F2v_clear 12354341
F2v_coeff 661324597
F2v_copy 4487
F2v_ei 42
F2v_flip 1554495
F2v_set 101404044
F2v_to_F2x 37848
F2xX_shift 0
F2x_clear 12354342
F2x_coeff 667871861
F2x_copy 60595120
F2x_div 1572482
F2x_equal 4675841
F2x_equal1 2874144
F2x_flip 1554495
F2x_renormalize 115391557
F2x_set 124755535
F2xqX_div 33173
F3m_coeff 3255870
F3m_copy 0
F3m_set 0
Flm_copy 6433527
Flm_row 8741262
Flv_copy 2554968
Flx_constant 334020
Flx_copy 173230929
Flx_div 1998057
Flx_div_pre 21687720
Flx_equal1 8329974
Flx_lead 978253
Flx_mulu 1105438
FlxqX_div 0
FlxqX_div_pre 165414
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4694415
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849917
FpXY_Fq_evaly 20587
FpX_div 5581256
FpX_renormalize 144223655
Fp_add 181615888
Fp_addmul 11341086
Fp_center 77302563
Fp_center_i 18032285
Fp_div 15036205
Fp_divu 15130694
Fp_double 21179040
Fp_halve 247271
Fp_inv 23441057
Fp_invsafe 1100362
Fp_mul 200992555
Fp_muls 17780
Fp_mulu 70268906
Fp_neg 31478474
Fp_red 82195077
Fp_sqr 64908395
Fp_sub 203266188
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 571434
FqX_Fq_mul 427286
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38568
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 444665
FqX_factor 140946
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 367704
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 3106693
Fq_to_FpXQ 73652
GENbinbase 961913792
QV_isscalar 54415330
Q_abs 8062648
Q_abs_shallow 120243
Qtoss 35322
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619857
RgC_gtofp 34033711
RgC_gtomp 574
RgM_dimensions 9741743
RgM_fpnorml2 22662
RgM_gtofp 8258368
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22179650
RgV_gtofp 56
RgV_is_QV 140735
RgV_is_ZV 32158282
RgV_isin 110144
RgV_isin_i 110144
RgV_isscalar 1210270
RgXQX_div 1904
RgXQX_rem 127635
RgX_coeff 2669861
RgX_copy 103406732
RgX_div 7000642
RgX_equal_var 26883018
RgX_fpnorml2 61496
RgX_gtofp 7144779
RgX_is_QX 399930
RgX_is_ZX 22423468
RgX_is_monomial 1331336
RgX_is_rational 68165
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479366
RgX_shift_inplace_init 479366
RgX_to_RgV 140
Rg_col_ei 1450957
Rg_to_Fq 756
ZC_hnfrem 10697412
ZM_ZV_mod 596479
ZM_hnfrem 363805
ZM_lll 7118002
ZV_ZV_mod 8131553
ZV_dvd 23485
ZV_isscalar 23675367
ZV_to_zv 3211408
ZXQ_mul 2161084
ZXQ_sqr 960351
ZX_equal1 12850
ZX_is_monic 7374291
ZX_renormalize 155057396
Z_ispower 98
Z_issquare 458707
abgrp_get_cyc 12230833
abgrp_get_gen 1765037
abgrp_get_no 354944
absfrac 46638770
absfrac_shallow 28237
addmuliu 535736
addmuliu_inplace 59649680
affc_fixlg 249624
affgr 898901
bid_get_MOD 2157255
bid_get_U 3680235
bid_get_arch 41188
bid_get_archp 2397140
bid_get_cyc 5739847
bid_get_fact 2498971
bid_get_fact2 2201579
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804696
bid_get_ideal 72842
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157982
bin_copy 496069447
bit_accuracy 3160812273
bit_accuracy_mul 3175484
bit_prec 143261904
bnf_get_clgp 5375033
bnf_get_cyc 3686163
bnf_get_fu 25859
bnf_get_fu_nocheck 289091
bnf_get_gen 1680324
bnf_get_logfu 2874777
bnf_get_nf 9865205
bnf_get_no 8372
bnf_get_reg 648
bnf_get_sunits 1367775
bnf_get_tuN 283003
bnf_get_tuU 303583
bnr_get_bid 2046101
bnr_get_bnf 3710945
bnr_get_clgp 2830251
bnr_get_cyc 2522574
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77119
bnr_get_nf 1399085
bnr_get_no 277489
both_odd 123969896
cbrtr 0
cbrtr_abs 0
cgetalloc 10166
cgetc 975459
cgiv 102687551
checkell_i 5593293
closure_arity 372565213
closure_codestr 322145558
closure_get_code 0
closure_get_data 322108672
closure_get_dbg 13635
closure_get_frame 14717047
closure_get_oper 322137338
closure_get_text 37079
closure_is_variadic 45904055
col_ei 5924598
coltrunc_init 740250
const_col 9729682
const_vec 34565638
const_vecsmall 19706312
constant_coeff 1441146
cxcompotor 18211274
cxnorm 91200230
cxtofp 9079751
cxtoreal 337206
cyc_get_expo 2757553
cyclic_perm 99911
dbllog2r 92817270
degpol 5511575879
div_content 58505
divsBIL 8097745063
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 8997099
ell_get_a2 7106180
ell_get_a3 8814066
ell_get_a4 8536721
ell_get_a6 10370959
ell_get_b2 7371045
ell_get_b4 2550216
ell_get_b6 3863115
ell_get_b8 3297414
ell_get_c4 11018149
ell_get_c6 13474584
ell_get_disc 16815576
ell_get_j 2126269
ell_get_type 12498955
ell_is_inf 52468763
ellff_get_a4a6 800047
ellff_get_field 2036872
ellinf 1870119
ellnf_get_bnf 119
ellnf_get_nf 2027253
equali1 1174393353
equalim1 139505446
err_get_compo 294
err_get_num 62551
gaddgs 123248587
gal_get_den 27867
gal_get_e 91
gal_get_gen 15435
gal_get_group 80388
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 255547657
gc_INT 4113204509
gc_INT_affii 8492485
gc_all 109638491
gc_leaf 1142591273
gc_slice 2204106
gc_upto 1954719476
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 1269713
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928998
get_F2x_mod 2499342
get_F2x_var 2533966
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 83530564
get_Flx_mod 25595536
get_Flx_var 68357852
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 6424390
get_FpX_mod 3394356
get_FpX_var 6958198
gisdouble 2996527
gmax_shallow 13510199
gmaxsg 0
gmin_shallow 877676
gminsg 0
gmulgs 22610112
gmulgu 282059385
gsubgs 1724815
gtodouble 60782004
gtofp 254333156
gtomp 22428
gtos 85855603
gtou 99518
guncloneNULL 48024964
guncloneNULL_deep 1510115
gval 6230
hash_str 2758715
hash_str_len 31630502
icopy_avma 8041990468
idealchineseinit 5427
idealred 138443
identity_ZV 8113
identity_perm 3241476
identity_zv 3265680
inf_get_sign 1452937
inv_content 0
is_bigint 563414037
is_const_t 4901714100
is_extscalar_t 6876
is_intreal_t 9584709
is_matvec_t 659587093
is_noncalc_t 85871916
is_pm1 2206378532
is_qfb_t 0
is_rational_t 5032561
is_real_t 62062465
is_recursive_t 9238355449
is_scalar_t 375658239
is_universal_constant 326773753
is_vec_t 43960378
isint1 17584807
isintm1 5710162
isintzero 2845479991
ismpzero 9584617
isonstack 8283076356
killblock 1958807
leading_coeff 170262152
leafcopy_avma 577573941
lg_increase 313672541
lgcols 351615843
lgpol 2695418027
lincombii 38228886
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 754834
matpascal 3983
matslice 16820108
mkcol 10639796
mkcol2 156924209
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33561
mkcols 40411
mkcomplex 91612144
mkerr 0
mkfrac 41641910
mkfraccopy 4999786
mkfracss 1209563
mkintmod 8092869
mkintmodu 1813
mkmat 4750920
mkmat2 33654782
mkmat22 50289127
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122273
mkmoo 108798
mkoo 1331880
mkpadic 2009
mkpolmod 3103724
mkqfb 27930360
mkquad 69118
mkrfrac 698439
mkrfraccopy 14
mkvec 71238541
mkvec2 184372909
mkvec2copy 114530
mkvec2s 220250
mkvec3 121792821
mkvec3s 524441
mkvec4 10093830
mkvec4s 21
mkvec5 15185808
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122521
mkvecs 168
mkvecsmall 131668478
mkvecsmall2 234995452
mkvecsmall3 104183850
mkvecsmall4 18686173
mkvecsmall5 1717516
modpr_get_T 13867124
modpr_get_p 1887627
modpr_get_pr 31236644
mul_content 2657318
mul_denom 10707537
mulsubii 3881417
nbits2extraprec 1458717288
nbits2ndec 228
nbits2nlong 12746554
nbits2prec 186135045
nbrows 157469088
nchar2nlong 127564227
ndec2nbits 8270
ndec2nlong 41584
ndec2prec 33314
nfV_to_scalar_or_alg 26299
nf_get_G 304881
nf_get_M 21746126
nf_get_Tr 22085
nf_get_degree 71369645
nf_get_diff 4445
nf_get_disc 463478
nf_get_index 3711400
nf_get_invzk 9767653
nf_get_pol 98108852
nf_get_r1 23466492
nf_get_r2 4154
nf_get_ramified_primes 64645
nf_get_roots 1628957
nf_get_roundG 1748195
nf_get_sign 519552
nf_get_varn 1503789
nf_get_zk 4382
nf_get_zkden 5459770
nf_get_zkprimpart 5414014
normalize_frac 17206152
odd 2090895035
pari_calloc 47720
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 509576899
pari_malloc 745487604
pari_realloc 1890
pari_realloc_ip 2346814
pari_stack_alloc 1022229686
pari_stack_base 1028084397
pari_stack_delete 5894731
pari_stack_init 6348419
pari_stack_new 926917112
pari_stack_pushp 5851
perm_conj 418299
perm_inv 2781915
perm_mul 80898558
perm_sqr 728
pol0_F2x 13254814
pol0_Flx 103505562
pol1_F2x 3957286
pol1_Flx 55058638
pol_0 82996653
pol_1 3755664
pol_x 3857068
pol_xn 2249275
pol_xnall 294
polx_F2x 1079162
polx_Flx 37485605
polx_zx 0
polxn_Flx 371
powIs 1561
powii 43130453
pr_get_e 16161911
pr_get_f 26443039
pr_get_gen 12071271
pr_get_p 92750227
pr_get_tau 49768125
pr_is_inert 17224078
pr_norm 1090479
prec2lg 4473093236
prec2nbits 103973280
prec2nbits_mul 581163
prec2ndec 9778
precdbl 475370
qfb_disc 18502521
qfb_disc3 4996109
qfb_is_qfi 62324851
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8006533228
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 763885
row_i 987
rowcopy 204988
rowpermute 14705563
rowslice 79340340
rowslicepermute 185041
rowsplice 273
ser_isexactzero 10120284
shallowcopy 27632000
sqrfrac 4148132
sqrti 6610251
sqrtnr 2810233
sqrtr 80378601
sstoQ 1097215
sturm 385
submulii 31982591
submuliu 7700
submuliu_inplace 60146125
truecoef 0
trunc_safe 0
ulogint 1712879
upr_norm 346134
uutoQ 1600198
vec_append 3465135
vec_ei 1713872
vec_lengthen 18960
vec_prepend 314002
vec_setconst 0
vec_shorten 11557
vec_to_vecsmall 4036661
veclast 9372702
vecmodii 0
vecmoduu 49784
vecpermute 20547565
vecreverse 697277
vecreverse_inplace 2605
vecslice 656488429
vecslicepermute 2690363
vecsmall_append 4099611
vecsmall_coincidence 0
vecsmall_concat 1464228
vecsmall_copy 4403806
vecsmall_ei 584729
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043259
vecsmall_max 1164222
vecsmall_min 2345
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186970
vecsmall_reverse 3052
vecsmall_shorten 75640
vecsmall_to_col 7838701
vecsmall_to_vec 511781
vecsmall_to_vec_inplace 3304
vecsmallpermute 78703445
vecsmalltrunc_append 100834147
vecsmalltrunc_init 187963752
vecsplice 384929
vectrunc_append 15854425
vectrunc_append_batch 9667
vectrunc_init 11769134
zc_to_ZC 7824519
zero_F2m 0
zero_F2m_copy 845057
zero_F2v 3647751
zero_F2x 1350
zero_Flm 2829397
zero_Flm_copy 238226
zero_Flv 59672055
zero_Flx 1427077
zero_zm 0
zero_zv 36734581
zero_zx 0
zerocol 122337790
zeromat 109096
zeromatcopy 14250526
zeropadic 855265
zeropadic_shallow 17024
zeropol 42354017
zeroser 138908
zerovec 28453572
zerovec_block 29654
zm_copy 0
zm_row 0
zm_to_zxV 0
zm_transpose 266
znstar_get_N 38655073
znstar_get_U 176107
znstar_get_Ui 46788
znstar_get_conreycyc 7979693
znstar_get_conreygen 3290176
znstar_get_cyc 262088
znstar_get_faN 7331711
znstar_get_gen 16150
znstar_get_no 14
znstar_get_pe 2869063
zv_copy 2183731
zv_to_ZV 502982
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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