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 30861-40e9da58f9) Lines: 1421 1535 92.6 %
Date: 2026-05-04 09:27:01 Functions: 650 707 91.9 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
F2m_clear 0
F2m_coeff 8359018
F2m_copy 200667
F2m_flip 1554269
F2m_set 798
F2v_clear 12361779
F2v_coeff 664437750
F2v_copy 4487
F2v_ei 42
F2v_flip 1554269
F2v_set 104115074
F2v_to_F2x 38052
F2xX_shift 0
F2x_clear 12361775
F2x_coeff 671068520
F2x_copy 64599310
F2x_div 1572024
F2x_equal 4192478
F2x_equal1 2873723
F2x_flip 1554269
F2x_renormalize 127860235
F2x_set 130003603
F2xqX_div 33173
F3m_coeff 3255553
F3m_copy 0
F3m_set 0
Flm_copy 6435839
Flm_row 8743060
Flv_copy 2058938
Flx_constant 1091772
Flx_copy 175941788
Flx_div 1999823
Flx_div_pre 21725056
Flx_equal1 8200688
Flx_lead 1068936
Flx_mulu 1105409
FlxqX_div 0
FlxqX_div_pre 165413
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4526
FpXQX_renormalize 4688918
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 849322
FpXY_Fq_evaly 20587
FpX_div 5583710
FpX_renormalize 147098822
Fp_add 183361884
Fp_addmul 11243718
Fp_center 77302864
Fp_center_i 18057519
Fp_div 15034823
Fp_divu 15129366
Fp_double 20858069
Fp_halve 247271
Fp_inv 23416676
Fp_invsafe 1097242
Fp_mul 203814230
Fp_muls 17780
Fp_mulu 66622235
Fp_neg 32672373
Fp_red 82930979
Fp_sqr 63863106
Fp_sub 201467604
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 576285
FqX_Fq_mul 427296
FqX_add 127694
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 40061
FqX_div 38569
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 447453
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 368760
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 3106540
Fq_to_FpXQ 73652
GENbinbase 920314120
QV_isscalar 54428478
Q_abs 8125750
Q_abs_shallow 120226
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 619957
RgC_gtofp 34032992
RgC_gtomp 574
RgM_dimensions 9955217
RgM_fpnorml2 22788
RgM_gtofp 8257775
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22234703
RgV_gtofp 56
RgV_is_QV 142050
RgV_is_ZV 32100569
RgV_isin 110158
RgV_isin_i 110158
RgV_isscalar 1211817
RgXQX_div 1904
RgXQX_rem 127915
RgX_coeff 2908792
RgX_copy 102879016
RgX_div 6998920
RgX_equal_var 27139615
RgX_fpnorml2 63070
RgX_gtofp 7166483
RgX_is_QX 400072
RgX_is_ZX 22395277
RgX_is_monomial 1328333
RgX_is_rational 68286
RgX_isscalar 0
RgX_renormalize 349807
RgX_shift_inplace 479448
RgX_shift_inplace_init 479448
RgX_to_RgV 140
Rg_col_ei 1451457
Rg_to_Fq 756
ZC_hnfrem 10697425
ZM_ZV_mod 610741
ZM_hnfrem 401356
ZM_lll 7139133
ZV_ZV_mod 8147268
ZV_dvd 23485
ZV_isscalar 23678853
ZV_to_zv 3211715
ZXQ_mul 2166523
ZXQ_sqr 961542
ZX_equal1 10488
ZX_is_monic 7670883
ZX_renormalize 157615845
Z_ispower 98
Z_issquare 509458
abgrp_get_cyc 12234637
abgrp_get_gen 1766576
abgrp_get_no 406746
absfrac 47977059
absfrac_shallow 28237
addmuliu 541644
addmuliu_inplace 59630408
affc_fixlg 250436
affgr 795161
bid_get_MOD 2157259
bid_get_U 3680238
bid_get_arch 41188
bid_get_archp 2397118
bid_get_cyc 5739833
bid_get_fact 2498911
bid_get_fact2 2201581
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804682
bid_get_ideal 72849
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2157985
bin_copy 473538552
bit_accuracy 3147798846
bit_accuracy_mul 3175844
bit_prec 143405226
bnf_get_clgp 5380376
bnf_get_cyc 3689955
bnf_get_fu 25859
bnf_get_fu_nocheck 289089
bnf_get_gen 1681863
bnf_get_logfu 2877862
bnf_get_nf 9875244
bnf_get_no 8386
bnf_get_reg 648
bnf_get_sunits 1369337
bnf_get_tuN 283013
bnf_get_tuU 303596
bnr_get_bid 2046098
bnr_get_bnf 3710958
bnr_get_clgp 2830271
bnr_get_cyc 2522590
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77126
bnr_get_nf 1399095
bnr_get_no 277486
both_odd 123544306
cbrtr 0
cbrtr_abs 0
cgetalloc 10157
cgetc 976268
cgiv 105504076
checkell_i 8103766
closure_arity 356552680
closure_codestr 306103614
closure_get_code 28
closure_get_data 306065982
closure_get_dbg 13660
closure_get_frame 14694945
closure_get_oper 306084099
closure_get_text 37150
closure_is_variadic 45954671
col_ei 5927323
coltrunc_init 740257
const_col 9730217
const_vec 34656948
const_vecsmall 18863093
constant_coeff 1445633
cxcompotor 18282765
cxnorm 95132096
cxtofp 9115536
cxtoreal 338016
cyc_get_expo 2757558
cyclic_perm 99932
dbllog2r 94381825
degpol 5522096530
div_content 58510
divsBIL 8250144832
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232750
ellR_get_sign 371535
ell_get_a1 17049198
ell_get_a2 11108730
ell_get_a3 12863765
ell_get_a4 10325148
ell_get_a6 10371108
ell_get_b2 7371402
ell_get_b4 2550293
ell_get_b6 3863192
ell_get_b8 3297414
ell_get_c4 11018604
ell_get_c6 13474287
ell_get_disc 16815917
ell_get_j 2126269
ell_get_type 14945339
ell_is_inf 50203410
ellff_get_a4a6 551466
ellff_get_field 1790622
ellinf 913726
ellnf_get_bnf 119
ellnf_get_nf 2027258
equali1 1172345078
equalim1 139581434
err_get_compo 294
err_get_num 62595
gaddgs 123273239
gal_get_den 27867
gal_get_e 91
gal_get_gen 15491
gal_get_group 80414
gal_get_invvdm 27873
gal_get_mod 23870
gal_get_orders 6706
gal_get_p 6118
gal_get_pol 36427
gal_get_roots 32843
gc_GEN 247579286
gc_INT 4139591188
gc_INT_affii 11579608
gc_all 102471955
gc_leaf 1164003362
gc_slice 2211515
gc_upto 1975660279
gchar_copy_precs 1470
gchar_get_DLdata 192479
gchar_get_S 38371
gchar_get_U 0
gchar_get_Ui 11096
gchar_get_basis 34731
gchar_get_bnf 207685
gchar_get_cyc 16535
gchar_get_evalprec 4011
gchar_get_hnf 0
gchar_get_loccyc 52520
gchar_get_m0 3823
gchar_get_mod 8225
gchar_get_modP 4095
gchar_get_nalg 2296
gchar_get_nc 38876
gchar_get_nf 247942
gchar_get_nfprec 13854
gchar_get_nfree 322
gchar_get_nm 2108
gchar_get_ns 38371
gchar_get_ntors 322
gchar_get_prec 19427
gchar_get_r1 17683
gchar_get_r2 623
gchar_get_sfu 1996
gchar_get_u0 5002
gchar_get_zm 286343
gchar_set_HUUi 637
gchar_set_basis 1827
gchar_set_cyc 1827
gchar_set_evalprec 2086
gchar_set_m0 1190
gchar_set_nalg 637
gchar_set_nf 2363
gchar_set_nfprec 3466
gchar_set_nfree 637
gchar_set_ntors 637
gchar_set_prec 1470
gchar_set_u0 2142
gcmpgs 761936
gdivsg 561956
gen_I 1269151
gener_Fq_local 29946
gequalgs 29176
get_F2x_degree 1928647
get_F2x_mod 3307679
get_F2x_var 2168801
get_F2xqX_degree 200851
get_F2xqX_mod 343
get_F2xqX_var 375375
get_Flx_degree 82776238
get_Flx_mod 25515431
get_Flx_var 68295148
get_FlxqX_degree 317580
get_FlxqX_mod 8033
get_FlxqX_var 264435
get_FpXQX_degree 3589
get_FpXQX_mod 146583
get_FpXQX_var 51630
get_FpX_degree 6969351
get_FpX_mod 3387879
get_FpX_var 6952391
gisdouble 2995502
gmax_shallow 13510227
gmaxsg 0
gmin_shallow 901169
gminsg 0
gmulgs 23825570
gmulgu 283377954
gsubgs 1731743
gtodouble 66205627
gtofp 257193597
gtomp 22428
gtos 85880079
gtou 100674
guncloneNULL 49239315
guncloneNULL_deep 1505407
gval 6391
hash_str 2782958
hash_str_len 31623173
icopy_avma 8056109853
idealchineseinit 5427
idealred 139135
identity_ZV 8120
identity_perm 3243282
identity_zv 3267645
inf_get_sign 1453255
inv_content 0
is_bigint 574896099
is_const_t 5010182439
is_extscalar_t 6904
is_intreal_t 9716464
is_matvec_t 744224570
is_noncalc_t 88524328
is_pm1 2218897526
is_qfb_t 0
is_rational_t 5019527
is_real_t 61906221
is_recursive_t 9131361195
is_scalar_t 404104983
is_universal_constant 326481852
is_vec_t 44058524
isint1 18136473
isintm1 6222460
isintzero 2865725467
ismpzero 9716353
isonstack 8368598632
killblock 1955394
leading_coeff 169748900
leafcopy_avma 594967368
lg_increase 446857471
lgcols 352818342
lgpol 2630928314
lincombii 38262950
locs_get_Lgenfil 1288
locs_get_Lsprk 195755
locs_get_cyc 54144
locs_get_famod 1288
locs_get_m_infty 211534
locs_get_mod 8225
logint 757058
matpascal 4935
matslice 16825244
mkcol 10661547
mkcol2 157103284
mkcol2s 4416244
mkcol3 88314
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232470
mkcolcopy 33585
mkcols 40411
mkcomplex 92903668
mkerr 0
mkfrac 42756079
mkfraccopy 5010468
mkfracss 1209563
mkintmod 8066786
mkintmodu 1834
mkmat 4783259
mkmat2 33665116
mkmat22 50277472
mkmat22s 207578
mkmat3 17001
mkmat4 84
mkmat5 0
mkmatcopy 122318
mkmoo 108933
mkoo 1332097
mkpadic 2009
mkpolmod 3262597
mkqfb 27933894
mkquad 69118
mkrfrac 698726
mkrfraccopy 14
mkvec 68960612
mkvec2 216018288
mkvec2copy 114548
mkvec2s 220777
mkvec3 121498390
mkvec3s 524441
mkvec4 10157086
mkvec4s 21
mkvec5 15189748
mkvec5s 0
mkvec6 0
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 140600946
mkvecsmall2 257031342
mkvecsmall3 103281168
mkvecsmall4 18670497
mkvecsmall5 1718423
modpr_get_T 13867090
modpr_get_p 1887627
modpr_get_pr 31236512
mul_content 2659162
mul_denom 10755070
mulsubii 3893258
nbits2extraprec 1498805273
nbits2ndec 228
nbits2nlong 12775665
nbits2prec 189072548
nbrows 158363509
nchar2nlong 127862215
ndec2nbits 8270
ndec2nlong 41885
ndec2prec 33615
nfV_to_scalar_or_alg 26299
nf_get_G 304840
nf_get_M 21750102
nf_get_Tr 23351
nf_get_degree 71393397
nf_get_diff 4445
nf_get_disc 464447
nf_get_index 3715890
nf_get_invzk 9778503
nf_get_pol 98151709
nf_get_r1 23473296
nf_get_r2 4154
nf_get_ramified_primes 64644
nf_get_roots 1632099
nf_get_roundG 1749970
nf_get_sign 522481
nf_get_varn 1503828
nf_get_zk 4382
nf_get_zkden 5463772
nf_get_zkprimpart 5417920
normalize_frac 17574810
odd 2125356589
pari_calloc 48127
pari_err_BUG 14
pari_err_COMPONENT 214
pari_err_CONSTPOL 21
pari_err_COPRIME 91
pari_err_DIM 718
pari_err_DOMAIN 2876
pari_err_FILE 0
pari_err_FILEDESC 36
pari_err_FLAG 98
pari_err_IMPL 539
pari_err_INV 20025
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 487888139
pari_malloc 723389719
pari_realloc 1887
pari_realloc_ip 2350040
pari_stack_alloc 1006049625
pari_stack_base 1011901737
pari_stack_delete 5868361
pari_stack_init 6351403
pari_stack_new 910698563
pari_stack_pushp 5842
perm_conj 418299
perm_inv 3747433
perm_mul 80952777
perm_sqr 728
pol0_F2x 17363700
pol0_Flx 111752749
pol1_F2x 4769447
pol1_Flx 55772561
pol_0 27280863
pol_1 3753770
pol_x 3866503
pol_xn 2254017
pol_xnall 294
polx_F2x 1079355
polx_Flx 37516775
polx_zx 0
polxn_Flx 371
powIs 620095
powii 43129417
pr_get_e 16167912
pr_get_f 26448999
pr_get_gen 12076054
pr_get_p 92765434
pr_get_tau 49777547
pr_is_inert 17228093
pr_norm 1090572
prec2lg 4576882820
prec2nbits 107070839
prec2nbits_mul 581909
prec2ndec 9778
precdbl 476413
qfb_disc 18502497
qfb_disc3 4997897
qfb_is_qfi 64526159
quad_disc 1085
quadnorm 69881
random_Fq 0
remsBIL 8158597468
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 763900
row_i 987
rowcopy 204988
rowpermute 14762993
rowslice 79456801
rowslicepermute 234679
rowsplice 273
ser_isexactzero 11871118
shallowcopy 27900245
sqrfrac 4224619
sqrti 6614906
sqrtnr 2810670
sqrtr 87153671
sstoQ 1097313
sturm 385
submulii 31985175
submuliu 7700
submuliu_inplace 60130653
truecoef 0
trunc_safe 0
ulogint 2101118
upr_norm 347917
uutoQ 1602256
vec_append 3469079
vec_ei 1714809
vec_lengthen 18960
vec_prepend 313919
vec_setconst 0
vec_shorten 11564
vec_to_vecsmall 4041830
veclast 9374375
vecmodii 0
vecmoduu 49784
vecpermute 21121347
vecreverse 697305
vecreverse_inplace 2612
vecslice 657336224
vecslicepermute 2859025
vecsmall_append 4114749
vecsmall_coincidence 0
vecsmall_concat 1464564
vecsmall_copy 7341189
vecsmall_ei 585113
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7043256
vecsmall_max 1178313
vecsmall_min 3710
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 186977
vecsmall_reverse 3052
vecsmall_shorten 75754
vecsmall_to_col 7928794
vecsmall_to_vec 578148
vecsmall_to_vec_inplace 3304
vecsmallpermute 78756256
vecsmalltrunc_append 100864016
vecsmalltrunc_init 245153289
vecsplice 385270
vectrunc_append 15858430
vectrunc_append_batch 9667
vectrunc_init 11768095
zc_to_ZC 7914205
zero_F2m 0
zero_F2m_copy 845286
zero_F2v 3656650
zero_F2x 1181
zero_Flm 2830904
zero_Flm_copy 238324
zero_Flv 61997943
zero_Flx 3255872
zero_zm 0
zero_zv 39517353
zero_zx 0
zerocol 125197040
zeromat 109003
zeromatcopy 14379292
zeropadic 857472
zeropadic_shallow 17150
zeropol 12924468
zeroser 139013
zerovec 29349238
zerovec_block 29654
zm_copy 0
zm_row 0
zm_to_zxV 0
zm_transpose 266
znstar_get_N 38658755
znstar_get_U 176107
znstar_get_Ui 46788
znstar_get_conreycyc 7982136
znstar_get_conreygen 3290533
znstar_get_cyc 262088
znstar_get_faN 7334854
znstar_get_gen 16150
znstar_get_no 14
znstar_get_pe 2869070
zv_copy 1687672
zv_to_ZV 569244
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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