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) Coverage Total Hit
Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 92.5 % 1535 1420
Test Date: 2026-08-12 17:02:34 Functions: 91.8 % 707 649
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
F2m_clear 0
F2m_coeff 8463075
F2m_copy 201413
F2m_flip 1560519
F2m_set 798
F2v_clear 12464108
F2v_coeff 665815177
F2v_copy 4893
F2v_ei 42
F2v_flip 1560519
F2v_set 104219573
F2v_to_F2x 38924
F2xX_shift 0
F2x_clear 12464108
F2x_coeff 672376891
F2x_copy 66590793
F2x_div 1580159
F2x_equal 4257825
F2x_equal1 2871765
F2x_flip 1560519
F2x_renormalize 130571695
F2x_set 130219024
F2xqX_div 33187
F3m_coeff 144858
F3m_copy 0
F3m_set 0
Flm_copy 6442090
Flm_row 8755641
Flv_copy 2251351
Flx_constant 1092086
Flx_copy 196484570
Flx_div 2003306
Flx_div_pre 21819438
Flx_equal1 8248162
Flx_lead 1066342
Flx_mulu 1155304
FlxqX_div 0
FlxqX_div_pre 165917
Flxq_add 0
Flxq_sub 0
FpV_FpC_mul 0
FpXQX_div 4519
FpXQX_renormalize 4641915
FpXQ_add 0
FpXQ_sub 0
FpXX_renormalize 782142
FpXY_Fq_evaly 20405
FpX_div 5609830
FpX_renormalize 146568173
Fp_add 185289612
Fp_addmul 11401746
Fp_center 78865228
Fp_center_i 18207590
Fp_div 14993223
Fp_divu 15087843
Fp_double 21554217
Fp_halve 243517
Fp_inv 23544782
Fp_invsafe 1098687
Fp_mul 205132259
Fp_muls 17640
Fp_mulu 69499633
Fp_neg 37724304
Fp_red 83002601
Fp_sqr 69455938
Fp_sub 203999030
FqXQ_add 0
FqXQ_div 0
FqXQ_inv 0
FqXQ_invsafe 0
FqXQ_mul 22745
FqXQ_pow 0
FqXQ_sqr 0
FqXQ_sub 0
FqX_Fp_mul 579675
FqX_Fq_mul 424510
FqX_add 124082
FqX_ddf 7
FqX_degfact 47786
FqX_deriv 39697
FqX_div 38569
FqX_div_by_X_x 69699
FqX_divrem 0
FqX_extgcd 449758
FqX_factor 140960
FqX_factor_squarefree 7
FqX_gcd 8288
FqX_get_red 6069
FqX_halfgcd 0
FqX_halve 19250
FqX_integ 0
FqX_is_squarefree 683718
FqX_mul 369137
FqX_mulu 21900
FqX_neg 24900
FqX_normalize 4144
FqX_powu 1288
FqX_red 25298
FqX_rem 37659
FqX_roots 7231
FqX_sqr 71232
FqX_sub 68026
FqX_to_mod 175
FqXn_exp 0
FqXn_expint 6590
FqXn_inv 7070
FqXn_mul 261240
FqXn_sqr 0
Fq_red 3109642
Fq_to_FpXQ 73652
GENbinbase 934025804
QV_isscalar 54425634
Q_abs 8131140
Q_abs_shallow 127658
Qtoss 35364
R_abs 0
R_abs_shallow 13097
RgC_fpnorml2 620024
RgC_gtofp 34121291
RgC_gtomp 574
RgM_dimensions 9956283
RgM_fpnorml2 23337
RgM_gtofp 8264089
RgM_gtomp 21
RgM_minor 1036
RgM_shallowcopy 22268916
RgV_gtofp 56
RgV_is_QV 142058
RgV_is_ZV 32132602
RgV_isin 111958
RgV_isin_i 111958
RgV_isscalar 1211819
RgXQX_div 1904
RgXQX_rem 127908
RgX_coeff 2909086
RgX_copy 103803583
RgX_div 7001097
RgX_equal_var 27145972
RgX_fpnorml2 62766
RgX_gtofp 7174016
RgX_is_QX 400124
RgX_is_ZX 22521851
RgX_is_monomial 1346286
RgX_is_rational 68841
RgX_isscalar 0
RgX_renormalize 34135
RgX_shift_inplace 479615
RgX_shift_inplace_init 479615
RgX_to_RgV 140
Rg_col_ei 1472492
Rg_to_Fq 756
ZC_hnfrem 10699713
ZM_ZV_mod 610980
ZM_hnfrem 401504
ZM_lll 7142345
ZV_ZV_mod 8147958
ZV_dvd 23485
ZV_isscalar 23697062
ZV_to_zv 3318880
ZXQ_mul 2192270
ZXQ_sqr 963427
ZX_equal1 10514
ZX_is_monic 7723192
ZX_renormalize 158601618
Z_ispower 98
Z_issquare 509836
abgrp_get_cyc 12235183
abgrp_get_gen 1766677
abgrp_get_no 407115
absfrac 48084658
absfrac_shallow 13097
addmuliu 549697
addmuliu_inplace 66040101
affc_fixlg 250436
affgr 665850
bid_get_MOD 2157304
bid_get_U 3680282
bid_get_arch 41188
bid_get_archp 2397285
bid_get_cyc 5740019
bid_get_fact 2499065
bid_get_fact2 2201621
bid_get_gen 64274
bid_get_gen_nocheck 0
bid_get_grp 5804874
bid_get_ideal 72849
bid_get_mod 1521921
bid_get_no 0
bid_get_sarch 48594
bid_get_sprk 2158039
bin_copy 480530265
bit_accuracy 3221896372
bit_accuracy_mul 3176882
bit_prec 0
bnf_get_clgp 5380463
bnf_get_cyc 3689996
bnf_get_fu 25859
bnf_get_fu_nocheck 289112
bnf_get_gen 1681899
bnf_get_logfu 2877898
bnf_get_nf 9875390
bnf_get_no 8386
bnf_get_reg 648
bnf_get_sunits 1369339
bnf_get_tuN 283031
bnf_get_tuU 303613
bnr_get_bid 2046122
bnr_get_bnf 3710982
bnr_get_clgp 2830388
bnr_get_cyc 2522682
bnr_get_gen 7847
bnr_get_gen_nocheck 70
bnr_get_mod 77126
bnr_get_nf 1399132
bnr_get_no 277494
both_odd 124811463
cbrtr 0
cbrtr_abs 0
cgetalloc 10153
cgetc 976273
cgiv 106110493
checkell_i 10953999
closure_arity 333310638
closure_codestr 282757716
closure_get_code 28
closure_get_data 282744318
closure_get_dbg 13674
closure_get_frame 14758144
closure_get_oper 282757715
closure_get_text 37178
closure_is_variadic 46077415
col_ei 5929156
coltrunc_init 740376
const_col 9731366
const_vec 34729197
const_vecsmall 18941281
constant_coeff 1065058
cxcompotor 18768728
cxnorm 95488819
cxtofp 9249822
cxtoreal 338020
cyc_get_expo 2757632
cyclic_perm 99932
dbllog2r 94964494
degpol 5635293149
div_content 58501
divsBIL 8489929772
ellQp_get_p 1134
ellQp_get_prec 308
ellQp_get_zero 1463
ellR_get_prec 232939
ellR_get_sign 371829
ell_get_a1 17419113
ell_get_a2 11293907
ell_get_a3 13229529
ell_get_a4 10507532
ell_get_a6 10552239
ell_get_b2 7552261
ell_get_b4 2550719
ell_get_b6 3863695
ell_get_b8 3297567
ell_get_c4 13707231
ell_get_c6 16166552
ell_get_disc 18144802
ell_get_j 2126895
ell_get_type 22946872
ell_is_inf 59345509
ellff_get_a4a6 551887
ellff_get_field 1791841
ellinf 1097909
ellnf_get_bnf 119
ellnf_get_nf 2027312
equali1 1180126117
equalim1 139584442
err_get_compo 294
err_get_num 439305
gaddgs 123273818
gal_get_den 27867
gal_get_e 91
gal_get_gen 15624
gal_get_group 80528
gal_get_invvdm 27874
gal_get_mod 23870
gal_get_orders 6713
gal_get_p 6118
gal_get_pol 36428
gal_get_roots 32844
gc_GEN 238015702
gc_INT 4194941700
gc_INT_affii 11658860
gc_all 103409651
gc_leaf 1202322897
gc_slice 2217961
gc_upto 2017993966
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 761951
gdivsg 561958
gen_I 1269371
gener_Fq_local 29946
gequalgs 29246
get_F2x_degree 1936488
get_F2x_mod 3310984
get_F2x_var 2176551
get_F2xqX_degree 201185
get_F2xqX_mod 343
get_F2xqX_var 376106
get_Flx_degree 82449693
get_Flx_mod 25663124
get_Flx_var 69188254
get_FlxqX_degree 320067
get_FlxqX_mod 8033
get_FlxqX_var 266299
get_FpXQX_degree 3569
get_FpXQX_mod 146583
get_FpXQX_var 51430
get_FpX_degree 8094100
get_FpX_mod 3391335
get_FpX_var 6879859
gisdouble 2992485
gmax_shallow 13510257
gmaxsg 0
gmin_shallow 902753
gminsg 0
gmulgs 29791499
gmulgu 283377954
gsubgs 1731852
gtodouble 66289994
gtofp 260496078
gtomp 22428
gtos 85888582
gtou 102019
guncloneNULL 48998146
guncloneNULL_deep 1555389
gval 6391
hash_str 2787689
hash_str_len 31645691
icopy_avma 8133535058
idealchineseinit 5427
idealred 139130
identity_ZV 8120
identity_perm 3260269
identity_zv 3284632
inf_get_sign 1454540
inv_content 0
is_bigint 592051710
is_const_t 5001861917
is_extscalar_t 6904
is_intreal_t 9716621
is_matvec_t 639749234
is_noncalc_t 86219217
is_pm1 2306125346
is_qfb_t 0
is_rational_t 5304086
is_real_t 62080967
is_recursive_t 9575905817
is_scalar_t 376860440
is_universal_constant 334915418
is_vec_t 44253516
isint1 18256862
isintm1 6224698
isintzero 2911175240
ismpzero 9716530
isonstack 8499413956
killblock 1982429
leading_coeff 169548046
leafcopy_avma 586453977
lg_increase 473403935
lgcols 354526083
lgpol 2766013299
lincombii 38351919
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 757174
matpascal 4935
matslice 16931885
mkcol 10667550
mkcol2 168884027
mkcol2s 4416244
mkcol3 88320
mkcol3s 315
mkcol4 103467
mkcol4s 0
mkcol5 94
mkcol6 232582
mkcolcopy 33562
mkcols 40411
mkcomplex 93008752
mkerr 0
mkfrac 54557565
mkfraccopy 5217048
mkfracss 1209605
mkintmod 8073882
mkintmodu 1834
mkmat 4783065
mkmat2 33670183
mkmat22 54535850
mkmat22s 207578
mkmat3 17003
mkmat4 84
mkmat5 0
mkmatcopy 122341
mkmoo 108950
mkoo 1333368
mkpadic 2009
mkpolmod 3297287
mkqfb 28269083
mkquad 69118
mkrfrac 698726
mkrfraccopy 14
mkvec 70143127
mkvec2 222395433
mkvec2copy 114572
mkvec2s 221667
mkvec3 120795620
mkvec3s 524441
mkvec4 10533199
mkvec4s 21
mkvec5 15190596
mkvec5s 0
mkvec6 42
mkvec6s 301
mkveccopy 122528
mkvecs 168
mkvecsmall 143633297
mkvecsmall2 262031014
mkvecsmall3 106868457
mkvecsmall4 20242471
mkvecsmall5 1898410
modpr_get_T 13867549
modpr_get_p 1887627
modpr_get_pr 31237605
mul_content 2672448
mul_denom 10788680
mulsubii 3898606
nbits2extraprec 918245205
nbits2ndec 0
nbits2nlong 620909253
nbits2prec 189571269
nbrows 159343138
nchar2nlong 127833796
ndec2nbits 8270
ndec2nlong 41829
ndec2prec 33559
nfV_to_scalar_or_alg 26300
nf_get_G 304611
nf_get_M 21751263
nf_get_Tr 23352
nf_get_degree 71319330
nf_get_diff 4445
nf_get_disc 464443
nf_get_index 3716983
nf_get_invzk 9782852
nf_get_pol 98102321
nf_get_r1 23476300
nf_get_r2 4154
nf_get_ramified_primes 65098
nf_get_roots 1632844
nf_get_roundG 1749539
nf_get_sign 522482
nf_get_varn 1504035
nf_get_zk 4382
nf_get_zkden 5465400
nf_get_zkprimpart 5419676
normalize_frac 28146678
odd 2140043549
pari_calloc 48209
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 20032
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 70
pari_err_SQRTN 7084
pari_err_TYPE 15370
pari_err_TYPE2 3493
pari_err_VAR 371
pari_free 494846007
pari_malloc 730390086
pari_realloc 1887
pari_realloc_ip 2385332
pari_stack_alloc 982163215
pari_stack_base 988232713
pari_stack_delete 6063652
pari_stack_init 6446225
pari_stack_new 886697605
pari_stack_pushp 5840
perm_conj 422429
perm_inv 3781184
perm_mul 81655537
perm_sqr 728
pol0_F2x 17424196
pol0_Flx 114778714
pol1_F2x 4775965
pol1_Flx 56078273
pol_0 84220472
pol_1 3762739
pol_x 3886980
pol_xn 2237771
pol_xnall 294
polx_F2x 1083605
polx_Flx 37978215
polx_zx 0
polxn_Flx 371
powIs 620095
powii 43757787
pr_get_e 16165097
pr_get_f 26447643
pr_get_gen 12077794
pr_get_p 92765855
pr_get_tau 49777597
pr_is_inert 17227704
pr_norm 1090616
prec2lg 4749127056
prec2nbits 93803669
prec2nbits_mul 581910
prec2ndec 9778
precdbl 476753
qfb_disc 18522403
qfb_disc3 5001818
qfb_is_qfi 65330241
quad_disc 1379
quadnorm 70105
random_Fq 0
remsBIL 8395427206
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 767844
row_i 987
rowcopy 204988
rowpermute 14794480
rowslice 80072451
rowslicepermute 234174
rowsplice 273
ser_isexactzero 11871524
shallowcopy 27955839
sqrfrac 4399612
sqrti 6618451
sqrtnr 2811943
sqrtr 87242184
sstoQ 1097313
sturm 385
submulii 33037982
submuliu 7700
submuliu_inplace 66554090
truecoef 0
trunc_safe 0
ulogint 2111962
upr_norm 347921
uutoQ 1602256
vec_append 3470862
vec_ei 1716796
vec_lengthen 18983
vec_prepend 313943
vec_setconst 0
vec_shorten 11564
vec_to_vecsmall 4149430
veclast 9557833
vecmodii 0
vecmoduu 49784
vecpermute 21130560
vecreverse 697305
vecreverse_inplace 2612
vecslice 670249733
vecslicepermute 2880622
vecsmall_append 4117796
vecsmall_coincidence 0
vecsmall_concat 1466208
vecsmall_copy 7353910
vecsmall_ei 585549
vecsmall_indexmax 21
vecsmall_indexmin 21
vecsmall_isin 84
vecsmall_lengthen 547
vecsmall_lexcmp 7211133
vecsmall_max 1177915
vecsmall_min 5509
vecsmall_pack 84
vecsmall_prefixcmp 108088071
vecsmall_prepend 187025
vecsmall_reverse 3052
vecsmall_shorten 77080
vecsmall_to_col 7993328
vecsmall_to_vec 513109
vecsmall_to_vec_inplace 3304
vecsmallpermute 79342222
vecsmalltrunc_append 101231027
vecsmalltrunc_init 255276158
vecsplice 385296
vectrunc_append 15914798
vectrunc_append_batch 9667
vectrunc_init 11795682
zc_to_ZC 7978782
zero_F2m 0
zero_F2m_copy 847287
zero_F2v 3663697
zero_F2x 1350
zero_Flm 2854865
zero_Flm_copy 241031
zero_Flv 61813875
zero_Flx 3256234
zero_zm 0
zero_zv 39185041
zero_zx 0
zerocol 125338501
zeromat 108900
zeromatcopy 14383585
zeropadic 858086
zeropadic_shallow 17150
zeropol 42429156
zeroser 139020
zerovec 29356742
zerovec_block 29675
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 1879793
zv_to_ZV 504205
zv_to_zx 104146
zx_renormalize 14049
zx_shift 0
zx_to_zv 0

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