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 - basemath - Flx.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30657-d14c2a9e4e) Lines: 2553 2925 87.3 %
Date: 2026-01-29 09:23:20 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449766
Fl2_inv_pre 197244
Fl2_mul_pre 1953547
Fl2_norm_pre 127572
Fl2_pow_pre 671517
Fl2_sqr_pre 4911618
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76054
Fl_Flxq_log 35552
Fl_Xp1_powu 0
Fl_to_Flx 21946443
Flm_to_FlxV 2772
FlvV_polint_tree 2587223
Flv_Flm_polint 104560
Flv_inv 1744432
Flv_invVandermonde 153445
Flv_inv_i 1756443
Flv_inv_indir 52213
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21054595
Flv_inv_pre_inplace 19321105
Flv_polint 1485178
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745659
Flv_roots_to_pol 842001
Flv_to_Flx 25488837
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_eval_powers_pre 325147
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 26000
FlxM_eval_powers_pre 22302
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7099
FlxM_mul_Kronecker_i 81581
FlxM_neg 0
FlxM_pack_ZM 46835
FlxM_pack_ZM_bits 116239
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2485
FlxT_red 294709
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28962
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171881
FlxV_to_Flm_lg 12969377
FlxV_to_FlxX 397977
FlxV_to_ZXV 606845
FlxV_to_ZXV_inplace 3031564
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9845909
Flx_Fl_mul 7327004
Flx_Fl_mul_pre 18291455
Flx_Fl_mul_to_monic 11855942
Flx_Fl_sub 151683
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785949
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13168264
Flx_Flxq_eval 791304
Flx_Flxq_eval_pre 2444626
Flx_Frobenius 86619
Flx_Frobenius_pre 13812528
Flx_Laplace 27346
Flx_Newton 54100
Flx_add 66112931
Flx_addmulmul 416798
Flx_addshift 3729093
Flx_addspec 7259598
Flx_blocks 526195
Flx_blocks_Flm 12968996
Flx_composedprod 0
Flx_composedsum 27551
Flx_convol 0
Flx_deflate 420780
Flx_deriv 22981183
Flx_diff1 14395
Flx_digits 0
Flx_div_by_X_x 36574442
Flx_divrem 30450052
Flx_divrem_Barrett 604719
Flx_divrem_Barrettspec 906022
Flx_divrem_basecase 62287837
Flx_divrem_pre 79732932
Flx_double 2443925
Flx_equal 27291493
Flx_eval 20437811
Flx_eval2BILspec 603293
Flx_eval_powers_pre 48498451
Flx_eval_pre 136179838
Flx_extgcd 856796
Flx_extgcd_basecase 6286141
Flx_extgcd_halfgcd 146651
Flx_extgcd_pre 6286145
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109402
Flx_gcd 35013643
Flx_gcd_basecase 85777774
Flx_gcd_pre 87435147
Flx_get_red 14503734
Flx_get_red_pre 97473562
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1127362
Flx_halfgcd_all_pre 1127371
Flx_halfgcd_pre 873288
Flx_halfres_basecase 1134443
Flx_halfres_i 1154406
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160261
Flx_integ 0
Flx_integXn 422795
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134387
Flx_invBarrett_pre 158849
Flx_invLaplace 54377
Flx_is_l_pow 8184
Flx_is_smooth 74256
Flx_is_smooth_pre 118731
Flx_is_smooth_squarefree 126926
Flx_is_squarefree 9181094
Flx_lgrenormalizespec 2134980
Flx_matFrobenius 0
Flx_matFrobenius_pre 86567
Flx_mod_Xn1 31508
Flx_mod_Xnm1 4907384
Flx_mul 27815037
Flx_mul_pre 380012889
Flx_mulhigh_i 948128
Flx_mullimb 1185628885
Flx_mullimb_ok 3383816461
Flx_mulspec 385592766
Flx_mulspec_Kronecker 7354797
Flx_mulspec_basecase 347859886
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10141
Flx_mulspec_mulii_inflate 294045
Flx_mulspec_quartmulii 97166
Flx_neg 3264423
Flx_neg_inplace 1780025
Flx_negspec 3264406
Flx_normalize 64802822
Flx_powu 0
Flx_powu_pre 3921
Flx_recip 0
Flx_recipspec 7289593
Flx_red 1880462
Flx_rem 42226351
Flx_rem_basecase 799695518
Flx_rem_pre 923811502
Flx_renormalize 2154021693
Flx_rescale 1117
Flx_resultant 4731077
Flx_resultant_basecase_pre 14595420
Flx_resultant_pre 14597490
Flx_shift 27398497
Flx_shiftip 632920087
Flx_splitting 147383
Flx_sqr 354677
Flx_sqr_pre 276559330
Flx_sqrspec 276663111
Flx_sqrspec_Kronecker 695090
Flx_sqrspec_basecase 275928193
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2070
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138655135
Flx_subspec 898809
Flx_to_Flv 66651493
Flx_to_FlxX 71405
Flx_to_ZX 38300224
Flx_to_ZX_inplace 36575732
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204550
Flx_translate1 17055
Flx_translate1_basecase 29142
Flx_triple 1049261
Flx_unscale 0
Flx_val 4463938
Flx_valrem 28485590
Flxn_div 56357
Flxn_div_pre 56370
Flxn_exp 0
Flxn_expint 109398
Flxn_inv 1037
Flxn_mul 75847
Flxn_mul_pre 5179684
Flxn_mulhigh 526131
Flxn_recip 217406
Flxn_red 6361185
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 234845
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 113589
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20696
Flxq_autpow_pre 69450
Flxq_autpow_sqr 47313
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112472
Flxq_autsum_pre 98768
Flxq_autsum_sqr 105110
Flxq_auttrace 0
Flxq_auttrace_mul 780266
Flxq_auttrace_pre 960064
Flxq_auttrace_sqr 652921
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2416846
Flxq_easylog 519368
Flxq_inv 335771
Flxq_inv_pre 4286541
Flxq_invsafe 670250
Flxq_invsafe_pre 5429376
Flxq_is2npower 0
Flxq_issquare 404492
Flxq_log 164210
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170663
Flxq_minpoly 45937
Flxq_minpoly_pre 809760
Flxq_mul 13192522
Flxq_mul_pre 188766595
Flxq_norm 443125
Flxq_order 97328
Flxq_pow 948272
Flxq_pow_Frobenius 22740304
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23803805
Flxq_pow_table 0
Flxq_pow_table_pre 4392
Flxq_powers 232017
Flxq_powers_pre 22435683
Flxq_powu 488332
Flxq_powu_pre 24180522
Flxq_sqr 2763157
Flxq_sqr_pre 275581378
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40915
Flxq_sumautsum_pre 210713
Flxq_sumautsum_sqr 295314
Flxq_trace 4696
Flxq_transmul 4213034
Flxq_transmul_init 1746552
RgXV_to_FlxV 7
RgX_to_Flx 2249947
Rg_to_F2 1710158
Rg_to_Fl 73210068
Rg_to_Flxq 3588265
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3813167
ZXV_to_FlxV 0
ZX_to_Flx 171005187
Z_mod2BIL_Flx 305859
Z_mod2BIL_Flx_2 308789
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556632
ZpX_invLaplace_init 497
_Fl2_mul 1924500
_Fl2_pow 671494
_Fl2_rand 113880
_Fl2_sqr 4911609
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11770564
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 147556123
_Flxq_neg 366572
_Flxq_one 22437494
_Flxq_pow 22732897
_Flxq_powu 68
_Flxq_powu_i 22925325
_Flxq_rand 6562
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267713700
bounded_order 395382
gener_Flxq 7201
get_Fl_threshold 2328952733
get_Flx_red 987850155
get_Flxq_field 68902
get_Flxq_star 283439
init_invlaplace 12514
int_to_Flx 12215
int_to_Flx_half 507058
int_to_Flx_quart 107384
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20997236
kron_pack_Flx_spec_half 688104
kron_unpack_Flx 42785
kron_unpack_Flx_2 2930
kron_unpack_Flx_3 0
kron_unpack_Flx_bits_narrow 5663786
kron_unpack_Flx_bits_wide 5668363
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8483394
mkF2 7325485
monomial_Flx 941353
random_Flx 2646275
set_Flxq 68922
set_Flxq_pre 69721869
translate_basecase 42310
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6389630

Generated by: LCOV version 1.16