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 30660-09c6d0ed2e) Lines: 2553 2925 87.3 %
Date: 2026-02-03 09:23:21 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl_Xp1_powu 0
Flv_prod 0
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_neg 0
FlxC_sub 0
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_neg 0
FlxM_sub 0
FlxM_to_FlxXV 0
FlxV_Flx_fromdigits 0
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_composedprod 0
Flx_convol 0
Flx_digits 0
Flx_halfgcd 0
Flx_integ 0
Flx_invBarrett 0
Flx_matFrobenius 0
Flx_powu 0
Flx_recip 0
Flx_unscale 0
Flxn_exp 0
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqM_Flxq_mul 0
FlxqV_dotproduct 0
Flxq_autsum 0
Flxq_auttrace 0
Flxq_is2npower 0
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_pow_init 0
Flxq_pow_table 0
ZXV_to_FlxV 0
Z_mod2BIL_Flx_3 0
_Flx_add 0
_Flx_divrem 0
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
kron_pack_Flx_spec_3 0
kron_unpack_Flx_3 0
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
Flxq_autpow 7
RgXV_to_FlxV 7
matJ2_FlxM 13
Flxq_conjvec 20
Flxq_pow_init_pre 28
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
_Flxq_powu 68
Flx_sqrspec_halfsqri 136
Flx_halfgcd_all 154
Flxq_matrix_pow 399
ZpX_invLaplace_init 497
matid2_FlxM 911
Flxn_inv 1037
Flx_halfres_pre 1044
Flx_rescale 1117
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2070
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxM_to_ZXM 2485
Flm_to_FlxV 2772
kron_unpack_Flx_2 2930
kron_pack_Flx_spec_2 3389
Flxq_charpoly 3625
Flv_prod_pre 3719
_Flx_composedsum 3882
Flx_powu_pre 3929
Flxq_pow_table_pre 4393
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_rand 6566
_Flxq_s 6567
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8215
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9645
Flx_mulspec_mulii 10131
Flx_sqrspec_quartsqri 10218
Flx_Fl2_eval_pre 10773
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12210
init_invlaplace 12514
Flx_halve 14026
Flx_diff1 14448
Flx_translate1 17108
Flx_halfres_split 19964
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21901
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23095
Flx_invBarrett_Newton 23159
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 25999
Flx_Laplace 27354
Flx_composedsum 27552
FlxV_composedsum 28963
Flx_translate1_basecase 29202
Flx_mod_Xn1 31510
FlxV_Flc_mul 34482
Fl_Flxq_log 35564
Flxq_sqrtl_spec_pre 37667
Flxq_sumautsum_msqr 40915
translate_basecase 42367
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47313
Flv_inv_indir 52210
kron_pack_Flx_spec 53168
Flx_Newton 54095
Flx_invLaplace 54361
Flxn_div 56352
Flxn_div_pre 56363
ZM_unpack_FlxM_bits 58160
Fl2_sqrt_pre 65849
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69447
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75837
Fl2_sqrtn_pre 76080
FlxM_mul_Kronecker_i 81581
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
Flx_matFrobenius_pre 86568
Flx_Frobenius 86617
Flx_mulspec_quartmulii 97163
Flxq_order 97328
Flxq_autsum_pre 98768
FlxC_to_ZXC 104060
Flv_Flm_polint 104563
Flxq_autsum_sqr 105110
int_to_Flx_quart 107383
Flxn_expint 109393
Flx_fromNewton 109400
Flxq_autsum_mul 112472
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113943
FlxM_pack_ZM_bits 116239
Flx_is_smooth_pre 118847
Flx_is_smooth_squarefree 127101
Fl2_norm_pre 127579
Flx_invBarrett_basecase 134392
Flx_extgcd_halfgcd 146655
Flx_splitting 147436
Flx_Fl_sub 151684
Flv_invVandermonde 153445
Flx_invBarrett_pre 158853
Flx_inflate 160785
Flxq_log 164210
Flxq_matrix_pow_pre 170661
FlxV_to_Flm 171883
Fl2_inv_pre 197409
Flx_to_int_quartspec 204544
Flxq_sumautsum_pre 210713
Flxn_recip 217378
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_powers 232005
FlxqC_red_pre 234845
Flxq_div 237891
get_Flxq_star 283439
Flx_mulspec_mulii_inflate 294046
FlxT_red 295200
Flxq_sumautsum_sqr 295314
Z_mod2BIL_Flx 305860
Z_mod2BIL_Flx_2 308790
FlxC_eval_powers_pre 325141
Flxq_inv 335771
Flx_sqr 354700
_Flxq_neg 366572
_Flxq_add 389834
bounded_order 395386
FlxV_to_FlxX 397977
Flxq_issquare 404492
Flx_addmulmul 416804
Flx_deflate 420798
Flx_integXn 422788
Flxq_norm 443127
Fl2_equal1 450097
Flx_to_int_halfspec 468590
Flxq_powu 488351
int_to_Flx_half 507058
Flxq_easylog 519382
Flxn_mulhigh 526280
Flx_blocks 526340
Flx_eval2BILspec 603295
Flx_divrem_Barrett 604854
FlxV_to_ZXV 606831
Flxq_auttrace_sqr 652874
Flxq_invsafe 670352
_Fl2_pow 671939
Fl2_pow_pre 671951
kron_pack_Flx_spec_half 688104
Flx_sqrspec_Kronecker 695095
Flxq_auttrace_mul 780201
Flx_Flxq_eval 791306
Flxq_minpoly_pre 809741
Flv_roots_to_pol 842118
Flx_extgcd 856808
Flx_halfgcd_pre 873250
Flx_subspec 898724
Flx_divrem_Barrettspec 906314
monomial_Flx 941330
Flxq_pow 948294
Flx_mulhigh_i 948385
Flxq_auttrace_pre 959959
Flx_triple 1049261
Flx_halfgcd_all_i 1127144
Flx_halfgcd_all_pre 1127144
Flx_halfres_basecase 1134221
Flx_halfres_i 1154189
_Flxq_rmul 1461838
Flv_polint 1485174
_Flxq_red 1550928
Rg_to_F2 1710169
Flv_inv 1744446
Flv_producttree 1745654
Flxq_transmul_init 1746473
Flv_inv_i 1756457
Flx_neg_inplace 1780025
Flx_Flv_multieval_tree 1785947
Flx_red 1880888
_Fl2_mul 1925206
Fl2_mul_pre 1954305
Flx_lgrenormalizespec 2134975
RgX_to_Flx 2249957
Flxq_div_pre 2416845
Flx_double 2443925
Flx_Flxq_eval_pre 2444611
FlvV_polint_tree 2587405
random_Flx 2646079
Flxq_sqr 2763151
FlxV_to_ZXV_inplace 3031584
Flx_negspec 3264508
Flx_neg 3264526
Rg_to_Flxq 3588294
Flx_addshift 3729093
ZXT_to_FlxT 3813339
Flxq_transmul 4212834
Flxq_inv_pre 4286519
Flx_val 4463204
Flx_resultant 4731580
Flx_mod_Xnm1 4907048
_Fl2_sqr 4913230
Fl2_sqr_pre 4913293
Flxn_mul_pre 5180336
Flxq_invsafe_pre 5429490
kron_unpack_Flx_bits_narrow 5664245
kron_unpack_Flx_bits_wide 5670306
Flx_extgcd_pre 6286281
Flx_extgcd_basecase 6286294
Flxn_red 6362488
zx_to_Flx 6391240
Flx_addspec 7259598
Flx_recipspec 7289096
Flx_Fl_mul 7328039
mkF2 7328085
Flx_mulspec_Kronecker 7357128
Z_to_Flx 7556633
maxbitcoeffpol 8486000
Flx_is_squarefree 9181179
Flx_Fl_add 9846697
_Flx_mul 11785521
Flx_Fl_mul_to_monic 11857647
Flx_blocks_Flm 12968844
FlxV_to_Flm_lg 12969260
Flx_FlxqV_eval_pre 13167926
Flxq_mul 13192558
Flx_Frobenius_pre 13813739
Flx_get_red 14504167
Flx_resultant_basecase_pre 14596091
Flx_resultant_pre 14598236
Flx_Fl_mul_pre 18292841
Flv_inv_pre_inplace 19324137
Flx_eval 20421224
kron_pack_Flx_spec_bits 21001734
Flv_inv_pre_indir 21052007
Fl_to_Flx 21948259
_Flxq_pow 22409421
Flxq_pow_Frobenius 22416829
Flxq_powers_pre 22438622
_Flxq_one 22439399
_Flxq_powu_i 22928800
Flx_deriv 22981993
Flxq_pow_pre 23480303
Flxq_powu_pre 24183072
Flv_to_Flx 25488853
Flx_equal 26972200
Flx_shift 27400111
Flx_mul 27812694
Flx_valrem 28488090
Flx_divrem 30451972
Flx_gcd 35019126
Flx_div_by_X_x 36574868
Flx_to_ZX_inplace 36577566
Flx_to_ZX 38300907
Flx_rem 42212007
Flx_eval_powers_pre 48494480
Flx_divrem_basecase 62290499
Flx_normalize 64813041
Flx_add 66120241
Flx_to_Flv 66651138
set_Flxq_pre 69404998
Rg_to_Fl 73208971
Flx_divrem_pre 79735675
Flx_gcd_basecase 85783406
Flx_gcd_pre 87448730
Flx_get_red_pre 97158555
Flx_eval_pre 136161819
Flx_sub 138658433
_Flxq_mul 146966369
ZX_to_Flx 171008705
Flxq_mul_pre 188174792
_Flxq_sqr 267605798
Flxq_sqr_pre 275467204
Flx_sqrspec_basecase 275683641
Flx_sqr_pre 276431948
Flx_sqrspec 276513145
Flx_mulspec_basecase 347263373
Flx_mul_pre 379429278
Flx_mulspec 385012368
Flx_shiftip 632152342
Flx_rem_basecase 798999951
Flx_rem_pre 923113076
get_Flx_red 987158534
Flx_mullimb 1187947113
Flx_renormalize 2152914246
get_Fl_threshold 2326610393
Flx_mullimb_ok 3368711978

Generated by: LCOV version 1.16