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 30603-c72b2decfc) Lines: 2553 2925 87.3 %
Date: 2026-01-07 09:21:48 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449692
Fl2_inv_pre 197277
Fl2_mul_pre 1952739
Fl2_norm_pre 127605
Fl2_pow_pre 671482
Fl2_sqr_pre 4908550
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76065
Fl_Flxq_log 35535
Fl_Xp1_powu 0
Fl_to_Flx 21936135
Flm_to_FlxV 2772
FlvV_polint_tree 2587205
Flv_Flm_polint 104558
Flv_inv 1744512
Flv_invVandermonde 153445
Flv_inv_i 1756526
Flv_inv_indir 52216
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21079336
Flv_inv_pre_inplace 19346288
Flv_polint 1485235
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745718
Flv_roots_to_pol 841907
Flv_to_Flx 25486277
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 325154
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 299242
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28971
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171888
FlxV_to_Flm_lg 12967323
FlxV_to_FlxX 397977
FlxV_to_ZXV 606762
FlxV_to_ZXV_inplace 3031570
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9842575
Flx_Fl_mul 7327607
Flx_Fl_mul_pre 18289377
Flx_Fl_mul_to_monic 11854276
Flx_Fl_sub 151682
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786022
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13166043
Flx_Flxq_eval 791332
Flx_Flxq_eval_pre 2444646
Flx_Frobenius 86619
Flx_Frobenius_pre 13812054
Flx_Laplace 27343
Flx_Newton 54105
Flx_add 66099987
Flx_addmulmul 416799
Flx_addshift 3724675
Flx_addspec 7250880
Flx_blocks 516999
Flx_blocks_Flm 12966734
Flx_composedprod 0
Flx_composedsum 27547
Flx_convol 0
Flx_deflate 420768
Flx_deriv 22981407
Flx_diff1 14446
Flx_digits 0
Flx_div_by_X_x 36535737
Flx_divrem 30447234
Flx_divrem_Barrett 605984
Flx_divrem_Barrettspec 907358
Flx_divrem_basecase 62275072
Flx_divrem_pre 79715709
Flx_double 2443925
Flx_equal 27715423
Flx_eval 20434058
Flx_eval2BILspec 603293
Flx_eval_powers_pre 48516718
Flx_eval_pre 136183037
Flx_extgcd 856690
Flx_extgcd_basecase 6285951
Flx_extgcd_halfgcd 146650
Flx_extgcd_pre 6285958
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109401
Flx_gcd 35011555
Flx_gcd_basecase 85760095
Flx_gcd_pre 87417939
Flx_get_red 14502651
Flx_get_red_pre 97885911
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1126770
Flx_halfgcd_all_pre 1126773
Flx_halfgcd_pre 873120
Flx_halfres_basecase 1133844
Flx_halfres_i 1153813
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160538
Flx_integ 0
Flx_integXn 422742
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134389
Flx_invBarrett_pre 158849
Flx_invLaplace 54359
Flx_is_l_pow 8091
Flx_is_smooth 74256
Flx_is_smooth_pre 117612
Flx_is_smooth_squarefree 125713
Flx_is_squarefree 9180767
Flx_lgrenormalizespec 2137172
Flx_matFrobenius 0
Flx_matFrobenius_pre 86566
Flx_mod_Xn1 31508
Flx_mod_Xnm1 4907232
Flx_mul 27809222
Flx_mul_pre 380744615
Flx_mulhigh_i 938668
Flx_mullimb 1185474422
Flx_mullimb_ok 3392260692
Flx_mulspec 386329292
Flx_mulspec_Kronecker 7352112
Flx_mulspec_basecase 348648429
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10138
Flx_mulspec_mulii_inflate 294045
Flx_mulspec_quartmulii 97166
Flx_neg 3265591
Flx_neg_inplace 1777875
Flx_negspec 3265585
Flx_normalize 64773371
Flx_powu 0
Flx_powu_pre 3996
Flx_recip 0
Flx_recipspec 7290507
Flx_red 1884459
Flx_rem 42228296
Flx_rem_basecase 800811183
Flx_rem_pre 924817854
Flx_renormalize 2155605211
Flx_rescale 1117
Flx_resultant 4733319
Flx_resultant_basecase_pre 14597848
Flx_resultant_pre 14599990
Flx_shift 27378287
Flx_shiftip 633935040
Flx_splitting 147894
Flx_sqr 354774
Flx_sqr_pre 276779479
Flx_sqrspec 276903061
Flx_sqrspec_Kronecker 695142
Flx_sqrspec_basecase 276200002
Flx_sqrspec_halfsqri 135
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2069
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138630575
Flx_subspec 899815
Flx_to_Flv 66642310
Flx_to_FlxX 71405
Flx_to_ZX 38297969
Flx_to_ZX_inplace 36570770
Flx_to_int_halfspec 468589
Flx_to_int_quartspec 204550
Flx_translate1 17106
Flx_translate1_basecase 29200
Flx_triple 1049261
Flx_unscale 0
Flx_val 4467297
Flx_valrem 28442427
Flxn_div 55188
Flxn_div_pre 55199
Flxn_exp 0
Flxn_expint 109401
Flxn_inv 1037
Flxn_mul 75848
Flxn_mul_pre 5159390
Flxn_mulhigh 516921
Flxn_recip 217364
Flxn_red 6330171
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 69448
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 780054
Flxq_auttrace_pre 959838
Flxq_auttrace_sqr 652735
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237864
Flxq_div_pre 2416818
Flxq_easylog 519356
Flxq_inv 335766
Flxq_inv_pre 4286490
Flxq_invsafe 670208
Flxq_invsafe_pre 5429267
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 170665
Flxq_minpoly 45937
Flxq_minpoly_pre 809622
Flxq_mul 13192373
Flxq_mul_pre 189552047
Flxq_norm 443140
Flxq_order 97328
Flxq_pow 948231
Flxq_pow_Frobenius 23167470
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24230895
Flxq_pow_table 0
Flxq_pow_table_pre 4392
Flxq_powers 232033
Flxq_powers_pre 22434279
Flxq_powu 488340
Flxq_powu_pre 24171831
Flxq_sqr 2763158
Flxq_sqr_pre 275818939
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 4212450
Flxq_transmul_init 1746211
RgXV_to_FlxV 7
RgX_to_Flx 2249938
Rg_to_F2 1710449
Rg_to_Fl 73209011
Rg_to_Flxq 3588245
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3814311
ZXV_to_FlxV 0
ZX_to_Flx 171014085
Z_mod2BIL_Flx 305859
Z_mod2BIL_Flx_2 308789
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556732
ZpX_invLaplace_init 497
_Fl2_mul 1923689
_Fl2_pow 671469
_Fl2_rand 113831
_Fl2_sqr 4908543
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11767867
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 148344713
_Flxq_neg 366572
_Flxq_one 22434101
_Flxq_pow 23160061
_Flxq_powu 68
_Flxq_powu_i 22917951
_Flxq_rand 6549
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267923795
bounded_order 395373
gener_Flxq 7201
get_Fl_threshold 2332221040
get_Flx_red 988817520
get_Flxq_field 68902
get_Flxq_star 283439
init_invlaplace 12514
int_to_Flx 12216
int_to_Flx_half 507058
int_to_Flx_quart 107385
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20992239
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 5661823
kron_unpack_Flx_bits_wide 5668649
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8481562
mkF2 7321168
monomial_Flx 941188
random_Flx 2645842
set_Flxq 68922
set_Flxq_pre 70135310
translate_basecase 42365
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6393303

Generated by: LCOV version 1.16