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 30674-be81ecfdd4) Lines: 2553 2925 87.3 %
Date: 2026-02-11 09:23:10 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 2068
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_powu_pre 3875
_Flx_composedsum 3882
Flxq_pow_table_pre 4391
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_rand 6559
_Flxq_s 6567
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8131
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9644
Flx_mulspec_mulii 10142
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 12215
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 23161
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26000
Flx_Laplace 27359
Flx_composedsum 27551
FlxV_composedsum 28956
Flx_translate1_basecase 29202
Flx_mod_Xn1 31510
FlxV_Flc_mul 34482
Fl_Flxq_log 35541
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 52214
kron_pack_Flx_spec 53168
Flx_Newton 54097
Flx_invLaplace 54369
Flxn_div 56342
Flxn_div_pre 56360
ZM_unpack_FlxM_bits 58160
Fl2_sqrt_pre 65849
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69449
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75837
Fl2_sqrtn_pre 76102
FlxM_mul_Kronecker_i 81581
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
Flx_matFrobenius_pre 86566
Flx_Frobenius 86617
Flx_mulspec_quartmulii 97166
Flxq_order 97328
Flxq_autsum_pre 98768
FlxC_to_ZXC 104060
Flv_Flm_polint 104559
Flxq_autsum_sqr 105110
int_to_Flx_quart 107385
Flxn_expint 109400
Flx_fromNewton 109404
Flxq_autsum_mul 112472
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113918
FlxM_pack_ZM_bits 116239
Flx_is_smooth_pre 118147
Flx_is_smooth_squarefree 126277
Fl2_norm_pre 127594
Flx_invBarrett_basecase 134391
Flx_extgcd_halfgcd 146653
Flx_splitting 147042
Flx_Fl_sub 151679
Flv_invVandermonde 153445
Flx_invBarrett_pre 158851
Flx_inflate 159935
Flxq_log 164210
Flxq_matrix_pow_pre 170658
FlxV_to_Flm 171879
Fl2_inv_pre 197380
Flx_to_int_quartspec 204548
Flxq_sumautsum_pre 210713
Flxn_recip 217412
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_powers 232003
FlxqC_red_pre 234845
Flxq_div 237891
get_Flxq_star 283439
FlxT_red 291674
Flx_mulspec_mulii_inflate 294045
Flxq_sumautsum_sqr 295314
Z_mod2BIL_Flx 305859
Z_mod2BIL_Flx_2 308789
FlxC_eval_powers_pre 325157
Flxq_inv 335769
Flx_sqr 354627
_Flxq_neg 366572
_Flxq_add 389834
bounded_order 395381
FlxV_to_FlxX 397977
Flxq_issquare 404492
Flx_addmulmul 416796
Flx_deflate 420785
Flx_integXn 422812
Flxq_norm 443138
Fl2_equal1 450072
Flx_to_int_halfspec 468590
Flxq_powu 488342
int_to_Flx_half 507058
Flxq_easylog 519348
Flxn_mulhigh 526354
Flx_blocks 526406
Flx_eval2BILspec 603293
Flx_divrem_Barrett 603875
FlxV_to_ZXV 606829
Flxq_auttrace_sqr 652850
Flxq_invsafe 670379
_Fl2_pow 671924
Fl2_pow_pre 671932
kron_pack_Flx_spec_half 688104
Flx_sqrspec_Kronecker 695033
Flxq_auttrace_mul 780165
Flx_Flxq_eval 791298
Flxq_minpoly_pre 809752
Flv_roots_to_pol 842009
Flx_extgcd 856780
Flx_halfgcd_pre 873314
Flx_subspec 897706
Flx_divrem_Barrettspec 905443
monomial_Flx 941380
Flxq_pow 948249
Flx_mulhigh_i 948395
Flxq_auttrace_pre 960013
Flx_triple 1049261
Flx_halfgcd_all_i 1126832
Flx_halfgcd_all_pre 1126836
Flx_halfres_basecase 1133908
Flx_halfres_i 1153875
_Flxq_rmul 1461838
Flv_polint 1485154
_Flxq_red 1550928
Rg_to_F2 1710078
Flv_inv 1744426
Flv_producttree 1745637
Flxq_transmul_init 1746584
Flv_inv_i 1756439
Flx_neg_inplace 1780025
Flx_Flv_multieval_tree 1785929
Flx_red 1877780
_Fl2_mul 1925560
Fl2_mul_pre 1954603
Flx_lgrenormalizespec 2133095
RgX_to_Flx 2205414
Flxq_div_pre 2416846
Flx_double 2443925
Flx_Flxq_eval_pre 2444592
FlvV_polint_tree 2587373
random_Flx 2646265
Flxq_sqr 2763152
FlxV_to_ZXV_inplace 3031594
Flx_neg 3263652
Flx_negspec 3263653
Rg_to_Flxq 3588293
Flx_addshift 3729093
ZXT_to_FlxT 3812302
Flxq_transmul 4213159
Flxq_inv_pre 4286484
Flx_val 4476630
Flx_resultant 4731609
Flx_mod_Xnm1 4907389
_Fl2_sqr 4914268
Fl2_sqr_pre 4914296
Flxn_mul_pre 5181417
Flxq_invsafe_pre 5429469
kron_unpack_Flx_bits_narrow 5661206
kron_unpack_Flx_bits_wide 5668714
Flx_extgcd_basecase 6286197
Flx_extgcd_pre 6286221
Flxn_red 6363853
zx_to_Flx 6421779
Flx_addspec 7259598
Flx_recipspec 7287232
Flx_Fl_mul 7326742
mkF2 7329588
Flx_mulspec_Kronecker 7352492
Z_to_Flx 7556431
maxbitcoeffpol 8481272
Flx_is_squarefree 9181113
Flx_Fl_add 9847909
_Flx_mul 11784615
Flx_Fl_mul_to_monic 11857873
Flx_blocks_Flm 12969016
FlxV_to_Flm_lg 12969352
Flx_FlxqV_eval_pre 13168313
Flxq_mul 13192551
Flx_Frobenius_pre 13812947
Flx_get_red 14504281
Flx_resultant_basecase_pre 14596385
Flx_resultant_pre 14598447
Flx_Fl_mul_pre 18290360
Flv_inv_pre_inplace 19410636
Flx_eval 20446055
kron_pack_Flx_spec_bits 20993005
Flv_inv_pre_indir 21147388
Fl_to_Flx 21951890
Flxq_powers_pre 22437635
_Flxq_one 22438503
_Flxq_powu_i 22925385
Flx_deriv 22980805
_Flxq_pow 23117782
Flxq_pow_Frobenius 23125190
Flxq_powu_pre 24178320
Flxq_pow_pre 24188650
Flv_to_Flx 25488182
Flx_shift 27401137
Flx_equal 27682567
Flx_mul 27785057
Flx_valrem 28518253
Flx_divrem 30448050
Flx_gcd 35020497
Flx_to_ZX_inplace 36548842
Flx_div_by_X_x 36579711
Flx_to_ZX 38299920
Flx_rem 42227958
Flx_eval_powers_pre 48634897
Flx_divrem_basecase 62280965
Flx_normalize 64855628
Flx_add 66133601
Flx_to_Flv 66651466
set_Flxq_pre 70105188
Rg_to_Fl 72937023
Flx_divrem_pre 79725708
Flx_gcd_basecase 85787749
Flx_gcd_pre 87447621
Flx_get_red_pre 97859408
Flx_eval_pre 136190549
Flx_sub 138650267
_Flxq_mul 148429262
ZX_to_Flx 170998632
Flxq_mul_pre 189631724
_Flxq_sqr 268522299
Flxq_sqr_pre 276355714
Flx_sqrspec_basecase 276630548
Flx_sqr_pre 277303617
Flx_sqrspec 277436166
Flx_mulspec_basecase 348795505
Flx_mul_pre 380954268
Flx_mulspec 386557045
Flx_shiftip 634724829
Flx_rem_basecase 801515987
Flx_rem_pre 925628355
get_Flx_red 989681280
Flx_mullimb 1188094149
Flx_renormalize 2158399598
get_Fl_threshold 2334806935
Flx_mullimb_ok 3398936065

Generated by: LCOV version 1.16