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: 2026-02-02 09:23:03 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450261
Fl2_inv_pre 197534
Fl2_mul_pre 1953577
Fl2_norm_pre 127599
Fl2_pow_pre 672224
Fl2_sqr_pre 4910607
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76068
Fl_Flxq_log 35556
Fl_Xp1_powu 0
Fl_to_Flx 21953737
Flm_to_FlxV 2772
FlvV_polint_tree 2587377
Flv_Flm_polint 104559
Flv_inv 1744417
Flv_invVandermonde 153445
Flv_inv_i 1756427
Flv_inv_indir 52214
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21157013
Flv_inv_pre_inplace 19428319
Flv_polint 1485155
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745631
Flv_roots_to_pol 842025
Flv_to_Flx 25488459
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 325149
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 295724
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28964
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171885
FlxV_to_Flm_lg 12968852
FlxV_to_FlxX 397977
FlxV_to_ZXV 606851
FlxV_to_ZXV_inplace 3031532
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9848196
Flx_Fl_mul 7327440
Flx_Fl_mul_pre 18290989
Flx_Fl_mul_to_monic 11858272
Flx_Fl_sub 151682
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785925
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13167771
Flx_Flxq_eval 791317
Flx_Flxq_eval_pre 2444653
Flx_Frobenius 86619
Flx_Frobenius_pre 13812588
Flx_Laplace 27344
Flx_Newton 54096
Flx_add 66142629
Flx_addmulmul 416798
Flx_addshift 3729093
Flx_addspec 7259598
Flx_blocks 526223
Flx_blocks_Flm 12968318
Flx_composedprod 0
Flx_composedsum 27556
Flx_convol 0
Flx_deflate 420782
Flx_deriv 22981164
Flx_diff1 14448
Flx_digits 0
Flx_div_by_X_x 36583160
Flx_divrem 30450689
Flx_divrem_Barrett 605003
Flx_divrem_Barrettspec 906500
Flx_divrem_basecase 62283299
Flx_divrem_pre 79728466
Flx_double 2443925
Flx_equal 26950406
Flx_eval 20436033
Flx_eval2BILspec 603295
Flx_eval_powers_pre 48635311
Flx_eval_pre 136181962
Flx_extgcd 856793
Flx_extgcd_basecase 6286170
Flx_extgcd_halfgcd 146651
Flx_extgcd_pre 6286144
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109401
Flx_gcd 35025840
Flx_gcd_basecase 85793802
Flx_gcd_pre 87455920
Flx_get_red 14504778
Flx_get_red_pre 97128456
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1126789
Flx_halfgcd_all_pre 1126792
Flx_halfgcd_pre 873145
Flx_halfres_basecase 1133866
Flx_halfres_i 1153830
Flx_halfres_pre 1043
Flx_halfres_split 19962
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160412
Flx_integ 0
Flx_integXn 422782
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134390
Flx_invBarrett_pre 158852
Flx_invLaplace 54355
Flx_is_l_pow 8144
Flx_is_smooth 74256
Flx_is_smooth_pre 118276
Flx_is_smooth_squarefree 126466
Flx_is_squarefree 9180988
Flx_lgrenormalizespec 2133931
Flx_matFrobenius 0
Flx_matFrobenius_pre 86566
Flx_mod_Xn1 31511
Flx_mod_Xnm1 4907598
Flx_mul 27808361
Flx_mul_pre 379502005
Flx_mulhigh_i 948079
Flx_mullimb 1187330162
Flx_mullimb_ok 3372470566
Flx_mulspec 385112443
Flx_mulspec_Kronecker 7356108
Flx_mulspec_basecase 347370492
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10146
Flx_mulspec_mulii_inflate 294046
Flx_mulspec_quartmulii 97167
Flx_neg 3264697
Flx_neg_inplace 1780025
Flx_negspec 3264689
Flx_normalize 64834608
Flx_powu 0
Flx_powu_pre 3936
Flx_recip 0
Flx_recipspec 7289035
Flx_red 1881361
Flx_rem 42225672
Flx_rem_basecase 799172399
Flx_rem_pre 923244507
Flx_renormalize 2153693706
Flx_rescale 1117
Flx_resultant 4731540
Flx_resultant_basecase_pre 14596049
Flx_resultant_pre 14598099
Flx_shift 27398721
Flx_shiftip 632348953
Flx_splitting 147498
Flx_sqr 354708
Flx_sqr_pre 276451548
Flx_sqrspec 276564046
Flx_sqrspec_Kronecker 695105
Flx_sqrspec_basecase 275808005
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2069
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138650557
Flx_subspec 898902
Flx_to_Flv 66650512
Flx_to_FlxX 71405
Flx_to_ZX 38300904
Flx_to_ZX_inplace 36576851
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204552
Flx_translate1 17108
Flx_translate1_basecase 29202
Flx_triple 1049261
Flx_unscale 0
Flx_val 4478858
Flx_valrem 28493198
Flxn_div 56364
Flxn_div_pre 56379
Flxn_exp 0
Flxn_expint 109397
Flxn_inv 1037
Flxn_mul 75846
Flxn_mul_pre 5179665
Flxn_mulhigh 526165
Flxn_recip 217396
Flxn_red 6361629
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 20698
Flxq_autpow_pre 69454
Flxq_autpow_sqr 47324
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112490
Flxq_autsum_pre 98774
Flxq_autsum_sqr 105124
Flxq_auttrace 0
Flxq_auttrace_mul 780062
Flxq_auttrace_pre 959892
Flxq_auttrace_sqr 652778
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2416846
Flxq_easylog 519357
Flxq_inv 335772
Flxq_inv_pre 4286485
Flxq_invsafe 670283
Flxq_invsafe_pre 5429365
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 170666
Flxq_minpoly 45937
Flxq_minpoly_pre 809653
Flxq_mul 13192555
Flxq_mul_pre 188144983
Flxq_norm 443136
Flxq_order 97328
Flxq_pow 948300
Flxq_pow_Frobenius 22390023
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23453421
Flxq_pow_table 0
Flxq_pow_table_pre 4391
Flxq_powers 232024
Flxq_powers_pre 22438661
Flxq_powu 488344
Flxq_powu_pre 24180687
Flxq_sqr 2763153
Flxq_sqr_pre 275452473
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_sqrtl_spec_pre 37666
Flxq_sqrtn 23092
Flxq_sqrtn_spec_pre 21900
Flxq_sumautsum_msqr 40915
Flxq_sumautsum_pre 210713
Flxq_sumautsum_sqr 295314
Flxq_trace 4696
Flxq_transmul 4212428
Flxq_transmul_init 1746264
RgXV_to_FlxV 7
RgX_to_Flx 2249956
Rg_to_F2 1710180
Rg_to_Fl 73209793
Rg_to_Flxq 3588303
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3813525
ZXV_to_FlxV 0
ZX_to_Flx 171009406
Z_mod2BIL_Flx 305860
Z_mod2BIL_Flx_2 308790
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556688
ZpX_invLaplace_init 497
_Fl2_mul 1924542
_Fl2_pow 672210
_Fl2_rand 113846
_Fl2_sqr 4910610
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11783598
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146938506
_Flxq_neg 366572
_Flxq_one 22439773
_Flxq_pow 22382610
_Flxq_powu 68
_Flxq_powu_i 22926402
_Flxq_rand 6589
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267613249
bounded_order 395416
gener_Flxq 7201
get_Fl_threshold 2327120058
get_Flx_red 987294342
get_Flxq_field 68902
get_Flxq_star 283436
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 20999123
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 5664682
kron_unpack_Flx_bits_wide 5668509
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8484569
mkF2 7324674
monomial_Flx 941225
random_Flx 2645939
set_Flxq 68922
set_Flxq_pre 69373815
translate_basecase 42367
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6426135

Generated by: LCOV version 1.16