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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - polarit3.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30634-7c77b4d1a9) Lines: 1903 2156 88.3 % Date: 2026-01-25 09:23:13 Functions: 205 225 91.1 % Legend: Lines: hit not hit

Function Name	Hit count
Fl_chinese_coprime	5162805
FlxX_pseudorem	7516
FlxX_resultant	0
FlxX_resultant_polint	1117892
FlxX_resultant_pre	0
FlxX_resultant_subres	2515
FlxY_eval_resultant	4347108
FlxY_evalx_drop	2114193
FlxY_to_FlyX	6125
Flx_FlxY_eval_resultant	5518415
Flx_FlxY_resultant	6125
Flx_FlxY_resultant_polint	367272
Flx_Lazard	1977
Flx_resultant_all	2090229
Flx_resultant_set_dglist	23720
FpXC_center	5467
FpXM_center	1800
FpXQX_FpXQ_translate	33887
FpXQX_FpXQ_translate_basecase	33887
FpXQX_XpN_powu	0
FpXQX_normalize	38189
FpXV_FpC_mul	851487
FpXV_composedsum	1588
FpXY_FpXQ_evaly	2072
FpX_FpXY_eval_resultant	284
FpX_FpXY_resultant	15
FpX_Fp_translate	1134
FpX_Fp_translate_basecase	700
FpX_composedprod	0
FpX_composedsum	93
Fp_XpN_powu	434
FqC_FqV_mul	105
FqC_Fq_mul	0
FqC_add	0
FqC_red	24058
FqC_sub	0
FqC_to_FlxqC	109021
FqM_add	0
FqM_red	1701
FqM_sub	0
FqM_to_FlxqM	8708
FqV_red	109467
FqV_roots_to_pol	40451
FqXQ_matrix_pow	0
FqXQ_powers	0
FqXY_eval	14623
FqXY_evalx	97391
FqX_Fq_add	55832
FqX_Fq_mul_to_monic	149052
FqX_Fq_sub	1059
FqX_Fq_translate	33880
FqX_eval	391144
Fq_Fp_mul	43985
Fq_add	11593385
Fq_div	343791
Fq_halve	81417
Fq_inv	89311
Fq_invsafe	0
Fq_mul	8609163
Fq_mulu	490250
Fq_neg	1080059
Fq_neg_inv	0
Fq_pow	1088207
Fq_powu	15050
Fq_sqr	611236
Fq_sqrt	1893010
Fq_sqrtn	170786
Fq_sub	8563005
QXQ_charpoly	9793
QXQ_div	33207
QXQ_div_slice	121143
QXQ_div_worker	121144
QXQ_intnorm	0
QXQ_inv	145991
QXQ_inv_slice	212700
QXQ_inv_worker	212698
QXQ_mul	845890
QXQ_norm	19418
QXQ_sqr	407033
QX_disc	7
QX_resultant	56
RgC_to_FpC	1751090
RgC_to_FqC	219128
RgM_is_FpM	0
RgM_to_Flm	118296
RgM_to_FpM	222349
RgM_to_FqM	52325
RgV_is_FpV	0
RgV_to_Flv	369001
RgV_to_FpV	140
RgX_RgXY_ResBound	8207
RgX_RgXY_ResBound_1	854
RgX_is_FpX	28009544
RgX_is_FpXQX	3395
RgX_is_ZXX	2021071
RgX_norml1_1	3283
RgX_to_FpX	3335594
RgX_to_FpXQX	5105
RgX_to_FqX	49186
Rg_is_Fp	70277007
Rg_is_FpXQ	60900
Rg_to_Fp	52334109
Rg_to_FpXQ	1291986
ZM_incremental_CRT	7787
ZM_init_CRT	5985
ZXM_incremental_CRT	653
ZXM_init_CRT	679
ZXQX_composedsum	315
ZXQX_composedsum_bound	315
ZXQX_composedsum_slice	359
ZXQX_composedsum_worker	359
ZXQX_disc_all	3941
ZXQX_resultant_all	4004
ZXQX_resultant_bound	4007
ZXQX_resultant_bound_i	4322
ZXQX_resultant_prime	11039
ZXQX_resultant_slice	4925
ZXQX_resultant_worker	4925
ZXQ_charpoly	1247143
ZXQ_charpoly_sqf	22595
ZXQ_minpoly	1701
ZXQ_minpoly_slice	3523
ZXQ_minpoly_worker	3523
ZXX_ResBound	1010374
ZXX_is_sparse	2020807
ZXX_resultant	1010411
ZXX_resultant_interp	1010375
ZXX_resultant_prime	1117891
ZXX_resultant_slice	1015676
ZXX_resultant_worker	1015676
ZX_ZXY_ResBound	166058
ZX_ZXY_ResBound_1	10084
ZX_ZXY_resultant	78550
ZX_ZXY_resultant_LERS	22337
ZX_ZXY_resultant_all	60116
ZX_ZXY_resultant_prime	363662
ZX_ZXY_resultant_slice	124310
ZX_ZXY_resultant_worker	124310
ZX_ZXY_rnfequation	60549
ZX_ZXY_rnfequation_lambda	40509
ZX_composedsum	385
ZX_composedsum_i	10084
ZX_composedsum_slice	10349
ZX_composedsum_worker	10350
ZX_compositum	9698
ZX_compositum_lambda	9696
ZX_disc	1137870
ZX_disc_all	1199913
ZX_discbound	1134620
ZX_incremental_CRT	0
ZX_incremental_CRT_raw	148352
ZX_init_CRT	32466
ZX_norml1	1296571
ZX_norml1_1	31649
ZX_resultant	55867
ZX_resultant_all	1346844
ZX_resultant_prime	3864658
ZX_resultant_slice	1494889
ZX_resultant_worker	1494917
Z_incremental_CRT	7525
Z_init_CRT	357
_FpX_composedsum	93
_Fq_add	362523
_Fq_equal0	38388
_Fq_inv	9331
_Fq_mul	243341
_Fq_neg	315028
_Fq_red	303247
_Fq_s	4151
_ZXQ_powu	56
addii_abs	25554
char_update_int	6594
char_update_prime	1225
charact	177338
charact_res	4739
characteristic	28014
checkmap	2261
err_compo	84
ffcompomap	420
ffeltmap_i	2709
ffeltmaprel_i	252
ffembed	189
ffextend	91
fffrobenius	42
ffinit	567
ffinit_Artin_Schreier	957
ffinit_Artin_Schreier_2	600
ffinit_fact	1588
ffinit_fact_Flx	28963
ffinit_rand	0
ffinvmap	133
ffmap	1036
ffmap_i	4459
ffmaprel	252
ffmaprel_i	252
ffnbirred	3178
ffnbirred0	140
ffpartmapimage	1260
ffsumnbirred	616
flinit	31888
flinit_check	149424
fpinit	1681
fpinit_check	7325
gen_crt	2283922
gen_inccrt	3071252
gen_inccrt_i	8784129
get_Fq_field	4725
init_Flxq	0
init_Flxq_i	52915
init_Fq	54604
init_Fq_i	55171
log2N2	176144
monomial	13634112
monomialcopy	157969
nfX_disc	4172
nfX_resultant	119
nf_direct_compositum	315
pol_x_powers	325813
primelist	9372490
resbound	2186783
residual_characteristic	329
sqrN2	9061
swap_vars	146144
to_ZX	252
vecbinomial_Fp	0

Generated by: LCOV version 1.16