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 - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30640-c2c58e18c5) Lines: 1865 1987 93.9 % Date: 2026-01-27 08:51:18 Functions: 105 105 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
Leading_is_neg	57792799
Q_to_Fp	226838
Qdivii	136208967
Qdivis	1588262
Qdiviu	143106203
Zp_nosquare_m1	42
_serprec	7185086
addQp	4762940
addRc	294756906
addRq	1240
addTp	7
add_intmod_same	3342958
add_rfrac	3018271
add_rfrac_scal	8811940
add_scal	41603052
add_ser_scal	414401
addqf	77
addsub_frac	40213231
addsub_frac_i	13930856
addsub_polmod	7203
addsub_polmod_scal	13428906
addsub_pp	19972586
conj_i	30311385
conjvec	84
divRc	2158068
divRq	301
divTp	3674
div_T_scal	6506006
div_intmod_same	341120
div_polmod_same	36926
div_rfrac	1187237
div_rfrac_pol	262344
div_rfrac_scal	32139
div_scal_T	9265322
div_scal_pol	9257079
div_scal_rfrac	37767
div_scal_ser	19096
div_ser	774252
div_ser_scal	1343391
divcR	22295314
divfq	42
divpT	1204917
divpp	13212905
divqf	63
divrunextu	212071554
fill_ser	5715854
fix_rfrac	207739
gadd	5959430843
gaddsg	270693909
gconj	388791
gdiv	427324903
gdivgs	12622214
gdivgu	60222037
gdivgunextu	1583803
ginv	34946957
gmul	8347720469
gmul2n	139549393
gmulsg	226651268
gmulug	282633046
gred_rfrac2	44825557
gred_rfrac_simple	57796888
gsqr	1163715594
gsub	2785150765
gsubsg	3234147
init_ser	5728306
inv_polmod	189597
is_ext_qfr	98
kro_quad	35
mkpadic_mod	24593540
mulRc	333508104
mulRq	2276
mulTp	4984991
mul_gen_rfrac	161432
mul_intmod_same	2628200
mul_polmod	2674945
mul_polmod_same	8529624
mul_polmod_scal	3236219
mul_rfrac	7910299
mul_rfrac_scal	10454863
mul_scal	149183120
mul_self_scal	7537863
mul_ser_scal	321223
mulcIR	10565088
mulcc	247394831
mulcxI	14169194
mulcxmI	2985859
mulcxpowIs	5563157
mulpp	17503028
mulqf	28
mulqq	1103
mulrfrac	37685208
quad_polmod_conj	18403
quad_polmod_mul	5860179
quad_polmod_norm	18403
rfrac_denom_mul_scal	9959106
ser_add	3592942
ser_normalize	7658
setfrac	14765140
sqr_polmod	419385
sqr_ser_part	113207
sqrq	70
sub_intmod_same	1027929
transtype	154402745
utoi_sign	61608778
warn_coercion	105

Generated by: LCOV version 1.16